4.3. Analog audio
No audio output.
Is a voltage of ±12V supplied to
DIGITAL PCB CN823?
Is there an audio signal in DIGITAL
PCB CN822?
Is electron volume serial data being
sent to DIGITAL PCB IC821?
Once more, connect the connectors correctly.
If the malfunctioning channel and function can be identiîšżed, check the corresponding
signal path.
Repair the ±12V power supply.
Repair the power ampliîšżer.
Check the CPU.
YES
NO
YES
NO
YES
NO
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