22
No
No
Yes
Yes
D
C
S
U
S
D
S
1
C
a
t
a
D
o
e
d
i
V
2
C
T
E
D
e
l
b
a
C
3
C
l
e
n
a
P
S
D
V
L
5
D
V
I
R
D
N
A
C
S
m
r
o
f
e
v
a
W
(
)
1
C
S
P
T
t
a
<Symptom>
Electronic Abnormal Discharge Picture (All over the screen)
<Counter Measure>
<Trouble Picture Example>
Notice:
You can also diagnose which board is wrong by measuring waveform at TPSC1.
Diagnosis procedure is as follows.
<Caused Possibility>
<Diagnosis Procedure>
<Block Diagram>
Disconnect SU board from
SC board then Power ON.
Can you see the picture
normally at lower half?
Connect SU board, Disconnect SD
board from SC board then
Power ON. Can you see the picture
normally at upper half?
SU Board
SD Board
SC Board
SC, SU, SD Board
Disconnect SU or SD Board
5. Troubleshooting
Picture Problem (2)
IC9300
IC9400
IC9003
Discharge Control for SS
Discharge Control for SC
IC9500
Test
Pattern
Situation
Disconnect
SD Board
(Connect SU)
Disconnect
SU Board
(Connect SD)
Disconnect
Both Boards
Waveform
OK
Waveform
OK
Waveform
OK
Condition
Cause
SU
Board
SD
Board
SC
Board
(D Board)
(*1)
(*1) For PX80, it is A board , because there is no D board.
Summary of Contents for PDP 2008 models
Page 3: ...3 1 2008 PDP Line up Feature Comparison ...
Page 5: ...5 2 PCB Location Function ...
Page 11: ...11 3 PCB List ...
Page 13: ...13 4 Block Diagram ...
Page 19: ...5 Troubleshooting 19 ...
Page 25: ...6 Appendix 25 ...
Page 29: ...R ...
