Samsung DVD-R155 Service Manual page 29

There is no Audio Output
signal pin106 pin110 of VIC1
and data pin102,103,104,105 of VIC1
Check the passive parts
Samsung Electronics
Check audio signal
of 37,38 pin in IC216.
Yes
Check all the
9V pin36 of IC216
(Jack PCB)
Yes
Check the audio
(MAIN PCB)
Yes
Check digital clock
(MAIN PCB)
Yes
arond Jack pin.
No
Check the Low state pin6 of the
Front Micom FIC1(Jack PCB)
No
Check SMPS
No
Replace Main PCB
No
Replace MAIN PCB
AUDIO DATA (VIC1 pin105)
Trouble Shooting
5-7