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50PZ540-UB, 50PZ550-UA (CHASSIS:PU13A) - LG TV Service Manual (repair manual). Page 64

Read LG 50PZ540-UB / 50PZ550-UA (CHASSIS:PU13A) Service Manual online

Great Company  Great People
Component / RGB / AV Audio Trouble Shooting
Check Connector and cables
JK100 (Component, AV Rear)
P100 (RGB)
JK101 (AV Side)
Replace connector or cable if 
found damaged
N
Y
Check signal
R126 / R127 (Component1)
R117 / R118 (Component2)
R149 / R150 (RGB)
R109 / R110 (AV Rear)
R111 / R112 (AV Side)
Replace the Resistor
N
Y
31/37
Follow procedure All source audio 
trouble shooting 
(on page 25)
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