Read LG 60PG30F-UA / 60PG30FC-UA (CHASSIS:PU84C) Service Manual online
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TROUBLE SHOOTING GUIDE
HDMI Video Trouble Shooting
Check signal format
Is it supported?
Y
Check J801 / J802 / J803
Replace connector
Y
N
Y
Check HDMI Cable
Check EDID NVRAM
(IC801, 802, 804)
Power & I2C Signal (#5, #6)
Replace it or re-download
Y
N
Check HDCP Key NVRAM (IC102)
Power & I2C Signal (#5, #6)
Replace it
Y
N
Check IC803 Out Voltage Level
3.3V
Replace it
Y
N
Check L802 Voltage Level 3.3V
Replace it
Y
N
Check IC803 Clock Signal
#26, #27
Replace it
Y
N
Maybe Mstar(IC100) has problems
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