LG 39LB5600, Service Manual

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Only for training and service purposes
7. All Source Audio
Check the TV Speaker M enu
(M enu -> Audio -> TV Speaker)
On
ok
ok
Check Output Signal P5600
1, 2, 3, 4 pin.
Replace Audio AMP IC(IC5600)
ok
No
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
24V, 3.3V
No
Replace Amp IC(IC5600)
Check Mstar I2S Output
IC5600 20,21,22 Pin
No
Check signal line. Or replace Mstar(IC101)
Check Mstar AUDIO_MASTER_CLK
R148
No
Replace M star(IC101) or M ain Board
.
ok
Check AMP I2C Line
R140, R141
No
Check signal line. Or replace Mstar(IC101)