Tre-10 Tone Remote Encoder With Balanced 600 Ohm Line Driver

Transcript

TRE-10 Tone Remote Encoder with Balanced 600 Ohm Line Driver Manual Revision: 2011-08-26 Covers Loader Firmware Revisions: 1.70 & Higher Covers Application Firmware Revisions: 1.30 & Higher Covers PCB Revisions: F 1 TABLE OF CONTENTS Specifications 3 General Information 4 Hardware Installation 5 Hardware Alignment 6 Jumper Settings 6 Controls & Indicators 7 Operation 7 Theory of Operation 8 Technical Notes 8 Contact Information 8 2 SPECIFICATIONS Voltage/Current: Operating Voltage: Operating Current: LED Current: Fuse Protection Auto Resettable with surge suppression: Inputs: Audio Input: Frequency Range: Notch Filter Depth: COR Input (PTT) 180-1600 mVpp 300-3000 Hz 45 db relative to 1 KHz Logic Low Dedicated Phone Line: Output Level Output Impedance Fuse Protection Auto Resettable with surge suppression: Mechanical: Dimensions: Operating Temp: -20 to 10 dB pot adjustable 600 Ohm 300 mA 1.45" H x 6” W x 7.6" L 0° to +50° C Default Control Tone Frequencies & Timing: Function Tone High-Level Guard Low-Level Guard F1 13-18 VDC 75 mA 4 mA 300 mA Frequency 2175 Hz 2175 Hz 1950 Hz Level & Duration 5 dBm for 120 msec -20 dBm continuous 0 dBm for 40 msec 3 GENERAL INFORMATION Midian’s TRE-10 is a tone remote encoder that encodes high-level 2175 Hz, followed by the F1 function tone and finally by continuous low-level 2175 Hz keying tone. Midian’s TRE-10 can be used to control Midian’s tone remote adaptors (TTC-1 and TTC-2) or another manufacturer’s tone remote adaptors that use EIA standard function and keying tones. The TRE-10 has an external mic input and an adjustable mic amplifier followed by an optional compressor and 2175 Hz notch filter. The voice and tones are then fed into an adjustable 600 ohm balanced line amp for connecting to a dedicated line or microwave to activate a tone remote adaptor. 4 HARDWARE INSTALLATION Be certain to follow standard anti-static procedures when handling any of Midian’s products. Getting Started: The TRE-10 has a number of adjustment potentiometers and configuration jumpers. These have been adjusted and configured at the factory for a typical installation. However, audio levels should be verified and adjusted (if necessary) at the time of installation. Also, the configuration jumpers should be inspected prior to installation to verify that they are in the right configuration. Jumper descriptions appear in the jumper settings section with a quick reference table. Line Interface The line interface connector CON7 is a 10-pin RJ-45 style connector on the left side of the back panel. 1 Diagram 3.1 2-Wire Operation: For a 2-wire installation, simply connect pins 5 and 6 (red and green) to the dedicated line. A standard 4 conductor phone cable will function properly in connector CON7. See table 3.1. Table 3.1 Pin CON7-4 CON7-5 CON7-6 CON7-7 Color Black Red Green Yellow 2-Wire Not Used Line 1 Line 1 Not Used Radio Interface: CON6 is located in the middle of the back panel and are used to connect the TRE-10 to the base station radio or repeater. The following are the connection points: CON6-2 (Orange): COR Input: In the TRE-10 this input acts as a PTT input. This input when taken to ground causes the TRE-10 to generate the keying tones and allows voice audio to pass through the unit. CON6-6 (Red): Battery (13-18 VDC): Connect this lead to 13-18 VDC from the base station/repeater. CON6-7 (Black): Ground: Connect this lead to the base station’s or repeater’s ground. CON6-8 (White): RX Audio Input: In the TRE-10 this input is the mic audio input. This input does not have a bias supply for a mic element. The audio presented here should be from a dynamic mic or a carbon equivalent or electrets with its own amplifier/power source. 5 HARDWARE ALIGNMENT The alignments are preset at the factory and should not need to be adjusted during installation. However, if an adjustment is needed please follow the procedures below. Although the titles below read RX to match the schematics and pictorials they are really transmit procedures. RX Input Line Level Adjustment: 1. With mic audio at normal voice level, adjust RP3 while monitoring TP1 with an oscilloscope, so that TP1 shows around 700 mV p-p. Also verify that JP22 Pin 2 shows around 180 mV p-p. RX Notch Bandpass Alignment: 1. Generate the low-level guard tone (2175 Hz at -20 dBm) with a tone generator. 2. Monitor TP2 with a Sinadder. The audio level of the Sinadder should be adjusted to hear the tone. 3. Adjust RP5 until the tone is at it’s most diminished point. 4. Adjust RP4 until the tone fully diminishes. If this step does not get rid of the tone go to step 5. 5. Repeat steps 3 and 4 until no tone is heard. RX Output Line Level Adjustment: 1. Take the COR Input to ground to allow voice audio to pass and turn PWM pot RP2 fully counterclockwise. 2. With mic audio present on the RX input adjust line driver pot RP6 while monitoring the line out with a line level meter and set for approximately -10 dB on average voice or -5 dB on peak voice. 3. Remove voice audio and adjust PWM pot RP2 clockwise until -20 dB is reached for the low level guard tone. Note: If a line level meter is not available for the level adjustment use an AC voltmeter with a DB scale. An AC voltmeter would not be set up for balanced 600 ohm audio, but it will provide a close measurement. JUMPER SETTINGS The following table shows the default jumper settings and their function: Jumper Number JP22 JP36 JP40 Default Position 1-2 In – 2-3 Out 1-2 In 1-2 In Description AGC Compander Circuit bypass jumper Termination jumper Termination jumper 6 CONTROLS & INDICATORS Power LED: This red LED indicates that power is applied to the unit. COR LED: This red LED indicates when the COR input is taken to ground, which in turns controls the PTT. Tone LED: This red LED indicates the TRE-10 is generating the keying tone. OPERATION Transmit: Upon the COR input being taken to ground the TRE-10 will generate the high-level 2175 Hz tone for 120 msec, followed by 40 msec of the F1 function tone (1950 Hz) and then the low-level 2175 Hz continuously until the COR input is released from ground. During this time the TRE-10 will pass the audio from the Mic Audio Input through the 600-ohm balanced line driver to the dedicated phone line, telemetry link or microwave. 7 THEORY OF OPERATION TX Audio Path: For this section please refer to the top half of the schematic which is normally the receive path. For this product the RX patch is the TX path. TX audio from an external mic audio input goes through hipass filter C39 and RP3. RP3 also serves as the TX input level adjustment pot. This audio is then fed into amplifier U8:2 which acts as low pass filter for noise above 3 KHz. Mic audio from U8:2 is fed into the compression amplifier U7A and U8:1 or it can be bypassed around the compressor using JP22. From JP22 it goes to C56. From there it passes through the notch filter to remove 2175 Hz voice components. Voice audio from the notch filter is input into the audio mixer U8:4. Out of the mixer tone and voice are then input into the line amplifier (U20:1) which drives T1. The line amplifier has an enable transistor that is controlled by the microprocessor. The micro can respond to the PTT input on the COR input and enable this amplifier. Power Supply: 13-18 VDC is input on the red wire of the Radio Interface connector and then into RF inductor L7 into a resettable polyswitch. D22 is a polarity protection diode that is designed to pop the resettable fuse if power is hooked up backwards. C31 and C34 act as RF bypass caps after the RF inductor L7. U6 acts as a 12 VDC regulator. Its output is fed to all of the analog circuitry and U14B acts a pseudo-ground reference at approximately 6 VDC. The 12 VDC on the analog page schematic is also fed over to U4 which is a 5 VDC regulator shown on the digital page to run the microprocessor and the optional encoders/decodes and serial chips. Microprocessor Schematic: The microprocessor utilizes a 16 MHz clock and is a flashable part. On the right hand side of the microprocessor page we have all of the LED functions shown. See the Control and Indicators section. This product includes a pulse width modulator output from the microprocessor that is fed into emitter follower Q3 and output on level pot RP2. This is fed into the TX audio path for transmitting high-level guard, low level guard and function tones. TECHNICAL NOTES No technical notes are available at this time. MIDIAN CONTACT INFORMATION Midian Electronics Inc. 2302 East 22nd Street Tucson, Arizona 85713 USA Orders: 1-800-MIDIANS Phone: 520-884-7981 Fax: 520-884-0422 E-mail: [email protected] Web: www.midians.com 8 3 18 PB2 19 PB3 STD 17 14 PT7 C160 10u POWER LED +12V C193 .1u TP24 R340 4.7K PP4 80 PAD5 B PAD6 FUTURE USE R230 2.2K K1 PA4 45 1K R38 4.7K R17 2.2K FUTURE USE 1 D32:1 2 1 SCR_MODE_OUT GUARD_HOLD_TONE 6 PT1 RX_LINE_ENABLE_DISABLE 5 PT0 79 PP5 TX_IN_ENABLE_DISABLE 1 PP3 FUNCTION_TONE TELCO_RECV_MUTE 2 PP2 78 PP7 SCR_MODE_IN 37 PE3 TX_OUTPUT_ENABLE_DISABLE ANTIVOX 56 PAD05 39 PE1 HLG_DET 21 PB5 VOX 47K D35 D36 SD1 SD1 R292 1K R317 0R C20 R21 560p 47K D37 SD1 R293 1K R318 0R 9 8 9 +12V 7 10 8 R25 10K 1 JP41 ) 2 C23 560p D39 SD1 +5V R27 10K 1 ) JP42 2 C24 560p D40 SD1 +5V R29 10K R361 0R D 1 JP43 ) 2 C25 560p D41 SD1 +5V R31 10K 1 ) JP44 2 SEE DOCUMENT 7503-PROGCABLE FOR BOARD REV INFORMATION MIDIA ELECTROICS, IC. DW BY: DESIG: REV: CJS 5 1 J2 * = NOT INSTALLED DATE: 2005-01-17 2 GPC 2010-10-18 1 APPR REV TRE-10 SCHEMATIC COPYRIGHT © 2009 F1 SHEET 1 of 2 DOCUMET AME C26 560p D42 51 PAD00 PM2 73 F4 LED D16 R26 100K 52 PAD01 PM3 72 F5 LED D17 R28 100K R30 100K R210 10K PM5 70 PROG_OUT 63 RXD0 64 TXD0 F7 LED D19 PJ6 69 +5V PROG_IN F6 LED D18 54 PAD03 SD1 R229 1K PM4 71 53 PAD02 F8 LED D20 ihs7503f1_tre10 +5V R219 0R PROJECT UMBER R235 * C138 .22u C137 .22u PJ7 68 32 XFC 6 R24 100K C134 .1u C135 * R213 * F9 LED D21 C136 * JP14 F10 LED - F1/F2 2 3 4 C1- 3 9 F1 10 JP15 12 + RX_INPUT TX_MOD_INPUT R50 10K 1 LOCATED ON ANALOG PAGE 2 3 F2 7 +5V 8 6 JP20 WIRE SJ9 3 SJ10 1 5 2 3 C SJ11 DF2E-DC12V R52 100K R53 4.7K COR PAD9 ADC INPUT FUTURE USE 1 Q9 BSS R57 R114 100K 1K 2 Q10 BSS R59 R115 100K 1K 3 Q11 BSS 4 Q12 BSS 6 9 Q13 BSS 10 R65 R224 100K D Q14 BSS R67 SEE DOCUMENT 7053-INTFCABLE FOR WIRE COLOR DESIGNATIONS R225 100K 1K Q15 BSS R69 R226 100K 1K Q16 BSS R71 1K 5 CON2 RJ45-10 7 8 R223 100K 1K 2 4 R63 1K 1 TXD 5 R222 100K 1K RXD 3 R61 C155 * 7503 8 PTT +12V D12:1 A4 3 Q7 B25 R113 100K F3 LED CON6 RJ45-10 SPARE R349 10K D15 31 VDDPLL 7 +5V PM1 74 F14 LED R316 100K 49 VDD2 5 R320 0R 9 VDD1 4 6 D31 R295 1K 61 VRL 5 C22 R23 560p 47K 60 VRH 3 44 PA3 6 RADIO INTERFACE MONITOR R55 10K D14 76 VSSX 2 4 12 1 2 +5V Q8 B25 PM0 75 50 VSS2 62 VSSA 3 SCR_COR 43 PA2 F13 LED R315 100K 5 F1 +12V PE0 40 C197 .47u 4 TX OUT 10 R51 22K R54 100K B SJ12 1K R348 100K PAD04 55 3 MONITOR RX IN DF2E-DC12V R49 +5V R291 100K SJ6 SJ7 SJ8 3 1 Q34 BSS 36 TEST 10 VSS1 CON3 RJ45-10 1 D13 2 SPARE 7 2 1K F2 LED 1 +13_TO_18_VDC K3 PA7 48 28 VSSR 33 VSSPLL SEE DOCUMENT 7503-INTFCABLE FOR WIRE COLOR DESGINATIONS 2 JP13 R48 4.7K F2 COR 8 5 Q6 B25 2 3 10 3 1 1 7 +12V R47 F1 LED F12 LED R314 100K D30 R319 0R D11 42 PA1 D29 R294 1K PA6 47 +5V 11 1 R46 4.7K R347 100K JP9 12 + ) JP8 6 TELEMETRY_PTT MC9S12D64CFUE R44 10K D8:1 A4 MONITOR/ CARRIER LED A6 F11 LED R313 100K 10 C21 R22 560p 47K D38 SD1 U16 41 PA0 D28 +5V C19 560p D32:2 3 1 PB4 20 MONITOR R43 1K D9 A6 11 PT4 3 PP1 DUPLEX_PARALLEL_CROSSOVER SEE DOCUMENT 7503-INTFCABLE FOR WIRE COLOR DESIGNATIONS PTT +12V - 3 Q5 B25 2 SJ5 K2 1K 1 2 3 SJ3 DF2E-DC12V R42 4.7K SJ2 1 C146 .1u SJ4 5 +5V SYNC/TONE LED 57 PAD06 38 PE2 VOICE_STORE TELCO_FEEDBACK_DISABLE 3 PA5 46 2 3 C145 .1u 1 2 GND 15 V- 6 8 R45 1K D10 1 3 U17 NOTE7 10 +12V 6 R41 RING LED PB6 22 SECONDARY_RX_LINE_EN_DE ) RING D7 26 PE5 R18 2.2K 3 Q4 B25 1K PT3 8 12 PT5 27 PE4 JP4 7 JP1 R39 TRANSMIT LED 23 PB7 1 2 SJ1 10K 12 + SCR_PTT_IN D6 +5V R20 16 VCC 2 V+ +12V RELAYS TTC-1 ONLY R40 PTT - D5:1 A4 PT2 7 R339 100K PAD8 R37 HOOK LED 13 PT6 R337 100K 1 HOOK D4 R335 100K Q38 BSS C147 .1u SCR_OFF_HOOK R334 * R338 * +5V R306 4.7K TXD1 66 58 PAD07 R336 * OPTIONAL SERIAL INTERFACE R305 100K R331 100K Q41 BSS PWM_VOICE_1 5 C2- +5V C198 .47u R19 * PWM_VOICE C148 10u RXD1 65 +5V FUTURE USE A 1K RP1 T2_IN 10 +5V 24 PE7 FUTURE USE TP25 C144 .1u PAD1 PAD2 PAD4 R346 560R 4 PP0 25 PE6 R333 10K - 7 5 +U19:2 LM324 C196 .0033µ R345 4.7K C194 .033µ R164 2.2K ADC INPUT PAD10 FUTURE USE 6 R2_OUT 9 C1+ 1 C201 .012µ R328 100K R332 * C C192 .0047µ C195 .033µ R344 4.7K R360 0R R14 4.7K R321 4.7K C186 .0047µ R343 100 - 1 3 +U19:1 LM324 TP12 C185 .015µ R322 4.7K 2 R342 4.7K 8 R2_IN 4 C2+ - 13 U19:4 12 + LM324 C191 .015µ R341 4.7K C190 .012µ R330 100K Q37 BSS C131 22p R287 100K 14 C187 .033µ R32 1K D3 C29 2.2u 7 T2_OUT R324 4.7K C189 .0033µ Q3 14 Q4 15 C154 10u +5V C133 22p T1_IN 11 R323 100 5 C28 560p +5V ) Q36 BSS C188 .033µ R325 4.7K 6 6 IC1 U4 OUT2 2 7 IC2 2954IM GND 4 +5V R1_OUT 12 R327 22R R329 330R RP2 1K 8 16 PB0 17 PB1 +5V R356 2R 13 R1_IN - 9 U19:3 10 + LM324 R326 560R 4 VREF 1 IN+ +5V C4 .47u Q1 12 Q2 13 16 NC2 18 ESt R285 100K 3 RESET 5 OUT1 1 14 T1_OUT C5 .1u R8 470K D2:1 A4 R6 100K Q1 BSS PWM_2175 R7 1.2M VCC 20 TOE 11 R214 0R 8 IN1 3 IN2 4 C8 .1u R5 1K 5 INH 10 GND 6 PWDN D1 DTMF LED U1 8870 7 NC1 19 St/GT +5V 4 C27 .1u 6 11 +5V 3 GS 2 IN- 1 R135 1K VDDR 29 DTMF_DECODER_2 R2 1M JP31 2 5 C132 .1u +5V +12V RESET 30 R257 62K C10 * R12 1M EXTAL 34 C199 .47u 4 R136 2.2K GND POWER OSC1 8 R1 470K R3 4.7M OSC2 9 C84 .47u Y2 16.0M C9 * GND POWER DTMF_DECODER_1 TP13 C3 22p BKGD 15 OPTIONAL DTMF ENCODER/ DECODER A Y1 3.58MHz C2 22p VDDX 77 VREGEN 67 VDDA 59 2 XTAL 35 1 6 1 2 3 4 1 F1 300 mA Resettable Fuse TZ1 * TP17 R351 0R VOUT 3 3 RECT_IN +12V C48 1u R85 330K U6 MIC2940A C35 4.7u C153 .47u 4 ATK_CAP C36 .1u VAN_A RX AMP JUMPER NO SJ15 R82 10K C40 .22u C43 100p C49 .1u 6 R88 33K - 7 11 C37 560p C38 4.7u ( VOICE_STORE R354 10K R259 1K R117 4.7K Q22 B25 R160 8.2K LM324 - 13 14 U10:4 12 + R355 100K Q40 BSS +12V C76 * +12V C127 .1u TP11 TP5 R126 330K 4 U10:1 3 + LM324 11 R221 10K +5V R124 1K VAN_A C79 1000p NPO DUPLEX CROSSOVER LEVEL R108 100K RX_LINE_ENABLE_DISABLE JP45 WIRE 9 R137 47K 9 R134 100K 13 - 14 LMC6036 - 7 U11:4 12 + LMC6036 U11:3 10 + 6 R139 100K DUPLEX_PARALLEL_CROSSOVER R120 47K R91 100K R99 47K Q18 BSS R98 100K TELCO_FEEDBACK_DISABLE R145 24K R183 1.2M R185 560K VAN_A +5V C101 1u 3 INDUCTOR 9 VDD 6 2 SHUTDOWN 8 BYPASS GND 4 + C176 .01u TP21 Approx 1V Middle High Lvl Guard 7 8 9 10 300 mA Resettable Fuse RX LINE LEVEL 2 WIRE RX/TX 4 WIRE RX ONLY C174 470u R304 * TELEMETRY RADIO RECV AUDIO GND TAB 5 C173 10u - R297 * TELEMETRY_PTT Q35 * MICROWAVE (M LEAD) J1 1 VAN_A TTC-1 TELEMETRY RADIO OPTION B LM324 - 13 14 U12:4 12 + Q28 Y25 D34 SD1 R279 22K C200 1u LM324 - 6 7 U12:2 5 + R188 1.2M R186 1.8M R190 1M C102 * - 2 U11:1 3 + LMC6036 R262 10K +5V Q29 Y25 C103 1u 1 + 3 R194 47K U12:1 2 R189 0R RP17 1M RP12 10K R191 470K RP9 1K R260 1K 14 - R172 51R TTC-1 POTS OPTION R83 100K 13 U15:4 12 + R166 10K1% SCR_TX_IN C112 10u U14:2 5 + LM324 R153 VAN_A 1K Approx 3.7Vpp @-10dbm@1Kc RP8 at center TX_OUTPUT_ENABLE_DISABLE C89 .22u SJ14 R156 4.7K R162 1K R167 47K C96 .047u LM660 - 2 1 U15:1 3 + R298 * R290 * R173 10K1% R155 100K 14 REC_CAP 2 SCR_TX_OUT Q17 BSS R205 100K 4 5 JP34 6 C 7 JP35 SCR_MODE_IN 9 10 12 13 SCR_RX_OUT 22 SCR_RX_IN 23 R175 R174 30K 10K1% - R177 10K1% 6 R256 1K R261 1K R238 3.3K JP26 C159 .22u 1 G_OUT 11 R197 10K R178 10K1% R218 * LM324 8 TP10 R201 100K C119 .1u R202 33K - 13 U14:4 12 + 2 R232 1K - R207 15K 9 C122 .47u R208 15K U14:3 10 + C125 .001u JP37 2 1 RP13 10K Approx. 1.2Vpp @-20dbm Low Lvl Guard RP13 at center 5 3 T2 OPTION J R206 100K C170 .001u 2KV TZ8 P0300 OPTION J TZ10 P0300 OPTION J JP38 R234 330R R209 0R TZ9 P0300 OPTION J 1 2 VAN_A TX_IN_ENABLE_DISABLE C116 1u L6 6 S INDUCTOR R199 1K C115 47u LM324 R233 1K 1 R211 330R GUARD_FUNCTION R204 750K VAN_A F7 300mA Resettable Fuse OPTION J JP27 3 P R180 10K 14 2 R203 330K R198 10K + 30 C123 .1u 1 C120 68p 2 VAN_A R169 10K1% C117 .1u TRK_TRIM 15 26 29 C114 100p 3 U15:2 5 + +5V C124 .001u L5 4 C169 .001u 2KV F4 INDUCTOR 300 mA Resettable Fuse OPTION J OPTIONAL 4 WIRE TX ONLY D Q27 BSS R179 10K1% R272 0R GUARD/HOLD TONE NOTCH NULL * = NOT INSTALLED Q25 BSS MIDIA ELECTROICS, IC. 2 3 SCR_TX_IN TX AMP 3 KC LOWPASS THD_TRIM 10 8 GND 220mvpp@-20dbm Low Lvl Guard LM660 7 RP10 5K VAN_A 1 300 Hz HIGHPASS C113 .22u R176 33K VAN_A LM660 - 9 8 U15:3 10 + TP9 SCR_PTT_IN SCR_MODE_OUT ATK_CAP 12 9 G_IN SA572 VAN_A R154 22K R268 470R C118 .1u R200 3.3K RECT_IN 13 U7:2 4 R165 10K1% YEL 25 COMPANDOR 16 VCC (0805) 11 LM660 GRN SCR_COR +12V C98 +12V .1u (0805) RED CON1 TTC OPTION G TTC OPTION H VOICE SCRAMBLER C163 .1u C121 .1u (1206) R149 15K C88 .22u 300 mA Resettable Fuse OPTION C BLK SCR_OFF_HOOK R170 10K1% R150 4.7K 6 INDUCTOR 4 C168 .001u 2KV DTMF_DECODER_1 C93 .01u - L4 RING 2 2 3 TZ7 P3100 OPTION C F6 C111 .001u 1 C167 .001u 2KV TZ5 P3100 OPTION C GUARD/HOLD TONE NOTCH/ BANDPASS FILTER PWM_VOICE 3 6 RCV - LM324 TZ6 P3100 OPTION C 4 OFFHK C108 .47u POTS RJ11-4 CON4 INDUCTOR VAN_A TP6 Approx 600mvpp @-20dbm Low Lvl Guard Approx 750mvpp TP8 @-20dbm@1Kc C107 .47u F3 300 mA Resettable Fuse OPTION C L3 TIP 1 U13 CH1847 OPTION C 5 RI HOOK TP23 R171 2.2K SCR_TX_OUT C109 .1u C110 .001u R143 4.7K C85 .47u R311 1K 7 XMIT(-) RING R187 390K R142 470K (MULTITURN) R151 620R C150 .47u RP11 10K R263 7.5K TELCO_RECV_MUTE C94 560p C86 100p +5V +5V C162 .47u R140 VAN_A 470K R133 470R TX OUTPUT LEVEL C106 .47u R193 33K TP14 +12V C128 .1u LMC6036 C175 .47u R280 470K CON7 RJ45-10 6 C166 .001u 2KV F5 L2 4 R278 10R U20:2 LM4950 A 4 750K R192 R184 0R R182 390K VOX (0805) 1 C72 .001u R106 330R 8 10 +U8:3 LM324 Q30 BSS RP16 1M LM324 - 9 8 U12:3 10 + GUARD_FUNCTION TX NOTCH BANDPASS TUNING 2000 TO 3100 HZ. TP7 7 R277 100K C183 470p C99 .01u R144 47K R181 1.8M TELCO PTT 1 U11:2 5 + VAN_A D25 SB1 R281 0R 7 2 +12V R148 120K C100 * TP6 Approx 5.8Vpp @+10dbm High Lvl Guard C87 2.2u TZ2 P0300 TZ4 P0300 +12V NetR14 5_2 VAN_A R282 36K R152 22K Q20 BSS C158 .47u RP15 100K 2000 TO 3100 HZ. C81 1000p NPO TP6 R132 43K 2 C178 .01u C129 +5V .1u R147 15K - TP21 1 5 T1 C181 .22u RP7 5K R130 47K R284 100K BASE STATION TX_MOD_INPUT SEE MCU PAGE 2 3 5 JP36 TP16 400mvpp @1Kc ANTIVOX C75 .01u 8 U10:3 10 + LM324 R146 1M +12V 8 JP25 - U20:3 TP15 - Approx 1Vpp@-20dbm LowLvl Guard R138 3.9K D23:1 A7 1 2 R131 10K 2 LO-Z HI-Z JUMPER )JP40 PAD3 SPARE C165 .001u 2KV TZ3 P0300 1 R276 100K R123 430K TP22 D23:2 A7 3 R129 1M LO-Z JUMP 2&3 HI-Z JUMP 1&2 1 2 C71 .001u 42TU016RC C157 .1u 1 3 U18:1 + LM660 MOBILE PRIORITY 1 RP8 100K 2 1 INDUCTOR 3 LM4950 GUARD/HOLD TONE BANDPASS FILTER +5V R283 100K S R289 330R R101 0R R97 10K R251 1K - C77 47p LM324 - 6 7 U10:2 5 + R119 47K R220 10K GUARD/HOLD TONE DETECTION C177 .1u - F2 300 mA Resettable Fuse L1 6 P EARTH CHASSIS GROUND R125 330K R121 43K D C180 .001u 1 LM4950 1 U20:1 R307 0R C139 150p R118 1M HLG_DET R274 62K NetC171_1 9 PWM_VOICE R308 47K D24:2 A7 1 3 TP19 FUNCTION_TONE Q33 B25 R273 39K RP6 1K C179 * C63 820p C61 1u D24:1 A7 2 FUNCTION TONE DETECTION 1 R96 10K C171 .033u C59 18K R95 6.8K SJ13 SECONDARY_RX_LINE_EN_DE R116 22K Q23 B25 VAN_A R100 56K R141 150R 1 B - +12V R248 VAN_A 10K1% SCR_RX_IN +5V R128 4.7K 3 RP4 5K 2 C56 2.2u R309 1K 1 2 C60 .47u R241 VAN_A 47K R244 10K1% JP22 R107 1K R288 0R TP1 VAN_A GUARD_HOLD_TONE R265 1K C69 10u R275 200K R312 0R TP2 R243 * C161 .1u R94 10K PWM_VOICE_1 10 U18:3 + LM660 R247 10K1% R296 * approx. 700mvp-p LM324 C44 4.7u R127 22K 8 R231 330R - 14 12 +U8:4 LM324 D33 * R303 * TELEMETRY RADIO MODULATION VCC 8 - - 13 TP4 C172 47p 4 LM324 1 3 U8:1 + 9 SCR_RX_OUT C184 .47u 6 VOLTS ANALOG REFERENCE 7 C58 .47u 11 4 TP18 C approx. 180mvpp@1Kc - DTMF_DECODER_2 R352 2R R246 10K1% VAN_A R81 1K C104 .1u 1 3 +U14:1 LM324 VAN_A TP20 C51 47u 2 - approx. 8.8Vpp@1Kc TP3 C64 * R353 10K PWM_2175 Ne tR81_1 +12V TTC-1 ONLY 6 5 U18:2 + LM660 R253 10K1% R240 30K R242 3.3K VAN_A C52 1u 5 +U8:2 R73 9.1K R239 10K1% R90 10K + R76 47K +12V C126 .1u LM660 R237 10K1% R264 1K R310 1K R245 10K1% R250 10K1% C182 1u TELEMETRY RADIO OPTIONAL TP4 should be approx 540mvp-p. RX LINE AMP 9 XMIT(+) RP3 1K R74 10K 14 12 U18:4 + GND 8 R89 10K R87 100K RX INPUT LEVEL C39 .47u - (0805) RX LINE LEVEL ) BASE STATION RX_INPUT SEE MCU PAGE C73 .47u G_IN 7 C50 100p C42 .001u 2 13 C55 .22u 1 TRK_TRIM R86 1K C203 560p 3 KC LOPASS SHORT SJ15 OR DE-EMPHASIS OPEN SJ15 R72 10K REC_CAP 2 R254 2.2K +VIN Transmitting to Remotes at -10 db AUDIO MIXER C156 .01u NPO (MULTITURN) R249 33K 4 C202 .001u R255 470R (0805) (1206) C54 10u 11 R357 0R RP5 1K (0805) C97 .047u 6 THD_TRIM +13_TO_18_VDC +12V C53 1u VCC 16 5 G_OUT U7:1 SA572 R252 51R +12V COMPANDOR R84 3.3K 10 GND C32 470u C47 .1u 4 + C152 .47u L8 INDUCTOR A 6 11 R358 0R 1 VIN 2 GND L7 INDUCTOR R350 0R C151 .47u 2 1 D22 1N4001 3 C31 560p 4 C34 .001u 11 S1 3 2 5 RX NOTCH BANDPASS TUNING 2000 TO 3100 HZ. +VIN 3 4 5 DATE: 2005-01-17 DW BY: DESIG: REV: CJS GPC 2010-10-18 APPR REV TRE-10 SCHEMATIC COPYRIGHT © 2009 6 F1 SHEET 2 of 2 DOCUMET AME ihs7503f1_tre10 PROJECT UMBER 7503