AVD-K600P
B.
Hi-Fi REC.
It is impossible to record and playback
Hi-Fi Audio signal.
YES
Check Vcc of IC801. (Pins 3, 15, 32, 46)
NO
YES
Check IC801 Pin 37(Data),Pin 38(CLOCK).Check Power.
NO
YES
Is IC501 Pin 84(A.Mute) OHigh�?Check ports of ?-COM.
NO
YES
Are Audio signals present at IC801
Check the Port of ?-COM.
Pins 78, 80?
NO
YES
Do FM Audio signals appear at IC801Check Audio Input signal Line
Pin 26?(9, 11, 12, 71, 73, 74), Tuner(57).
NO
YES
Is IC801 Pin 17(REC OH�) OHigh�?Replace IC801.
NO
YES
Check the Contact Points of Drum
Check the Port of u-COM.
Connector if good then Replace the Drum.
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