2. No audio output from this unit
(HDMI/Coax/Opt/AUX/Streaming/Bluetooth/USB)
AMP PCB
Check the output voltage
[J4] 24V
SMPS PCB
Check the output voltage
24V
The FFC cable is faulty.
Check the FFC cable between the MAIN PCB and
AMP PCB.
The FFC cable is faulty.
or
Main PCB
The circuit around [U7] is faulty.
AMP PCB
Check the output signal
[TP4] = 3.3V
[TP6] SDA
[TP7] SCL
[TP10] MCLK
[TP11] SCLK
[TP13] LRCK
[TP17] mute=Hi
[TP18] FAULT=Hi
Check the cable or connector
and its connection.
YES
OK
YES
NOYES
The AMP PCB is faulty.
NG
NO
40
Caution in
servicing
Electrical Mechanical Repair Information Updating
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