LG 32PC50, Руководство по обслуживанию

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Only for training and service purposes
3. No Raster
(1) Symptom
1) No OSD or image are displayed on the screen.
2) The front LED remains green.
(2) Follow check
4. In the case an unusual display in RF mode.
Check the PDP Module
Replace the
Power board.
Does
minute discharge
at Module?
Is the inverter
/VaVs on?
Is output the normal
Low/High voltage except
for the Stand-by 5V?
Yes
No No
Is the output for the
IC500 normal?
Replace the VSC.
No
Yes
Check the power.(L1103)
Is the
video output of the
Tuner normal? (Check
TU400_Pin13)
Is the
input voltage
normal?(Check
Pin3)
Is the I2C communication normal?
(Check Pin9, Pin10)
Yes
No Yes
Is the LVDS
Pattern connected?
Yes
Change the IC(IC500)
Connect again
the Pattern.
No
No
Check the Tuner.
No
A
Start Check