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9. All Source Audio Trouble Shooting
Make sure you can't hear any audio
Y
Check Speaker
Y
Check Connector P501
Y
Check Signal
L504, L505
Y
Check IC501 Power
24V, 3.3V, 1.8V
L511, L503, L501
Y
Check BCM3556 I2S Output
R505, R506, R507
Y
Maybe BCM3556(IC100)
has problems
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Only for training and service purposes
N
Replace Speaker
N
Replace Connector
Replace one of
N
L508/L509/L510/L507/L504/L505
& Recheck
Replace one of
N
L511L503/L501 and IC503
& Recheck
N
Replace It & Recheck
N
N
Maybe NTP3100 has problems.
Replace It
N
N
LGE Internal Use Only
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