LG 40LX770H Service Manual page 49

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
MPI
Copyright 2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
* 3.5V_ST -> 5V_ST Step-up Power
D8805
L8800
SMAB34
3.6uH
40V
6 5
+3.5V_ST SW_1 PGND
7 4
SW_2 AGND
8 3
IN EN
C8806
C8809 C8807
0.1uF 10uF 1uF
16V 10V 10V
9 2
OPT FREQ FB
10 1
SS COMP
C8803
0.1uF
TPS61087DRC
[EP]AGND
16V
IC8800
+5V_ST
OPT
C8808
+3.5V_ST C8804
1uF
22uF
16V
16V
OPT
C8805
R1
100pF
R8811
50V
3.3K
1%
R8810
R2
18K
1%
R8812
16K
C8810
2700pF
50V
LX770H
+5V_ST Step Up
2014.11.15
21 24
LGE Internal Use Only