Philips DVP3120 Series Service Manual page 27

istorted audio and loud noise
Distorted audio and
loud noise
Check the power supply
voltages +12V
to the decode board are
normal.
Check
muting
Q17,Q20, are normal
Yes
Checking the U8 leads
the feet has no to break
to open
Yes
if the clock signal AOUT0,
ABCK and ALRCK output
by U1 are normal
Check whether the U1
or U9
normal
Replace U1 or U9
Yes
and -12V
Yes
whether the
transistor
Yes
powersupply
Yes
4-17
No
Correct connection
No
Replace Q17 Q20
No
Correct connection
Replace U1
No
SACLK waveform
SBCLK waveform
No
Check U9
T rouble shooting chart
Remark: Trouble shooting chart for
DVP3120/05/12
SSLRCK waveform