Philips DVP3140 Service Manual page 17

Distorted audio and loud noise
Distorted audio and
loud noise
Yes
Check the power supply
voltages +12V
to the decode board are
normal.
Yes
Check whether
muting transistor R65
andR67 are normal
Yes
Check whether the muting
transistor Q17,Q18, are
normal
Yes
Checking the U15 leads
the feet has no to break
to open
Yes
if the clock signal AOUT0,
ABCK and ALRCK output
by U1 are normal
Yes
Check whether the U1 or
U15 powersupply normal
Yes
Replace U1 or U15
All manuals and user guides at all-guides.com
No
and -12V
the No
No
No
No
4-7
Remark: Trouble shooting chart for
Correct connection
Replace R65 and R67
Replace Q17~Q18
Correct connection
No
Replace U1
SACLK waveform SBCLK waveform SSLRCK waveform
Check U15
Trouble shooting chart
DVP3140/XX