LG 42LB550T Service Manual

2-6-1. Main Power Block
+3.5V_ST
Tuner 3.3V
Tuner 3.3V LNA (S2)
Tuner 3.3V S2 DE (S2)
Tuner 3.3V China (OPT)
Tuner 1.1V (S2)
Main 3.3V
3.3V Normal
L401 L400 Q406 L410
IC404 (DCDC)
3.3V->1.5V
L411 DDR 1.5V L409
L3704
L3701
L3702
L3703
IC3701 (LDO)
3.3V->1.1V
L204
Main VDDC
Main VOIDE
Main DPMLL
Main AU33
IR
IC1300 FLASH
L406
L206
L207
L208
L4600
IC403 (DCDC)
3.3V->1.1V
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Only for training and service purposes
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LG 42LB550T Specifications

General

Brand	LG
Model	42LB550T
Category	LED TV
Language	English