PIONEER PDP-42RXE/WYIXPL
Instrukcja Serwisowa

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13. No Sound in Video Input (Sine wave input)
A

Preliminary Checkpoints

Check the condition of connectin of the input CVBS Audio R/L. Check the condition of soldering state in CVBS Audio R/L & input part Check the short point in signal line. Check for short circuits between each power terminal and the ground.

B

No Sound in CVBS Audio R/L

#2,4 at U45 in Main B/D

NG Check CVBS Audio input part

Waveform 28
C

#56,57 at U50 in Main Board

NG

Check U45 & input part of U50

Waveform 29

#11,15 at U200 in Audio Amp Board
D

NG

Check U50 and Y5 and related circuit

Waveform 30 #28,31,27,24 at U200 in Audio Amp Board

NG

Check U21and X1 and related circuit

Waveform 31

Change Speaker
E

F

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PDP-42RXE
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