Analog Audio Troubles - Marantz SR7005 Service Manual

4.3. Analog audio
No sound is output
Is the voltage of ±8V supplied to
SIDE CNT B'D CP6 13-16 pin?
YES
Is the audio signal transmitted to
AUDIO B'D CN401?
NO
Is the serial data for electronic volume
transmitted to FRONT CNT B'D
CP108 18,19pin? s
YES
Once more, checking the connection of the connector.
When can specify the trouble of the channel and function, Check signal route where it
corresponds.
NO
The power supply of ±8V is repaired.
YES
The power amplifi er is repaired.
YES
Is the connector correctly connected
with HDMI B'D?
61
NO
Connect the connectors properly.
YES
The HDMI B'D is repaired.