LG 42LY750H Service Manual page 45

12V EXT.Power Out
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.
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
R9110
100K
Switching noise reducing [MPS recommend]
C9113 0.1uF
50V
IC9102
R9111
MP4460DQ-LF-Z EP_GND
22
close to pin
SW_1 BST
1 10
D9100
MBRA340T3G SW_2 VIN_2
2 9
EN VIN_1
3 8
R9117
200K
COMP FREQ
$0.21
4 7
R9100 C9114 1/8W
18K FB GND
150pF 1%
5 6
50V
R9107
150K
L9100
C9108
22UH C9104
22uF
0.1uF
25V
50V
+24V
EXT12V_CTRL
C9102 C9110
3.3uF 0.1uF
50V 50V
P_12V
R9118 R9106
270K 10K
1/16W 1/16W
1% 1%
R9114
20K
1/16W
1%
R9104
43
IC9101
MP5000DQ
GND SOURCE_5
1 10
C9105
470pF
DV/DT SOURCE_4
50V
2 9
L9101
R9101
CB3216PA501E
ENABLE/FAULT SOURCE_3
1K
3 8
C9109
0.1uF
I-LIMIT SOURCE_2
4 7 50V
P_12V
NC SOURCE_1
5 6
11
VCC
C9106 C9107
1uF 22uF
25V
25V
xxLY750H-UA
12V EXT.Power Out
EXT_12V
2013.12.24
20 21
LGE Internal Use Only