No Component Signal - Pioneer PDP-42A3HD Training & Troubleshooting Manual

3. No Component Video Signal
Preliminary Checkpoints
Check the condition of connectin of the input component video signal.
Check the condition of soldering state in U401
Check the short point in signal l ine.
Check for short circuits between each power terminal and the ground.
signal (SMPTE Color Bars)
The output signal
appear at PR14~19
PR29,31,34,35,38,39
Check the LVDS Cable
Change Digital B/D
No Component
#22,25,27
at U1
in digital B/D
Waveform 9
At U401
In digital Board
Waveform 10
Dose the signal
In digital B/D
Waveform 11
Dose the signal
appear at
In digital B/D
Waveform 12
and JP500
in Digital B/D
NG
Check the state of soldering
at JP1 &input signal part
NG
Check U401 and
Y400 and related circuit
NG
Check U16 and
Y2 and related circuit
NG
Check U20 and
X2 and related circuit
NG
Change the LVDS Cable
&LVDS chip
Test Patterm : SMPTE Color Bats
36