22LN4500 (CHASSIS:LD31A) - LG TV Service Manual (repair manual). Page 27

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THERMAL
THERMAL
THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
LED DRIVER
11     12
R1132
220K 1%
23.6"
C1127
1uF
100V
23.6"
P1101
SM14B-SRSS-TB
24V
24V
24V
24V
24V
GND
GND
GND
GND
GND
ERROR_OUT
INV_ON
NC
PWN_DIM
GND
21.6"/26"
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
L1100
10uH
21.6"/26"
R1113
3.3
1/16W
21.6"/26"
VOUT
Q1101
AOD478
21.6"/26"
S
D
G
+19V
WLED_ENABLE
R1102
10K
21.6"/26"
C1139
1uF
50V
OPT
JP1105
R1115
0.1
1W
21.6"/26"
R1136
0
23.6"
+24V_BLU
C1124
33uF
100V
23.6"
C1126
0.22uF
16V
21.6"/26"
C1117
2200pF
50V
21.6"/26"
IC1101
TPS40210DGQR
21.6"/26"
3
DIS/EN
2
SS
4
COMP
1
RC
5
FB
6
GND
7
ISNS
8
GDRV
9
BP
10
VDD
11
[EP]
C1115
0.1uF
50V
OPT
C1120
47pF
50V
21.6"/26"
C1111
100pF
50V
23.6"
ERROR_OUT
Q1103
AOD478
23.6"
S
D
G
R1106
1.5K
1/16W
21.6"/26"
C1118
47uF
25V
23.6"
R1105
10K
1/16W
21.6"/26"
WLED_DIM_ADJ
C1114
1000pF
50V
23.6"
C1136
68uF
35V
21.6"/26"
JP1107
R1121
100
23.6"
C1130
1uF
100V
OPT
D1103
100V
BR210
23.6"
JP1104
JP1109
R1133
1.5K 1%
23.6"
VOUT
R1114
0.1
1W
21.6"/26"
C1134
100pF
50V
21.6"/26"
R1134
30K 1%
23.6"
P1100
05002HR-H12J05
23.6"
1
2
3
4
5
6
7
8
9
10
11
12
13
C1122
1uF
25V
23.6"
JP1088
JP1100
+3.3V_ST
R1100
510K
1/8W
1%
23.6"
C1116
100pF
50V
23.6"
WLED_ENABLE
R1123
100K
1%
23.6"
R1137
0.1
1W
1%
23.6"
+19V
JP1111
R1101
4.7K
21.6"/26"
L1101
33uH
23.6"
Q1102
MMBT3904(NXP)
21.6"/26"
E
B
C
WLED_DIM_ADJ
JP1110
JP1108
C1128
1uF
100V
23.6"
R1127
100
23.6"
C1129
1uF
100V
OPT
R1131
39K 1%
23.6"
C1125
0.047uF
25V
23.6"
R1128
22K
1%
23.6"
C1123
4700pF
50V
23.6"
JP1103
C1135
68uF
35V
21.6"/26"
R1135
1.5K 1%
23.6"
R1111
1K
1/16W
21.6"/26"
C1113
10uF
25V
21.6"/26"
C1119
100pF
50V
21.6"/26"
BLU_CURRENT_CTL
R
1
1
0
3
1
0
K
1
/
1
6
W
21.6"/26"
C1121
4.7uF
50V
23.6"
JP1102
JP1101
C1137
1uF
50V
21.6"/26"
R1125
24K
1%
23.6"
+24V_BLU
R1109
30K
1/16W
21.6"/26"
C1112
47uF
25V
21.6"/26"
MULTI_ON
JP1106
C1138
1uF
50V
21.6"/26"
D1101
100V
BR210
21.6"/26"
R1110
100
1/16W
OPT
R1122
100K
23.6"
R1108
51K
1/16W
21.6"/26"
R1104
470K
1/16W
21.6"/26"
C1133
1uF
10V
OPT
R1124
1.5K
1%
23.6"
R1107
220K
1/16W
21.6"/26"
R1129
100K
1%
23.6"
R1112
0
1/16W
OPT
IC1100
DT1641AS
23.6"
3
NC_1
2
OVP
4
PGND_1
1
EN
6
PDIM
5
PGND_2
7
RISET
8
LS8
9
LS7
10
LS6
11
LS5
12
NC_2
13
LGND
14
LS4
15
LS3
16
LS2
17
LS1
18
RT
19
COMP
20
RSS
21
NDRV
22
CS
23
VREF
24
VIN
25
[EP]GND
C1132
0.1uF
25V
21.6"/26"
C1131
1uF
25V
21.6"/26"
NC4_S7LRM
LED DRIVER
12.03.08
EAE61103401 2.2uF MLCC 1ea(3225)
->EAE61381601 1uF MLCC 2ea(3216)
11.11.15
1K->100ohm
1000pF->100pF
11.12.02
22uF 2EA->47uF 1EA
EAE60365101->EAE61423901
12.08.11
270K+270K
->510K 2012size 
11.11.15
1000pF->100pF
12.08.11
24K->22K
11.10.27
Parallel 0ohm DEL
12.05.17 To improve audible noise
C1103 2200pF->47pF
C1105 47pF->OPT
11.11.29
Diode change canceled(111202)
EAH61112701->EAH61533501
12.07.03 To improve backlight blinking
C1103 47pF->2200pF
C1105 47pF->Apply
R1103 18K->470K
12.05.17
C1110 EAE62721801 33uF,
C1111 0CH8106J691 10uF
-> EAE60171701 68uF 2EA
12.01.10
Main AOD478
Sub AP18T10GH
11.11.29
0DSKE00048A Diode DEL
12.10.16
EAN62407801->EAN62656301
121118
C1132 
0CK104BF56A
->0CK104BH56A
121118
C1132 
0CK105CD56A
->0CK105CK56A
EAX65077303
2013.1.14
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