Analog Audio - Denon AVR-E300 Service Manual

4.3. Analog audio

No sound is output
Is the voltage of ±12V supplied to
DIGITAL B'D CN893?
YES
Is the audio signal transmitted to
DIGITAL B'D CN892?
NO
Is the serial data for electronic volume
transmitted to DIGITAL B'D IC891?
YES
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.
NO
The power supply of ±12V is repaired.
YES
The power amplifier is repaired.
NO
Check the CPU.
73