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Pioneer PDP-42A3HD Service Manual page 74

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1
7. No Sound DVI Audio (Sine wave input)
Preliminary Checkpoints
A
Check the condition of connectin of the input DVI Audio R/L.
Check the condition of soldering state in DVI Audio R/L &input part
Check the short point in signal line.
Check for short circuits between each power terminal and the ground.
B
C
D
E
F
T07
74
1
2
No Sound in
DVI Audio R/L
#29,31
at U706
in DTT & Analog B/D
Waveform 18
#56,57
At U751
In DTT&Analog Board
Waveform 19
#11,15
At U200
In Audio Amp Board
Waveform 20
#28,31,27,24
At U200
Waveform 21
Change Speaker
PDP-42A3HD
2
3
NG
Check DVI Audio input
part
NG
Check U706 &
input part of U751
NG
Check U751 and
Y800 and related circuit
NG
Check U20 and
X2 and related circuit
3
4
T07
4

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