Pioneer PDP-V402 Service Manual page 95

3. DIGITAL VIDEO ASSY
Check the following points.
1) Input RGB signal
R signal K6101
G signal K6102
B signal K6103
LED D6502 (NTSC): Lit during NTSC input and off
during PC input
2) Input sync signal HD, VD, and REF H
1 HD
K6020
2 REF H
K6006
1
2
VD K6005
V: 0.5 V/div. H: 20 µsec/div.
V: 0.5 V/div. H: 20 µsec/div.
V: 0.5 V/div. H: 20 µsec/div.
V: 2 V/div. H: 20 µsec/div.
V: 2 V/div. H: 5 msec/div.
3) Clock signal
IC6201 PD4800A CLK21 K6004
4) Address waveform
UADR5 R6251
1 VD IN
2 UADR5
1
2
5) Drive waveform
YBYPASS R6562
1 VD IN
2 YBYPASS0
1
2
LED D6503 (OUTPUT): Lit when sustain output is normal,
and off when abnormal
PDP-V402
V: 2 V/div. H: 20 nsec/div.
V: 2 V/div. H: 2 msec/div.
V: 2 V/div. H: 2 msec/div.
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