Samsung DSB-S300G Service Manual page 26

RCA Sound Output Missing
Check ΠAnalog Audio
Signal at C704,C706
Yes
Check ´ Analog Audio
Signal C725, C732
Yes
Check ˇ Analog Audio
output at Pin28,27 of U701
Yes
Check ¨ Audio signal at
L706, L705
Yes
Check Failure mode
of J703(RCA Connector)
Samsung Electronics
Check Failure mode of
No
U302(STi5100)
Check Failure mode of
No
U702 and Application
Circuit pin 8 = 12V
No Check of U701(STV6412)
Failure mode.
No
Check U1001 Failure mode and
application circuit
Troubleshooting
ΠAnalog Audio Signal at
C704,C706
´ Analog Audio Signal
C725, C732
ˇ Analog Audio output at
Pin28,27 of U701
¨ Audio signal at L706, L705
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