Read LG 60PM9700-ZA (CHASSIS:PD22B) Service Manual online
Check Signal Format
Is it supported signal?
Y
Check HDMI Jack
JK600, JK601, JK602, JK603
N
Y
Y
Check HDMI Cable
Replace Jack
Maybe MTK5369 (IC100)
has problems
Y
N
Check EDID D/L
Re-Download EDID
8. HDMI Video Trouble Shooting
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