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

4-7	Trouble shooting chart
Distorted audio and loud noise	Remark: Trouble shooting chart for
	DVP3160K/XX
Distorted audio and
loud noise
Yes

Check the power supply voltages +12V and -12V to the operation amplifying Q15 IS normal.

Yes

Check whether the muting transistor Q7 Q8 are normal

Yes

Check whether the muting transistor Q26, Q30,Q31,are normal

Yes

Checking the U10 leads have not been broken or open

Yes

if the clock signal ACLK, ABCK and ALRCK output by U2 are normal

Yes

Check whether the U2 or U10 power supply normal

No

Check Q15

No Replace Q7 Q8

No

Replace Q26,Q30,Q31

No

Correct connection

No

Replace U2

SACLK waveform SBCLK waveform SLRCK waveform

No

Check U10

Yes

Replace U2 or U10