3. No Raster
(1) Symptom
1) No OSD or image are displayed on the screen.
2) The front LED remains green.
(2) Follow check
Does
minute discharge
at Module?
Yes
Is the output
for the IC500
normal?
4. In the case of an unusual display in RF mode.
Is the
video output of the
Tuner normal? (Check
TU400_Pin13)
Yes
A
Is the FFC
Cable connected
well?
Yes
Change the IC(IC500)
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Only for training and service purposes
No
Is the VaVs on?
Yes
Check the PDP Module
No
Replace the VSC.
Is the
No
input voltage
normal?(Check
Pin3)
No
Check the power.
No
Re-insert the cable.
- 15 -
Is the output the normal
No
Low/High voltage except
for the Stand-by 5V?
Yes
Is the I
2
C communication normal?
(Check Pin9, Pin10)
Check the Tuner.
Replace the
Power board.
No
LGE Internal Use Only
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