The ervice manual for my 1982 Kenwood KR-1000 receiver is great! Full detail on all circuits with part number detail. I will definately be ordering more manuals for my other vintage equipment! Order was fulfilled quickly! Very efficient ordering process! Thnaks for your help! Great site!
Everything in the manual was excellent except for a couple of pictures of specific areas in the unit that were a little dark. Owners Manuals re-sent the pdf file & the problem was corrected. Excellent product! George
This is the original manufacturers service manual, with detailed info on the circit boards, explosion drawings of all parts in assembly order, and tuning instructions. The only thing missing is the information on the dimensions of the various drive belts. mail me if you need them. gcrossman_at_aol.com
Text excerpt from page 16 (click to view)
Pin No. 73 74 75 76 77
Pin Name VDD5V VSS CONT6 CONT7 V/*P
I/O � � I/O I/O O
Description Microprocessor interface power supply. (2000pF or more path controller to be inserted at a point nearer to the pin between this pin and GND) Digital ground pin. Must be connected to 0V. General-purpose input/output pin 6. General-pirpose input/output pin 7. Rough servo/phase control automatic switching monitor output pin. �H� for rough servo and �L� for phase servo. Synchronization signal detection output pin. Outputs a high level when the
78
FSEQ
O
synchronization signal detected from the EFM signal and the internally generated synchronization signal agree.
79 80
DEFECT EFMO
I/O O
Defect pin. Which becomes an input pin after reset and can be controlled externally. This becomes the defect monitor pin under control by command. EFM signal output pin.
