LG 43LF5400-UB Service Manual page 20
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Also See for 43LF5400-UB:
- Safety and reference (45 pages) ,
- Owner's manual (31 pages) ,
- Service manual (29 pages)
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6. All Source Audio
Check the TV Speaker Menu
(Menu -> Audio -> TV Speaker)
ON
Check AMP IC(IC5600) Power
24V, 3.3V
OK
Check Mstar AUDIO_MASTER_CLK
R148
OK
Check AMP I2C Line
R140, R141
OK
Check Mstar I2S Output
IC5600 20,21,22 Pin
OK
Check Output Signal
P5600
1, 2, 3, 4 pin.
OK
C h e c k C o n n e c t o r &
P5600
OK
Check speaker resistance
and connector damage.
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LG Electronics. Inc. All rights reserved.
Only for training and service purposes
OFF
Toggle the Menu
NO
Main B/D 3.3V Line
Short Check
NO
Replace Mstar(IC101)
or Main Board.
NO
Check signal line.
Or replace Mstar(IC101)
NO
Check signal line.
Or replace Mstar(IC101)
NO
R e p l a c e A u d i o A M P
IC(IC5600)
NO
Replace connector
if found to be damaged.
NO
Replace speaker.
- 20 -
LGE Internal Use Only
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