LG 22LT360C Service Manual page 38

+24V_LED_driver
WLED_ENABLE
ERROR_OUT
ILED = 1500/RSETI
AUO_18.5_HD
AUO_21.5_FHD
CPT_21.5_FHD
LGD_21.5_FHD
CMI_18.51_HD
CMI_21.6_FHD
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.
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
L E D d r i v e r c i r c u i t f o r T N m o d u l e
LED_DRIVER LED_DRIVER LED_DRIVER LED_DRIVER
C10001 C10002 C10005 C10021
2.2uF 2.2uF 0.1uF 0.1uF
50V 50V 50V 50V
c l o s e t o I C 1 0 0 0 0
LED_DRIVER
R10007
4 . 7
1/10W
C10008
0.1uF
50V
LED_DRIVER
c l o s e t o I C 1 0 0 0 0
C10009
1uF
2010.06.30. hwson
10V
C104 : 10uF --> 2.2nF f o r t h e r m a l I s s u e
LED_DRIVER
C106 : 0.68uF --> 0.33uF
LED_DRIVER R113/R114
R111 : 470 --> 390
R10001 Operating Freq.
2010.02.07 for PQ/19V_LED
F=7.35x10^9/RT
100
1/10W
COMP
LED_DRIVER
R10004 C10003 LED_DRIVER LED_DRIVER
R10006
100K 100pF
390 R10008
1/10W 50V
1/10W 16K
LED_DRIVER
LED_DRIVER 1%
C10006
2200pF
C10007
50V
0.33uF OPT
50V
R10009
OPT
LED_DRIVER
51K
AUO_CPT
R10005
1% R10011
100
47K
1/10W
1/10W
OPT
R10002
10K
1/10W
R10010
10K
1/8W
LED_DRIVER
LED_DRIVER
R10003
100
1/10W
PWM_DIM
LED_DRIVER
PWM_PULL_DOWN
R10024 C10004
3.9K 100pF
50V
Module ILED spec R10011 R10013 Remark
60mA_Typ
47Kohm 51Kohm 61.35mA
63mA_Max
110mA_Typ
27Kohm 27Kohm 111.11mA
120mA_Max
65mA_Typ
39Kohm 56Kohm 65.24mA
70mA_Max
65mA_Typ
39Kohm 56Kohm 65.24mA
70mA_Max
LED_DRIVER
LED_DRIVER
D10001
L10001
PDS5100H-13
33uH
OPT
R10012 LED_DRIVER
5 . 1 R10018
OPT
560K
C10010
1/10W
1000pF LED_DRIVER D LED_DRIVER
50V R10015 Q10001
12
G AP18T10GH
m u s t b e m o d i f e d S
R10016 LED_DRIVER OPT 1 8 . 5 "
3K R10017 C10011 R10019
1/8W 0 . 1 1000pF 16K
LED_DRIVER 1% 50V 1/10W
m u s t b e m o d i f e d
R120 : 6.8K --> 3K
R 1 2 1 : 0 . 0 3 - - > 0 . 1
2010.06.30 HWSON
IN OUT4
1 15
THERMAL
EN OUT3
2 14
21
IC10000 LEDGND
3 13
MAX16814
RT OUT2
4 12
LED_DRIVER
FLT OUT1
5 11
R10013
51K R10011-*1 R10011-*2 R10011-*3
1/10W 27K 39K 39K
1% 5% 1/10W 1/10W 1/10W
1% 1% 1%
AUO_CPT
LGD CMI_18.5" CMI_21.6"
R10013-*1 R10013-*2 R10013-*3
27K 56K 56K
LED_DRIVER
R10014 1/10W 1/10W 1/10W
7.5K 1% 1% 1%
1/8W LGD CMI_18.5" CMI_21.6"
OVP = 1.23*(1+R1/R2)
Module V s s p e c R10018 R10019 Remark
34.0V_Typ
AUO_18.5 560Kohm 16Kohm 44.28V
36.0V_Max
52.8V_Typ
AUO_21.5 560Kohm 11Kohm 63.85V
57.6V_Max
52.0V_Typ
CPT_21.5 560Kohm 11Kohm 63.85V
57.6V_Max
51.2V_Typ
LGD_21.5 560Kohm 11Kohm 63.85V
56.0V_Max
24.8V_Typ
CMI_18.51 560Kohm 22Kohm 32.54V
27.2V_Max
37.8V_Typ
CMI_21.6 560Kohm 16Kohm 44.28V
40.8V_Max
LED_DRIVER LED_DRIVER LED_DRIVER OPT
C10012 C10014 C10018 C10020
2.2uF 10uF 2.2uF 2.2uF
100V 100V 100V 100V
2 1 . 5 " CMI_21.6" CMI_18.5"
R10019-*1 R10019-*2 R10019-*3
11K 16K 22K
1/10W 1/10W 1/10W
w a f e r m o d i f y & r e s i s t e r a d d
LED_DRIVER_NON_LGD
R10020
0
1/10W
5%
LED_DRIVER_NON_LGD
R10021
0
1/10W
5%
C10013 C10015 C10017 C10019
LED_DRIVER_LGD LED_DRIVER_LGD
1000pF 1000pF 1000pF 1000pF
R10022 R10023
0 0
50V 50V 50V 50V
1/10W 1/10W
5% 5%
LED_DRIVER LED_DRIVER LED_DRIVER LED_DRIVER
E S D p r o t e c t i o n s o l u t i o n
F o r w a r d v o l t a g e s p e c .
Module min Typ Max
AUO_18.5 3 0 . 0 3 4 . 0 3 6 . 0
AUO_21.5 4 8 . 0 5 2 . 8 5 7 . 6
CPT_21.5 4 6 . 4 5 2 . 0 5 7 . 6
LGD_21.5 - 5 1 . 2 5 6 . 0
CMI_18.51 - 2 4 . 8 2 7 . 2
CMI_21.6 3 3 . 6 3 7 . 8 4 0 . 8
GP4L_S7LR2
SMALL_TN_LED_DRIVER
7
6
5
4
3
2
1
10031HR-H06
P10000
LED_DRIVER_LGD
LED_DRIVER_NON_LGD
P10001
12507WR-06L
1
2
3
4
5
6
7
2 0 1 1 / 0 8 / 1 9
29
LGE Internal Use Only