LG 50PM4700 Service Manual page 54
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Also See for 50PM4700:
- User manual (178 pages) ,
- Specifications (2 pages) ,
- Owner's manual (232 pages)
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9. All Source Audio Trouble Shooting
Make sure you can't hear any audio
Y
Check Speaker
Y
Check Connector P800
Y
Check Signal
L801, L802, L803, L804
Y
Check IC800 Power
17V, 3.3V
Y
Check BCM2112 I2S Output
AR800
Y
Maybe BCM2112 (IC100)
has problems
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Only for training and service purposes
N
Replace Speaker
N
Replace Connector
Replace one of
N
Capacitor, Register
& Recheck
N
Replace It & Recheck
N
Replace It & Recheck
N
Maybe STA368 has problems.
Replace It
LGE Internal Use Only
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