Transcript
DUAL TV MODULATOR MD-21 The MD-21 modulator includes two TV modulators in one device. MD-21 is compatible with CCTV security cameras and all home audio-visual devices such as satellite receivers and DVD players. The MD-21 takes AUDIO and VIDEO signals from two sources and convert them into high-frequency TV signals on two individually set channels. This signal can by connected to one or more TVs using a coaxial antenna cable. In this way one cable can be used to transmit analog (broadcast or cable) television together with signals from DVD players, satellite receivers or security cameras. It is also possible to send this signal to all TV sets in your house. By choosing an appropriate channel on the TV you can watch broadcast television or any of the additional devices connected through the modulators.
CONNECTION EXAMPLES power supply tuner TV SAT
TV set
DVD player
External aerial Modulator powered directly with a 9-12V/150mA power adapter (included) power supply CCTV securitiy cameras
power supply injector
12V VIDEO
TV set
12V VIDEO
Modulator and cameras powered using a DC power supply injector (separator) connected near the TV set. This way up to 200 mA can be supplied to both cameras.
TECHNICAL INFORMATION power supply the range of retuning OIRT channels the range of retuning CCIR channels RF output level (RF OUT) RF input amplification (RF IN) sound subcarrier frequency video input level audio input level modulation RF output harmonics filter connecting power through RF-OUT socket test pattern generator
9 - 12 V DC/ 150mA 1 - 12, 21 - 69, S1 - S38 2 - 12, 21 -71, S1 - S41 82 dBuV/75W (F-conn. female) 0 dB (F conn. female) 5,5 MHz / 6,5 MHz 1V/75W (RCA female) 775mV (RCA female) dual side band no optional yes
CONFIGURATION INSTRUCTIONS CHANNEL SWITCHING After applying power the display lights up and shows the current TV channel number for A circuit. To change the currently displayed circuit momentarily press one of the buttons ("
"). To change the TV channel press and hold the button corresponding to one of the circuits for about 2 seconds. When display starts blinking you can change the channel up and down using the "" buttons. After 5 seconds without any button activity the pulsing stops and the displayed channel is remembered in non-volatile memory. You can then proceed to set the channel for the second circuit. CHOOSING CHANNEL ALLOCATION STANDARD The modulator can work with two popular channel allocation standards: OIRT and CCIR (see tables on the next page). To switch to another standard disconnect the power supply, push both "" buttons together and reapply power while holding them. The currently active system will be indicated on the display: "oi" (OIRT) or "cc" (CCIR). Use the buttons to change it and then cycle the power again to return to normal operating mode. CHOOSING SOUND SUBCARRIER Connect the power supply to the modulator while holding the "B>" button. You can then set the sound subcarrier frequency to be either 5.5 or 6.5 MHz. To return to normal operation disconnect and then reapply power to the device without holding any buttons. TEST SIGNAL To switch to the test signal generation mode connect the power supply to the modulator while holding the "B>" button. To acknowledge switching to the test signal mode the display will show a pattern of four vertical bars "||||" for a few seconds. In this mode the modulated output does not depend on the input signal but consists of two white vertical bars accompanied by a 1kHz acoustic tone. You can change the modulator output channel using the usual buttons and verify proper configuration of modulator with a particular TV set. You can leave the test mode by disconnecting the power supply. ENERGY SAVING To conserve energy the display goes to sleep after 1 second of inactivity (this only happens when in normal mode). Pressing any key will bring the display back on and display the currently configured channel. CONNECTING POWER THROUGH RF-OUT To power the modulator using a DC injector connected to the remote end of the coaxial cable you have to switch a jumper inside the enclosure. To do this first remove the back cover of the device and then adjust the jumper according to the diagram you will find inside. You can then use the DC9-12V socket to supply power to CCTV cameras connected to the modulator. WARNING: Please note that in this case the maximum total current draw from this socket must be kept below 200 mA.
WARRANTY Serial number / date of production
........................................................
Date of retail
........................................................
Sales assistant’s signature and stamp
........................................................
SAT-SERWIS s.c. Z.P.H.U. 91-403 £ÓD•, ul. Tamka 16 www.satserwis.pl
WARRANTY CONDITIONS 1. The producer is obliged to repair all faultiest and damages free of charge within the warranty period i.e. 12 months from the date of purchase but no longer than 24 months from the date of production. 2. The waiting period for repair should not be exceeded than 14 working days from the date of delivering the device to repair. 3. The conditions of accepting the device to repair : -The warranty of the device must be legibly and correctly filled. -The detailed description of the reason of complaining must be enclosed. 4. The warranty does not include : -Defects arisen because of external reasons for example : atmospheric phenomenon, contamination, mechanical, thermal or chemical defects, wrong usage, wrong power supply or installation not compatible with original instruction. -The device which components and construction were changed or which was tried to be repaired by unauthorised person or when the warranty sticker is damaged. 5. This warranty card is the only base to realise warranty.
I accept the conditions ot the warranty
........................................ Client’s signature
This table presents frequencies of TV channels for modulators: MD-21, MD-5 and MD-5 stereo in the CCIR system channel CH:02 CH:03 CH:04 CH:05 CH:06 CH:07 CH:08 CH:09 CH:10 CH:11 CH:12 CH:21 CH:22 CH:23 CH:24 CH:25 CH:26 CH:27 CH:28 CH:29 CH:30 CH:31 CH:32 CH:33 CH:34 CH:35 CH:36 CH:37 CH:38 CH:39 CH:40 CH:41 CH:42 CH:43 CH:44 CH:45 CH:46 CH:47 CH:48 CH:49 CH:50 CH:51 CH:52 CH:53 CH:54 CH:55 CH:56 CH:57 CH:58 CH:59 CH:60 CH:61
MHz 48.25 55.25 62.25 175.25 182.25 189.25 196.25 203.25 210.25 217.25 224.25 471.25 479.25 487.25 495.25 503.25 511.25 519.25 527.25 535.25 543.25 551.25 559.25 567.25 575.25 583.25 591.25 599.25 607.25 615.25 623.25 631.25 639.25 647.25 655.25 663.25 671.25 679.25 687.25 695.25 703.25 711.25 719.25 727.25 735.25 743.25 751.25 759.25 767.25 775.25 783.25 791.25
CH:62 CH:63 CH:64 CH:65 CH:66 CH:67 CH:68 CH:69 CH:70 CH:71 S:01 S:02 S:03 S:04 S:05 S:06 S:07 S:08 S:09 S:10 S:11 S:12 S:13 S:14 S:15 S:16 S:17 S:18 S:19 S:20 S:21 S:22 S:23 S:24 S:25 S:26 S:27 S:28 S:29 S:30 S:31 S:32 S:33 S:34 S:35 S:36 S:37 S:38 S:39 S:40 S:41
799.25 807.25 815.25 823.25 831.25 839.25 847.25 855.25 863.25 871.25 105.25 112.25 119.25 126.25 133.25 140.25 147.25 154.25 161.25 168.25 231.25 238.25 245.25 252.25 259.25 266.25 273.25 280.25 287.25 294.25 303.25 311.25 319.25 327.25 335.25 343.25 351.25 359.25 367.25 375.25 383.25 391.25 399.25 407.25 415.25 423.25 431.25 439.25 447.25 455.25 463.25
CAUTION! The number of cable television canals (marked as “S:”) are displayed with extra dot.
This table presents frequencies of TV channels for modulators: MD-21, MD-5 and MD-5 stereo in the OIRT system channel CH:01 CH:02 CH:03 CH:04 CH:05 CH:06 CH:07 CH:08 CH:09 CH:10 CH:11 CH:12 CH:21 CH:22 CH:23 CH:24 CH:25 CH:26 CH:27 CH:28 CH:29 CH:30 CH:31 CH:32 CH:33 CH:34 CH:35 CH:36 CH:37 CH:38 CH:39 CH:40 CH:41 CH:42 CH:43 CH:44 CH:45 CH:46 CH:47 CH:48 CH:49 CH:50 CH:51 CH:52 CH:53 CH:54 CH:55 CH:56 CH:57 CH:58 CH:59 CH:60
MHz 49.75 59.25 77.25 85.25 93.25 175.25 183.25 191.25 199.25 207.25 215.25 223.25 471.25 479.25 487.25 495.25 503.25 511.25 519.25 527.25 535.25 543.25 551.25 559.25 567.25 575.25 583.25 591.25 599.25 607.25 615.25 623.25 631.25 639.25 647.25 655.25 663.25 671.25 679.25 687.25 695.25 703.25 711.25 719.25 727.25 735.25 743.25 751.25 759.25 767.25 775.25 783.25
CH:61 CH:62 CH:63 CH:64 CH:65 CH:66 CH:67 CH:68 CH:69 S:01 S:02 S:03 S:04 S:05 S:06 S:07 S:08 S:09 S:10 S:11 S:12 S:13 S:14 S:15 S:16 S:17 S:18 S:19 S:20 S:21 S:22 S:23 S:24 S:25 S:26 S:27 S:28 S:29 S:30 S:31 S:32 S:33 S:34 S:35 S:36 S:37 S:38
791.25 799.25 807.25 815.25 823.25 831.25 839.25 847.25 855.25 103.25 111.25 119.25 127.25 135.25 143.25 151.25 159.25 167.25 231.25 239.25 247.25 255.25 263.25 271.25 279.25 287.25 295.25 303.25 311.25 319.25 327.25 335.25 343.25 351.25 359.25 367.25 375.25 383.25 391.25 399.25 407.25 415.25 423.25 431.25 439.25 447.25 455.25
CAUTION! The number of cable television canals (marked as “S:”) are displayed with extra dot.
