LG 22LS4D-ZB - No Raster Troubleshooting

LGE Internal Use OnlyCopyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 17 -
Does minute
discharge At Module?
Is the LVDC cable
normal?
Is the VAVS on?
Check the LCD Module
Yes
No
YES
Yes
Reconnect the LVDS
cable in P800
No
Is the IC700(FLI8548)
Output normal?
Replace the VSC.
No
NO
Replace the Power
board
Is the Low/High output
voltage normal except for
stand-by 5V?
NO
4. No Raster
(1) Symptom
1) No OSD and image occur at screen.
2) It maintains the condition where the front LED is green.
(2) Procedure check