LG 42CS560 Service Manual page 18

8. HDMI Video
Check input signal format.
Is it supported?
ok
Check HDMI Cable conductors
for damage or open conductor.
ok
Check EDID
R4033,R4034,R4035,R4036,
R4037,R4038 I2C Signal.
ok
Check JK801, JK802, JK803.
ok
Check HDMI_DET(HPD).
ok
Check HDCP EEPROM(IC103)
Power & I2C Signal
ok
Check HDMI Signal.
ok
Check Mstar LVDS Output.
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Only for training and service purposes
No
Replace the defective IC or re-download EDID data.
No
Replace Jack.
No
Replac e R830,R828,R862.
No
Replace the defective IC.
No
Check other set.
If no problem, check signal line.
No
Replace Mstar(IC101) o r Main Board.
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No
Replace Main Board.
LGE Internal Use Only