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7. Trouble shooting - No video (HDMI)
Check input signal format.
Is it supported?
Check HDMI Cable conductors
for damage or open conductor.
Check HDMI Switch
IC701 video Signal and I2C line
Check JK70 1 / 2 / 3 / 4
Check HDMI Signal output
of HDMI Switch (IC701)
Check BCM LVDS Output
Check FRC IC LVDS Output
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Only for training and service purposes
ok
ok
No
ok
No
Replace Jack
ok
No
Replace the defective IC.
ok
No
Replace BCM( IC101) or Main Board.
ok
No
Replace FRC IC(IC5201) or Main Board.
No
Check L2103(+3.3V)
OK
Replace Coil
Replace the defective IC.
LGE Internal Use Only
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