Philips DVP3000K - Page 17

4-7
Distorted audio and loud noise
No
Yes
No
Yes
Yes
No
No
Distorted audio and
loud noise
R eplace L7 and L8
C heck Q 2and Q4
R eplace Q 29,Q 31 and Q 25
C heck w hether the
muting transistor L7
and L8 are normal
Yes
C heck w hether the
muting transistor Q 29,
Q 31 and Q25 are normal
C hecking the U 11 leads
the feet has no to break to
open
Correct connection
R eplace U3
if the clock signal ACLK,
A
BC K and A LR C K
out
p
ut b
y
U3 are normal
C heck w hether the U 3 o
r
U 11 pow er supply normal
No
Yes
C heck the pow er supply voltages
+12V and -12V to the operation
am plifying Q2 andQ 4 are normal.
Yes
C heck U11
R eplace U3 or U11
No
Yes
Trouble shooting chart
SA C LK waveform
SBCLK waveform SSLRCK waveform
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