Pioneer PDP-42A3HD Service Manual page 78

1
9. No Audio in Component Input (Sine wave input)
Preliminary Checkpoints
A
Check the condition of connectin of the input Component Audio R/L.
Check the condition of soldering state in Component 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
T09
78
1
2
No Sound in
Component Audio R/L
(1):Component1 Audio
(2):Component2 Audio
#50,51(1),47,48(2)
at U751
in DTT & Analog B/D
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 Component Audio
input part
NG
Check U751 and
Y800 and related circuit
NG
Check U20 and
X2 and related circuit
3
4
T09
4