Service manual

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IC701, IC751 Troubleshooting
3PIN signal input check
8, 15Pin(-), 7, 13Pin(+) voltage check
14 Pin signal output check
OK
Refer to Muting circuit
Refer to power supply check
9, 10PIN power check (over 5V)
PLAY check
IC202 18Pin VCC power applied
IC202 5,20 Pin signal output check
Muting circuit check
Refer to power supply check
Deck Mecha operation performance check
Deck Mecha replace
IC202 replacement
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO