Philips DVP3156, DVP3160K, DVP3166(K) Distorted audio and loud noise

4-7
Distorted audio and loud noise
No
Yes
No
Yes
Yes
No
No
Distorted audio and
loud noise
Replace Q7 ˈQ8
Check Q15
Replace Q26,Q30,Q31
Check whether the
muting transistor
Q7 ˈQ8 are normal
Yes
Check whether the
muting transistor Q26,
Q30,Q31,are normal
Checking the U10 leads
have not been broken or
open
Correct connection
Replace U2
if the clock signal ACLK,
ABCK and ALRCK
out
p
ut b
y
U2 are normal
Check whether the U2 or
U10 power supply normal
No
Yes
Check the power supply voltages
+12V and -12V to the operation
amplifying Q15 IS normal.
Yes
Check U10
Replace U2 or U10
No
Yes
SACLK waveform SBCLK waveform SSLRCK waveform
Trouble shooting chart
Remark: Trouble shootingchart for
DVP3160K/XX