Connect the connectors correctly.
Repair the HDMI PCB.
NO
YES
4.3. Analog audio
No audio output.
Is a voltage of ± 8 V supplied to
INPUT PCB CN4006?
Is there an audio signal in INPUT PCB
CN401?
Reconnect the connectors correctly.
If the malfunctioning channel and function can be identified, check the correspond-
ing signal path.
Repair the ± 8 V power supply.
Repair the power amplifier.
Is the connector correctly connected
to the HDMI PCB?
YES
NO
YES
NO
YES
89