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Service Manual - Driver Dll Service Manual User Guide

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Service Manual 686, AHYEON-DONG MAPOGU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA TELEX: DWELEC K28177-8 CABLE:"DAEWOOELEC" FAX: +82.2.364-5588 TEL: +82.2.360-7114, 8114 http://www.dwe.daewoo.co.kr S031GBA PRINTED DATE: OCT. 1997 DAEWOO ELECTRONICS CO., LTD OVERSEAS SERVICE DEPT. DEAWOO ELECTRONICS CO., LTD Service Manual Model : DV-K884N-SJ K884N-JJ K884N-SG K784N-SJ K784N-JJ K784N-SG K884NY-SJ/M K884NZ-SJ/M K884NZ-SG/M DV-K804N-SJ ✔ Caution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information,please refer to PPL(Parts Price List) in Service Information Center (http://svc.dwe.co.kr). DAEWOO ELECTRONICS CO., LTD OVERSEAS SERVICE DEPT. SPECIFICATIONS Power Input: Power Consumption: Operating Temperature: Storage Temperature: Weight: Dimensions: Video Signal: EIA standard; NTSC color Antenna: 75 ohm input impedance Video Signal Level: 1Vp-p (140 IRE standard) Audio Input Impedance: 47k ohms Audio Output Impedance: Less than 1.5k ohm Tape Speed: SP: 33.35mm/sec. SLP: 11.13mm/sec Maximum Recording Time: T-60: 3 hours/SLP mode T120: 6 hours/SLP mode Fast Forward/Rewind Time: 3 minutes (T-120 tape) Tuning System: Auto Program/Cable Compatible/Frequency Synthesis (FS) 110~250 Volts AC50/60Hz ¡ 120 Volts AC 60Hz ¡¡ 19 Watts (4-head Hi-Fi) 5 degree C to 40 degree C (41 degree F to 104 degree F) -30 degree C to 65 degree C (-22 degree F to 149 degree F) 3.8 kg 360mm Wide X 90mm High X 278mm Deep Recording System: 4-head Hi Fi: Four video record/playback heads Rotary helical scan/luma: FM recording/chroma: converted subcarrier phase shifted recording Two audio record/playback heads Rotary helical scan, 2 channels FM recording ¡:K884NY-SJ/M, K884NZ-SJ/M, K884NZ-SG/M ¡:K884N-SJ, K884N-JJ, K884N-SG, K784N-SJ, K784N-JJ, K784N-SG, K804N-SJ Note: Specifications are subject to change without notice. CLEANING AND LUBRICATION Cleaning and Lubrication A. Cleaning the Tape Transport System The following parts should be cleaned after every 500 hours of use. • TENSION POLE • S-GUIDE POST • FE HEAD • S GUIDE ROLLER • S-SLANT POLE • VIDEO HEAD/DRUM • T-SLANT POLE • T-GUIDE ROLLER • AC HEAD/AE HEAD • T-GUIDE POST • CAPSTAN SHAFT • PINCH ROLLER B. Cleaning the Drive System The following parts should be cleaned after every 500 hours of use. • REEL TABLE • T MAIN BRAKE • S MAIN BRAKE • T MAIN BRAKE • CAPSTAN FLYWHEEL/PULLEY • REEL PULLEY C. Lubrication points The following parts should be cleaned and lubricated after every 500 hours of use. Apply one (1) or two (2) drops of oil. Refer to the "Replacement Parts List" for the stock number of the recommended oil. • S REEL TABLE POST • T REEL TABLE POST • IDLER PULLEY Note: After cleaning with alcohol, allow the parts to dry thoroughly before using a cassette tape. 1 TEST EQUIPMENT REQUIREMENTS AC Millivolt Meter Sensitivity: 1.0mVAC–400VAC NTSC Video Signal Generator–Must provide 1V p-p negative sync video across a 75 ohm load and produce standard NTSC 75% saturated color bars with a 100% white window. Dual-Trace Triggered Oscilloscope–with Lo–Cap (X10) and Direct Probes. Response: DC–20MHz Sensitivity: 5mV/div. Max. Sweep Rate: 0.1µsec./div. DC Power Supply Range: 0-50V, 2A well filtered. Temperature Controlled Soldering Station–Grounded tip (Tip temperature: 500°F-600°F). Frequency Counter–7 digits Sensitivity: 25mV-5V Range: 50Hz–100MHz Note: 500 °F Maximum for leadless components. AC Variac–Continuously variable. DVM Range: 0.1VDC–1000VD Accuracy: 0.5% THE SERVICE FIXTURE FIXTURE ITEM DESCRIPTION Extension Cable 1 Use for K mecha Drum Motor Connecting Cable 97PB400100 Extension Cable 2 Use for K mecha Capstan Motor connecting Cable 97PB400200 Extension Cable 3 Use for K mecha A/C head and L/C Motor Connecting Cable 97PB400300 Path Adj Fixture Use for X-position adjust/Tape path alignment 97PB396000 Special Driver Use for X-position adjust/Tape path alignment Cable 1 Cable 2 P/N Cable 3 Path Adj Fixture 2 Special Driver EXTENSION CABLE CONNECTION A/C HEAD PCB L/C MOTOR PCB TO CAPSTAN MOTOR (CABLE2) TO DRUM MOTOR (CABLE1) (CABLE3) P201 P502 P601 P501 MAIN PCB 3 NOTE: PLACING THE UNIT IN THE SERVICE MODE Service option For this chassis, the sensors (start/end/reel) are located on the MAIN circuit board, not in the DECK assembly. There is an important service option that has to be followed to repair the MAIN circuit board with the DECK assembly connected. To imitate the function of the sensors, insert the SVC Mode Diode (D707) on the MAIN circuit board as shown below. D707 FWD POWER STOP/EJECT CH DN CH UP REC REW PLAY/PAUSE MAIN P.C.B (TOP SIDE) PATH FIXTURE CONNECTION/TEST POINT IDENTIFICATION Refer to the adjustment of the tape transporting system. ! ^ Connect to PT01, !pin-^pin of the MAIN CIRCUIT BOARD. GND CTL pulse test point S/W pulse test point ENVE pulse test point 4 LEADLESS (CHIP) COMPONENT REMOVAL INSTRUCTION • The following procedures are recommended for the replacement of the leadless components used in this unit. 1. Preparation for replacement 2. Removing the leadless component (Resistors, Capacitors) Grasp the leadless component body with tweezers and alternately apply heat to both electrodes. When the solder on both electrodes is melted, remove leadless component with a twisting motion. a. Soldering Iron Use a pencil-type soldering iron that uses less than 30 watts. b. Solder Eutectic solder (Tin 63%, Lead 37%) is recommended. c. Soldering time Do not apply heat more than 4 seconds. d. Preheating Leadless capacitor must be preheated before installation. (130°C~150°C, for about two minutes). Note: a. Do not attempt to lift the component off the board until the component is completely disconnected from the board by a twisting action. b. Take care not to break the copper foil on printed board. Note: a. Leadless component must not be reused after removal. b. Excessive mechanical stress and rubbing of the component electrode must be avoided. Tweezers Chip Soldering lron 5 3. Installing the Leadless (chip) Component 4. Removing of Flate ICs (Recommendable manner) 1) Presolder the contact points of the circuit board. 1) For removing solder chips from IC's pins, use a solder remover or a wiry solder absorber. 2) Heat the IC's tips evenly by moving the chip IC replacing tool around them, and detach the IC's leads with a tool in the way of using a lever. 3) Do not reuse ICs removed once (Discard them) Soldering lron Presolder Chip IC replacing tool 2) Press the part downward with tweezers and solder both electrodes as shown below. Note: Do not glue the replacement leadless component to the circuit board. Tweezers Soldering lron Solder 6 LEADLESS (CHIP) COMPONENT IDENTIFICATION 1. Check the followings before S.M.D Troubleshooting • Cracked or Chipped Component Body • Cracked or Separated Solder Joints • Peeling end Terminations or Fractured Leads • Rejection of Solder from Copper Pads or Component • Foreign Matter on Copper Pads • Solder Bridges 2. S. M. D (Surface Mounted Devices) Identification Examples 1) Chip Resistor Identification * Standard Chip Resistor Code 123 = 12x103 (1000) = 12000Ω = 12KΩ 470 = 47x10° (1) = 47Ω XXX MULTIPLIER (0-9) 2nd SIG. DIGIT (0-9) 1st SIG. DIGIT (1-9) 2) Chip Capacitor Identification There is no identification of chip capacitor REMARK Leadless (CHIP) Components are identified on schematic by means of "(C)" adjacent to symbol numbers. 7 ABBREVIATIONS A A or AUD A.E. AC ACC AFC AFT AGC ALC AM AMP ANT APC ASS'Y or AS AUTO AV or A/V : Audio : Audio Erase : Alternating current : Automatic Color Control : Automatic Frequency Control : Automatic Fine Tuning : Automatic Gain Control : Automatic Level Control : Amplitude Modulation : Amplifier : Antenna : Automatic phase control : Assembly : Automatic : Audio/Video B B BAL BGP BPF BW or B/W : Base, Burst : Balance : Burst Gate Pulse : Bandpass Filter : Black and White C C C Rotary C-Sync CAP CAR CATV CCD CFG CH CHAR CHROMA CLK CNR COMB COMP CONV CST CTL CUR CV : Capacitor, Chroma, Collector : Color Rotary : Composite Synchronization : Capstan : Carrier : Cable Television : Charge Coupled Devices : Capstan Frequency Generator : Channel : Character : Chrominance : Clock : Color Noise Reduction : Comb Filter : Comparator, Composite, Compensation : Converter : Cassette : Control : Current : Composite Video D D : Drum, Digital, Diode, Drain DC : Direct Current DD : DC-DC Convert DEEM or DEEMPH: Deemphasis DEMOD : Demodulator DET : Dectector DEV : Deviation DFG : Drum Frequency Generator 8 DOC DS dB : Dropout Compensator : Drain and Source : Decibel E ENVE : Envelope G GEN GND : Generator : Ground H H : High, Horizontal HA or HEAD AMP : Head Amplifier (PreAmp) HD : Horizontal Drive, Head HOR : Horizontal HZ : Hertz I I/O IC IF INS IR : Input/Output : Intergrated Circuit : Intermediate Frequency : Insertion : Infrar Red K KIL : Killer L L LIM LM LP LPF : Low, Left, Coil : Limit : Loading Motor : Long Play : Low Pass Filter M MAX MIN MIX MMV MOD M/T or MTR : Maximum : Minimum : Mixer, Mixing : Monostable Multivibrator : Modulation, Modulator : Motor N NC NC or NOICAN NL NR : None Connection : Noise Canceller : None linear : Noise Reduction O OSC OSD OSP OTR : Oscillator, Oscillation : On Screen Display : On Screen Program : One Touch Record P P-P PB PC PCB PG : Peak-to-Peak : Playback : Photo Coupler : Printed Circuit Board : Phase Generator PIC PIF PLL PS PWM PWR : Picture : Picture Intermediate Frequency : Phase Locked Loop : Phase Shift : Pulse Width Modulator : Power T TJ TP TR TRANS TRK TU : Test Jump : Test Pin : Transistor : Transformer : Tracking : Tuner Q Q QV : Transistor : Quasi Vertical U UHF : Ultra High Frequency V R R REC REF REG REMOCON REV REW RF ROT : Resistor, Right : Recording : Reference : Regulated, Regulator : Remote Control (Unit) : Reverse : Rewind : Radio Frequency : Rotary V V-SYNC VCA VCO VCR VD VERT VFD VGC VHF VR : Volt, Vertical : Vertical Synchronization : Voltage Controlled Adjustor : Voltage Controlled Oscillator : Video Cassette Recorder : Vertical Drive : Vertical : Vacuum Fluorescent Display : Voltage Gain Control : Very High Frequency : Variable Resistor or Volume S SEP SHARP SI or S IN SO or S OUT SP STB SVC SW or S/W SYNC SYSCON : Separation : Sharpness : Serial Input : Serial Output : Standard Play : Strobe : Service : Switch or Switching Pulse : Synchronization : System Control 9 W W W/D WF WHT : Watt : White and Dark : Wave Form : White X X-TAL : Crystal Y Y FM Y Y/C : Luminance FM Signal : Luminance/Chrominance OPERATION CONTROLS AND FUNCTION FRONT VIEW NOTE: Model-K884N-SJ, K884N-JJ, K884N-SG, K784N-SJ, K784N-JJ, K784N-SG, K884NY-SJ/M, K-884NZ-SJ/M, K884NZ-SG/M !@ # $ % ^ & * = POWER STOP/EJECT REC REW PLAY FF CH ) ( NOTE: Model-K804N-SJ ! @ # $ R VISS VIDEO INDEX SEARCH SYSTEM ) 10 ( % ^ & * ! POWER Button Press this button to turn the VCR on or off. When the VCR is turned off, the timer recording is automatically turned on if it has been programmed. When the VCR is turned on, the timer is automatically turned off. The VCR will stop and be turned off, if you press the POWER button during record, playback or fast forward operation. & PLAY/PAUSE Button Press this button to play the recorded material. Playback indicator appears in the multifunction display. This button is inactive when the VCR is in recording mode. Pauses the tape for stop-action viewing during playback by toggle this button. * FWD (Fast Forward) Button Press this button at stop position to wind the tape to forward direction. Press this button at playback mode for an access to a wanted program material visibly. When the picture reached to the point where you are looking for, press the PLAY button to resume normal playback. @ STOP/EJECT Button Stops the normal functions such as record, playback, rewind, fast-forward, or pause. Press when the VCR is stopped to eject the cassette. Press and hold STOP on the remote or STOP/EJECT on the VCR for approximately 3 seconds to cancel the Express Recording or the Timer Recording. ( Remote Sensor Receives signals from the remote control. Aim the remote at this sensor with no objects between them. #, $ CHANNEL Up or Down Button Selects next higher or lower channel in the VCR's channel memory. ) Multifunction Display This display is used as an indicator for Function indicator (PLAY, REC, F.FWD, REW, PAUSE), timer program indicator tape speed (SP, EP), present time of day, VCR/TV, Line mode (AUX), channel number, tape counter, clock. % RECORD Button Press the record button to start recording. REC is indicated in the multifunction display. Press this button (at least twice) to select the desired recording time 0:30 (30 minutes) to 4:00 (4 hours). In case of LED Display This display is used as an indicator for function indicator. (POWER, RECORD, Hi-Fi, VCR, TIMER) by using light emitting diode. ^ REWIND (Reverse Picture Search) Button Press this button at stop position to rewind the tape after either recording or playback is completed. Press rewind button at playback mode to reverse the scanning on the programmed program material visibly. When the picture reaches to the point where you are looking for press the PLAY button to resume normal playback. 11 REAR VIEW NOTE: Hi-Fi model. & ^ @ OUT IN ANT IN VIDEO L RF OUT AUDIO 3 CH. 4 R % $ ! # ! CH3 or CH4 Switch Switch to CH3 or CH4 whichever is not used in your area to view tape in play mode and to use your TV set as a monitor. % Audio Output Connector Permits audio connection of you VCR to a sound Equipment another VCR, or monitor. @ ANT. (Antenna) IN Connector Receives a signal from an antennna or cable system when attached. ^ Video Input Connector Receives video signal from a video camera, another VCR, or other video equipment. # RF OUT Connector Passes signal to TV the cable supplied. & Video Output Connector Permits video connection of your VCR to a monitor or another VCR. $ Audio Input Connector Receives audio signal for recording sound from a view camera, external sound equipment, or another VCR. 12 INSTRUMENT DISASSEMBLY Perform all disassembly procedures in the order presented. When reassembling, use the reverse procedure. Make sure that all leads/wiring are routed correctly when reassembling. Top Cover Removal (Fig. 1) Bottom Cover Removal (Fig. 3) 1. Remove three(3) screws Holding the top cover. 2. Carefully lift the back of top cover and slide it to the rear to remove it. 1. Remove the top cover and the front panel. 2. Remove two(2) screws. 3. Lift out the bottom cover in the direction of the arrow. Remove two screws Remove three screws. CH IN OUT Fig. 1 - Top Cover Removal Front Panel Removal (Fig. 2) 1. Continued from (Fig. 1). 2. Remove two(2) screws securing front panel & F/L bracket. 3. Release seven(7) tabs holding the front panel. (Release bottom tabs first) 4. Remove the F/L bracket. 5. Remove the front panel. Fig. 3 - Bottom Cover Removal F/L Door Removal (Fig. 4) 1. Open the F/L door 90 degrees. 2. Remove the F/L door in the direction of the arrow. Fig. 4 - F/L Door Removal Fig. 2 - Front Panel Removal 13 INSTRUMENT DISASSEMBLY (Continued) PCB Preamp Assembly Removal (Fig. 5) Main PCB Assembly Removal (Fig. 7) 1. Remove the top cover, the front panel and the bottom cover. 2. Disconnect the FPC (A). 3. Remove two(2) screws (B). 4. Remove the PCB Preamp assembly in the direction of the arrow. 1. Remove the top cover, the front panel, the bottom cover, the preamp assembly and the deck assembly. 2. Release two(2) tabs (A) and lift out the Main PCB in the direction of the arrow. REMOVE ONE SCREW(B) DISCONNECT THE FPC(A) REMOVE ONE SCREW(B) PCB PREAMP ASSEMBLY RELEASE ONE TAB(A) MAIN PCB Fig. 5 - PCB Preamp Assembly Removal RELEASE ONE TAB(A) Deck Assembly Removal (Fig. 6) 1. Remove the top cover, the front panel, the bottom cover and the preamp assembly. 2. Disconnect three(3) connectors (A) (B) (C). 3. Remove three(3) screws (D). 4. Pull out the Deck Assembly in the direction of the arrow. DISCONNECT CONNECTOR (B) DISCONNECT CONNECTOR (C) Fig. 7 - Main PCB Removal REMOVE THREE SCREWS (D) DISCONNECT CONNECTOR (A) Fig. 6 - DECK Assembly Removal 14 MECHANICAL DISASSEMBLY 0 ! 9 @ 8 7 6 # $ % 5 4 3 ^ 2 & * ( ) 1 Fig. 9 - Tape Transport Mechanism Identification (Top View) 1. Earth Bracket Ass’y 2. FE Head 3. S-Slant Pole Ass’y 4. Tension Lever Ass’y 5. Reel Table 6. Main Base Ass’y 7. S-Sub Brake Ass'y 8. S-Main Brake Ass'y 9. Idler Plate Total Ass’y 10. T-Main Brake Ass’y 11. T-Sub Brake Ass’y 12. Relay Lever 13. Capstan Motor 14. Pinch Lever Total Ass’y 15. L/C Bracket Total Ass'y 16. Cam Gear 17. AC Head Total Ass’y 18. T-Slant Pole Ass'y 19. Drum Total Ass’y 20. Head Cleaner Lever As (K884NZ-SJ/M, K884NZ-SG/M only) 15 MECHANICAL DISASSEMBLY (Continued) 0 E w “ W q ‘ + = Q Fig. 10 - Tape Transport Mechanism Identification (Bottom View) 20. Capstan Motor 21. F/L Rack 22. Connect Plate 23. Reel Belt 24. Reel Gear Total Ass'y 25. Record Safety Lever 26. Loading Lever L 27. Loading Lever R 28. Drum Total Ass'y 29. Loading Rack 16 MECHANICAL DISASSEMBLY (Continued) ! 1 ) @ # ( * & $ ^ % Fig. 11 - Front Loading Mechanism Identification (Top View) 1. Top Plate Ass'y 2. F/L Bracket R 3. Prism Link R 4. Release Lever 5. Loading Lever R 6. CST Holder Ass'y 7. Loading Shaft 8. Loading Lever L 9. Door Opener 10. Safety Lever 11. Safety Lever R 17 MECHANICAL DISASSEMBLY (Continued) 4. Remove one (1) screw holding the prism link R and remove the prism link R from the F/L bracket R (Fig. 14). Front Loading Mechanism Removal (Fig. 12) NOTE: The front loading mechanism must be in the eject position to remove it. 1. Remove two (2) screws holding the Front Loading Mechanism. 2. Lift the rear of the cassette loading mechanism (hole parts for screw) to separate it from the Main Base. Fig. 14 - F/L Brkt Disassembly 5. Remove one (1) screw holding the prism link L (Fig. 15). 6. Release hook B by pushing it in the direction of the arrow and remove the door opener (Fig. 15). 7. Press the linked section of the loading lever assembly in the direction of the arrow and remove the loading lever assembly (Fig. 16). Fig. 12- Front Loading Mechanism Removal Front Loading Mechanism Disassembly (Fig. 13~ 17) 1. Remove the front loading mechanism. 2. Remove one (1) screw holding the F/L bracket R and move the F/L bracket R in the direction of arrow to separate it from the top plate and the cassette holder assembly. 3. Remove the cassette holder assembly (Fig. 13). Fig. 15- Top Plate Disassembly 8. Remove the safety spring between the safety lever and the cassette holder (Fig. 16). 9. Remove the release spring between the relelase lever and the safety lever R (Fig. 16). Fig. 13 - Front loading mechanism disassembly 18 MECHANICAL DISASSEMBLY (Continued) ƒRScrews are different # % $ Fig. 16- Loading Lever Ass’y Disassembly NOTE: Reassemble the cassette loading mechanism using the reverse procedures. Confirm that the two (2) bosses on the left side of the cassette holder are inserted into the groove in the left side of the top plate. Insert the two (2) bosses on the right side into the F/L bracket R (Fig. 17). Fig. 18 - Replacement of the Drum Total Ass'y and Earth Brkt Ass'y Reel belt, Loading Rack, Loading Gers, and S/T Slant Pole Removal (Fig. 19, 20) 1. Turn the Deck Mechanism updide down and remove the reel belt. 2. Remove one (1) poly washer ! and remove the loading rack (2) by rotating it CCW. 3. Remove loading gear R # (black) and loading gear L $ (white). 4. Remove the S and T slant poles % and ^ by pulling them in the direction of the arrow. NOTE: • Take care not to get grease on the guide rollers. • When reinstalling, realign the gears as shown in Fig. 20. Fig. 17 - F/L Brkt R ! Replacement of the Drum Assembly/Earth Bracket (Fig. 18) 1. Remove three (3) screws (3). 2. Remove the earth bracket (5). 3. Carefully lift the drum assembly (4) from the deck mechanism taking care not to damage or touch the video heads. @ # $ NOTE: After reassembling the assembly, confirm that the tape runs smoothly and confirm all tape path adjustment procedures in the "Mechanical Adjustment" section of this service publication. ^ 19 % Fig. 19 - Reel belt, Loading Rack, Loading Gears, S/T slant pole Removal MECHANICAL DISASSEMBLY (Continued) Fig. 21-1- A/C Head Assembly Alignment L/C Bracket Assembly Removal (Fig. 22) 1. Remove one (1) screw ! from the L/C bracket assembly @ and remove the L/C bracket assembly @ from the deck mechanism (Fig. 22). Fig. 20- Loading Gears/Loading Rack Alignment A/C Head Assembly Removal (Fig. 21, 21-1) NOTE: When reassembling, refer to Fig. 23 for alignment instructions. 1. Remove one (1) nut hex from the A/C head assembly @ (Fig. 21). 2. Remove the A/C head assembly @ and remove the A/C head spring # from the A/C head assembly @. (Fig. 21-1). Replacement of Pinch Lever Total Assembly Removal (Fig. 22) NOTE: After reinstalling, perform all A/C Head adjustment procedures and all tape path alignment procedures in publication. 1. Remove one (1) washer #. 2. Unhook the pinch spring $ from the main base % and remove the pinch lever total assembly (. ! NOTE: Take care not to get grease or oil on the outside surface of the pinch roller ). ! @ @ # $ & ^ * % Fig. 21- A/C Head Assembly Removal Fig. 22- Replacement of L/C Bracket Total Assembly/Pinch Lever Total Assembly/Cam Gear/Relay Lever/F/L Rack 20 MECHANICAL DISASSEMBLY (Continued) @ ! # % & $ ^ * Fig. 23- L/C Bracket Assembly Alignment Cam Gear, and F/L Rack Removal (Fig. 22) 1. Remove the cam gear & from the deck mechanism. 2. Remove the relay lever ^ from the main base %. 3. Remove the F/L rack * from the deck mechanism. Fig. 25- Main Plate Removal NOTE: When reassembling, align the assembly as shown in Fig. 23 & 24. Tension Band Assembly Removal (Fig. 26, 27) 1. Remove the tension spring @ from the main base ! (Fig. 26). 2. Turn the deck mechanism upside down (Fig, 27). is facing down (Fig. 27). 3. Release the tab of the hook "A" and separate the tention band assembly (3) (Fig. 27). NOTE: • After reassembling, adjust the position of the tension pole as shown in Fig. 28. • Avoid getting grease or oil on the felt section of the band brake. # Fig. 24- Cam Gear/F/L Rack Alignment @ S/T Main & Sub Brakes Removal (Fig. 25) 1. Unhook the main brake spring ! from the T main brake lever #. 2. Disconnect the main brake lever assembly @ and T main brake lever # from the main base *. 3. Unhook the s sub brake spring $ from the main base and disconnect the s sub brake lever assembly % from the main base *. 4. Unhook the T sub brake spring ^ from the main base and disconnect the T sub brake lever assembly & from the main base *. ! Fig. 26- Tension Band Assembly Removal (I) 21 MECHANICAL DISASSEMBLY (Continued) FE Head Removal (Fig. 31) Remove one (1) screw (1) and lift the FE head (2) from the main base. ! @ Fig. 28- Tension Band Fig. 27- Tension Band Assembly Alignment Assembly Removal (II) With Main Base Capstan Motor Removal (Fig. 29) Remove three (3) screws and remove the capstan motor. Fig. 31- FE Head Removal Reel Gear Total Ass'y and Connect Plate Removal (Fig. 32) 1. Turn the deck mechanism upside down and remove one ! polywasher !. 2. Release the tab "B" of the main base and part the reel gear total ass'y @ from the main base. 3. Push the connect plate # to the left direction and separate it from the main base. NOTE: • When removing the connect plat with the the F/L rack installed, take care not to damage/bend the connect plate. • When assembling or disassembling, take care not to get oil or grease on the reel belt. Fig. 29- Capstan Motor Removal Idler Plate/Reel Table Removal (Fig. 30) 1. Remove one ! polywasher ! from rhe idler plate @ and remove the idier plate @ from the main base. 2. Remove the reel tables # and the two @ polysliders $ from the deck mechanism. ! # @ # ! $ @ Fig. 32- Reel gear total ass'y and Connect Plate Removal Fig. 30- Idler Hate/Reel Table Removal 22 Some disassembly is required to access the adjustment locations. Refer to the "Disassembly Selection" in this publication for disassembly instructions. Caution: Use an isolation transformer when servicing. Mechanical Checks/Gear Alignment (Fig. 1, 2, 3, 4, 5) When mechanical problems occur or when reassembling parts in this mechanism, be sure to confirm the following instructions to confirm the following: 1. Make sure that the datum hole of the cam gear "A" is aligned with the hole "B" in the main base in the EJECT mode (Fig. 1). Fig. 1 - Mechanical Checks/Cam Gear and F/L Alignment 2. Make sure that the part of the relay lever "A" which is assembled with CONNECT PLATE is fully rotated up to the left end of the hole "B" (Fig. 2). Fig. 2 - Mechanical Checks/Relay Lever and Cam Gear Alignment 23 3. There are two (2) triangular marks on the mode sense switch. When installing the L/C bracket assembly on the main base, confirm that the two (2) triangular marks are aligned with each other in the EJECT mode (Fig. 3). Fig. 3 - Mechanical Checks/Mode Sense S/W Alignment 4. Make sure that the boss "A" of the Pinch Lever Total Ass'y is positioned at the point "B" of the cam gear in EJECT mode (Fig. 4). Fig. 4 - Mechanical Checks/Pinch Lever and Cam Gear Alignment 24 5. Confirm that the triangular mark "A" on the Loading Gear L Ass'y is aligned with the notch "B" in the Loading Gear R Ass'y in EJECT mode (Fig. 5). 6. Make sure that the teeth of the Loading Rack are aligned with the those of the Loading Gear R so that the hole "C" of the Loading Rack aligns with the circular mark "D" on the Loading Gear R (Fig. 5). Fig. 5 - Mechanical Checks/Loading Loading Rack and Loading Gear Alignment 25 Back Tension Measurement/Adjustment (Fig. 6, 7) 1. Confirm that the position of the tension pole is correctly positioned. If not, refer to the "Tension Pole Position Adjustment Proccedures". 2. Play back cassette torque meter (play torque) for about 20 seconds (wait until the tape transporting system comes to be stable). 3. Measure the back tension by reading the spart of torque meter. The measured result must meet the specification (35-55 gr). 4. If the result is not within the specification, get rid of cassette torque meter from the mainbase and adjust the tension spring (If the measured result exceeds the specification, locate the spring on the hook "A". If the value dose not reach the specification, locate the spring on the hook "B".) and repeat the step 1 thru 3 of "Tension Pole Position Adjustment" (Fig. 7). NOTE: • It is recommended that the measurement should be repeated at least three times to guarantee an accurate reading. Fig. 6 - Back Tension Measurement/Adjustment 26 Operating the VCR Without a Cassette Tape 1. 2. 3. 4. Remove the cassette Loading Mechanism. By hand revolve the worm counterclockwise 7-8 times until the pole base loading process starts automatically. Then PLAY mode appears. If you want ANOTHER mode, Press the desired button. If the mechanism is in the desired mode, remove the Power. Tension Pole Position Adjustment 1. Make the mode PLAY without a cassette loaded. Refer to "Operating the VCR Without a Cassette Tape". 2. Confirm that the datum hole of the tension lever is coincident with that of the main base. 3. If the above confirmation is not satisfying, turn Band Brake Cap clockwise or counterclockwise until the two holes are coincident with each other. Fig. 7 - Tension Pole Position Adjustment 27 MECHANICAL ADJUSTMENTS (Continued) Tape Path Alignment Procedures The tape transporting system is precisely aligned at the factory and under the normal circumstances will not require adjustment. However, if noise appears in the playback picture, then either the tape damage occured or the tape path has been changed, and readjustment of the tape path is necessary. Use the following flow chart when Tape Path Alignment is necessary. ADJUSTMENT FLOW FOR THE TAPE TRANSPORTING SYSTEM 28 THE SCHEMATIC DIAGRAM OF TAPE TRANSPORTING SYSTEM % & $ * ( ^ # ! @ 2 ) 1 3 ¤ TENSION POLE ¤ŁS-GUIDE POST ¤ØFE HEAD ¤ŒS-GUIDE ROLLER ¤ºS-SLANT POLE ¤ DRUM ¤ T-SLANT POLE ¤ T-GUIDE ROLLER ¤ A/C HEAD ¤ T-GUIDE POST ¤æCAPSTAN SHAFT ¤ PINCH ROLLER ¤ VERTICAL POST Fig. 9 29 ADJUSTMENT PROCEDURES 3. Audio Azimuth Adjustment 1). Play back the Alignment Tape (SP mode) with the following signal. NTSC: 7KHz PAL: 6KHz 2). Observe the audio output signal appearing on the Oscilloscope. 3). Turn AC Head Azimuth Screw so that Maximum audio output signal is obtained. 1. Rough adjustment of S&T Guide Rollers When the parts shown in Fig. 9 are substituted, Tape Path can change. To prevent this, refer to the following instructions. 1). Play back a T-120 tape. 2). Confirm that the excessive tape wrinkle does not occur at each guide. 3). If tape wrinkle is observed at the guide rollers in Fig. 10, turn the S&T Guide Rollers for no wrinkle. 4. AC Head Height Adjustment 1). Play back a T-120 tape. 2). Confirm that the gap between the lower edge of the tape and the edge of the AC Head is 0.25 mm. 3).If the measure gap exceeds 0.25 mm, turn the AC Head Height Screw CCW. If not, turn it CW. Repeat this process until the measuring meets the specification. TAPE 0.2± 0.05 mm Fig. 10 Tilt Adjustment Fig. 12 AC Head Height Adjustment 2. Pre-adjustment of AC Head Ass'y 1). Tilt Adjustment a. Play back a T-120 tape and observe the tape running condition at the upper and lower Flanges of T-Guide Post Ass'y 1 in Fig. 9. b. Rotate the AC Head Tilt Screw until tape running condition is optimized (Fig. 10 & 11). 5. X-Axis Position Adjustment (Fig. 12 & 13) Test Points: Observe: Adjust: CTL Pulse Test Pin Envelope Test Pin Oscilloscope VR Control S/T Guide Rollers Path Adj. Fixture Path Adj. Fixture Path Adj. Fixture Transport Mech. ! 1). Connect the Path Adj. Fixture to PT01 on the Main circuit board. 2). Play back the Alignment Tape (color bar signal). 3). Connect the channel-1 scope probe to the CTL pulse test pin on the Path Adj. Fixture. 4). Connect the channel-2 scope probe to the envelope test pin on the Path Adj. Fixture. Externally trigger the scope using the SW pulse test pin on the Path. Adj. Fixture. 5). Adjust the VR Control on the Path Adj. Fixture to its center range position. 6). Using the Flat Blade Screwdriver, adjust the X-Axis Position by turning Adjust Boss (Fig. 11) to obtain the maximum envelope. ^ @ # $ % NOTE: Before performing this adjustment, be sure to remove locking paint applied to the Adjust Boss. Fig. 11 AC Head Ass'y Identification 30 7. Linearity Adjustment (Fig. 15) Test Points: Observe: Adjust: 6. Playback Phase Adjustment (Fig. 14) Observe: Adjust: PT01 Pin3 Video Out Jack Oscilloscope VR595 (PG Shifter) Path Adj. Fixture Path Adj. Fixture Path Adj. Fixture Transport Mech. 1). Connect the Path Adj. Fixture to PT01 on the Main circuit board. 2). Play back the Alignment tape (color bar signal). 3). Connect the channel-1 scope probe to the CTL pulse test pin on the Path Adj. Fixture. 4). Connect the channel-2 scope probe to the envelope test pin on the Path Adj. Fixture. Externally trigger the scope using the SW pulse test pin on the Path Adj. Fixture. 5). Adjust the VR Control on the Path Adj. Fixture so the envelope (FM) signal of the Aligment tape is maximum. 6). Adjust the S/T guide rollers so that the envelope (FM) signal waveform at the entrance and exit sides are as shown in Fig. 1 Fig. 13 X-Axis Position Adjustment Test Points: CTL Pulse Test Pin Envelope Test Pin Oscilloscope VR Control S/T Guide Rollers Main Rear Panel Main The Phase Generator (PG) Shifter determines the video head switching point during playback. Wrong adjustment of the PG shifter may cause the head switching noise in the picture and/or vertical jitter. 1). Play Back the Alignment Tape (color bar signal or monoscope signal). 2). Connect the channel-1 scope probe (1V/div.: 50psec/div.) to PT01 pin3. Trigger the scope on channel-1. 3). Connect the channel-2 scope prove (1V/div.) to the video out jack. 4). Set the scope to (–) slope an adjust the PG Shifter control (VR595) so that the trailing edge of the SW30Hz pulse is placed 6.5H±0.5H(horizontal) lines before the start of the vertical (horizontal) lines before the start of the vertical sync pulse. Fig. 15 Linearity Adjustment 8. Fine Adjustment of Envelopes at Drum Entrance/Exit Parts (Fig. 16 & 17) Test Points: Observe: Adjust: CTL Pulse Test Pin Envelope Test Pin Oscilloscope VR Control S/T Guide Rollers Path Adj. Fixture Path Adj. Fixture Path Adj. Fixture Transport Mech. 1).Connect the Path Adj. Fixture to PT01 on the Main circuit board. 2). Play back the alignment tape (color bar signal). 3). Connect the channel-1 scope probe to the CTL pulse test pin on the Path Adj. Fixture. 4). Connect the channel-2 scope probe to the envelope test pin on the Path Adj. Fixture. Externally trigger the scope using the SW pulse test pin on the Path Adj. Fixture. 5). Adjust the VR Control on the Path Adj. Fixture CCW and CW and confirm that the envelope waveform changes uniformly and remains flat throughout the overall range. 6). If the envelope is not uniform, slightly adjust the S/T Guide Rollers to correct the envelope. Fig. 14 Playback Phase Adjustment 31 9. Transitional Operation Confirmation (Review to Play) (Fig. 18) Test Points: Observe: Adjust: CTL Pulse Test Pin Envelope Test Pin Oscilloscope VR Control S/T Guide Rollers Path Adj. Fixture Path Adj. Fixture Path Adj. Fixture Transport Mech. 1).Connect the Path Adj. Fixture to PT01 on the Main circuit board. 2).Play back the Alignment Tape (color bar alignment). 3).Connect the channel-1 scope probe to the CTL pulse test pin on the Path Adj. Fixture. 4).Connect the channel-2 scope probe to the envelope test pin on the Path Adj. Fixture. Externally trigger the scope using the SW pulse test pin on the Path. Adj. Fixture. 5).Adjust the VR Control on the Path Adj. Fixture so that the envelope signal of the test tape is maximum. 6).Operate VCR in the Review mode for approximately 15 seconds and then change the mode to the Play mode. 7).Confirm that Within three (3) seconds the envelope waveform is recovered when the mode changes from Review to Play mode. 8).If the waveform is not recovered within the three (3) seconds when the mode changes from Review to Play mode, make sure that the tape runs smoothly at the lower Flange of T Guide Post. And slightly adjust the S/T Guide Rollers to amend the problem. Fig. 16 Fine Adjustments of Drum Entrance/Exit Envelopes Fig. 17 Fine Adjustment of Envelopes at Drum Entrance/Exit Parts Fig. 18 Transitional Operation confirmation (Review to Play) 32 10. Audio Output Confirmation (AC Head Tilt/Height Adjustment 12. X-Axis Adjustment (Fig. 19) Test Points: Test Points: Observe: Audio Out Oscilloscope Audio Out Jack Observe: Adjust: 1). Connect the oscilloscope to the audio output jack on VCR. 2). Playback the 400-1000Hz Audio Alignment Tape. 3).Confirm that the audio output signal is between –8dBm and –10dBm. 11. AC Head Azimuth Adjustment Audio Out Oscilloscope Path Adj. Fixture Path Adj. Fixture Path Adj. Fixture Transport Mech. 1).Connect the Path Adj. Fixture to PT01 on the Main circuit board. 2).Play back the Alignment Tape (Color Bar Signal). 3. Connect the channel-1 scope probe to the CTL pulse test pin on the Path Adj. Fixture. 4).Connect the channel-2 scope probe to the envelope test pin on the Path Adj. Fixture. Externally trigger the scope using the SW pulse test pin on the Path. Adj. Fixture. 5).Adjust the VR Control on the Path Adj. Fixture to its center range position. 6).Using a flat blade screwdriver, adjust the X-Axis Position Point by turning Adjust Boss so that the envelope waveform is as shown in Fig. 19 when the VR Control on the Path Adj. Fixture is turned fully CCW or CW. 7).After completing the adjustment procedure, perform the "Playback Phase Adjustment". NOTE: If the audio signal is not within the specification, readjust the A/C Head Tilt Screw and the A/C Head Height Nut slightly to maximize the audio output. Refer to Fig. 11 for adjustment screw location. Test Points: Observe: CTL Pulse Test Pin Envelope Test Pin Oscilloscope VR Control S/T Guide Rollers Audio Out Jack 1). Connect the oscilloscope to the audio output jack on VCR. 2). Play back the 400-1000Hz Audio Alignment Tape. 3).Adjust the AC Head Azimuth Screw for maximum audio output (specification = –12dBm to 14dBm). Refer to Fig. 11 for adjustment screw location. 4).After completing the adjustment procedure, reconfirm "Fine Adjustment of Envelopes at Drum Entrance/Exit Parts". Fig. 19 X-Axis Adjustment 33 AC001 (K884NZ-SJ/M, K884NZ-SG/M only) 34 35 36 37 38 CIRCUIT OPERATIONS 1. TIMER/SERVO/SYSCON CIRCUIT 1) PIN NAME & FUNCTION OF I-CHIP MICOM NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 NAME IIC CLK LMref(H) CAP PWM DRUM PWM S/REEL T/REEL SP (H) L P (H) SLP (H) SAP (L) REMOCON IN CAP. I. LIM CAP F/R SLOW STEP CTL C. ROTARY H/A/AMP ENVE COMP V. SWP Q-Vsync A. SWP RECORD CTL CAP FG DRUM PG DRUM FG PB CTL Vcc CAM D CAM C CAM B CAM A LM FWD LM RVS PB (L) REC (H) GND GND RESET Xin Xout CLK/SEL Vss Xcin Xcout EE (L) TRICK (H) A MUTE (H) STEREO (L) DRUM SELECT PORT P80/PBCTLmom P77 P76/PWM1 P75/PWMO P74/INT1 P73/INT0 P72/TB3IN P71/TB1IN P70/TB0IN P67/RTP15P/P-Hsy P66/RTP14/GEN P65/RTP13 P65/RTP12 P63/RTP11 P62/RTP10/EXOR1 P61/RTP9/EXOR0 P60/RTP8/EXORin P57/RTP7 P56/RTP6 P55/RTP5 P54/RTP4/TB2in P53/RTP3/CPFGin P52/RTP2/DRPGin P51/RTP1/DRFGin P50/RTP0/CTLin Vcc P47 P46 P45 P44 P43 P42 P41 P40 NUMA NUMB RESET Xin Xout CLKSEL Vss P140/Xcin Xcout P32 P31 P30 P21 P20 IN/OUT OUTPUT ASSIGNMENT HIFI, EEPROM IC CLOCK SERIAL OUTPUT OUTPUT INPUT INPUT OUTPUT OUTPUT OUTPUT INPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT INPUT INPUT INPUT OUTPUT CAPSTAN CONTROL PWM OUTPUT DRUM CONTROL PWM OUTPUT SUPLY REEL PULSE INPUT TAKE-UP REEL PULSE INPUT IN SP MODE, HIGH OUTPUT IN SLP MODE, HIGH OUTPUT IN SLP MODE, HIGH OUTPUT SAP DATA INPUT REMOCON DATA INPUT PORT CAPSTAN I. CONTROL CAPSTAN MOTOR FWD/RVS PULSE PULSE PULSE PULSE HIGH HIGH HIGH LOW PULSE LOW L/H COLOR ROTARY HEAD AMP SWITCHING ENVELOPE COMPARE DETECT INPUT VIDEO SWITCHING Q-Vsync OUTPUT AUDIO SWITCHING PULSE PULSE PULSE PULSE PULSE PULSE PULSE HIGH HIGH HIGH HIGH INPUT INPUT INPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT INPUT INPUT OUTPUT INPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT INPUT INPUT 39 CAPSTAN FG INPUT DRUM PG INPUT DRUM FG INPUT Vcc CAM DATA INPUT LOADING MOTOR FWD LOADING MOTOR RVS IN PLAYBACK MODE LOW OUTPUT IN REC MODE, HIGH OUTPUT GND GND RESET INPUT PORT 14.31MHZ OSC IN 14.31MHZ OSC OUT GND GND 32.768KHZ OSC IN 32.768KHZ OSC OUTPUT IN EE MODE LOW OUTPUT IN TRICK PLAY MODE, HIGH OUTPUT AUDIO MUTE HIGH OUTPUT STEREO DATA INPUT SYSTEM DRUM SELECT ACTIVE LOW LOW LOW PULSE PULSE PULSE L/H L/H LOW LOW LOW LOW HIGH HIGH LOW H/L NO 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 88 89 90 91 92 93 94 95 96 97 98 99 100 NAME KEYIN 1 KEYIN 2 SEG 0 SEG 1 SEG 2 SEG 3 SEG 4 SEG 5 SEG 6 SEG 7 SEG 8 SEG 9 SEG 10 SEG 11 SEG 12 SEG 13 SEG 14 SEG 15 GRID 0 GRID 1 GRID 2 GRID 3 GRID 4 GRID 5 N. C N. C Vee Vcc PLL/OSD DATA OSD STB PLL/OSD CLOCK PLL STB Vcc A/D Reference TV/LINE REC SAFETY END SENSOR START SENSOR HIFI (H) PATH PG DELAY AFT DC ENVE C. SYNC N. C REC (L) SAP/STEREO FORCED MONO (H) PIF ON (H) TV/VCR IIC DATA PORT P17 P16 P15 P14 P13 P12 P11 P10 P07 P06 P05 P04 P03 P02 P01 P00 P131 P130 P127 P126 P125 P124 P123 P122 P121 P120 Vee Vcc P113/TXD 0 P112/RXD 0 P111/CLK 0 P100/CTSO/RTS 0 Vcc Vref P101/PWM 2 P100/INT 2 P97/AN7/ADtrg P96/AN 6 P94/AN 4 P93/AN 3 P92/AN 2 P91/AN 1 P90/AN 01 CSYNCin P87/SOUT 1 P86/SIN 1 P85/SCLK 1 P84/SRDY 1 P83 P82/DRPGmom P81/DRFGmom IN/OUT INPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT ASSIGNMENT KEY DATA INPUT VFD SEGMENT OUTPUT PORT LOW VFD GRID OUTPUT PORT INPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT INPUT INPUT OUTPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT Vee Vcc PLL/OSD DATA OUTPUT OSD STROBE PLL/CLOCK OUTPUT PLL STROBE Vcc REFERENCE Vcc TV/LINE INPUT MODE SWITCHING REC SAFETY SW DATA IN TAPE END SENSOR DATA INPUT TAPE START SENSOR DATA INPUT HIFI HIGH INPUT USE FOR PATH ADJUST PG DELAY ADJUST AFT INPUT PORT VIDEO DC ENVE DETECT INPUT C. SYNC INPUT PORT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT IN/OUT IN REC MODE, LOW OUTPUT SAP/STREO SWITCHING PORT FORCED MONO HIGH OUTPUT IN TUNER MODE, HIGH OUTPUT TV/VCR MODE SWITCHING HIFI, EEPROM DATA IN/OUTPUT 40 ACTIVE HIGH HIGH HIGH HIGH SERIAL LOW SERIAL HIGH H/L LOW A/D A/D A/D A/D A/D A/D A/D PULSE LOW HIGH HIGH HIGH L/H SERIAL 2) FUNCTIONS BY BLOCK ! CTL Amplification & Waveshaping circuit CTL amplifier amplifies CTL signal read by CTL (–) Head, about 60dB regardless of modes. This amplified signal becomes a waveform in point A, and then output to CTL waveshaping through C508. Rec CTL signal is recorded to CTL (+) terminal by pin #21 during Rec mode. CTL wavesheping circuit which changes CTL wavefrom at “A” into square wave, is composed of schimitter trigger circuit using OP Amp IC and then input to 25pin. 41 @ START/END SENSOR CIRCUIT END SENSOR IR LED START SENSOR As it is difficult to deliver light due to direct insertion of IR LED & sensor on main PCB, it is delivered by reflection through prism. # Reel sensor circuit Reel sensor is directly inserted on main PCB and the transmission type is applied as below. Capstan motor speed in high-speed rewind mode is controlled by calculating the remain time of a tape with supply reel and take-up reel pulse. 3) F.L DISPLAY ! Grid Assignment 1G 2G 3G a f j h b a f g h c e d b c d 42 5G a g e 4G 6G a a 7G a 8G a @ Grid/Segment Map 1G 2G 3G 4G 5G 6G 7G 8G P1 a a a a a a a P2 b b b b b b b P3 c c c c c c c P4 d d d d d d d P5 e e e e e e e P6 f f f f f f f P7 g g g g g g g P8 m – – P9 h – – – – P10 j – – – – P11 – – – – – – P12 – – – – – – – 4) FL display Bias Circuit + -24V F+ + D717 3.9V FR703 30K 43 2. PIF & INPUT SELECTOR 1) Outline The circuit to tune proper signal of broadcasted radio frequency (RF: VHF, UHF) and to demodulate it to baseband signal for record. It is composed of two parts, TMI and Input selector. The former makes RF signal changed to composite video signal and audio signal, and the latter selects line input and RF input. * Refer to "PIF & INPUT SELECTOR BLOCK DIAGRAM" and "PIF & INPUT SELECTOR SCHEMATIC" 2) The name and function of pins on TMI (Tuner/Modulator/IF) Section NO. Pin Name 1 AUDIO INPUT 2 CH-SW 3 MB 4 CONTROL 5 VIDEO INPUT 6 BP TUNER PLL IC +B (+5V) 7 BT TUNER +B (+32V) 8 PLL CLOCK PLL CLOCK SIGNAL INPUT 9 PLL DATA PLL DATA SIGNAL INPUT 10 PLL ENABLE 11 N.C N.C 12 N.C N.C (IF OUTPUT TEST POINT) 13 +B IF CIRCUIT +B (+9V) 14 AUDIO OUTPUT 15 GND GND 16 AFT AFT DETECT OUTPUT 17 N.C N.C (IF AGC MONITOR POINT) 18 VIDEO OUTPUT RF MODULATOR TUNER IF (INTER MEDIATE FREQUENCY) Function MODULATOR AUDIO INPUT RF OUTPUT CHANNEL SWITCH (3CH: OPEN, 4CH: GND) MODULATOR +B (+5V) MODULATOR OUTPUT SW (ON: VCR MODE, OFF: TV MODE) MODULATOR VIDEO INPUT PLL ENABLE SIGNAL INPUT AUDIO SIGNAL OUTPUT COMPOSITE VIDEO OUTPUT * REFER TO TMI BLOCK DIAGRAM 3) The name and function of Pins on Switching IC (MC14053B) 2/4 Head Only NO Name Function NO Name Function 1 INPUT Y1 LINE VIDEO 9 CONTROL X TUNER ‘L’ 2 INPUT Y2 N.C 10 CONTROL Y LINE ‘H’ 3 INPUT X1 LINE AUDIO 11 CONTROL Z 4 OUTPUT X AUDIO OUTPUT 12 INPUT Z2 TUNER VIDEO 5 INPUT X2 TUNER AUDIO 13 INPUT Z1 LINE VIDEO 6 INHIBIT INHIBIT 14 OUTPUT Z VIDEO OUTPUT 7 GND GND 15 OUTPUT Y LINE VIDEO 8 GND GND 16 VCC 9V 44 MODULATOR / TUNER / DEMODULATOR BLOCK DIAGRAM (MODULATOR SECTION) (TUNER SECTION) (DEMODULATOR SECTION) (IF SECTION) ANT IN off through Switch VHF RF Amp Mixer IC IF Amp SAW Filter Video Detector RF Carrier Oscillator 45 Video Modulator UHF RF Amp UHF Mixer VHF OSC FM Detector SIF Filter AFT FM Modulator ANT OUT UHF OSC PLL IC AGC 4.5MHz Tank TV ! AUDIO IN @ % CH SW VIDEO IN * CLOCK ( ) DATA ENABLE 4 5 AUDIO OUT AFT OUT 8 VIDEO OUT 4) The name and function of Pins of Switching IC (LA7152); Hi-Fi Only Pin No. Name Function 1 INPUT 1 N.C 2 CONTROL 1 GND 3 INPUT 2 4 CONTROL 2 5 GND 6 INPUT 3 7 MUTE 8 OUTPUT 9 Vcc Tuner INPUT PIN TUNER/LINE SELECT, TUNER 'H' GND LINE INPUT PIN N.C VIDEO OUTPUT PIN Vcc 5V 5) The name and function of Pin on MPX module (Hi-Fi Only) Pin No. Name Function 1 Vcc 2 L+R OUT 3 L OUT Left side line out pin 4 R OUT Right side line out pin 5 MUTE Suppress the output of Pins 2, 3 and 4. Operates at H level (2.0 to Vcc) 6 F SAP Mode control switch, connects to GND At L (GND), SAP discrimination automatic selection mode 7 FORCED 8 MS 0 Mode control switch M0 H M1 L L OUT L+R R OUT L+R 9 MS 1 Mode control switch L H L R 10 SAP IND 11 ST IND When a stereo braodcast signal is detected, the stereo indicator is driven. The maximum drive current at open collector output is 25mA. 12 MPX IN Composite signal is applied to this pin. Standard input signal level at monaural mode (400Hz) is 0.7Vp-p (247mV rms, –9.9dBm). 13 GND Connects to +9V L+R output pin with de-emphasis characteristics Selection of monural and stereo operations When a SAP broadcast signal is detected, the SAP indicator is driven. The maximum drive current at open collector output is 25mA. Connects to GND 46 6) Operation When the RF signal received by antenna is input to TMI Antenna Input and user selects a channel, the CH control data (clock, data, enable) memorized in a MI-COM is output. The data runs PLL IC of TMI tuner part and outputs the selected channel to IF module. The input signal in IF module is demodulated to video signal on video detector part through IF amp and saw filter, and is output through 4.5MHz trap circuit. The demodulated signal is input in FM detector circuit through 4.5MHz BPF circuit, and is demodulated to audio signal on FM detector circuit, and is finally output. During the above process, AFT voltage is input in a MI-COM which detects AFT (–) in 1.875V or less, or AFT (+) in 2.812V or more and the best point of the tuning is got. In case of Hi-Fi model, video signal out of TMI, is input to pin 3 of SW IC, where as video signal from input jack is input to pin 6. In both cases, signal is selected by tuner/line selection signal input to pin 4. Every signal selected by SW IC, is output to pin 8 and then input to video part. Audio signal out of TMI is input pin 12 of MPX module (SBX1837) through variable registor for stereo separation adjustment. MPX module makes stereo and sap signal separatedly and then they one input to MATRIX circuit through demodulation circuit MATRIX circuit controls L out (pin 3) or R out (pin 4) by stereo/sap control signal input to pin 9,10 of MPX module, and makes them input to audio part. In case of mono model, video signal output of TMI is input to Pin 12 of SW IC, where as video signal from input jack is input to Pin 1 of SW IC, and Audio signal output of TMI is input to Pin 5 of SW IC, where as audio signal from input jack is input to Pin 3 of SW IC. In both case, video & audio signal is selected by tuner/line selection signal that input to Pin 9, 10, 11. Video signal selected by SW IC is output to Pin 14 and then input to video part. Audio signal selected by SW IC is output to Pin 4 and then input to audio part. 7) The operation of AFT Sync search checks whether there is sync or not, and the search starts at center frequency. Tuning frequency is increased by 0.5MHz up to +2MHz and decreased by 0.5MHz upto -2MHz from center frequency. If sync is detected within this range, fo ±2MHz, window search at a detected point starts. If not, the first fo data is output as it is. AFT window search decreases/increases PLL data by 62.5 KHz upto maximum ±2MHz (32 steps). i) The first data is within AFT window ii) The first data is under AFT window iii) The first data is over AFT window Refer to "NEXT PAGE DIAGRAM" Sync search should be carried out in advance in order to get AFT voltage. If a channel is selected by user, channel data memorized in a MI-COM are output to PLL IC. The PLL IC sends the fvco (local oscillation frequency) of the equivalent channel to tuner IC, and the MI-COM check whether there is sync or not 150ms after the data output. If the sync is "low", window search is worked, and if it is "high", sync search is done. fo –2M fo iii) fo +2M AFT+ (AFT+) 2.81V i) (AFT–) 1.88V AFT– ii) i) fo' ii) fo" iii) 47 8) The operation of MPX IC (SBX 1837) Hi-Fi Only ! L + R (MAIN) MPX signal is input from Pin 39 (COMP IN), and SAP and TELEMETRY signals are suppressed by stereo LPF. Then, pilot cancel is carried out. Finally L-R and SAP signals are eliminated by MAIN LPF and frequency characteristics are rendered flat by de-emphasis to be input to the matrix. @ L – R (SUB) Up to pilot cancel, the course is the same as for L+R signal. As L–R signal is the amplitude modulation of the double side band quiescent carrier (DSB-AM modulation), there is no carrier signal. To this effect the carrier signal (dummy sine wave) is played back using the pilot signal. As a result L–R signal is demodulated. Finally high band residual components are removed by means of SUB LPF and L–R signal is input to dbx-TV block through NRSW circuit. # SAP As shown in Fig. 1 SAP is an FM signal with a 5fH carrier. First SAP signal alone is extracted using SAP BPF. This is FM detected. Finally high band residual components are removed by means of SAP LPF, frequency characteristics are rendered flat and SAP is input to dbx-TV block through NRSW circuit. $ Mode discrimination Stereo discrimination is executed through the detection of the pilot signal amplitude SAP discrimination is executed by means of the 5fH carrier and noise detection around 20KHz after FM detection. % dbx-TV block SAP and L–R signals input to Pin 24 (ST IN) and Pin 21 (SAP IN) respectively, are selected by means of mode control inside NRSW circuit, and only one of the 2 is input to dbx-TV block. The input signal of this block passes through the fixed de-emphasis circuit and added to the variable de-emphasis circuit. This output passes through the external capacitance to be added to VCA (Voltage Control Amplifier). VCA output is current-voltage conversed by means of an operational amplifier and at the end input to the matrix. The variable de-emphasis circuit transfer function and VCA gain are controlled by the effective value detection circuit. Their respective effective value detection circuits detect the effective value of signals that have provided the specified weighting through a filter, to obtain the control signal. Refer to "NEXT PAGE Fig. 1, 2, 3" PEAK DEV KHZ AM-DSB-SC 50 L-R dbx-TV NR 25 L+R 50-15KHZ 15 PILOT 25 50 SAP dbx-TV-NR FM 10KHz 50-10KHz 5 TELEMETRY FM3KHz 3 f fH 2fH 3fH 4fH 5fH 6fH 6.5fH fH=15.734KHz Fig. 1. Base Band Spectrum 48 PLL (VCO) 8fH ST.LED DRIVE MODE CONTROL MAIN LPF DE EM (MAIN OUT) 2fH 0˚ fH 90˚ PILOT DET fH 0˚ (COMP IN) STEREO LPT PILOT CANCEL 39 36 L-R (DSB) DET SUB LPF (SBU OUT) MATRIX (L-OUT) 35 (ST IN) + L–R RV4 24 C5 SAP (FM) DET INJ LOCK 23 C4 L+R SAP BPF (MAIN IN) + 17 NR SW A dbx-TV BLOCK SAP LPF (SAP OUT) B 18 6 (S-OUT) R2 19 (SAP IN) + 21 SAP DET C2 R3 SAP LED DRIVE MODE CONTROL MODE CONTROL Fig. 2 Block Diagram (Refer to Fig. 3 for the dbx-TV Block) 24 NR SW A FIXED VARIABLE DEEMPHASIS DEEMPHASIS C9 (VCA IN) + VCA 28 29 21 (R-OUT) (VE OUT) B TO MATRIX HPF RMS DET LPF LPF RMS DET * The pin numbers indicate the number of ICs. Fig. 3 dbx-TV Block 49 3. VIDEO & AUDIO CIRCUIT 1) Video circuit ! EEmode 1.0V Vp-p video signal out of jack or TMI (Tuner, modulator, If) is input to SW IC151. One of them is selected and output to Pin 14 and them input to Pin 42 of IC301 (LA71004) for video signal process. This signal is amplified 6dB through sync and peak AGC (Auto Gain Control) and 2Vp-p signal is output Pin 39 through QV/QH Insert circuit. It is also output to Pin 5 of TMI and line jack. @ REC mode A. Luminance Signal Processing The signal input by pin 42 of IC301 is input to AGC AMP and controls sync level. And then, it is input to first LPF (Fc=6MHz) with limiting its band. The signal out of the first LPF is separated into luminance and color signal by comb filter. The separated luminance signal is passed through 3M LPF and pin 29 and buffer, and is input to pin 30. The level is clamped in clamp circuit, which fixes sync to a specific level in order to prevent drift of FM frequency. The edge of the clamped signal is emphasized by Detail Enhancer. The emphasized signal is supplied to Non-Linear Emphasis circuit for improving S/N. Non-Linean Emphasis circuit adjusts amount of emphasis, that is, makes it smaller in high frequency and vice versa in low frequency. Main Emphasis emphasizes the high frequency of the adjusted signal again. W/D clip is conducted in order to prevent undershoot and overshoot which are occurred during the above emphasizing process. The luminance signal modulated by FM modulator is passed through REC-EQ and then output to pin 14 and then is input to pin 11 of ICA01. ICA01 makes the luminance signal mixed with the down-converted 629KHz color signal input through pin 10, and also makes them amplified. Then it supplies the signal through pin 17 in SP or pin 18 in SLP, into head. Finally the signal comes to be recorded on a tape. B. Color Signal Processing The video signal input by pin 42 of IC301 passes through AGC AMP and 6MHz LPF. Color signal and Y signal are separated by COMB FILTER and the color signal only passes through 3.58 BPF. ACC AMP automatically controls burst level. After Burst Emphasis boosts burst signal 6dB, 3.58MHz carrier is input to main conventer and is mixed with 4.21MHz carrier out of subconverter. The output is 4.21±3.58MHz. The down converted 629KHz color signal, difference between the two frequencies, passes through 1.3MHz LPF, is output by pin 11 of IC301, is input to pin 10 of ICA01, and is mixed with FM modulated luminance signal input by pin 11. It is supplied to head and is recorded on a tape. # PB mode A. Luminance Signal Processing The recorded video signal picked up by head, is amplified 60dB by ICA01. The amplified FM signal is output through pin 10 of ICA01 and input to pin 15 of IC301. FM EQ and 629KHz trap of IC301 eliminates colors and passes only Y signal, which is output to pin 18 and 20, and is input to pin 22 after phase compensation. After FM AGC automatically controls playback output tolerence of CH1 and CH2, it is sent to double limitter circuit which removes AM noise and prevents overmodulation and lets the signal input to FM DEMOD which changes FM signal in record mode to the video signal. When it is recorded in main deemphasis through SUB LPF the boosted high frequency is deemphasized, passed through pin 29 and buffer, and input to pin 30. After 3MHz LPF's elminating demoduation noise during the above processes, it is input to YNR circuit. The signal goes to CCD IC302 through pin 34, becomes 1H-delayed there, and then returns to YNR circuit through pin 32. The 1H-delayed signal is mixed with signals inside of YNR, and as the result noise is eliminated. Non-Linear Deemphasis plays a role quite opposed to Non-Linear Emphasis in record mode, that is, it deemphasized the high frequency level emphasized by Non-Linear Emphasis. Double Noise Canceller reduces minute noise of video signal. After passing through picture control block, it is mixed with color signal. The mixed signal are output through pin 39, input to pin 18 of ICS01 output through pin 16, and finally supplied to both line jack and pin 5 of TMI. 50 B. Color Signal Processing The FM signal input to pin 11 of IC301, which is originally come from pin 10 of ICA01, passes through 1.3MHz LPF to pass only 629KHz color signal down-converted in record mode. ACC (Automatic Color Control) AMP stabilized the color signal. The stabilized signal is input to main converter and mixed with the 4.21MHz signal come from sub-converter. Its output is 4.21MHz±629KHz. The mixed signal is input to 3.58 BPF in order to pass 3.58MHz color signal only. In Comb Filter, the signal 1H-delayed by CCD IC is added to the original video signal. During this process, crosstalk between adjacent tracks is eliminated. The signal out of comb filter is input to Burst Deemphasis which reduces the 6dB boosted burst level (in record mode). The reduced signal is mixed with luminance signal, and the mixed signal is output to pin 39 of IC301 through Video Amp. EE MODE PROCESS IC151 IC301 LINE JACK 6 INPUT SELECT 8 31 AGC AMP VIDEO AMP 3 18 TMI 18 VIDEO OUT QV/QH INSERT 28 OSD LINE JACK 16 5 ICS01 51 TMI REC LUMINANCE PROCESS IC151 LINE JACK IC301 INPUT SELECT 6 8 31 AGC AMP 6M LPF 3 COMB FILTER YNR 18 TMI 3M LPF 2 34 W/D CLIP DETAIL ENHANCER MAIN EMPH CLAMP FM MODULATOR 3 BUFFER 2HD * Y-FM OUT NL EMPH IC A01 (PRE AMP) REC EQ 11 Buf CHROMA 10 Buf AGC AMP SP 17 EP 18 HEAD IC A01 REC COLOR PROCESS IC151 LINE JACK IC301 INPUT SELECT 6 8 31 AGC AMP 6M LPF 3 COMB FILTER 18 TMI 3.58 BPF 1.3M LPF ACC AMP COLOR KILLER BURST EMPHASIS 2HD 7 14 10 Buf MAIN CONVERTER AGC AMP SP 17 HEAD 11 LUMINANCE 52 Buf EP IC A01 18 PB LUMINANCE PROCESS IC301 ICA01 SP HEAD EQ AMP 10 EP 14 36 PHASE COMP FM EQ 35 2HD 7 FM AGC DOUBLE LIMITTER FM DEMOD SUB LPF IC302 2 MAIN DEEMPHASIS 3 BUFFER 3M LPF 11 YNR CCD 9 NONLINEAR DEEMPHASIS DOUBLE NOISE CANCELLER PICTURE CONTROL Y/C MIX QV/QH INSERT LINE JACK VIDEO AMP 28 18 16 OSD TMI 5 IC S01 PB COLOR PROCESS IC A01 HEAD SP IC 301 10 14 EP 1.3MHz LPF ACC AMP 2HD 7 11 MAIN CONVERTER 3.5MHz BPF COMB FILTER BURST DEEMPHASIS Y/C MIX 9 CCD IC 302 QV/QH INSERT LINE JACK VIDEO AMP 28 18 OSD 16 5 IC S01 53 TMI OSD IC PIN NAME & FUNCTION Pin Functions Pin No Symbol Function 1 Vss 2 XtalIN1 3 XtalOUT1 4 HSYNC OUT 5 XtalIN2 6 XtalOUT2 7 VSYNC OUT 8 CS Enable input 9 SIN Data input 10 SCLK Clock input 11 SECAM SECAM mode switch input/output (command switch) 12 525/625 525/625 switch input/output (command switch) 13 NTSC/PAL 14 3.58/4.43 15 AST 16 CV OUT 17 VDD2 Power supply connection 18 CVIN Video signal input 19 CVCR Video signal input 20 SYNC IN 21 SEPC 22 VSS 23 PD OUT 24 AMP IN 25 AMP OUT 26 FC 27 VCO IN 28 VCO OUT 29 SYNC DET 30 VDD1 Ground Crystal oscillator connection Horizontal synchronization output Crystal oscillator connection Vertical synchronization output NTSC/PAL switch input/output (command switch) 3.58/4.43 switch input/output (command switch) Reset input Video signal output Sync separator circuit input Sync separator circuit Ground Control voltage output AFC filter connection Control voltage input LC oscillator connection External synchronization signal detection output Power supply connection 54 2) Audio circuit 1) Outline This Audio Circuit use LA71004M A/V one chip IC of Sanyo's. The major feature of this IC is that has a Recording Bias current autocontrol circuit. So it is controlled by circuit automatically to keep consistent Recording current regardless change of head impedance. Prior IC is used variable resistor to control Recording current passively. But, variation range of HEAD Impedance has to be limited because of this auto-control circuit. • R/P HEAD = 58 KOHM ± 15% (f = 70KHz) • A/E HEAD = 34 OHM ± 20% (f = 70KHz) ¢¡ Serial Type = 180 OHM ± 20% (f = 70KHz) ¢¡ Parallel Type • FE HEAD = 80 OHM ± 15% (f = 70KHz) It can be devided a parallel and a serial circuit by form of connection of AE Head & FE Head. In case of D/W, we adopt a serial-type circuit. 2) Name and operation of pins in audio IC ! Features i) 1 chip type including PB amp, Line Amp, REC amp, ALC circuit, EQ switch Auto REC bias circuit. ii) It is equipped with EQ switch which operates in SP/LP/EP modes respectively. iii) ALC level is fixed on-6dBv. @ Function Pin No Name Function 1 Auto-Bias-IN 2 EQ-SW2 3 Auto-Bias-OUT 4 Auto-Bias 5 EQ-IN 6 EQ-NFB Negative Feedback of PB Amp 7 EQ-SW1 Playback equalizer switch in SP mode SW ON 8 EQ-OUT Playback Amp out 9 Line-BP-IN 54 Mute ON/OFF 55 PB/EE 56 Audio REC/EE/PB REC/EE control 57 Line IN Line/Tuner input 58 ALC-DET Port for ALC filter (setup attact or recovery time) 59 Line OUT Line Amp out 60 REC IN 61 Vcc 62 Vref Filter 63 GND 64 REC-OUT 320±10mVrms Input for auto-bias Capacitor switch for head resonance in LP or EP SW ON DC control voltage for auto-bias Auto-Bias Line input, Input impedance: 120kΩ Line Amp input of playback Amp out Mute control PB/EE mode control Input to REC Amp Vcc Vref filter (Ripple filter) GND Recording Amp out 55 3) Control Mode Specification ! Mute control (pin 54) Control Port Mute Mode Function Line SW H Mute open L Except for Mute close H: 1.8~5.0V, L: 0.0~1.2V @ PB/EE control (pin 55) Control Port PB/EE Mode H PB L EE H: 3.3~5.0V, L: 0.0~2.7V # REC/EE control (pin 56) Control Port REC/EE Mode H REC L EE H: 1.8~5.0V, L: 0.0~1.2V 4) Operational Mode ! EE mode The audio signal devided by R219 and R220, is input to pin 57 of IC and then output to pin 59 through ALC circuit and Line Amp. The signal passes C203 and devision circuit (R202, R203), and is input to REC Amp, and output to Line out too. @ ALC ALC point is fixed to –6dBv output inside of circuit, and ALC time can be adjusted by R201 and C202. # PB mode The signal read by audio head, is input to pin 5 through high frequency peaking circuit composed of R211 and C201 (EQ: C201+C207). The input signal is finally output to pin 59 through EQ Amp and Line Amp. Fig. 1 PB mode circuit 56 $ Rec Mode ¤˝When Rec "H" signal is applied, Audio Head (Rec) point will be opened (EE & PB: GND) and coil will be oscillated by switching circuit for High voltage and then starting rec. mode. ¤˛Electronic potential difference between Vcc (5V) and pin #3 has to be in 2.0-4.3V to coil oscillate. In other words, Voltage of pin #3 has to be in 0.7~3.0V p-p. Specially if Head impedance of R/P and FE is center level, the voltage of Pin #3 has to be 1.85Vp-p consistantly. Pin #3 might be over control range 0.7~3.0Vp-p when Head impedance is either max. or min. level unless Pin #3 is 1.85Vp-p. * Head Impedance Variation Owing to the Variation of Pin port 3 Voltage. R/P 67K OHM (+15%) 58K OHM (CENTER) 49K OHM (–15%) 92 OHM (+15%) 1.6Vp-p 1.9Vp-p 2.3Vp-p 80 OHM (CENTER) 1.4Vp-p 1.8Vp-p 2.1Vp-p 68 OHM (–15%) 1.1Vp-p 1.5vp-p 1.9Vp-p FE As you see from above chart, the voltage of pin # 3 gose up if impedance of FE HEAD is higher and higer, Impedance of R/P HEAD is lower & lower. DC voltage of Pin #3 includes AC signal components, this means that Auto Bias is operated. If it does not include AC signal components, means that Auto Bais is not operated. And, pin # 4 is on/off output port of BIAS control TR (Q205) which sticks in outside. During Rec. mode VBE (0.7~0.8V) is output and EE & PB mode the voltage is 0. ¤ˇAudio signal out of pin # 64 through Rec AMP is mixed with Bias signal of 70 KHz components and then record in Head. And, This signal input to inside of IC, when has 60KHz HPF so filtering Audio signal and pass only 70KHz components, through Pin # 1. Then it is compared by comparator (Standard Voltage is 320 mVrms). If it is bigger or smaller than standard Voltage, the comparator Changes the voltage of Pin #3. So that, the BIAS signal which input to pin # 1 is always 320 mVrms. Bias signal has a tolerane ±10% (288-352mVrms) ¤—Recording current is decided by BIAS signal of 320mVrms and resistance amount between pin # 64 and 1. * The way of recording current estimation BIAS = 320mVrms ¡ (Resistance between Pin 64 and Pin 1) ex) 320mV ¡ 1.3K OHM = 246µA In this case, G-level resistor, which has less error has to be used. Recording current can be controlled by resistance amount. But if you use too much or too little resistane, it could be cause of bias signal defection. Usually, the resistance amount between pin # 64 and 1 has to be in 1.0~2.2K OHM * The variation owing to the variation of resistance between pin 64 and pin 1. Resistance between Pin 64 and Pin 1. 1.0K OHM 1.3K OHM 1.5K OHM 1.8K OHM 2.2K OHM BIAS signal (mVrms) 316 318 312 315 310 Voltage of Pin 3 (V) 1.18 1.82 2.18 2.60 2.86 Rec. current (µA) 310 243 211 181 148 As you see above chart, It is easy to find that the BIAS signal always in a tolerane range regardless of resistance Amt. And the Change of Recording current is proportional to resistance Amt when a resistance Amt is changed, The voltage of pin #3 is also changed, you can controll to make 1.85 Vp-p using R 207 and R208. The resistance is lower & lower, the voltage of pin #3 will gose up. 57 ¤ In case of this IC, Peaking the high band frequency inside of IC itself without Peaking Coil using reactance of R/P Head. This is a different to prior Audio circuit. So, to adjust frequency characteristics, in this circuit, we are using R223 & C222. Fig. 2 REC mode circuit 58 4. HI-FI AUDIO CIRCUIT 1) How to make TA1246F fo adjustment-free In TA1246F, Zener Zap (the way to destruct Zener Diode) is used for making FM modulation fo adjustment-free. As it is basically similar to OTP (One Time Memory), fo of the IC is already set by IC makers so its adjustment is not required. For your reference, how to adjust fo is explained as below; (How to adjust Zener Zap fo) VCO Lch : 8bit Rch : 8bit Clock Data Bus Control Regulation ZAPI Rec FM Out Adj. Variable by Bus ZAP pulse IN Fig. 1 VCO Clock Data Bus Fixed Control Rec FM Out Adj. Constant Data cannot be inputed Fig. 2 ! Figure 1 shows VCO (Voltage Control Oscillation) adjustment circuit. In case of the IC without setting, i.e, Zener Zap is not conducted, its fo can be adjusted by Bus Data. In TA1246F, 255 per channel can be adjusted by Sub Add No. 5 and 6 step by step. @ After fo adjustment, input ZAP pulse adjusts Data. (Zener Zap) # One Zener Zap is completed, the adjusted fo will be kept without extra input of Bus Data. $ ZAP pulse In is usually grounded as shown the above Figure 2. 59 2) Operation of PNR Circuit ! The role & effect of PNR PNR (Peak Noise Reduction) is the way to reduce noise while recording and playing back VHS Hi-Fi audio. PNR circuit reduces signal half in Record mode and magnifies it double in Playback mode. As the result, noise occurred in Playback mode (due to tape or head) can be automatically reduced together, and both input and output can get same Dynamic Range. @ Basic operation of PNR circuit Figure 3 showns basic Block Diagram, VHS NR (Noise Reduction) spec. IN + _ Rec FM Emphasis T3 PB T1 PB Out Welghting VCA NR Emphasis T1 T4 T4 T2 Peak Det. T2 Rec Out NR Emphasis Time Const. T1=240us, T2=56us Welghting Time Const. T1=240us, T2=24us FM Emphsis Time Const. T1=56us, T2=20us T2 Fig. 3 As VHS Hi-Fi uses FM modulation, triangle noise happens while demodulating. This noise can be improved by Emphasis same as FM broadcasting audio. There are two kinds of Emphasis, NR Emphasis and FM Emphasis. High frequency is emphasized (Pre-Emphasis) in Record mode, and it is de-emphasized (De-Emphasis) in Playback mode. S/N can be improved by these forementioned ways. If high frequency with high signal level is emphasized, signal status will get worse due to over-modulation. To prevent this kind of PNR operation failure, Weighting characteristics is applied to front part of Peak Detect. As the result, NR effect can be reduced and Dynamic Range of high frequency can be protected. 60 # TA1246F PNR system It is possible to make the below system because TA1246F can have same VHS Hi-Fi characteristics even with less parts and less constants. • Playback and recording uses same circuit, which is located in feedback loop of MOS (Main OP Amp). The characteristics of Emphasis and De-Emphasis can be acquired by controlling the feedback loop. So playback of self-record tape has good performance. • The characteristcs mixed with FM Emphasis, NR Emphasis and Weighting can be shown by De-Emphasis and Weighting which are different from the spec generally used so far. Hence, we can meet VHS spec even with less parts and less constants. • Weighting characteristics is applied to rear part of PNR in Record mode and to front part in Playback mode, and NR (Noise Reduction) can affect 20KHz LPF, and Dynamic Range can be protected. Pin 30 PNR Monitor IN + MOA – 20kHz LPF 20k Rec Out T4 NR DeEmph. CCA T1 Peak Det. T3 T4 sub DeEmph. Weighting 5.6k 22k 2k Pin 3/9 T2 Vref 18k T1 Pin 8/32 Pin 6/34 10µ 10µ 0.01µ Pin 7/33 DeEmphasis Time Const. T1=240us, T4=20us Weighting Time Const. T1=240us, T2=56us Sub DeEmphsis Time Const. (Bulit in) T3=24us, T4=20us Fig. 4 Block Diagram of PNR Circuit (in Record mode) IN 20kHz LPF + CCA – NR DeDmph. T1 T4 Sub DeDmph. T3 Weighting Peak Det T2 T4 T1 Fig. 5 Block Diagram of PNR Circuit (in Playback mode) 61 PB Out 3) Audio Processor pin Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Line. 3(R) IN Vref out NR Emph Filter(R) DC.F.B(L) Line. 3(L) IN Weighting Filter. 1(L) Weighting Filter. 2(L) Peak Det. Filter(L) NR Emph Filter(L) Aux Mute Line(L) out Line(L) Mute Line(R) out Line(R) Mute Log Amp. (L) out Log Amp. (R) out Serial Clock IN Serial DATA IN Monaural out GND. 2 Mono ALC Filter FM out VCC 2 PB FM AGC Filter 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 PB FM IN ENV. Det. out Hi-Fi. Det. out Switching Pulse IN Zener Zap Pulse IN FM Mod. Monitor Normal Audio IN Peak Det. Filter (R) Weighting Filter. 2(R) Weighting Filter. 1(R) Normal Audio. out DC. F. B (R) Vcc 1 Line. 2(R) IN Line. 2(L) IN EUR(Rch) Rec Level Adj. TV(R) In EUR(Lch) Rec Level Adj. TV(L) IN ALC Filter Line. 1(R) in GND. 1 Line. 1(L) IN Vref Filter 62 4) Signal Flow & Operation in Record/Playback Modes Figure 7 shows the flow of signal in Record & EE mode. Norm. Audio Out Y Monaural Norm. Audio IC ! 33k 27k 1µ % Input Selector 120k u I O P { } 9 8dB IC Pin NO. Line IN TV IN ALC R Y EVR ALC Line Out Output Selector 1 3 9dB Through Rec FM Out PNR Vref Mod ‘ Monitor Fig. 7 Block Diagram of Record and EE Mode ! Record mode • TV In, Line In 1/2/3 can be selected by Bus Data. The line 2 & 3 are used for BS monitor input, and L CH of Line In 3 for SAP (Sub Audio Program) input. • Hi-Fi input signal's noise is reduced in PNR circuit through EVR (Electronic Volume Resistor), and modulated to FM, and output through port 22. • There are three modes in EVR: Through, Manual and ALC. All of them are selected by Bus. • In Manual mode, EVR gain can be controlled by adding voltage to R CH 40 and L CH 42. In ALC mode, EVR gain is automatically controlled together with maximum signal. • The modulator of these models adopts a Voltage Control Oscillator (VCO) especially with good linear performance. The center frequency of VCO is adjustment-free thanks to Zener Zap method. • The center frequency of TA1246F is within +/– 5Khz regardless of NTSC or pal, and both L CH and R CH of recorded FM signals are mixed and output through port 22. • The mix degree of L CH and R CH can be controlled by Bus Data step by step. @ EE mode The signal through EVR can select mode and channel by Bus Data in Output Selector and they will be output to Line Out and Monaural Out respectively. Maximum signal level is adjusted by ALC circuit in Monaural Out. # Normal Audio Normal Audio IC's signal, out of Input Selector, is output through port 35. An output mode of Mix, L CH and R CH is selected by Bus Data. Line 3 In (L CH) should be selected for SAP output. Meanwhile, signal out of normal audio is input to port 31 and then output to Line Out and Monaural Out after passing Output Selector Circuit. $ Playback mode Figure 8 shows the flow of signal in Playback mode. Monaural Out Norm. Audio IN R PB FM IN Q FM AGC BPF Demo. PNR SW. N.C ALC 9 Line Out Output Selector 9dB 1 3 Fig. 7 Block Diagram of Playback Mode • The Playback FM signal input by port 25, passes AGC AMP in order to compensate the level difference of rotating head, and L CH and R CH are separated in BPF. The center frequency of BPF is controlled to match with that of VCO. • Then, the signal is demodulated and passes through Switching Noise circuit. Finally it is input to Output Selector after reducing noise at PNR circuit. 63 5) Operation of Main Blocks ! Input Selector It selects one of TV In, Line In 1/2/3 by Bus Data. And also, it selects output of Normal Audio IC. @ Output Selector It selects output mode each of Hi-Fi/L CH/R CH, Line 2/3 monitor by Bus Data. # EVR (Electronic Volume Resistor) It controls audio record level by the voltage of port 40/42. $ Hi-Fi ALC It automatically controls level by EVR AGC mode selected by Bus Data, which also makes signal not be out of spec. Attack & recovery time of ALC is set by the constant of port 44. % VCO (Voltage Control Oscillator) VCO with good linear performance is used for these models. Center frequency of carrier does not require adjustment thanks to Zener Zap. Tolerance is +/– 5Khz of center for both L CH and R CH regardless of NTSC and Pal. ^ Switching Noise Compensation It compensates noise happened at rotating head. Compensation pulse is made by the constant inside of IC. & DOC (Drop Out Compensation) If playback FM signal is under 4 microsecond, dropout is detected and compensated, i.e., playback audio signal is adjusted close to Vref (Voltage Reference) from the dropout detect point. It names 'Smoothing Mute'. The delay time for dropout is 18microsec and its detect level is –20dB. * Envelope Detection It is used for adjusting tracking of head. It detects the Envelope Detection of playback FM signal after passing BPF. Channel of Envelope Detection (L CH or R CH) is selected by Bus Data. ( Hi-Fi Detection (Forced Normal) If dropout of playback of FM signal is 70 microsecond, non Hi-Fi is detected and port 27 comes to be high. Under this condition, audio output of Line Out is compulsorily changed to Normal Audio. The delay time of detection is 1.6 microsecond which is set by constant together with detection time. ) Monaural ALC There is an ALC circuit on Monaural Output of port 19 apart from Hi-Fi. Attack and recovery time are set by constant of port 21. If port 21 is grounded, ALC mode will not work. 1 AUX Audio Mute TA1246F has two Mute functions. One is Bus Mute which stops signal by Bus Data, and the other is AUX Mute which is operated by voltage applied from the outside. A Mute transistor, which does not need power of IC, is used for AUX Mute. Voltage addition to port 10 make Mute function possibly operated even without power of IC. (Mute TR cannot be controlled by Bus.) 2 Log Amp It is used for Audio Level Meter. If Bus Mute or AUX Mute is on, nothing is usually output. 3 Just Clock Mode It makes it output of Log Amp possibly used for Just Clock Mode (Adjustment to standard exact time). It is set by Bus Data. If Just Clock Mode is set, L CH output of Log Amp will not work even though AUX Audio Mute is on (Bus Data is off). 64 ELECTRICAL ADJUSTMENTS °° Fig. 1 - Circuit Board Location 65 ELECTRICAL ADJUSTMENTS (Hi-Fi MODEL) A/V JACK PT01 T M I R191 STEREO SEPARATION POWER SUPPLY PG SHIFTER ƒRDECK R595 ASSAMBLY FRONT Fig. 2 - Main board test point/control location guide (Component) 66 ELECTRICAL ADJUSTMENTS (Hi-Fi MODEL) PG (Pulse Generator) Shifter Adjustment (Fig. 3) Test Points: Adjust: PT01 PIN # Video Out Jack R595 (PG Shifter) Stereo Separation Adjustment Main Rear Panel Main Test Points: Adjust: (–) Terminal of C166 R191 Main 1. Connect scope prove to (–) Terminal of C166. The Pulse Generator (PG) Shifter determines the video head switching point during playback. Misadjustment of the PG Shifter may cause head switching noise in the picture and/or vertical jitter. 2. Receive RF signal. RF signal condition ! AUDIO: 1KHz 100% Mod. @ RF OUT Level: 73dBµV 1. Load the instrument with an alignment tape and play back the color bar signal or monoscope signal. 2. Connect channel-1 scope probe (1V/div.: 50µsec/div.) to PT01 PIN #. Trigger the scope on channel-1. 3. Connect channel-2 scope probe (1V/div.) to the Video Out Jack. 4. Set the scope to (-) slope and adjust the PG Shifter control VR595 so that the trailing edge of the SW 30Hz pulse is placed 6.5H±0.5H (horizontal) lines before the start of vertical sync pulse. 3. Adjust the STEREO SEPARATION Adjustment R191 so that Audio signal (1KHz) level comes to be 700mVp-p±50mVp-p. SWITCHING SW30Hz PULSE V. SYNC VIDEO OUTPUT 6.5H±0.5 Fig. 3 - PG Shifter Adjustment 67 LUMA/CHROMA WAVEFORMS 400mVp-p ! (IC301-11) 200mV/10µsec/cm REC 450mVp-p $ (IC301-22) 200mV/5ms/cm PLAY 550mVp-p & (IC301-29) 200mV/10µsec/cm PLAY 460mVp-p ( (IC301-32) 200mV/10µsec/cm PLAY 450mVp-p ! (IC301-11) 200mV/10µsec/cm 380mVp-p @ (IC301-15) 200mV/5µs/cm PLAY PLAY 520mVp-p % (IC301-26) 200mV/10µsec/cm 510mVp-p ^ (IC301-27) 200mV/10µsec/cm REC REC 520mVp-p * (IC301-30) 200mV/10µsec/cm 540mVp-p * (IC301-30) 200mV/10µsec/cm REC PLAY 400mVp-p ) (IC301-34) 200mV/10µsec/cm 380mVp-p ) (IC301-34) 100mV/10µsec/cm REC PLAY 68 1.3Vp-p # (IC301-14) 500mV/10µsec/cm REC 550mVp-p & (IC301-29) 200mV/10µsec/cm REC 480mVp-p ( (IC301-32) 200mV/10µsec/cm REC 4.9Vp-p 1 (IC301-37) 2V/20µsec/cm REC/PLAY LUMA/CHROMA WAVEFORMS 5.2Vp-p 2 (IC301-37) 1V/5msec/cm PICTURE SEARCH 2.4Vp-p 3 (IC301-39) 1V/10µsec/cm 2.4Vp-p 3 (IC301-39) 1V/10µsec/cm REC PLAY 600mVp-p 5 (IC301-49) 200mV/0.5µsec/cm REC/PLAY 69 5Vp-p 4 (IC301-44) 2V/10msec/cm REC/PLAY AUDIO WAVEFORMS 90mVp-p 6 (IC301-57) 20mV/0.2msec/cm REC 85mVp-p 0 (IC301-8) 20mV/0.5msec/cm PLAY 1.5Vp-p 7 (IC301-59) 0.5V/0.2msec/cm 0.3Vp-p 8 (IC301-60) 50mV/0.2msec/cm REC REC 60Vp-p “ (T201-5) 30V/20µsec/cm 75Vp-p ‘ (T201-6) 40V/20µsec/cm REC REC 70 2Vp-p 9 (IC301-64) 0.5V/0.2msec/cm REC SERVO WAVEFORMS 5.5Vp-p + (IC601-3) 2V/5µsec/cm 5Vp-p = (IC601-4) 2V/5µsec/cm 5Vp-p Q (IC601-18) 2V/5msec/cm 5Vp-p q (IC601-23) 2V/10msec/cm REC/PLAY REC/PLAY REC/PLAY REC/PLAY 5Vp-p W (IC601-24) 2V/0.5msec/cm 5Vp-p w (IC601-22) 2V/0.2msec/cm 5Vp-p E (IC601-39) 2V/50msec/cm 4Vp-p e (IC605-7) 2V/5msec/cm REC/PLAY REC/PLAY REC/PLAY REC/PLAY 4Vp-p R (IC605-1) 2V/5msec/cm 3Vp-p R (IC605-1) 1V/5msec/cm REC PLAY 71 Hi-Fi AUDIO WAVEFORMS 360mVp-p r (IC901-45) 100mV/0.5msec EE/REC/PLAY 900mVp-p y (IC901-33) 200mV/0.5msec EE/REC 900mVp-p T (IC901-7) 200mV/0.5msec 1100mVp-p t (IC901-22) 500mV/1msec EE/REC REC 360mVp-p U (IC901-47) 100mV/0.5msec EE/REC/PLAY 72 400mVp-p Y (IC901-25) 200mV/2msec PLAY 1) PREAMP VOLTAGE CHARTS (4-HEAD) MODE PREAMP MODE STOP REC PLAY 1 2.1 3.6 2.0 2.0 2.0 2.0 2.0 2 2.0 2.0 2.2 2.2 4.8 2.2 4.8 3 0 0 0 0 0 0 2.5 18 0 0 0 0 0 0 0 2.1 3.7 2.0 2.0 2.0 2.0 2.0 PIN No. REV/FWD SEARCH REC PAUSE PLAY PAUSE PREAMP REW/ F.FWD STOP REC PLAY REW/ F.FWD 16 0 1.6 0 17 0 4.2 0 PIN No. REV/FWD SEARCH REC PAUSE PLAY PAUSE 0.5 0 0.5 0.5 0 0 0 0 4 0 0 0 0 1.5 0 1.5 19 5 1.1 1.1 2.2 1.1 1.1 1.1 1.1 20 0.7 0 0.7 0.7 0.7 0.7 0.7 0 4.2 0.0 0.0 0.0 0.0 0.0 3.7 2.0 2.0 2.0 2.0 2.0 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 7 0.2 5.0 0 0 0 0 0 22 2.1 8 1.7 1.0 4.2 3.0 4.2 3.0 4.2 23 0.7 0 0.7 0.7 0.7 0.7 0.7 9 0 0 0 0 0 0 0 24 0 4.1 0 0 0 0 0 10 2.3 3.5 2.2 2.2 2.2 2.2 2.2 25 0 0 0 0 0 0 0 11 0 3.5 0 0.2 0.2 0.2 0.1 26 0 0 0 0 0 0 0 12 0 1.6 1.5 0.6 1.5 1.5 1.5 27 0.7 0 0.7 0.7 0.7 0.7 0.7 13 2.6 2.6 2.5 2.6 2.6 2.6 1.6 28 2.1 3.7 2.0 2.0 2.0 2.0 2.0 14 5.0 4.2 5 5 5 5 5 29 0 0 0 0 0 0 0 15 5.0 5.0 5.0 5.0 5.0 5.0 5.0 30 0.7 0 0.7 0.7 0.7 0.7 0.7 REV/FWD SEARCH REC PAUSE PLAY PAUSE 2) POWER VOLTAGE CHARTS MODE PIN No. POWER STOP REC PLAY MODE REW/ F.FWD 1 295¡ 142¡¡ 295¡ 142¡¡ 295¡ 142¡¡ 295¡ 142¡¡ 295¡ 142¡¡ 295¡ 142¡¡ 295¡ 142¡¡ 2 295¡ 142¡¡ 295¡ 142¡¡ 295¡ 142¡¡ 295¡ 142¡¡ 295¡ 142¡¡ 295¡ 142¡¡ 295¡ 142¡¡ 3 N.C N.C N.C N.C N.C N.C N.C MODE PIN No. POWER STOP REC PLAY STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 4 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 PIN No. SM801(P) *CAUTION: TEST POINT (PIN (1) (2) ¤B¤A (4) (5)) POWER MODE REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE PIN No. SM801(S) POWER STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE Q801 1 43.5 43.7 43.5 43.4 43.5 43.4 43.5 E 9.2 9.1 9.2 9.1 9.2 9.1 9.1 2 12.5 12.4 12.5 12.5 12.5 12.6 12.5 C 10.3 10.4 10.4 10.3 10.4 10.4 10.3 3 6.0 6.0 6.0 6.0 6.0 6.0 6.0 B 9.8 9.7 9.8 9.7 9.8 9.7 9.7 4 0 0 0 0 0 0 0 Q802 5 0 0 0 0 0 0 0 E 7.1 5.1 5.1 5.1 5.2 5.1 5.1 6 -25.4 (0) -25.4 (0) -25.4 (0) -25.4 (0) -25.4 (0) -25.4 (0) -25.4 (0) C 5.9 6.0 5.9 5.9 5.9 5.9 5.9 B 5.8 5.8 5.8 5.8 5.8 5.8 5.8 7 -17.8 (0) -17.8 (0) -17.8 (0) -17.8 (0) -17.8 (0) -17.8 (0) -17.8 (0) 8 -21.4 (0) -21.4 (0) -21.4 (0) -21.4 (0) -21.4 (0) -21.4 (0) -21.4 (0) ( ): LED MODEL ¡: K884NY-SJ/M, K884NZ-SJ/M, K884NZ-SG/M ¡¡: K884N-SJ, K884N-JJ, K884N-SG, K784N-SJ, K784N-JJ, K784N-SG, K804N-SJ 73 3) VIDEO (LUMA/CHROMA) AND LINEAR AUDIO VOLTAGE CHARTS MODE IC VIDEO/AUDIO MODE STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 1 2.5 2.5 2.5 2.5 2.5 2.5 2 2.5 1.0 0 0 0 0 PIN No. IC VIDEO/AUDIO PIN No. STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 2.5 43 1.5 1.5 1.5 1.5 1.5 1.5 1.5 0 44 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.0 2.0 2.2 2.0 2.2 2.0 2.2 3 5.5 0.7-3.0 5.5 5.5 5.5 5.5 5.5 45 4 0 0.8 0 0 0 0 0 46 3.8 3.8 3.8 3.8 3.8 3.8 3.8 2.8 4.0 4.0 4.0 4.0 4.0 4.0 5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 47 6 2.5 2.5 2.5 2.5 2.5 2.5 2.5 48 5.0 5.0 5.0 5.0 5.0 5.0 5.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 7 2.5 2.5 2.5 2.5 2.5 2.5 2.5 49 8 2.5 2.5 2.5 2.5 2.5 2.5 2.5 50 2.7 2.7 2.5 2.7 2.5 2.7 2.5 2.2 2.2 2.2 2.2 2.2 2.2 2.2 9 2.5 3.0 2.5 2.5 2.5 2.5 2.5 51 10 2.3 2.3 2.3 2.3 2.3 2.3 2.3 52 2.0 2.0 2.0 2.0 2.0 2.0 2.0 0 0 0 0 0 0 0 0 0 0 5.0 0 5.4 11 3.0 3.0 3.3 3.0 3.3 3.0 3.3 53 12 1.6 1.6 1.6 1.6 1.5 1.6 1.5 54 0 13 2.5 2.5 2.4 2.5 2.4 2.5 2.4 55 0 0 5.0 0 5.0 0 5.0 14 2.5 2.3 2.0 2.3 4.7 2.3 4.7 56 0 5.0 0 0 0 0 0 15 4.5 4.5 4.2 4.5 4.2 4.5 4.2 57 2.5 2.5 2.5 2.5 2.5 2.5 2.5 16 2.3 2.8 2.5 2.5 2.5 2.5 2.5 58 0 0 0 0 0 0 0 17 4.5 4.5 4.5 4.5 4.5 4.5 4.5 59 2.5 2.5 2.5 2.5 2.5 2.5 2.5 18 3.5 3.5 3.5 3.5 3.5 3.5 3.5 60 2.5 2.5 2.5 2.5 2.5 2.5 2.5 19 2.5 2.5 2.5 2.5 2.5 2.5 2.5 61 5.0 5.0 5.0 5.0 5.0 5.0 5.0 20 1.5 1.5 1.5 1.5 1.5 1.5 1.5 62 2.5 2.5 2.5 2.5 2.5 2.5 2.5 21 2.0 2.0 2.0 2.0 2.0 2.0 2.0 63 0 0 0 0 0 0 0 22 2.8 2.8 3.0 2.8 3.0 2.8 3.0 64 2.5 2.5 2.5 2.5 2.5 2.5 2.5 23 4.5 4.5 4.5 4.5 4.5 4.5 4.5 Q201 24 0 0 0 0 0 0 0 E 0 -17.5 0 -17.5 0 -17.5 0 25 0 0 0 0 0 0 0 C 0 0 0 0 0 0 0 26 2.5 2.4 4.7 2.5 4.7 2.4 4.7 B 0.7 -21 0.7 -21 0.7 -21 0.7 27 2.5 2.4 4.7 2.5 4.7 2.4 4.7 Q202 28 0 0 2.5 0 2.5 0 2.5 E 0 -17.5 0 -17.5 0 -17.5 0 0 0 0 0 0 0 0 0.7 -21 0.7 -21 0.7 -21 0.7 0.7-3.0 5.5 5.5 5.5 5.5 5.5 29 2.5 2.5 1.8 2.5 2.0 2.5 1.8 C 30 3.0 3.0 3.0 3.0 3.0 3.0 3.0 B 31 0 0 0 0 0 0 0 Q203 32 3.0 3.0 3.0 3.0 3.0 3.0 3.0 E 5.5 33 2.8 2.8 2.8 2.8 3.0 2.8 3.0 C 5.8 5.8 5.8 5.8 5.8 5.8 5.8 5.8 0.7-3.0 5.8 5.8 5.8 5.8 5.8 34 2.0 1.9 2.0 2.0 2.0 1.9 2.0 B 35 3.0 3.0 3.0 3.0 3.0 3.0 3.0 Q204 36 5.0 5.0 5.0 5.0 5.0 5.0 5.0 E 5.0 5.0 5.0 5.0 5.0 5.0 5.0 37 0.5 0.5 0.5 0.5 0.5 0.5 0.5 C 5.0 -22 5.0 -22 5.0 -22 5.0 4.5 5.0 4.5 5.0 4.5 5.0 4.5 38 0 0 0 0 0 0 0 B 39 1.8 1.8 1.8 1.8 1.8 1.8 1.8 Q205 40 4.0 4.0 4.0 4.0 4.0 4.0 4.0 E 0 0 0 0 0 0 0 41 2.0 2.2 2.2 2.2 2.2 2.0 2.2 C 5.0 0.7-3.0 5.0 5.0 5.0 5.0 5.0 42 3.2 3.2 3.2 3.2 3.2 3.2 3.2 B 0 0.8 0 0.8 0 0.8 0 74 MODE PIN No. IC VIDEO/AUDIO STOP REC PLAY REW/ F.FWD MODE REV/FWD SEARCH REC PAUSE PLAY PAUSE PIN No. Q301 IC VIDEO/AUDIO STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE Q351 E 1.5 1.5 1.2 1.5 1.2 1.5 1.2 E 1.8 1.8 2.0 1.8 2.0 1.8 2.0 C 5.0 5.0 5.0 5.0 5.0 5.0 5.0 C 0 0 0 0 0 0 0 B 2.2 2.2 1.8 2.2 1.8 2.2 1.8 B 1.2 1.2 1.2 1.2 1.2 1.2 1.2 Q303 E 2.0 2.0 2.0 2.0 2.0 2.0 2.0 C 5.0 5.0 5.0 5.0 5.0 5.0 5.0 B 2.5 2.5 2.5 2.5 2.5 2.5 2.5 REV/FWD SEARCH REC PAUSE PLAY PAUSE 4) OSD VOLTAGE CHARTS MODE PIN No. IC OSD STOP REC PLAY MODE REW/ F.FWD IC OSD PIN No. STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 1 0 0 0 0 0 0 0 16 1.8 1.8 1.8 1.8 1.8 1.8 1.8 2 2.5 2.5 2.5 2.5 2.5 2.5 2.5 17 5.0 5.0 5.0 5.0 5.0 5.0 5.0 3 2.5 2.5 2.5 2.5 2.5 2.5 2.5 18 1.8 1.8 1.8 1.8 1.8 1.8 1.8 4 0 0 0 0 0 0 0 19 0.4 0.4 0.4 0.4 0.4 0.4 0.4 5 0 0 0 0 0 0 0 20 2.0 2.0 2.0 2.0 2.0 2.0 2.0 6 0 0 0 0 0 0 0 21 2.0 2.0 2.0 2.0 2.0 2.0 2.0 7 0 0 0 0 0 0 0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 5.0 5.0 5.0 5.0 5.0 5.0 5.0 23 2.7 2.7 2.7 2.7 2.7 2.7 2.7 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 2.7 2.7 2.7 2.7 2.7 2.7 2.7 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 3.8 3.8 3.8 3.8 3.8 3.8 3.8 11 0 0 0 0 0 0 0 26 3.8 3.8 3.8 3.8 3.8 3.8 3.8 12 0 0 0 0 0 0 0 27 2.5 2.5 2.5 2.5 2.5 2.5 2.5 13 0 0 0 0 0 0 0 28 2.5 2.5 2.5 2.5 2.5 2.5 2.5 14 0 0 0 0 0 0 0 29 0 0 0 0 0 0 0 15 5.0 5.0 5.0 5.0 5.0 5.0 5.0 30 5.0 .5.0 5.0 5.0 5.0 5.0 5.0 5) TMI PIN VOLTAGE (HI-FI ) MODE MODE PIN NO NAME EE. REC (TUNER) EE. REC (LINE) 1 AUDIO IN 0 0 2 CH S/W 0 0 3 5V 5.0 5.0 4 TV VCR 0 0 5 VIDEO IN 0.8 6 5V 5.0 REMARK PIN NO NAME EE. REC (TUNER) EE. REC (LINE) 10 PLL STB 0 0 11 N.C 0 0 12 N.C 0 0 13 9V 9V 9V 1.2 14 AUDIO OUT 4.9 5.0 5.0 15 N.C 0 0 3CH:2.9V VCR:5.0V 7 32V 32 32 16 AFT 5.1 4.7 8 PLL CLK 0.1 0.1 17 N.C 8.8 8.8 9 PLL DATA 0.1 0.1 18 VIDEO OUT 5.4 5.4 75 REMARK 6) SWITCHING IC PIN VOLTAGE (HI-FI ) MODE MODE PIN NO NAME EE. REC (TUNER) EE. REC (LINE) 1 INPUT 1 0 REMARK PIN NO NAME EE. REC (TUNER) EE. REC (LINE) 0 6 LINE INPUT 2.9 2.9 2 CONTROL 1 0 0 7 MUTE 0 0 3 TUNER INPUT 3.4 3.4 8 OUTPUT 2.0 1.5 4 CONTROL 2 4.7 0 9 Vcc 5.0 5.0 5 GND 0 0 TUNER 'H' Q152 TUNER LINE Q153 TUNER REMARK LINE E 2.6 2.6 E 0 0 B 1.9 1.9 B 4.3 4.3 C 0 0 C 0 0 76 7) SERVO/SYSCON/TIMER u-COM VOLTAGE CHARTS MODE U-COM MODE STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 1 4.3 4.3 4.3 4.3 4.3 4.3 4.3 2 0 0 0 0 0 0 3 0 2.6 2.6 2.6 2.6 0 4 2.5 2.5 2.5 2.5 2.5 2.5 5 2.5 2.5 2.5 2.5 2.5 2.5 6 2.5 2.5 2.5 2.5 2.5 7 0 5.3 5.3 5.3 8 0 0 0 0 PIN No. U-COM STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 44 0 0 5.2 0 5.2 0 5.2 0 45 0 0 0 0 5.2 0 5.2 0 46 0 0 0 0 5.2 0 5.2 2.5 47 5.2 5.2 5.2 5.2 5.2 5.2 5.2 2.5 48 5.2 5.2 5.2 5.2 5.2 5.2 5.2 2.5 2.5 49 0 0 0 0 0 0 0 5.3 5.3 5.3 50 0 0 0 0 0 0 0 0 0 0 51 -23.8 (0) -11.8 (0) -14.7 (0) -14.7 (0) -11.7 (0) -7.5 (0) -9.5 (0) 52 -23.8 (0) -20.0 (0) -11.7 (0) -15.7 (0) -15.7 (0) -15.5 (0) -11.5 (0) 53 -19.8 (0) -20.0 (0) -11.7 (0) -11.7 (0) -11.7 (0) -19.5 (0) -7.5 (0) 54 -23.8 (0) -15.9 (0) -15.7 (0) -19.8 (0) -15.7 (0) -15.5 (0) -15.5 (0) 55 -19.7 (0) -7.7 (0) -7.5 (0) -11.6 (0) -7.5 (0) -3.4 (0) -7.3 (0) 56 -10.8 (0) -11.8 (0) -8.5 (0) -14.5 (0) -8.5 (0) -5.3 (0) -5.3 (0) 57 -19.7 (0.7) -11.5 (0.7) -5.0 (0.7) -19.7 (0.7) -5.0 (0.7) -7.5 (0.7) -7.5 (0.7) 58 -19.7 (0.7) -11.5 (0.7) -11.5 (0.7) -19.7 (0.7) -13.6 (0.7) -7.5 (0.7) -13.6 (0.7) 59 -19.7 (0.7) -19.7 (0.7) -19.7 (0.7) -19.7 (0.7) -19.7 (0.7) -19.7 (0.7) -19.7 (0.7) 60 -13.6 (0.7) -13.6 (0.7) -13.6 (0.7) -13.6 (0.7) -13.6 (0.7) -13.6 (0.7) -13.6 (0.7) 61 -13.6 (0.7) -13.6 (0.7) -13.6 (0.7) -13.6 (0.7) -13.6 (0.7) -13.6 (0.7) -13.6 (0.7) 62 -19.8 (0.7) -19.8 (0.7) -19.8 (0.7) -19.8 (0.7) -19.8 (0.7) -19.8 (0.7) -19.8 (0.7) 63 -23.2 (0.7) -23.2 (0.7) -23.2 (0.7) -23.2 (0.7) -23.2 (0.7) -23.2 (0.7) -23.2 (0.7) 64 -23.2 (0.7) -23.2 (0.7) -23.2 (0.7) -23.2 (0.7) -23.2 (0.7) -23.2 (0.7) -23.2 (0.7) 65 -23.2 (0) -23.2 (0) -23.2 (0) -23.2 (0) -23.2 (0) -23.2 (0) -23.2 (0) 66 -23.2 (0) -23.2 (0) -23.2 (0) -23.2 (0) -23.2 (0) -23.2 (0) -23.2 (0) 67 -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) 68 -19.7 (0) -19.7 (2.5) -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (2.5) -19.7 (0) 69 -19.7 (2.5) -19.7 (2.5) -19.7 (2.5) -19.7 (2.5) -19.7 (2.5) -19.7 (2.5) -19.7 (2.5) 70 -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) 71 -19.7 (2.5) -19.7 (2.5) -19.7 (2.5) -19.7 (2.5) -19.7 (2.5) -19.7 (2.5) -19.7 (2.5) 72 -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) -19.7 (0) 9 0 0 0 0 0 0 0 10 5 5 5 5 5 5 5 11 5.2 5.2 5.2 5.2 5.2 5.2 5.2 12 2.7 2.7 2.7 2.7 2.7 2.7 2.7 13 0 0 0 5.2 0 0 0 14 3.2 3.2 3.2 3.2 3.2 3.2 3.2 15 2.6 2.6 2.6 2.6 2.6 2.6 2.6 16 0 0 0 0 2.5 2.5 2.5 17 0 0 0 0 2.5 0 0 18 2.5 2.5 2.5 2.5 2.5 2.5 2.5 19 0 0 0 0 5.2 5.2 5.2 20 2.5 2.5 2.5 2.5 2.5 2.5 2.5 21 3.0 2.5 3.0 3.0 3.0 3.0 3.0 22 5.3 2.5 2.5 2.5 2.5 5.3 5.3 23 5.3 4.8 4.8 4.8 4.8 4.8 4.8 24 5.3 2.5 2.5 2.5 2.5 2.5 2.5 25 5.3 3.0 3.0 3.0 3.0 3.0 3.0 26 5.2 5.2 5.2 5.2 5.2 5.2 5.2 27 5.2 5.2 5.2 5.2 5.2 5.2 5.2 28 5.2 5.2 5.2 0 5.2 5.2 5.2 29 0 5.2 5.2 5.2 0/5.2 5.2 5.2 30 0 0 0 0 5.2/0 0 0 31 0 0 0 0 0 0 0 32 0 0 0 0 0 0 0 33 5.2 5.2 0 5.2 0 5.2 0 34 0 5.2 0 0 0 0 0 35 0 0 0 0 0 0 0 36 0 0 0 0 0 0 0 37 5.2 5.2 5.2 5.2 5.2 5.2 5.2 38 2.3 2.3 2.3 2.3 2.3 2.3 2.3 39 2.3 2.3 2.3 2.3 2.3 2.3 2.3 40 0 0 0 0 0 0 0 41 0 0 0 0 0 0 0 42 1.1 1.1 1.1 1.1 1.1 1.1 1.1 43 1.1 1.1 1.1 1.1 1.1 1.1 1.1 PIN No. 77 MODE U-COM MODE PIN No. STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 73 2.5 3.4 2.5 3.7 0 2.5 U-COM PIN No. STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 0 87 5.2 5.2 5.2 5.2 5.2 5.2 5.2 74 2.5 2.5 2.5 2.5 2.5 2.5 2.5 88 0 0 0 0 0 0 0 75 -24 -24 -24 -24 -24 -24 -24 89 5.2 5.2 5.2 5.2 5.2 5.2 5.2 76 5.3 5.3 5.3 5.3 5.3 5.3 5.3 90 2.9 2.9 2.9 2.9 2.9 2.9 2.9 77 5.3 5.3 5.3 5.3 5.3 5.3 5.3 91 2.7 2.7 2.7 2.7 2.7 2.7 2.7 78 5.3 5.3 5.3 5.3 5.3 5.3 5.3 92 1.4 1.4 4.0 1.4 2.7 2.4 2.7 79 0 0 0 0 0 0 0 93 0.5 0.5 0.5 4.4 0 0.5 0.5 80 0 0 0 0 0 0 0 94 0 0 0 0.8 0 0 0 81 5.2 5.2 5.2 5.2 5.2 5.2 5.2 95 0 2.2 0 0 0 0 2.2 82 5.2 5.2 5.2 5.2 5.2 5.2 5.2 96 0 0 0 0 0 0 0 83 5.2 5.2 5.2 5.2 5.2 5.2 5.2 97 5.2 5.2 5.2 5.2 5.2 5.2 5.2 84 5.2 0 5.2 5.2 5.2 0 5.2 98 0 0 0 0 0 0 0 85 0.2 0.2 0.2 0.2 0.2 0.2 0.2 99 5.2 5.2 5.2 5.2 5.2 5.2 5.2 86 0 0 0 0 0 0 0 100 4.3 4.3 4.3 4.3 4.3 4.3 4.3 REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE ( ): LED MODEL MODE IC DRIVE MODE STOP REC PLAY 6 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 7 12.4 12.4 12.4 12.4 12.4 12.4 12.4 2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 8 12.4 12.4 12.4 12.4 12.4 12.4 12.4 3 0.9 0.9 0.9 0.9 0.9 0.9 0.9 9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 4 6.2 6.2 6.2 6.2 6.2 6.2 6.2 10 0.5 0.5 0.5 0.5 0.5 0.5 0.5 5 0 0 0 0 0 0 0 PIN No. REV/FWD SEARCH REC PAUSE PLAY PAUSE IC DRIVE REW/ F.FWD PIN No. IC602 MODE IC RESET STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 1 5.2 5.2 5.2 5.2 5.2 5.2 5.2 2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 3 0 0 0 0 0 0 0 PIN No. IC604 78 STOP REC PLAY 8) AUDIO Hi-Fi VOLTAGE CHARTS MODE PIN No. Hi-Fi AUDIO STOP REC PLAY REW/ F.FWD MODE REV/FWD SEARCH REC PAUSE PLAY PAUSE STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 27 0 0 0 0 4.5 0 4.4 PIN No. IC901 Hi-Fi AUDIO 1 4.4 4.4 4.4 4.4 4.4 4.5 4.5 28 4.6 4.6 4.6 4.6 4.6 4.6 4.6 2 4.5 4.5 4.5 4.5 4.5 4.5 4.5 29 0 0 0 0 0 0 0 3 4.5 4.5 4.5 4.5 4.5 4.5 4.5 30 2.4 2.4 0.8 2.4 0.8 2.4 0.8 4 4.5 4.5 4.5 4.5 4.5 4.5 4.5 31 4.5 4.5 4.5 4.0 4.0 4.5 4.5 5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 32 0 0 0 0 0 0 0 6 4.5 4.5 4.5 4.5 4.5 4.5 4.5 33 4.5 4.5 4.5 4.5 4.5 4.5 4.5 7 4.5 4.5 4.6 4.6 4.6 4.5 4.5 34 4.5 4.5 4.5 4.5 4.5 4.5 4.5 8 0 0 0 0 0 0 0 35 4.5 4.5 4.5 4.5 4.5 4.5 4.5 9 4.5 4.5 4.5 4.5 4.5 4.5 4.5 36 4.5 4.5 4.5 4.5 4.5 4.5 4.5 10 0 0 0 0 5.2 0 5.2 37 9.1 9.1 9.1 9.1 9.1 9.1 9.1 11 4.5 4.5 4.5 4.5 4.5 4.5 4.5 38 4.5 4.5 4.5 4.5 4.5 4.5 4.5 12 0 0 0 0 0 0 0 39 4.5 4.5 4.5 4.5 4.5 4.5 4.5 13 4.5 4.5 4.5 4.5 4.5 4.5 4.5 40 0 0 0 0 0 0 0 14 0 0 0 0 0 0 0 41 4.5 4.5 4.5 4.5 4.5 4.5 4.5 15 0 0 0 0 0 0 0 42 0 0 0 0 0 0 0 16 0 0 0 0 0 0 0 43 4.5 4.5 4.5 4.5 4.5 4.5 4.5 17 4.9 4.6 4.5 4.5 4.5 4.8 4.8 44 0 0 0 0 0 0 0 18 4.8 4.4 4.4 4.4 4.4 4.6 4.7 45 4.5 4.5 4.5 4.5 4.5 4.5 4.5 19 4.6 4.1 4.6 4.1 4.1 4.6 4.4 46 0 0 0 0 0 0 0 20 0 0 0 0 0 0 0 47 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 21 0 0 0 0 0 0 0 48 22 1.6 2.3 0.7 1.2 0.7 1.5 0.7 Q901 23 5.1 5.1 5.1 5.1 5.1 5.1 5.1 E 0 0 0 0 0 0 0 24 0 0.9 1.5 0 1.5 0 1.5 C 0 0 3.4 0 0 0 0 25 1.9 3.5 1.9 1.9 1.9 1.9 1.9 B 0 0 0 0 4.3 0 4.3 26 0 0 3.6 0 0 0 0.9 MODE Hi-Fi PRE-AMP AUDIO MODE STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 5.0 5.0 5.0 5.0 5.0 5.0 5.0 2 0 0.8 0 0 0 0 0 3 2.6 2.6 2.6 2.6 2.6 2.6 2.6 PIN No. 1 STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 13 0 0.7 0 0 0 0 0 14 0 0.5 0 0 0 0 0 15 0 3.9 0 0 0 0 0 16 0 0 0 0 0 0 0 PIN No. ICH01 Hi-Fi PRE-AMP AUDIO 4 0 0 0 0 0 0 0 17 0.8 0 0.8 0.8 0.8 0.8 0.8 5 2.0 3.5 2.0 2.0 2.0 2.0 2.0 18 0.7 0 0.7 0.7 0.7 0.7 0.7 6 2.7 2.7 2.7 2.7 2.7 2.7 2.7 19 0 0 0 0 0 0 0 7 5.0 5.0 5.0 5.0 5.0 5.0 5.0 20 0.7 0 0.7 0.7 0.7 0.7 0.7 8 0 0 0 0 0 0 0 21 0.8 0 0.8 0.8 0.8 0.8 0.8 9 0 0 0 0 0 0 0 22 0 0 0 0 0 0 0 10 3.0 3.0 3.0 3.0 3.0 3.0 3.0 23 0 4.0 0 0 0 0 0 11 0.5 1.3 0.5 0.5 0.5 0.5 0.5 24 0 4.0 0 0 0 0 0 12 0.7 5.0 0.7 0.7 0.7 0.7 0.7 79 TROUBLESHOOTING GUIDES POWER CIRCUIT Caution: When checking the primary circuit, be sure to use an isolation transformer. NO OUTPUT Voltage Does the AC power cord check OK? NO Change AC CORD YES Is 140V supplied to pin !,@ of SM801 primary? NO Check F801/L801/ D801/C806 YES Is output voltage of SM801 secondary correct? NO Change SM801 YES Is output voltage of Q801 emitter 9V? NO Check R804/D802/D807/C810 YES Isoutput voltage of Q802 emitter 5V? NO Check R805/R809/D805/C818 YES Is voltage of cathode of D806 32V? NO YES OK 80 Check R806 and D806 TROUBLESHOOTING GUIDES (Continued) SERVO/SYSCON/LOGIC CIRCUIT A. Digitron does not operate. Is+5V supplied to pin 76 of IC601? NO Check the D804 YES Is-24V supplied to pin 75 of IC601? NO Check power circuit. YES Are -20 and -16.5V supplied to pin 1 and 35 of G701? NO Check the power circuit and D717. YES Is 5V at pin 37 of IC601? NO Check IC604. YES Check X602. NO YES Is 5V applied to pin 87 of IC601. YES Check X601 and IC601. Check IC601. 81 NO Check R624. TROUBLESHOOTING GUIDES (Continued) B. LED or Digitron is lit but key do not operate. Is each key pulse applied to pin 49 , 50 of IC601? NO Check key matrix circuit. YES Check IC601 C. 1 minute back up timer does not operate. When disconnecting the power cord,Is 5.0V at pin 26 and 81 of IC601? NO Check C813. YES Do pin 42 and 43 of IC601 oscillate? NO Check X601, R636, R635, C605 and C606 NO Check the IC604 RESET circuit. YES Is +5V applied to pin 37 of IC601? YES Is 0V applied to pin 87 of IC601 NO YES Check IC601. 82 Check the R624 TROUBLESHOOTING GUIDES (Continued) D. When change the channel broadcast signal is not received. YES Is the output of pin and 80 of IC601 normal? 77 , 79 , NO Check IC601 YES Check the Video, Audio output signal of pin 14 , 18 of TMI BLOCK (RF101) YES Check the video output signal pin 8 of IC303 YES NO Check the Video circuit. Check the TMI BLOCK. E. LED is not operate. YES Is 5V supplied to pin 76 of IC601. NO Check D804 YES Is GND applied to pin 75 of IC601 NO Check JP225 YES Is 5V applied to pin 37 of IC601 NO Check IC604 YES Check X602 NO Check IC601 YES Is 5V applied to pin 87 of IC601 NO Check IC624 YES Check X601 and IC601 83 NO Check the IC601 83 pin. TROUBLESHOOTING GUIDES (Continued) F. Playback picture is not good. YES Noise appears although adjusting tracking. NO Adjust tracking. YES Noise shakes up and down on the screen. NO Noise appears although change cassette tape. YES Check and re-adjust the Path of Deck. YES Is CTL pulse applied to pin Q of IC601? NO CTL HEAD height is normal and there is not dust. NO Adjust the HEAD height and remove dust. YES YES Check IC601 Check CTL in circuit (R515, C510, C511) CTL AMP circuit (R512, R513, R514) CTL shimmite circuit (R509, R510, R511) and AMP Vcc (IC605 pin *). 84 TROUBLESHOOTING GUIDES (Continued) G. Playback picture is not good. Noise appears over the entire screen NO Check TS Flowchart (E) YES Are SW pulse and HA SW applied to PRE-AMP circuit? NO Is SW pulse supplied from pin 8 of IC601 NO Check D.PG input (IC601 pin +) and connector (P502) YES YES Is Enve.waveform supplied to at pin $ of PT01? Check pattern NO YES Check connector. Head Amp and Clean heads. Check VIDEO circuit. H. Instrument goes to auto stop during playback Is Reel pulse applied to pin % and ^ of IC601? YES NO Check REEL sensor part. Is D.FG applied to pin = of IC601 NO Check connector (P502) and D.FG circuit (R501) NO Check connector (P501) and C.FG circuit (R504, C503) YES Is C.FG applied to pin ‘ of IC601 YES Check IC601 85 TROUBLESHOOTING GUIDES (Continued) I. Drum Motor dose not rotate. Is 12V supplied to P502 pin !? NO Check power circuit. YES Is D.PWM (pin $) of IC601 correct NO Check IC601 and D.FG. YES Is the voltage of P502 pin @ 1.2V? NO Check R503, R523 and C506 YES Check connector (P502) and DRUM Motor J. Capstan Motor does not rotate. Is 12V supplied to P501 pin &? NO Check power circuit. YES Is the voltage of pin ^ P501 3.2V? NO Check circuit of R510 R516, R517, R518, C505 YES Is the voltage of P501 pin $ 2.5V? NO Check R521, R522. YES Is C.PWM (pin #) of IC601 correct? NO Check IC601 and C.FG. YES Is the voltage of pin % P501 2~3V NO YES Check connector (P501) and capstan motor 86 Check R519, R520, C504. TROUBLESHOOTING GUIDES (Continued) K. Drum Motor and Capstan M/T rotate at irregular speed(In REC mode). NO Is C.Sync applied to pin ‹ of IC601? NO Check C.Sync of video circuit. YES Check IC601 L. The instrument goes into the emergency mode front display shows "err"when AC power is connected. Is 12V supplied to &,* of IC602. NO Check power circuit. YES Are Rin and Fin applied to %,^ of IC602. NO Check IC601. YES Is CAM SW DATA (C601 pin W w E and e) Correct? NO Check IC602 and loading motor. YES YES Check IC601. Check connector (P601 $~&) and CAM SW in DECK Meckanism. 87 NO Change IC602 and loading motor. TROUBLESHOOTING GUIDES (Continued) M. Cassette loading inoperative. Is Motor 12V (IC602 pin & and *) suppiled? NO Check power circuit. YES Is 6V applied to pin $ of IC602 NO Check R631, D601, IC602. YES Is 5V applied to pin ^ of IC602 when CST IN? NO Pin R of IC601. NO Change IC602. YES Is 6.2V applied to pin ) of IC602 when CST IN? YES Check connector (P601 pin ! and @) and loading motor in DECK Mechanism. 88 TROUBLESHOOTING GUIDES (Continued) VIDEO CIRCUIT A. EE MODE Picture NG YES Is video signal input into pin # and ^ of IC303 NO Check PIF circuit and LINE IN JACK YES Is 5V supplied at pin ( of IC151 NO Check power circuit. YES Is signal output from pin * of IC303 Check IC601 pin M Tuner mode: H Line mode : L NO NO YES YES Is signal input into pin o of IC301 Check IC601 Change IC303 NO Check PCB pattern YES Is signal output from pin I of IC301 Is 5V suppiled to pin y and ] of IC301 NO NO Check power circuit YES Check IC301 to pin q EE mode : L PB mode : H YES Is signal Input into pin 8 of ICS01 Check IC601 Low NO Check PCB pattern and ICS01 NO Check OSD circuit YES Is signal output from pin 6 of ICS01 High YES Line out RF out 89 Change IC301 TROUBLESHOOTING GUIDES (Continued) B. PB video signal missing. YES Is envelope output from ICA01 pin ) ? NO Is 5V supplied at ICA01 pin 5 ? NO Check power circuit NO Check IC601 pin 8 YES YES Is SW pulse input into ICA01 pin % ? YES Is signal input at IC301 pin 1,5 ? NO Clean head or change head Check PCB pattern YES Is signal output from IC301 pin 8,0 ? NO Check IC301 pin y,] 5V? NO Check Power circuit YES YES Is signal input into IC301 pin ‘ ? Check IC301 pin q EE mode: L PB mode: H YES Is signal output from IC301 pin E ? Low High NO Check IC601 pin p Change IC301 YES Is signal input into e ? NO Check Q301 YES Is composite video signal out from IC301 pin t ? NO Change IC301 YES YES Is composite video signal input into IC301 pin r ? NO YES Is composite video signal output from IC301 pin I ? NO Is composite video signal output from IC302 pin # ? YES NO NO Is 5V supplied to IC302 pin *? Does X301 crystal (3.58MHz) oscillate? NO Check Q351 YES Check OSD circuit Is CLOCK (3.58MHz) Supplied at IC303 pin % ? Change X301 Change IC301 90 (15PPM) TROUBLESHOOTING GUIDES (Continued) C. Record video signal NG (4 head and 4-head HiFi model) Check EP mode YES Is Iuminance and color signal output from IC301 pin 1,4 ? NO Is signal input into IC301 pin o ? YES Is REC signal input into ICA01 pin 1 ? NO Check RA01, RA02, CA11 YES Is +5V supplied at ICA01 pin 5 ? NO Check power circuit YES Is REC(H) signal supplied ICA01 pin & ? NO Check REC(H) YES Is C.sync signal supplied ICA01 pin ^ ? NO Check C. sync YES Is SW pulse input into ICA01 pin % ? NO Check IC601 pin 8 YES Is REC signal output from pin 8,7 ? SP mode : pin 7 SLP mode : pin 8 NO Change ICA01 YES Check video head and connector 91 NO Check input selector circuit TROUBLESHOOTING GUIDES (Continued) D. OSD Character Incorrect. YES NO Is 5V supplied at ICS01 pin e,7 ? Check power circuit. YES NO Is composit video signal output from IC301 pin I ? Check IC301 YES NO Check serial data ICS01 pin *,(,) YES Change ICS01 92 Check IC601 TROUBLESHOOTING GUIDES (Continued) AUDIO CIRCUIT (Hi-Fi MODEL) A. No sound in the E-E mode Is 9V applied to pin U ? of IC901? NO YES Is 5V applied to pin + of IC901 and pin J of IC301? Check power circuit. NO YES Is signal input pin {,} of IC901 in line mode? NO Check INPUT JACK YES Is 0V applied to pin ) of IC901? NO Check SYSCON circuit YES Is there output at pin 1,3 of IC901? NO YES Check OUTPUT JACK 93 Change IC901 TROUBLESHOOTING GUIDES (Continued) B. No Hi-Fi sound in playback mode of Hi-Fi recorded tape. Is the ENVE level of IC901 pin Q more than 200mVp-p? Check the ICH01 of PRE-AMP circuit NO YES Is A.SW PULSE input into pin w of IC901? NO Check IC601 YES Is pin W of IC901 0V ? NO Is the ENVE level into pin Q of IC901? YES Change IC901 94 YES Change IC901 TROUBLESHOOTING GUIDES (Continued) C. No Hi-Fi sound in the playback mode after Hi-Fi recording. Check the following procedure in RECORD mode Is the signal applied to pin O,P of IC901? NO Check IC151 YES IS 5V Base of Q204? NO Check IC601 YES Is there output at pin ‘ of IC901? NO Check IC901 YES Is there FM osc wave at pin @ of PA01 Check pin 2 of ICH01 NO YES YES Check pin),5 of ICH01 Clean HEAD 95 NO Check IC601 TROUBLESHOOTING GUIDES (Continued) D. No sound in the linear playback mode Is the output at pin 1,3 of IC901? NO Is 9V applied pin U of IC901? NO Check Power circuit YES Is 5V applied to pin + of IC901 and pin J of IC301? NO Check Power circuit YES Is there Audio output pin ( of IC301? NO Check A/C head YES Is pin % of IC301 GND? YES Check P201 and A/C head 96 NO Check IC301 and IC901 TROUBLESHOOTING GUIDES (Continued) E. No linear sound in the playback mode after linear recording. Check the following procedure in RECORD mode. Is the signal applied to pin {,} of IC901 and pin G of IC301? NO Check INPUT JACK YES Is 5V Base of Q204? NO Check IC601 YES Is there output at pin k of IC301? NO Check IC301 YES Does T201 oscillate? NO Is the voltage above 5.8V at pin @ of T201? NO Check power circuit YES Is 0.7~3.0V to Collector of Q205 NO Check Q205, IC301 YES YES Check Q203 Collect: 5.8V Base: 0.7~3.0V YES Check A/C HEAD and connector pin #,$,% of P201 Check T201 97 NO Check Q203 INTERCONNECT WIRING DIAGRAM K884N/K784N/K804N Hi-Fi INTERCONNEC WIRING DIAGRAM REV.1 97. 2. 5 98 POWER SUPPLY SCHEMATIC DIAGRAM (FREE VOLTAGE) K884NY-SJ/M K884NZ-SJ/M K884NZ-SG/M 99 POWER SUPPLY SCHEMATIC DIAGRAM (120V ONLY) K884N-SJ/K884N-JJ/K884N-SG/K784N-SJ/K784N-JJ/K784N-SG/804N-SJ 100 PRE-AMP SCHEMATIC DIAGRAM K884N/K784N/804N Hi-Fi PREAMP SCHEMATIC DIAGRAM REV.1 97. 2. 5 101 VIDEO & AUDIO SCHEMATIC DIAGRAM K884N/K784N/K804N 102 PIF & MPX SCHEMATIC DIAGRAM K884N/K784N/K804N Hi-Fi PIF & MPX SCHENATIC DIAGRAM REV.1 97. 2. 5 103 TIMER & SYSCON SCHEMATIC DIAGRAM K884N/K784N/K804N 104 Hi-Fi AUDIO SCHEMATIC DIAGRAM K884N/K784N/K804N Hi-Fi AUDIO SCHEMATIC DIAGRAM REV.1 97. 2. 5 105 POWER SUPPLY BLOCK DIAGRAM (FREE VOLTAGE) K884NY-SJ/M K884NZ-SJ/M K884NZ-SG/M 106 POWER SUPPLY BLOCK DIAGRAM (120V ONLY) K884N-SJ/K884N-JJ/K884N-SG/K784N-SJ/K784N-JJ/K784N-SG 107 PRE-AMP BLOCK DIAGRAM K884N/K784N/K804N Hi-Fi PREAMP BLOCK DIAGRAM REV.1 97. 2. 5 108 VIDEO & AUDIO BLOCK DIAGRAM K884N/K784N/K804N Hi-Fi VIDEO & BLOCK DIAGRAM REV.1 97. 2. 5 109 PIF & MPX BLOCK DIAGRAM K884N/K784N/K804N Hi-Fi PIF & MPX BLOCK DIAGRAM REV.1 97. 2. 5 110 TIMER & SYSCON BLOCK DIAGRAM SEG C~SEG F G3. G4. G6. G7. G8 K884N/K784N/K804N Hi-Fi TIMER & SYSCON BLOCK DIAGRAM REV.1 97. 2. 5 111 Hi-Fi AUDIO BLOCK DIAGRAM K884N/K784N/K804N AUDIO BLOCK DIAGRA REV.1 97. 2. 5 112 PACKING AND ACCESSORY ASS'Y & ^ $ @ ! % SET ! No. # 113 Part Name Part No. 1 PAD FRONT/BACK 97P4925200 Q'ty 1 Description 97P4922300 1 EPS 2 POLYBAG FOR SET 97P4803100 1 P.E ROAM 3 BOX CARTON 97P5043000 1 EX300*SCP150*EX300 4 MANUAL OWNERS 97P9560000 1 ALL MODEL 5 CABLE RF 97P880RN15 1 NTSC 1.5M 6 COVER ACCESSORY 97P0424100 1 LD-PE TO.1 7 REMOCON HADSET AS 97P1R2BZ00 1 VR-F2BR K884N-SG K784N-SG K884NZ-SG/M 97P1R2BR04 1 VR-F2BR K884N-JJ K784N-JJ 97P1R2BR05 1 VR-F2BR K884N-SJ K784N-SJ K804N-SJ EPS Remark K804N K884N K784N ✔ Caution : In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr) ELECTRICAL PART LIST 1. PCB MAIN AS BASIC LED VCR+ MODEL -DIS &2HRS SYM NO PART-CODE PART-NAME PART-DESC ƒNSM801 PVPWSWN339 AUTO VOLT REGULATOR K584NY-SJ/M(L088C,MAIN-IN) O O O % SM801 97PB222600 AUTO VOLT REGULATOR DV-K5F4N-SJ O O O C151 CEXF1C101A C ELECTRO 16V RSM 100MF (6.3X7) TP O O O C152 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C153 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C155 CCZF1H104Z C CERA HIKF 50V 0.1MF Z AXIAL O O O C159 CXCH1H809D C CERA 50V CH 8PF D (TAPPING) O O O C160 CEXF1A471V C ELECTRO 10V RSS 470MF 8X11.5 O O O C161 HCFK223ZCA C CHIP CERA 50V Y5V 0.022MF Z 2012 O O O C164 CEXF1C331V C ELECTRO 16V RSS 330MF (8X11.5) TP O O O C166 CEXF1H109V C ELECTRO 50V RSS 1MF (5X11) TP O O O C168 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C201 HCLK681JCA C CHIP CERA 50V SL 680PF J 2012 O O O C202 CEXF1E220A C ELECTRO 25V RSM 22MF 6.3X7 O O O C203 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP O O O C204 CCZF1H104Z C CERA HIKF 50V 0.1MF Z AXIAL O O O C206 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP O O O C207 HCBK222KCA C CHIP CERA 50V X7R 2200PF K 2012 O O O C208 CEXF1H479A C ELECTRO 50V RSM 4.7MF 4X7 O O O C209 CMXM2A223J C MYLAR 100V 0.022MF J TP O O O C210 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP O O O C211 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP O O O C212 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C213 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 O O O C214 HCBK102KCA C CHIP CERA 50V X7R 1000PF K 2012 O O O C216 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C217 CMXM2A333J C MYLAR 100V 0.033MF J (TP) O O O C218 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP O O O C219 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 O O O C220 HCBK222KCA C CHIP CERA 50V X7R 2200PF K 2012 O O O C222 CMXM2A103J C MYLAR 100V 0.01MF J (TP) O O O C223 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP O O O C301 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C302 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF M (AXIAL) O O O C303 HCBK473KCA C CHIP CERA 50V X7R 0.047MF K 2012 O O O C304 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C305 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C306 HCLK300JCA C CHIP CERA 50V SL 30PF J 2012 O O O C307 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C309 HCLK391JCA C CHIP CERA 50V SL 390PF J 2012 O O O C311 HCLK201JCA C CHIP CERA 50V SL 200PF J 2012 O O O C312 HCLK100DCA C CHIP CERA 50V SL 10PF D 2012 O O O 117 SYM NO BASIC LED VCR+ MODEL -DIS &2HRS PART-CODE PART-NAME PART-DESC C314 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C315 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C317 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C318 CEXF1H479A C ELECTRO 50V RSM 4.7MF 4X7 O O O C319 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 O O O C320 CEXF1C101A C ELECTRO 16V RSM 100MF (6.3X7) TP O O O C321 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP O O O C322 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C324 CEXF1E220A C ELECTRO 25V RSM 22MF 6.3X7 O O O C325 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C327 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 O O O C328 CEXF1C101A C ELECTRO 16V RSM 100MF (6.3X7) TP O O O C329 HCLK100DCA C CHIP CERA 50V SL 10PF D 2012 O O O C330 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C331 HCFK473ZCA C CHIP CERA 50V Y5V 0.047MF Z 2012 O O O C332 HCLK390JCA C CHIP CERA 50V SL 39PF J 2012 O O O C336 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C337 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP O O O C340 HCLK510JCA C CHIP CERA 50V SL 51PF J 2012 O O O C343 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP O O O C344 CCZF1H104Z C CERA HIKF 50V 0.1MF Z AXIAL O O O C345 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP O O O C351 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP O O O C352 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C353 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C354 CCZB1H101K C CERA 50V B 100PF K (AXIAL) O O O C355 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C357 HCLK820JCA C CHIP CERA 50V SL 82PF J 2012 O O O C380 HCLK471JCA C CHIP CERA 50V SL 470PF J 2012 O O O C502 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C503 HCBK102KCA C CHIP CERA 50V X7R 1000PF K 2012 O O O C504 HCFK223ZCA C CHIP CERA 50V Y5V 0.022MF Z 2012 O O O C505 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C506 HCFK223ZCA C CHIP CERA 50V Y5V 0.022MF Z 2012 O O O C507 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP O O O C508 CEXF1H479A C ELECTRO 50V RSM 4.7MF 4X7 O O O C509 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C510 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP O O O C511 HCBK222KCA C CHIP CERA 50V X7R 2200PF K 2012 O O O C512 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF M (AXIAL) O O O C513 CCZB1H102K C CERA 50V B 1000PF K (AXIAL) O O O C521 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF M (AXIAL) O O O C570 HCLK101JCA C CHIP CERA 50V SL 100PF J 2012 O O O C571 CDXA0H104K C SUPER 5.5V 0.1F TAPING X - O C601 CCZF1H104Z C CERA HIKF 50V 0.1MF Z AXIAL O O O 118 SYM NO BASIC LED VCR+ MODEL -DIS &2HRS PART-CODE PART-NAME PART-DESC C602 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C603 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP O O O C605 HCQK180JCA C CHIP CERA 50V CH 18PF J 2012 O O O C606 HCQK180JCA C CHIP CERA 50V CH 18PF J 2012 O O O C607 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C608 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C609 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C610 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C611 CCZF1H104Z C CERA HIKF 50V 0.1MF Z AXIAL O O O C613 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C614 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP O O O C615 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF M (AXIAL) O O O C616 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF M (AXIAL) O O O C617 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C618 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C619 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP O O O C620 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP O O O C621 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C622 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP O O O C631 HCQK240JCA C CHIP CERA 50V CH 24PF J 2012 O O O C636 HCQK240JCA C CHIP CERA 50V CH 24PF J 2012 O O O C650 CEXF1H479A C ELECTRO 50V RSM 4.7MF 4X7 O O O O O O O O O O O O O O O C801 C804 CL1UE3104M C LINE ACROSS AC275V 0.1MF M 1.40 WORLD A CL1EE3104M C LINE ACROSS AC275V 0.1MF M PCX2 335 W A CL1JB3104M C LINE ACROSS AC250V 0.1MF M ECQ-UV WRL CH1TEE332M C CERA AC 2.5KV 3300PF M AA AC 250V A CH1CEE332M C CERA AC 2.5KV 3300PF M DE AC 250V A CH1FEE332M C CERA AC 2.5KV 3300PF M KH AC 250V CH1TFE332M C CERA AC 4.0KV 3300PF M AD AC250V ƒN A CH1CFE332M C CERA AC 4.0KV 3300PF M DG AC250V ƒN A CH1FFE332M C CERA AC 4.0KV 3300PF M KD AC250V CH1TEE332M C CERA AC 2.5KV 3300PF M AA AC 250V % A CH1CEE332M C CERA AC 2.5KV 3300PF M DE AC 250V % A CH1FEE332M C CERA AC 2.5KV 3300PF M KH AC 250V CEXF2E680V C ELECTRO 250V RSS 68MF O O O ƒN C805 % C805 % C806 ƒNC807 CEXN2G820P C ELECTRO 400V LHS 82MF O O O C808 CEXF1A101F C ELECTRO 10V RX 100MF 6.3X11 O O O C809 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP O O O C810 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP O O O C811 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP O O O C813 CEXF1A471V C ELECTRO 10V RSS 470MF 8X11.5 O - X C813 CEXF1A221V C ELECTRO 10V RSS 220MF X - O C815 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP O O O C818 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP O O O C901 CEXF1C101A C ELECTRO 16V RSM 100MF (6.3X7) TP O O O 119 SYM NO BASIC LED VCR+ MODEL -DIS &2HRS PART-CODE PART-NAME PART-DESC C902 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 O O O C903 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C904 CEXF1A221V C ELECTRO 10V RSS 220MF 6.3X11 O O O C905 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C906 HCBK683KCA C CHIP CERA 50V X7R 0.068MF K 2012 O O O C907 HCLK681JCA C CHIP CERA 50V SL 680PF J 2012 O O O C908 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C909 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP O O O C910 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C911 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O C912 CEXF1E220A C ELECTRO 25V RSM 22MF 6.3X7 O O O C916 HCLK331JCA C CHIP CERA 50V SL 330PF J 2012 O O O C920 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O C921 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 O O O CK01 HCBK822KCA C CHIP CERA 50V X7R 8200PF K 2012 O O O CK02 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 O O O CK03 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 O O O CK04 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CK05 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 O O O CK06 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 O O O CK07 CMXM2A682J C MYLAR 100V 6800PF J (TP) O O O CK08 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O CK10 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O CM01 HCBK822KCA C CHIP CERA 50V X7R 8200PF K 2012 O O O CM02 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 O O O CM03 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 O O O CM04 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CM05 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 O O O CM06 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 O O O CM07 HCBK682KCA C CHIP CERA 50V X7R 6800PF K 2012 O O O CM08 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O CM10 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O CS01 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CS02 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP O O O CS03 HCQK240JCA C CHIP CERA 50V CH 24PF J 2012 O O O CS04 HCQK240JCA C CHIP CERA 50V CH 24PF J 2012 O O O CS05 HCFK223ZCA C CHIP CERA 50V Y5V 0.022MF Z 2012 O O O CS06 HCBK682KCA C CHIP CERA 50V X7R 6800PF K 2012 O O O CS07 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O CS08 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O CS10 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 O O O CS11 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP O O O CS12 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP O O O CS13 HCQK240JCA C CHIP CERA 50V CH 24PF J 2012 O O O CS14 HCQK240JCA C CHIP CERA 50V CH 24PF J 2012 O O O 120 SYM NO BASIC LED VCR+ MODEL -DIS &2HRS PART-CODE PART-NAME PART-DESC CS15 HCLK201JCA C CHIP CERA 50V SL 200PF J 2012 O O O CS17 HCLK101JCA C CHIP CERA 50V SL 100PF J 2012 O O O CS18 HCLK101JCA C CHIP CERA 50V SL 100PF J 2012 O O O CS19 HCLK101JCA C CHIP CERA 50V SL 100PF J 2012 O O O D301 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D303 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D501 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D502 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D503 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D504 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D601 DZZ6R2BM-- DIODE ZENER UZ6.2BM (AUTO) O O O D602 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D603A 97P2334200 HOLDER LED SENSOR POM O O O D603 DS1R481T-- LED IR SIR-48IT O O O D701 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D702 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D703 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D704 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D708 DZN4148--- DIODE 1N4148 AUTO 52MM X O - D709 DZN4148--- DIODE 1N4148 AUTO 52MM X - O D710 DZN4148--- DIODE 1N4148 AUTO 52MM O O O D712 DSR5323V-- LED SR5323V X O - D713 DSR5323H-- LED SR5323V X O - D714 DSR5323H-- LED SR5323V X O - D715 DSR5323H-- LED SR5323V X O - D716 DSR5323H-- LED SR5323V X O - D717 DZZ3R9B--- DIODE ZENER DZ 3R9B (3R9) (AUTO) O X - D801 DS1WBA60-- DIODE BRIDGE S1WBA60 O O O D802 DZZ9R1BM-- DIODE ZENER UZ-9.1BM AUTO O O O D803 DZN4003--- DIODE IN4003 O O O A D1N4003--- DIODE IN4003(TAPPING) DZN4003--- DIODE IN4003 O O O A D1N4003--- DIODE IN4003(TAPPING) D804 D805 DZZ5R6BM-- DIODE ZENER DZ 5.6BM (AUTO) O O O D806 DZTZ33B--- DIODE ZENER MTZ-33B O O O D807 DZN4148--- DIODE 1N4148 AUTO 52MM O O O ƒND810 DRD16FB2-- DIODE ZENER RD16FB2 O O O ƒNF801 5FFGB2092B FUSE GLASS TUBE 5TT 2.0A 250V UL/CSA/KS O O O A 5F1GB2022L FUSE GLASS TUBE UL/CSA MF51 2A 250V TL 5FFGB1592B FUSE GLASS TUBE 5TT 1.5A 250V UL/CSA/KS O O O ƒN % F801 % FUSE GLASS TUBE UL/CSA TL 1.5A 125V MF51 F801A A 5F1GB1521L 97P460170P CLIP FUSE PFC5000-0702 O O O F801B 97P460170P CLIP FUSE PFC5000-0702 O O O V.F.D 8MT-88GA O X - V.F.D SVV-8SS06L G701 D8MT88GA-A DSVV8SS06L 121 BASIC LED VCR+ MODEL -DIS &2HRS SYM NO PART-CODE PART-NAME PART-DESC GH01 97P2340200 HOLDER DIGITRON PP O X - H701 1TFMX5380- IC UNIT R/RECEIVER TFMX5380(38KHZ) PREAMP O O O A 1TS0P1238X O O O IC UNIT R/RECEIVER TSOP1238XG1 (38KHZ) IC151 1SBX183701 IC HYBRID SBX1837-01 IC301 1LA71004M- IC VIDEO/AUDIO LA71004M A/V 1 CHIP O O O IC302 1LC89962-- IC VIDEO LC89962(1H CCD) O O O IC303 1LA7152--- IC SWITCH LA7152 O O O IC601 168KK8X3TS IC MICOM M37775M5H-340GP (K8X3TS) O O O IC602 1BA6209--- IC BA6209(ROHM) O O O A 1KA8301--- IC KA8301(SAMSUNG) A 1DBL2084-- IC DBL2084(D/W) 24LC04B X - O IC603 124LC04B-- IC MEMORY IC604 1MN1380L-- IC COMPARATOR(RESET) MN1380-L(RESET IC) O O O IC605 1MC4558C-- IC OP AMP MC4558C(KA4558) O O O IC901 1TA1246F-- IC HI-FI TA1246F O O O ICS01 12BKF4P4ML IC OSD LC74763-9119 O O O JK151 97P6313200 JACK PIN DPAE-9401 HIFI V TYPE O O O JP017 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF O X - 5PB13857-- COIL BEAD BI3857 O O O CBZP1C103M C CERA SEMI 16V Y5S 0.01MF O X - ƒNJP062 JP116 5PB13857-- COIL BEAD BI3857 O O O L152 5CPX688M-- COIL PEAKING 0.68UH 5MM M RADIAL O O O L153 5CPX100J-- COIL PEAKING PL 10UH J (TAPPING) O O O L201 5CPX101J-- COIL PEAKING PL 100UH J (TAPPING) O O O L301 5CPZ680K02 COIL PEAKING 68UH K (AXIAL 3.5MM) O O O L315 5CPZ100K02 COIL PEAKING 10UH K (AXIAL 3.5MM) O O O L350 5CPX100J-- COIL PEAKING PL 10UH J (TAPPING) O O O L369 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING O O O L370 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING O O O L501 5CPX100J-- COIL PEAKING PL 10UH J (TAPPING) O X - L601 5PB13857-- COIL BEAD BI3857 O O O L602 5PB13857-- COIL BEAD BI3857 O O O L611 5PB13857-- COIL BEAD BI3857 O O O L801 5PLFSQ2014 FILTER LINE SQ-2014 40MH O O O L802 56C220K686 COIL CHOKE 22UH K 27.5X0.4D O O O L803 56C220K686 COIL CHOKE 22UH K 27.5X0.4D O O O L901 5CPX101J-- COIL PEAKING PL 100UH J (TAPPING) O O O L902 5CPX470J-- COIL PEAKING 47UH J (RADIAL) O O O LH01 97P2340400 HOLDER LED ABS X O - LS01 5CPX101J-- COIL PEAKING PL 100UH J (TAPPING) O O O LS02 5CPX569G-T COIL PEAKING EL0405RA 5R6G RADIAL (TP) O O O LS04 5CPX101J-- COIL PEAKING PL 100UH J (TAPPING) O O O M802 97P0974300 PLATE EARTH-P ET T=0.4 O O O P201 97P885X081 CONN AS (Y5X081) 6H/2H-9S 260(TUBE)/100MM O O O P301 97P62G02BK CONN B/B GB200 PLUG 2.0MM 19P O O O ƒNJP149 122 SYM NO BASIC LED VCR+ MODEL -DIS &2HRS PART-CODE PART-NAME PART-DESC P501 97P62T112A CONN B/B (PLUG) TKC-GP PLUG 10P O O O P502 97P62T1126 CONN B/B (PLUG) TKC-GP PLUG 6P O O O P601 97P8810710 CONN ASS'Y 7H-7S,100MM O O O P801 97P62Y04X4 CONN WAFER YW396 4P NC O O O PT01 97P6269000 CONN WAFER 00-8283-0612-00000 O O O ƒNPW01 97PA4E2211 CORD POWER AS KKP-419C 0.75MM 2100MM O O O % PW01 PVPCSWN320 CORD POWER AS 97P69U1211(HOUSING) O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O Q152 Q153 TZTA1266Y- TR KTA1266Y- (AUTO)(1015Y) A TZSA733CY- TR KSA733C-Y (AUTO) A TSTA933Y-- TR STA933-Y TZSR1004-- TR KSR1004 (AUTO) TR KRC104M (AUTO) A TZRC104M-Q201 Q202 Q203 Q204 Q205 Q301 Q303 Q351 Q801 TZTC3198Y- TR KTC3198Y-(1815Y) (AUTO) A TZSC945CY- TR KSC945C-Y (AUTO) A TSTC1740Y- TR STC1740-Y TZTC3198Y- TR KTC3198Y-(1815Y) (AUTO) A TZSC945CY- TR KSC945C-Y (AUTO) A TSTC1740Y- TR STC1740-Y TZTC3202Y- TR KTC3202Y (AUTO)(1959Y) A TSTC1741Y- TR STC1741-Y A TZTC1959Y- TR KTC1959-Y (AUTO) A TZTC3205Y- TR KTC3205Y (AUTO) A TZSC2328AY TR KSC2328A-Y (AUTO) TZTA1266Y- TR KTA1266Y- (AUTO)(1015Y) A TZSA733CY- TR KSA733C-Y (AUTO) A TSTA933Y-- TR STA933-Y TZTC3198Y- TR KTC3198Y-(1815Y) (AUTO) A TZSC945CY- TR KSC945C-Y (AUTO) A TSTC1740Y- TR STC1740-Y TZTC3198Y- TR KTC3198Y-(1815Y) (AUTO) A TZSC945CY- TR KSC945C-Y (AUTO) A TSTC1740Y- TR STC1740-Y TZTC3198Y- TR KTC3198Y-(1815Y) (AUTO) A TZSC945CY- TR KSC945C-Y (AUTO) A TSTC1740Y- TR STC1740-Y TZTA1266Y- TR KTA1266Y- (AUTO)(1015Y) A TZSA733CY- TR KSA733C-Y (AUTO) A TSTA933Y-- TR STA933-Y TZTC3205YA TZSC2328AY Q802 Q901 TZTC3205Y- KTC3205Y (2236Y) KSC2328A-Y (AUTO) TR KTC3205Y (2236Y) A TZSC2328AY TR KSC2328A-Y (AUTO) TZSR1004-- TR KSR1004 (AUTO) TR KRC104M (AUTO) R CARBON FILM 1/6 10K OHM J A TZRC104M-R152 TR TR RD-AZ103J- 123 BASIC LED VCR+ MODEL -DIS &2HRS SYM NO PART-CODE PART-NAME PART-DESC R153 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R154 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R155 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R156 RD-AZ750J- R CARBON FILM 1/6 75 OHM J O O O R157 RD-AZ102J- R CARBON FILM 1/6 1K OHM J O O O R159 RD-AZ331J- R CARBON FILM 1/6 330 OHM J O O O R160 RD-4Z621J- R CARBON FILM 1/4 620 OHM J O O O R161 RD-AZ750J- R CARBON FILM 1/6 75 OHM J O O O R163 HRFT564JCA R CHIP 1/10 560K OHM J 2012 O O O R164 RD-4Z621J- R CARBON FILM 1/4 620 OHM J O O O R165 HRFT473JCA R CHIP 1/10 47K OHM J 2012 O O O R167 HRFT914JCA R CHIP 1/10 910KOHM J 2012 O O O R168 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R191 RV5426103M R SEMI FIXED H10K-5X3-6Y-PC-MS O O O R201 HRFT225JCA R CHIP 1/10 2.2M OHM J 2012 O O O R202 HRFT113JCA R CHIP 1/10 11K OHM J 2012 O O O R203 HRFT562JCA R CHIP 1/10 5.6K OHM J 2012 O O O R204 RD-AZ112J- R CARBON FILM 1/6 1.1K OHM J O O O R205 RD-AZ223J- R CARBON FILM 1/6 22K OHM J O O O R206 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R207 HRFT229JCA R CHIP 1/10 2.2 OHM J 2012 O O O R208 HRFT152JCA R CHIP 1/10 1.5K OHM J 2012 O O O R209 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R210 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R211 HRFT273JCA R CHIP 1/10 27K OHM J 2012 O O O R212 HRFT161JCA R CHIP 1/10 160 OHM J 2012 O O O R213 HRFT334JCA R CHIP 1/10 330K OHM J 2012 O O O R214 HRFT113JCA R CHIP 1/10 11K OHM J 2012 O O O R215 HRFT822JCA R CHIP 1/10 8.2K OHM J 2012 O O O R216 HRFT123JCA R CHIP 1/10 12K OHM J 2012 O O O R217 RD-AZ561J- R CARBON FILM 1/6 560 OHM J O O O R218 RD-AZ470J- R CARBON FILM 1/6 47 OHM J O O O R219 HRFT334JCA R CHIP 1/10 330K OHM J 2012 O O O R220 RD-AZ433J- R CARBON FILM 1/6 43K OHM J O O O R223 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R224 HRFT229JCA R CHIP 1/10 2.2 OHM J 2012 O O O R230 HRFT472JCA R CHIP 1/10 4.7K OHM J 2012 O O O R301 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O R302 HRFT272JCA R CHIP 1/10 2.7K OHM J 2012 O O O R303 RD-AZ681J- R CARBON FILM 1/6 680 OHM J O O O R305 HRFT472JCA R CHIP 1/10 4.7K OHM J 2012 O O O R306 HRFT182JCA R CHIP 1/10 1.8K OHM J 2012 O O O R308 RD-AZ122J- R CARBON FILM 1/6 1.2K OHM J O O O R310 HRFT152JCA R CHIP 1/10 1.5K OHM J 2012 O O O R311 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O 124 BASIC LED VCR+ MODEL -DIS &2HRS SYM NO PART-CODE PART-NAME PART-DESC R312 RD-AZ182J- R CARBON FILM 1/6 1.8K OHM J O O O R313 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R319 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R332 HRFT822JCA R CHIP 1/10 8.2K OHM J 2012 O O O R334 HRFT185JCA R CHIP 1/10 1.8M OHM J 2012 O O O R352 HRFT222JCA R CHIP 1/10 2.2K OHM J 2012 O O O R355 HRFT824JCA R CHIP 1/10 820K OHM J 2012 O O O R362 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R363 HRFT822JCA R CHIP 1/10 8.2K OHM J 2012 O O O R399 HRFT133JCA R CHIP 1/10 13K OHM J 2012 O O O R500 HRFT511JCA R CHIP 1/10 510 OHM J 2012 O O O R501 RD-AZ102J- R CARBON FILM 1/6 1K OHM J O O O R502 RD-AZ102J- R CARBON FILM 1/6 1K OHM J O O O R503 RD-AZ473J- R CARBON FILM 1/6 47K OHM J O O O R504 RD-AZ102J- R CARBON FILM 1/6 1K OHM J O O O R505 HRFT221JCA R CHIP 1/10 220 OHM J 2012 O O O R506 RD-AZ752J- R CARBON FILM 1/6 7.5K OHM J O O O R507 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R508 HRFT472JCA R CHIP 1/10 4.7K OHM J 2012 O O O R509 HRFT472JCA R CHIP 1/10 4.7K OHM J 2012 O O O R510 HRFT912JCA R CHIP 1/10 9.1K OHM J 2012 O O O R511 HRFT473JCA R CHIP 1/10 47K OHM J 2012 O O O R512 HRFT105JCA R CHIP 1/10 1M OHM J 2012 O O O R513 HRFT752JCA R CHIP 1/10 7.5K OHM J 2012 O O O R514 HRFT221JCA R CHIP 1/10 220 OHM J 2012 O O O R515 HRFT472JCA R CHIP 1/10 4.7K OHM J 2012 O O O R516 HRFT153JCA R CHIP 1/10 15K OHM J 2012 O O O R517 RD-AZ332J- R CARBON FILM 1/6 3.3K OHM J O O O R518 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R519 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R520 HRFT473JCA R CHIP 1/10 47K OHM J 2012 O O O R521 HRFT182JCA R CHIP 1/10 1.8K OHM J 2012 O O O R522 HRFT182JCA R CHIP 1/10 1.8K OHM J 2012 O O O R523 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R524 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O R525 HRFT332JCA R CHIP 1/10 3.3K OHM J 2012 O O O R526 HRFT332JCA R CHIP 1/10 3.3K OHM J 2012 O O O R527 HRFT153JCA R CHIP 1/10 15K OHM J 2012 O O O R528 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R530 RD-AZ473J- R CARBON FILM 1/6 47K OHM J O O O R595 RV5426104M R SEMI FIXED H100K-5X3-6Y-PC-MS O O O R602 RD-AZ511J- R CARBON FILM 1/6 510 OHM J O O O R604 RD-AZ102J- R CARBON FILM 1/6 1K OHM J O O O R605 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R606 HRFT104JCA R CHIP 1/10 100K OHM J 2012 O O O 125 SYM NO BASIC LED VCR+ MODEL -DIS &2HRS PART-CODE PART-NAME PART-DESC R607 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R608 RD-AZ273J- R CARBON FILM 1/6 27K OHM J O O O R609 RD-AZ201J- R CARBON FILM 1/6 200 OHM J O O O R610 HRFT273JCA R CHIP 1/10 27K OHM J 2012 O O O R611 HRFT201JCA R CHIP 1/10 200 OHM J 2012 O O O R612 RD-AZ301J- R CARBON FILM 1/6 300 OHM J O O O R613 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O R614 HRFT105JCA R CHIP 1/10 1M OHM J 2012 O O O R615 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R616 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R617 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R618 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O R619 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O R620 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O R621 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O R622 HRFT304JCA R CHIP 1/10 300K OHM J 2012 O O O R623 HRFT304JCA R CHIP 1/10 300K OHM J 2012 O O O R624 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R626 RD-AZ103J- CARBON FILM 1/6 10K OHM J O O O R627 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O R628 HRFT474JCA R CHIP 1/10 470K OHM J 2012 O O O R629 HRFT101JCA R CHIP 1/10 100 OHM J 2012 O O O R630 RD-AZ101J- R CARBON FILM 1/6 100 OHM J O O O R631 HRFT332JCA R CHIP 1/10 3.3K OHM J 2012 O O O R632 RD-AZ102J- R CARBON FILM 1/6 1K OHM J O O O R633 HRFT000-CA R CHIP 1/10 0 OHM 2012 O O O R634 HRFT753JCA R CHIP 1/10 75K OHM J 2012 O O O R635 RD-4Z106J- R CARBON FILM 1/4 10M OHM J O O O R636 HRFT104JCA R CHIP 1/10 100K OHM J 2012 O O O R638 HRFT473JCA R CHIP 1/10 47K OHM J 2012 O O O R639 HRFT823JCA R CHIP 1/10 82K OHM J 2012 O O O R640 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R641 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R642 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R643 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O R644 RD-AZ301J- R CARBON FILM 1/6 300 OHM J O O O R646 RD-AZ101J- R CARBON FILM 1/6 100 OHM J O O O R647 RD-AZ473J- R CARBON FILM 1/6 47K OHM J O O O R648 RD-AZ393J- R CARBON FILM 1/6 39K OHM J O O O R658 RD-AZ242J- R CARBON FILM 1/6 2.4K OHM J O O O R701 RD-AZ473J- R CARBON FILM 1/6 47K OHM J O O O R702 RD-AZ473J- R CARBON FILM 1/6 47K OHM J O O O R703 HRFT303JCA R CHIP 1/10 30K OHM J 2012 O X - R705 RD-AZ201J- R CARBON FILM 1/6 200 OHM J X O - R706 RD-AZ201J- R CARBON FILM 1/6 200 OHM J X O - 126 BASIC LED VCR+ MODEL -DIS &2HRS SYM NO PART-CODE PART-NAME PART-DESC R707 RD-AZ101J- R CARBON FILM 1/6 100 OHM J X O - R708 RD-AZ201J- R CARBON FILM 1/6 200 OHM J X O - R709 RD-AZ201J- R CARBON FILM 1/6 200 OHM J X O - R708 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING O O O R713 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING O X - ƒNR801 RC-2Z565K0 R CARBON COMP 1/2 5.6M OHM K O O O % R801 RD-2Z335J- R CARBON FILM 1/2 3.3M OHM J O O O ƒNR803 RW02B229J- R WIRE WOUND 2W 2.2 OHM J O O O % R803 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING O O O R804 RD-2Z332J- R CARBON FILM 1/2 3.3K OHM J O O O R805 RD-AZ511J- R CARBON FILM 1/6 510 OHM J O O O R806 HRFT272JCA R CHIP 1/10 2.7K OHM J 2012 O O O R807 RS01Y100J- R M-OXIDE FILM 1W 10 OHM J O O O R809 RD-AZ430J- R CARBON FILM 1/6 43 OHM J O O O R901 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O R902 RD-AZ333J- R CARBON FILM 1/6 33K OHM J O O O R903 HRFT563JCA R CHIP 1/10 56K OHM J 2012 O O O R904 HRFT303JCA R CHIP 1/10 30K OHM J 2012 O O O R910 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O R911 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O O O O RF101 97P7607300 TUNER 3 IN 1 TMVH2-602A A 97P7608100 TUNER 3 IN 1 TMLH2X010A RK01 RD-AZ271J- R CARBON FILM 1/6 270 OHM J O O O RK02 RD-AZ103J- R CARBON FILM 1/6 10K OHM J O O O RK03 RD-AZ273J- R CARBON FILM 1/6 27K OHM J O O O RK04 HRFT333JCA R CHIP 1/10 33K OHM J 2012 O O O RK05 RD-AZ563J- R CARBON FILM 1/6 56K OHM J O O O RK06 HRFT273JCA R CHIP 1/10 27K OHM J 2012 O O O RM01 RD-AZ271J- R CARBON FILM 1/6 270 OHM J O O O RM02 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O RM03 RD-AZ273J- R CARBON FILM 1/6 27K OHM J O O O RM04 HRFT333JCA R CHIP 1/10 33K OHM J 2012 O O O RM05 RD-AZ563J- R CARBON FILM 1/6 56K OHM J O O O RM06 HRFT273JCA R CHIP 1/10 27K OHM J 2012 O O O RS01 HRFT102JCA R CHIP 1/10 1K OHM J 2012 O O O RS02 HRFT152JCA R CHIP 1/10 1.5K OHM J 2012 O O O RS03 HRFT682JCA R CHIP 1/10 6.8K OHM J 2012 O O O RS04 HRFT121JCA R CHIP 1/10 120 OHM J 2012 O O O RS05 HRFT202JCA R CHIP 1/10 2K OHM J 2012 O O O S601 97P0S01800 SENSOR REEL SG-239S O O O S602 97P0S01800 SENSOR REEL SG-239S O O O S603A 97P2338200 HOLDER TR ABS O O O S603 TST5811--- TR PHOTO ST-5811(D-RANK) O O O S604A 97P2338200 HOLDER TR ABS O O O S604 TST5811--- TR PHOTO ST-5811(D-RANK) O O O 127 BASIC LED VCR+ MODEL -DIS &2HRS SYM NO PART-CODE PART-NAME PART-DESC R707 RD-AZ101J- R CARBON FILM 1/6 100 OHM J X O - SW151 5S30102119 SW SLIDE JSS 1207 O O O SW601 5S70101059 SW MICRO SPPB62 O O O SW701 5S50101Z97 SW TACT SKHV10914A 9.5M AUTO O O O A 5S50101Z96 SW TACT KSM0614BTS 9.5M AUTO A 5S50101Z98 SW TACT EVQ11L90K 9.5MM AUTO 5S50101Z97 SW TACT SKHV10914A 9.5M AUTO O O O A 5S50101Z96 SW TACT KSM0614BTS 9.5M AUTO A 5S50101Z98 SW TACT EVQ11L90K 9.5MM AUTO O O O O O O O O O O O O O O O O O O SW702 SW703 SW704 5S50101Z97 SW TACT SKHV10914A 9.5M AUTO A 5S50101Z96 SW TACT KSM0614BTS 9.5M AUTO A 5S50101Z98 SW TACT EVQ11L90K 9.5MM AUTO 5S50101Z97 SW TACT SKHV10914A 9.5M AUTO A 5S50101Z96 SW TACT KSM0614BTS 9.5M AUTO A 5S50101Z98 SW TACT EVQ11L90K 9.5MM AUTO 5S50101Z97 SW TACT SKHV10914A 9.5M AUTO A 5S50101Z96 SW TACT KSM0614BTS 9.5M AUTO A 5S50101Z98 SW TACT EVQ11L90K 9.5MM AUTO 5S50101Z97 SW TACT SKHV10914A 9.5M AUTO A 5S50101Z96 SW TACT KSM0614BTS 9.5M AUTO A 5S50101Z98 SW TACT EVQ11L90K 9.5MM AUTO 5S50101Z97 SW TACT SKHV10914A 9.5M AUTO A 5S50101Z96 SW TACT KSM0614BTS 9.5M AUTO A 5S50101Z98 SW TACT EVQ11L90K 9.5MM AUTO 5S50101Z97 SW TACT SKHV10914A 9.5M AUTO A 5S50101Z96 SW TACT KSM0614BTS 9.5M AUTO A 5S50101Z98 SW TACT EVQ11L90K 9.5MM AUTO T201 560202L692 COIL OSC DEO-006 O O O VA801 DSVC471D14 VARISTOR SVC471D14A O O O VA802 DSVC471D14 VARISTOR SVC471D14A O O O X301 5XE3R579TB CRYSTAL QUARTZ HC-49/U 3.579545MHZ 15PPM O O O X601 5XZR03276G CRYSTAL QUARTZ SO-26 32.768000KHZ 10PPM O O O X602 5XJ14R31AE CRYSTAL QUARTZ ATS-49/U 14.31818MHZ 30PP O O O XS01 5XE14R318E CRYSTAL QUARTZ HC-49/U 14.318180MHZ30PPM O O O PART-CODE PART-NAME PART-DESC CA01 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CA02 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CA03 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CA04 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CA05 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CA06 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O SW705 SW706 SW707 SW708 2. PCB HEAD-AMP AS SYM NO 128 BASIC LED VCR+ MODEL -DIS &2HRS SYM NO BASIC LED VCR+ MODEL -DIS &2HRS PART-CODE PART-NAME PART-DESC CA07 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CA08 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 O O O CA09 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 O O O CA10 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CA11 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CA12 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP O O O CA13 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CA14 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CA15 CEXE0J221S C ELECTRO 6.3V RSA 220MF 6.3X7 O O O CH01 CCZF1H104Z C CERA HIKF 50V 0.1MF Z AXIAL O O O CH02 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CH03 HCLK101JCA C CHIP CERA 50V SL 100PF J 2012 O O O CH04 HCLK101JCA C CHIP CERA 50V SL 100PF J 2012 O O O CH05 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CH06 CCZF1H104Z C CERA HIKF 50V 0.1MF Z AXIAL O O O CH07 CCZB1H221K C CERA 50V B 220PF K (AXIAL) O O O CH08 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP O O O CH09 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF M (AXIAL) O O O CH10 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CH11 CCXF1H473Z C CERA 50V F 0.047MF Z (TAPPING) O O O CH12 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 O O O CH13 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 O O O CH14 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 O O O CH15 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 O O O ICA01 1LA7416--- IC PREAMP LA7416 4CH PRE/REC AMP O O O ICH01 1BA7746FS- IC AUDIO BA7746FS(PREAMP) O O O LA01 5CPX100J-- COIL PEAKING PL 10UH J (TAPPING) O O O LH01 5CPX100J-- COIL PEAKING PL 10UH J (TAPPING) O O O PA01 97P6289650 CONN WAFER 10P FPC O O O PA02 97P62G01BK CONN B/B GB200 RECEP 2.0MM 19P O O O RA01 HRFT751JCA R CHIP 1/10 750 OHM J 2012 O O O RA02 HRFT241JCA R CHIP 1/10 240 OHM J 2012 O O O RA06 HRFT222JCA R CHIP 1/10 2.2K OHM J 2012 O O O RA07 HRFT223JCA R CHIP 1/10 22K OHM J 2012 O O O RA08 HRFT223JCA R CHIP 1/10 22K OHM J 2012 O O O RA30 HRFT823JCA R CHIP 1/10 82K OHM J 2012 O O O RH01 HRFT561JCA R CHIP 1/10 560 OHM J 2012 O O O RH02 HRFT561JCA R CHIP 1/10 560 OHM J 2012 O O O RH03 HRFT561JCA R CHIP 1/10 560 OHM J 2012 O O O RH04 RD-AZ561J- R CARBON FILM 1/6 560 OHM J O O O RH05 RD-AZ681J- R CARBON FILM 1/6 680 OHM J O O O RH06 HRFT150JCA R CHIP 1/10 15 OHM J 2012 O O O RH07 RD-AZ682J- R CARBON FILM 1/6 6.8K OHM J O O O RH08 RD-AZ123J- R CARBON FILM 1/6 12K OHM J O O O RH09 HRFT182JCA R CHIP 1/10 1.8K OHM J 2012 O O O 129 SYM NO BASIC LED VCR+ MODEL -DIS &2HRS PART-CODE PART-NAME PART-DESC RH10 HRFT224JCA R CHIP 1/10 220K OHM J 2012 O O O RH11 RD-AZ473J- R CARBON FILM 1/6 47K OHM J O O O RH12 RD-AZ182J- R CARBON FILM 1/6 1.8K OHM J O O O RH13 HRFT681JCA R CHIP 1/10 680 OHM J 2012 O O O RH30 HRFT103JCA R CHIP 1/10 10K OHM J 2012 O O O NOTEs)"ƒN": Only apply to the model for Middle-America. (Free-Volt) DV-K884NY-SJ/M,K884NZ-SJ/M,K884NZ-SG/M "%" : Only apply to the model for North-America. (AC 120V) DV-K884N-SJ,K884N-JJ,K884N-SG,K784N-SJ,K784N-JJ, K784N-SG,K804N-SJ "BASIC MODEL" : DV-K884NY-SJ/M "LED-DIS." : K784N-SJ,K784N-JJ,K784N-SG "VCR+ & 2HRs" : K884N-JJ,K784N-JJ, "-" means don't care condition. "A" means the alternate components. 130

Service Manual - Driver Dll Service Manual User Guide

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