LG 43LX310C, Service Manual

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6. All Source Audio
Check the TV Speaker Menu
(Menu -> Audio -> TV Speaker)
On
ok
ok
Replace C5630, C5632, C5633, C5631, C5634, C5635
Check Connector & P5600
Replace connector
if found to be damaged.
ok
No
Check speaker resistance
and connector damage.
Replace speaker.
ok
No
Off
Toggle the Menu
Check AMP IC(IC5600) Power
13.2V, 3.3V
No
Replace Amp IC(IC5600)
Check Output Signal P5600
1, 2, 3, 4 pin.
No
Check Mstar AUDIO_MASTER_CLK
R123
No
Replace Mstar(IC101) or Main Board.
ok
Check AMP I2C Line
R111, R112
No
Check signal line. Or replace Mstar(IC101)
Replace Audio AMP IC(IC5600)
Check signal line,
L5603, L5604, L5605, L5606
ok
No