71
4.3. Analog audio
No sound is output
Is the voltage of ±12V supplied to
DIGITAL B'D CN893?
Is the audio signal transmitted to
INPUT B'D CN892?
Is the serial data for electronic volume
transmitted to DIGITAL B'D IC891?
Once more, check the connection of the connector.
When you can specify the troubled the channel and function, check the corresponding
signal route where it corresponds.
The power supply of ±12V is repaired.
The power amplier is repaired.
Check the CPU.
YES
NO
YES
NO
YES
NO
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