Philips DVP3386K, Руководство по обслуживанию, Страница: 19 / 51

5-7
Distorted audio and loud noise
No
Yes
No
Yes
Yes
No
No
Distorted audio and
loud noise
Replace
Q22,Q24
and
Q26
Check R9and R117
Replace Q23,Q25
Check whether the
mutingtransistorQ22,Q
24, and Q26are normal
Yes
Check whether the
muting transistor
Q23,Q25 are normal
Checking the U9 leads the
feet has no to break to
open
&RUUHFWFRQQHFWLRQ
Replace U1
if the clock signal AL, AR
output by U1 are normal
Check whether the U1 or
U19powersupply normal
No
Yes
Check the power supply voltages
+12VB and refa to the operation
amplifying are normal.
Yes
Check U9
Replace U1 or U9
No
Yes
Trouble shooting chart
SACLK waveform SBCLK waveform
S
SLRCK waveform