LG 31MU97 Service Manual page 31

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 rights reserved.
Only for training and service purposes
THUNDER BOLT POWER
+19V
OPT
R1803
100K
TBT OPT
2014.05.26
47K->75K IC1800
MPS recommend
MP2315GJ
TBT OPT
R1800
75K AAM
1 8
IN
2 7
NEW
TBT OPT TBT OPT SW
3 6
C1800 C1803
10uF 0.1uF
50V 3A
25V
GND
4 5
2014.06.24
Derating issue
1005->1608
OPT
R1804
100K
TBT OPT
2014.05.26
IC1801
47K->75K
MPS recommend MP2315GJ
TBT OPT
R1801
75K AAM
1 8
IN
2 7
NEW
SW
TBT OPT TBT OPT
3 6
C1801 C1804
10uF 0.1uF
3A
25V 50V
GND
4 5
2014.06.24
Derating issue
1005->1608
OPT
R1805
100K
TBT OPT
IC1802
MP2315GJ
TBT OPT
R1802
47K AAM
1 8
IN
2 7
NEW
TBT OPT TBT OPT SW
3 6
C1805
C1802
0.1uF
10uF
3A
25V 50V
GND
4 5
2014.06.24
Derating issue
1005->1608
TBT OPT
R1812
10K
POWER_CONTROL
FB
TBT OPT
L1800
VCC 15uH
EN/SYNC
TBT OPT
OPT
BST
C1809
R1809
0.1uF
20K
16V
TBT OPT TBT OPT
R1806 R1815
68 33K
TBT OPT
C1806
0.1uF
50V
TBT OPT
R1813
10K
POWER_CONTROL
FB
TBT OPT
L1801
VCC 15uH
EN/SYNC
OPT TBT OPT
BST
C1810
R1810
0.1uF
20K
TBT OPT TBT OPT
16V
R1816
R1807
33K
68
TBT OPT
C1807
0.1uF
50V
TBT OPT
R1814
10K
POWER_CONTROL
2014.05.27
10uH->4.7uH
MPS recommend
FB
TBT OPT
L1802
VCC 4.7uH
EN/SYNC
OPT TBT OPT
BST
TBT OPT
C1811
R1811
0.1uF
TBT OPT
TBT OPT 20K
16V
R1808 R1817
68 33K
TBT OPT
C1808
0.1uF
50V
+THUNDER_12V_1
TBT OPT
R1818
43K
1%
TBT OPT TBT OPT TBT OPT
R1819
C1812
C1815 C1818
100K 0.1uF 10uF 10uF
25V 25V
25V
1%
TBT OPT
TBT OPT
R1820
10K
1%
+THUNDER_12V_2
TBT OPT
R1821
43K
1% TBT OPT
TBT OPT TBT OPT
R1822 C1813
C1816 C1819
100K 0.1uF 10uF 10uF
25V 25V 25V
1%
TBT OPT
TBT OPT
R1823
10K
1%
+3.3V_UART
+THUNDER_3.3V
TBT OPT
R1824
47K
1%
TBT OPT TBT OPT TBT OPT
R1825
C1814
C1817 C1820
TBT OPT
0.1uF
1.5K 10uF 10uF
10V 10V ZD1800
16V
1%
5V
TBT OPT
R1826
15K
1%
UHD MODEL
THUNDER BOLT POWER
2014.2.14
18 18
LGE Internal Use Only