Denon AVR-X1200W - Page 80

4.3. Analogaudio
No audio output.
Is a voltage of ± 12 V supplied to
DIGITAL PCB CN823?
Is there an audio signal in DIGITAL
PCB CN822?
Is the serial data for electronic volume
sent to the IC821 of DIGITAL PCB?
Reconnect the connectors correctly.
If the malfunctioning channel and function can be identied, check the correspond-
ing signal path.
Repair the ± 12V power supply.
Repair the power amplier.
Check the CPU.
YES
NO
YES
NO
YES
NO
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