Read LG 42PB4RTH-TB (CHASSIS:PP7BA) Service Manual online
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3. No Raster
(1) Symptom
1) No OSD or image are displayed on the screen.
2) It maintains the condition where the front LED is green.
2) It maintains the condition where the front LED is green.
(2) Follow 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
IC700 normal?
Reconnect the link cable in P600.
No
Replace the VSC.
No
Yes
Start Check
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