LG 22LH200C Service Manual page 16

4. Component Video
Check input signal format.
Is it supported?
OK
Check Component Cable.
OK
Check JK1200.
OK
Check Mstar LVDS output
5. RGB Video
Check input signal format.
Is it supported?
OK
Check RGB Cable conductors for
damage.
OK
Check JK1204.
OK
Check EDID.
OK
Check signal R/G/B/H/V-Sync
C113, C108, C114, R146, R149
OK
Check Mstar LVDS output
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Only for training and service purposes
No
Replace Jack.
No
Replace Mstar(IC100) or Main board.
No
Replace Jack.
No
Replace the defective IC or re-download EDID data
No
Check other set.
If no problem, check signal line.
No
Replace Mstar(IC100) or Main board.
- 16 - LGE Internal Use Only