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This is a good quality scan of the service manual which includes an assembly diagram, block diagram, schematic, and parts list. Exactly what is needed to repair my KR-V55R receiver.
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Excellent concise manual. All needed information was included. Typeface and diagrams were clear. Very fair price considering what others are charging. Many thanks
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Response is a little slow- I had to wait 12 hours to receive download link but it says that it may take up to 24hrs.
Manual is old and was not produced in PDF- scanned copy is exellent.
Overall- value for money- I recommend
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Excellent quality and quickly delivered manuals at a fair price. Great care is taken in the reproduction process. Even photographs and highly detailed drawings are as clear as in the original. That cannot be said for some freelance manual copies I have obtained from the web. If you have exhausted your internet search of technical manuals, try Owner-Manuals.com. If they do not have it, I do not think it exists. Perhaps, if requested, they may be able to find it. Their resources are certainly greater than most. Shopping here certainly beats waiting for months or years for the manual you seek to appear in an internet auction or garage sale.
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Very detailed product, also it is a scanning from original, very useful if you have to service this type of amplifier ! Very good product, very hard to find!
DV-502/503/DVF-3050/3550
CIRCUIT DESCRIPTION
2-4 DC Motor Driver : KA8082(ICM21)
Pin No. 1 2 3 4 5 6 7 8 Pin Name GND VO1 VCTL VIN1 VIN2 SVCC PVCC VO2 I/O O I I I O Description Ground Output 1 Motor speed control Input 1 Input 2 Supply voltage (Signal) Supply voltage (Power) Output 2
GND 1 DRIVER OUT VO1 2 PRE DRIVER VCTL 3 TSD LOGIC SWITCH VIN1 4 5 VIN2 BIAS 6 SVCC 7 PVCC 8 V02
Internal Block Diagram
2-5 HEX Inverter (Single Stage) : M74HCU04(IC501)
Pin No. 1,3,5,9 11,13 2,4,6,8 10,12 7 14 Pin Name A0 to A5 Q0 to Q5 GND VCC I/O I O Description Data Inputs Data Outputs Ground Positive Supply Voltage
Truth Table A L H Q H L
2-6 Flash Memory : M29W800AT(IC401)
Pin No. 25, 24~16, 8~1 29,31,33,35 38,40,42,44 30,32,34,36 39,41,43 45 26 28 11 12 15 47 37 27,46 Pin Name A0~A18 DQ0~DQ7 DQ8~DQ14 DQ15 CE QE WE RP RY/BY BYTE VCC VSS I/O I I/O I/O I/O O Description Address Inputs Data Input/Outputs, Command Inputs Data Input/Outputs Data Input/Outputs or Address input Chip Enable Output Enable Write Enable Reset/Block Temporary Unprotect Ready/Busy/Output Byte/Word Organization Supply Voltage Ground
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