Philips DVP3126 Service Manual page 17

Distorted audio and loud noise
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Distorted audio and
loud noise
Yes
Check the power supply
voltages +12V to the
operation amplifying Q27
and -12V are normal.
Yes
Check whether the muting
transistor R176 and
R175 are normal.
Yes
Check whether the muting
transistor Q17~Q18,Q40~Q43
Q42 are normal
Yes
Checking the U1
leads the feet has no
to break to open
Yes
Replace U1
manuals search engine
4-7
No
Check Q27
No
Replace R176 and R175
No
Replace Q17~Q18 ,Q40~Q43
No
Correct connection
Trouble shooting chart