LG 55LB5900 - Additional Picture Options; Energy Saving Features; Audio Output Options

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Only for training and service purposes
5. HDMI Video
Check input signal format.
Is it supported?
Check HDMI Cable conductors
for damage or open conductor.
Check EDID
R810,R811,R815,R816 I2C Signal
Check JK800, JK801
ok
ok
ok
No
No
Re-download EDID data
ok
Replace Jack
Check HDMI Signal
Check other set
If no problem, check signal line
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
No
Replace Main Board
No
Check HDMI_DET(HPD)
No
ok
Replace R809, R814