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50PV400-UB, 50PV430-UC, 50PV450-UA (CHASSIS:PU14K) - LG TV Service Manual (repair manual). Page 52

Read LG 50PV400-UB / 50PV430-UC / 50PV450-UA (CHASSIS:PU14K) Service Manual online

Great Company  Great People
Follow procedure All source audio trouble 
shooting 
Check EDID EEPROM (IC502, 503, 504)
Power(#8) & I2C Signal (#5, #6)
Replace IC or re-download EDID data.
Y
N
HDMI Audio
Trouble Shooting Guide
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