All Source Audio Trouble Shooting - LG 50PG20 Troubleshooting Manual

All Source Audio Trouble Shooting

Make sure you cant hear any audio
Check IC502 Power 16V, 3.3V, 1.8V
Maybe NTP3000A has problems. Replace it
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Only for training and service purposes
TROUBLE SHOOTING GUIDE
Y
Check Mstar I2S Output
R1035, R1037, R1038
Y
Y
Check Signal
L919, L920
Y
Check Signal
L509, L510, L511, L512
Y
Check Connector
JK501
Y
Check speaker
Y
N
Replace it.
N
Re-check
N
Replace it.
N
Replace it
N
Replace connector
N
Replace speaker
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LGE Internal Use Only