Read LG 50PM4M-WA (CHASSIS:PM75A) Service Manual online
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3. No Raster
(1) Symptom
1) No OSD and image occur at screen.
2) It maintains the condition where the front LED is green.
2) It maintains the condition where the front LED is green.
(2) Procedure check
Check the PDP Module
Replace the
Power board.
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?
Low/High voltage except
for the Stand-by 5V?
Yes
No
No
Is there a fault with
the link cable?
Yes
Is the output for the
IC800 normal?
Reconnect the link cable in
P803
P803
No
Replace the VSC.
No
Yes
Start Check
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