LG 60LN549E Service Manual page 21

4. Component Video
Make sure the input signal type and
our TV can support the signal.
Yes
Check Component cable(gender)
defect or status of conductor
Yes
Make sure the JK1603, COMP Y/Pb/
Pr signal
Yes
Make sure the Rear_COMP_DET
signal.
Yes
Make sure the LVDS output signal of
Mstar IC.
5. RGB Video (LN549E Only)
Make sure the input signal type and
Our TV can support the signal.
Yes
Check the RGB cable defect or
status of conductor.
Yes
Check the EDID, I2C signal.
Yes
Check the JK1104 H/V_Sync/R/G/B
signal.
Yes
Check the DSUB_DET signal.
Yes
Check the LVDS output signal of
Mstar IC.
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Only for training and service purposes
No
Exchange Component Jack.
No
Exchange the R9912.
No
Exchange the Mstar(IC101)
or Main board.
No
Download the EDID data, exchange
the Mstar(IC101) or Main board.
No
Exchange the D-SUB Jack.
No
Exchange the resistor R1146 / R1147.
No
Exchange the Mstar(IC101) or Main
board.
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LGE Internal Use Only