Marantz SR7009/U1B - Page 112

Connect the connectors correctly.
Repair the DIGITAL PCB.
NO
YES
4.3. Analog audio
No audio output.
Is a voltage of ± 7V supplied to SIDE
CNT PCB CN64C 4-7pin?
Is there an audio signal in INPUT PCB
CN461?
Is electron volume serial data be-
ing sent to SIDE CNT PCB CN23C
15,16,17pin?
Once more, connect the connectors correctly.
If the malfunctioning channel and function can be identied, check the correspond-
ing signal path.
Repair the ± 7V power supply.
Repair the power amplier.
Is the connector correctly connected
with DIGITAL PCB?
YES
NO
YES
NO
YES
NO
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