B.
Hi-Fi REC.
It is impossible to record and playback
Hi-Fi Audio signal.
YES
Check Vcc of IC801. (Pins 34,40)
NO
YES
Check IC801 Pin 42(Data),Pin 43(CLOCK).Check Power.
NO
YES
Do Audio signals appear at IC801
Check ports of ?-COM.
Pins 16, 17?
NO
YES
Do FM Audio signals appear at IC801Check Audio input signal of IC801
Pin 36?Pins 2, 3(TU.A.), 6, 7(Scart 1)
NO
YES
Check the Contact Points of Drum
Replace IC801.
Connector if good then Replace the Drum.
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