Read LG 37LG350H (CHASSIS:LD85F) Service Manual online
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Yes
Yes
No
No
Replace the Power board.
Check the LCD Module.
Reconnect Panel link cable.
(P401 or P406 or P401)
(P401 or P406 or P401)
Replace the Q1104.
No
Yes
No
No
Does minute discharge
at Module?
Is the link
cable normal?
Is the Q1104’s
output normal?
Is the inverter
/ VaVs on?
2. No Raster
(1) Symptom
1) No OSD and image occur at screen.
2) It maintains the condition where the front LED is blue.
2) It maintains the condition where the front LED is blue.
(2) Check process
Is output the normality
Low/High voltage except
Stand-by 5V?
Low/High voltage except
Stand-by 5V?
Yes
No
No
Yes
Check the Power.
Cable inserts well.
Change the IC(IC100).
Yes
No
No
Check the Tuner.
Is video
output of the Tuner
normal?(Check TU500
_Pin15)
Is the LVDS cable
connected well?
Is the input
voltage normal?
(Check Pin4)
Is the I2C communication
Normal?(Check Pin10, Pin11)
3. Unusual display from TV/CATV mode
BLOCK A
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