Samsung DVD-VR320/XEF, Manual

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Troubleshooting
6-26 Samsung Electronics
Voltage of AR17
and AR31 is lower than 0.6V
(jack PCB)
Proper vcc and vdd
of AIC1 (main PCB) and
AIC4 (jack PCB)
Check the passive components
ardund jack pin
Check mute block
No
No
Check SMPS board
Output from pin7 and pin8
of AIC1 of main PCB
No No
Proper output on pin1
and pin7 of AIC4
Check the board to board connector
between jack PCB and main PCB
Yes
Yes
Yes
Yes
No Analog Audio Output
Proper data between AIC1
and DIC1 (main PCB)
Replace main board
Yes