Samsung DVD-R157 Service Manual page 34
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Also See for DVD-R157:
- Instruction manual (83 pages) ,
- Update manual (2 pages) ,
- Instruction manual (83 pages)
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Trouble Shooting
There is no Audio Output
signal AR413 and AR473
signal pin7pin8 of AIC1
anddata pin1, 2, 3, 16 of AIC1
Check the passive parts
5-10
Check he audio
(JACK PCB)
Yes
Check all
the 5V pin6of AIC1
(MAIN PCB)
Yes
Check the audio
(MAIN PCB)
Yes
Check digital clock
(MAIN PCB)
Yes
arond Jack pin.
No
Check the Low state pin22 of the
Front Micom IC601(Jack PCB)
No
Check SMPS
No
Replace Main PCB
No
Replace MAIN PCB
Digital Audio Data (Pin2 of Main AIC1)
Samsung Electronics
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