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Very complete and well reading drawings. Documentation is essential for successful repairs.Good documentation, with all that is necessary. This manual was what I was waiting with all the information necessary for the repairing I need it for. You must buy it if you want to do repairs or simply understand how it works.
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Excellent service manual includes everything is need to repair this radio-caseete, how to disassemble, wiring diagram, all , waiting time until the download was only a few hours. I'm going to buy service manuals from here, are cheap and very good.Thank you.
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Good service manual,i saved from scrapping this deck,is now fully functional.Thanks.
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Found this to be the manual included with the original packinging, was helpfull but did not give any detailed repair instructions.
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Complete service manual, was very helpful in repairing this tapedeck.Thanks.
KDC-2019/V/217/S/219/29MR /2020/3020/4020
MICROCOMPUTER�S TERMINAL DESCRIPTION / ADJUSTMENT
Pin No. 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 Pin Name LOE/LIM SW MOSW LO/EJ M-STOP M-RST M-MUTE RESET REMO R-CLK CH-REQC LOS SW KEY-REQ 12EJE SW Vss0 VDD1 X2 X1 IC XT2 XT1 VDD0 AVREF0 S-METER PHONE NOISE NC AVCONT I/O I O I/O O O I I I I I I I I I I I I I O O Purpose CD mechanism Down & Limit detection CD mechanism motor switching Lo/Ej switching Mechanism COM stop output Mechanism COM reset output Mechanism COM mute input System reset input Remote control input RDS CLOCK 5-wire CH request (CH) Loading SW detection Key input detection 12 cm disc detection GND potential (for ports) Positive power supply (for other parts than ports and analog circuitry) Main system clock oscillation Main system clock oscillation Flash uCOM write Not used Not used (Connected to 5V power supply) Positive power supply (for ports) 5V power supply (A/D converter reference voltage) S-meter input Hi-Z L Hi-Z L H Hi-Z Hi-Z Hi-Z Hi-Z, L when RDS is not available. Hi-Z, L when CH is not available. Hi-Z Hi-Z Hi-Z Hi-Z Processing in STBY Mode
Navigation muting 2.5V or more, Telephone muting 1V or less. Hi-Z, L when TEL is not available. FM noise detection Not used A/D reference voltage control Hi-Z, L when RDS is not available. L L
ADJUSTMENT
No. ITEM INPUT SETTINGS TUNER (RECEIVER) SETTINGS ALIGNMENT POINTS ALIGN FOR
FM SECTION While holding preset �1� key, press and 98.1MHz 1 SD 0 dev 35dBµ (ANT input) AM SECTION While holding preset �1� key, press and 990kHz (1) SD 0% mod 35dBµ (ANT input) TEST MODE : ON TEST MODE : OFF TEST MODE : ON AM 990kHz Preset �1� key, and preset �6� key hold preset �6� key for a few seconds. �1111� is good. �0000� is not good. TEST MODE : ON FM 98.1MHz Preset �1� key, and preset �6� key hold preset �6� key for a few seconds. �1111� is good. �0000� is not good.
While holding the FM key and preset �6� key, reset the unit. Reset the unit.
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