No Audio - Pioneer PDP-42A3HD Training & Troubleshooting Manual

9. No Audio in Component Input (Sine wave input)
Preliminary Checkpoints
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.
Component Audio R/L
No Sound in
#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
(1):Component1 Audio
(2):Component2 Audio
NG
NG
NG
48
Check Component Audio
input part
Check U751 and
Y800 and related circuit
Check U20 and
X2 and related circuit