LG 32LD350 Service Manual page 39

7. HDMI Video
Check input signal format.
Is it supported?
ok
Check HDMI Cable conductors
for damage or open conductor.
ok
Check EDID & EEPROM
IC7701 (*IC7702)
I2C Signal
ok
Check JK7700, JK7702
ok
Check HDMI_DET(HPD)
ok
Check HDCP Key NVRAM(IC105)
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
Replace R7703,R7705,R7731,R7732
No
Replace the defective IC.
No
Check other set
If no problem, check signal line
No
Replace Mstar(IC100) or Main Board.
* JK7702 is Side HDMI supported model
26/32LD350 models
No
Replace Main Board
LGE Internal Use Only