22LV2500-SG (CHASSIS:LJ01R) - LG TV Service Manual (repair manual). Page 31

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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.
SMALL_TN_LED_DRIVER
C10008
0.1uF
50V
C10013
1000pF
50V
Q10001
AP18T10GH
S
D
G
R10009
51K 1%
OPT
C10001
2.2uF
50V
C10018
2.2uF
100V
R10019-*1
11K
1/10W
21.5"
C10009
1uF
10V
R10005
100
1/10W
OPT
D10001
PDS5100H-13
R10007
4.7
1/10W
R10017
0.1
1%
C10015
1000pF
50V
R10001
100
1/10W
C10011
1000pF
50V
OPT
L10001
33uH
+24V_LED_driver
C10020
2.2uF
100V
OPT
R10008
16K 1%
PWM_DIM
R10006
390
1/10W
C10016
10uF
100V
OPT
C10003
100pF
50V
IC10000
MAX16814
1
IN
3
COMP
7
SETI
9
SGND
10
DIM
11
OUT1
12
OUT2
13
LEDGND
14
OUT3
15
OUT4
16
CS
17
PGND
18
NDRV
19
DRV
20
VCC
5
FLT
8
RSDT
6
OVP
4
RT
2
EN
21
[EP]PGND/LEDGND
R10004
100K
1/10W
C10004
100pF
50V
C10017
1000pF
50V
C10019
1000pF
50V
R10002
10K
1/10W
OPT
C10006
2200pF
50V
R10014
7.5K
1/8W
C10014
10uF
100V
R10016
3K
1/8W
C10005
0.1uF
50V
WLED_ENABLE
R10019
16K
1/10W
18.5"
C10012
2.2uF
100V
ERROR_OUT
R10012
5.1
OPT
C10002
2.2uF
50V
P10000
10031HR-H06
LGD
1
2
3
4
5
6
7
C10010
1000pF
50V
OPT
R10018
560K
1/10W
R10003
100
1/10W
C10021
0.1uF
50V
R10020
0
1/10W
5%
NON_LGD
R10021
0
1/10W
5%
NON_LGD
R10022
0
1/10W
5%
LGD
R10023
0
1/10W
5%
LGD
C10022
10uF
100V
OPT
C10007
0.33uF
50V
R10011-*1
27K
1/10W
1%
LGD
R10013-*1
27K
1/10W
1%
LGD
R10011
47K
1/10W
1%
AUO_CPT
R10013
51K
1/10W
5%
AUO_CPT
P10001
12507WR-06L
NON_LGD
1
2
3
4
5
6
7
R10010
10K
1/8W
R10024
3.9K
PWM_PULL_DOWN
R10011-*2
59K
1/16W
1%
CMI
R10013-*2
59K
1/16W
1%
CMI
R10019-*2
13K
1/10W
CMI_21.5"
R10015
12
1/10W
5%
R10019-*3
18K
1/10W
CMI_18.5"
LED driver circuit for TN module
Operating Freq.
R111 : 470 --> 390
F=7.35x10^9/RT
R120 : 6.8K --> 3K
2010.06.30. hwson 
for thermal Issue
close to IC10000
R121 : 0.03 --> 0.1
close to IC10000
2010.06.30 HWSON
C106 : 0.68uF --> 0.33uF
R113/R114
C104 : 10uF --> 2.2nF
2010.02.07 for PQ/19V_LED
ESD protection solution
must be modifed
wafer modify & resister add
must be modifed
LED driver
2011.05.09
29
S7LR SMALL TN
56.0
50mA_Typ
61.35mA
57.6V_Max
34.0
51.2
47.6
11Kohm
CMI_18.5
52.8
36.0V_Max
60mA_Typ
63.85V
11Kohm
Remark
560Kohm
52.8V_Typ
57.6
560Kohm
560Kohm
CMI_21.5_FHD
28.0
120mA_Max
63mA_Max
Remark
34.0
44.8V_Typ
50.85mA
Max
R10013
48.0
44.28V
47Kohm
39.2
LGD_21.5_FHD
30.0
Typ
39.50V
ILED spec
560Kohm
16Kohm
34.0V_Max
OVP = 1.23*(1+R1/R2)
AUO_18.5
R10018
Module
56mA_Max
34.0V_Typ
R10019
560Kohm
110mA_Typ
Vs spec
Module
44.8
CMI_21.5
54.21V
CMI_18.5_HD
LGD_21.5
51Kohm
R10011
47.6V_Max
51.2V_Typ
63.85V
AUO_21.5_FHD
AUO_18.5_HD
27Kohm
56.0V_Max
59Kohm
33.0
13Kohm
111.11mA
AUO_21.5
-
min
27Kohm
59Kohm
ILED = 1500/RSETI
36.0
33.0V_Typ
18Kohm
CPT_21.5_FHD
52.0V_Typ
560Kohm
57.6V_Max
CPT_21.5
11Kohm
63.85V
52.0
57.6
46.4
AUO_18.5
Module
AUO_21.5
CPT_21.5
CMI_21.5
CMI_18.5
LGD_21.5
Forward voltage spec.
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