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There are currently no product reviews.
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Happy to find finally a schematic for this amplifier. The schematic is of good quality, the pcb layout is useless: all is black. Never the less, it is very easy to find the components on the board using the schematics.
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Hard to find manual was ready the next day. Scans were very legible (including schematics). All the essential parts of the service manual were present (adjustment procedure, schematics, and parts list). It would have been nice if the rest of the manual was included (disassembly procedure, theory of operation, etc.).
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The Service Manual for the Kenwood KR-V55R provided by owner-manuals.com was as described/advertised. The contents provided the necessary information to effect a diagnosis of the unit. The schematics above all else was instrumental in tracing the the signal flow from component to component.
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This manual was the factory original. Excellent value and contained all the details I needed. Easy dowwnload provided the information when I needed it.
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Impeccable, document très complet. Perfect, i get all i need. All schematic are correct. Thanks
KDC-1020/S/119/S
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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