Denon AVR-S900W

Connect the connectors correctly.
Repair the HDMI PCB.
NO
YES
4.3. Analog audio
No audio output.
Is a voltage of ±7V supplied to INPUT
PCB CN4006?
Is there an audio signal in INPUT
PCB CN401?
Is electron volume serial data being
sent to INPUT PCB CN4200?
Once more, connect the connectors correctly.
If the malfunctioning channel and function can be identied, check the corresponding
signal path.
Repair the ±7V power supply.
Repair the power amplier.
Is the connector correctly connected
with HDMI PCB?
YES
NO
YES
NO
YES
NO
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