Marantz NR1605/U1B - 4.3. Analog audio

Connect the connectors correctly.
Repair the HDMI PCB.
NO
YES
4.3. Analog audio
No audio output.
Is a voltage of ±7V supplied to AV
PCB CP5201?
Is there an audio signal in AV PCB
CN4801?
Is electron volume serial data being
sent to AV PCB CP5200?
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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