Sony KDE-V42A12U / KE-V42A10E Service Manual ▷ View online
4.1.3 Abnormal Display (Abnormal Image is on Screen except abnormality in Sustain or
Address)
⇒ Abnormal Display is related with Y-MAIN, X-MAIN, Logic Main and so on.
This page shows you how to check the boards, and the following pages show you how to
find the defective board.
4.1.4 Sustain Open (some horizontal lines don’t exist on screen)
After Changing
Replace PDP
NG
OK
[Y-FPC]
Logic B’d
Check
① PSU to Logic Cable
② Fuse F2000, F2001
③ LED 2000;Green
④ Each Connector
Replace Logic B’d
NG
Y-Main
Check
① Fuse Open
(F5001, 5002, 5003)
② FET Short/Open
(Q5011, 5013, 5016,
Q5017)
③ FFC Connection
NG
Replace Logic B’d
X-Main
Check
① Fuse Open
(F4001, 4002, 4003)
② FET Short/Open
(Q4010, 4011, 4014,
Q4015)
③ FFC Connection
NG
Replace Logic B’d
Done
(Defect is from buffer)
- 1 7 -
4.1.5 Sustain Short (Some horizontal lines appear to be linked on Video )
4.1.6 Address Open (Some vertical lines don’t exist on screen )
⇒ Address Open is related with Logic Main, Logic Buffer, FFC, TCP and so on.
This page shows you how to check the boards, and the following pages show you how to
find the defective board.
After
Changing
Replace PDP
NG
OK
[Y-FPC]
Done
(Defect is from buffer)
Address Open
⇒ Line Open
⇒ Data Block Open
⇒ TCP Block Open
[ Logic Main/FFC ]
Changing some parts
[ Logic Buffer ]
Changing necessary
Parts (E/F/G)
- 1 8 -
4.1.7 Address Short (some vertical lines appear to be linked on screen)
⇒ Address Short is related with Logic Main, Logic Buffer, FFC, TCP and so on.
This page shows you how to check the boards, and the following pages show you how to find
the defective board.
Line or
Block
Replace
PDP
NG
OK
What is the status of open?
Replace
Logic Main/
Address Buffer
(E/F/G)
Add buffer size Block
OK
Done
OK
NG
Address Short
⇒
Line Short
⇒ Data Block Short
[ Logic Main/FFC ]
Changing some parts
[ Logic Buffer ]
Changing necessary
Parts (E/F/G)
- 1 9 -
Line or
Block
Replace
PDP
NG
OK
What is the status of open?
Replace
Logic Main/
Address Buffer
(E/F/G)
Half Block/
Half of
OK
Done
OK
NG
- 2 0 -
Click on the first or last page to see other KDE-V42A12U / KE-V42A10E service manuals if exist.