LG 42CS560 Service Manual page 17

6. SCART Video
Check input signal format.
Is it supported?
ok
Check Component Cable
for damage or open conductor.
ok
Check JK1602
R/G/B and sync signal Line.
ok
Check SC1_DET Signal.
ok
Check Mstar LVDS Output.
7. RGB Video
Check input signal format.
Is it supported?
ok
Check RGB Cable conductors
for damage or open conductor.
ok
Check EDID
I2C Signal
R138, R139(SDA,SCL).
ok
Check JK1104
H/V_Sync/R/G/B Signal Line.
ok
Check DSUB_DET.
ok
Check Mstar LVDS Output.
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Only for training and service purposes
No
Replace Jack.
No
Replace R1614.
No
Replace Mstar(IC101) or Main Board .
No
R e-download EDID data ,Replace Mstar(IC101) or Main Board.
No
Replace Jack.
No
Replac e R1146 or R1147.
No
Replace Mstar(IC101) or Main board.
- 17 - LGE Internal Use Only