Samsung DVD-SR150M, Service Manual

Page: 54 / 120

Trouble Shooting
4-32 Samsung Electronics
There is no Audio Output
Check the audio
signal SR60 SR56
(Jack PCB)
Check the passive parts around
Audio Jack pin.
No
Yes
Check the
supply voltage of of VIC13.3V
(Main PCB)
Check connection between Main connector
CON1,CON2,CON3 and Jack connector
CN3,CN4,CN5
Check SMPS
No
Yes
Check the audio
out signal, pin25,27 of CON2
(Main PCB)
Replace Main PCB
No
Yes
Check I2S
singnal of audio ADC
(VDR56)
Replace Main PCB
No
Yes
Refer to wave pattern image of Fig. 4-22
Refer to wave pattern image of Fig. 4-22
Refer to wave pattern image of Fig. 4-23