LG 32LN52 Series Service Manual page 34

+24V_LED_DRIVER
C6900
470uF
35V
NRA
R6979 R6978 R6977 R6976 R6975
150 150 150 150 150
MODEL T6900 Q6902 R6915
32 ROW/POLA
13I-DD01 FDT86106 51K
400mA
42 ROW
13I-DD02 STN4NF20L 75K
285mA
42 POLA
13I-DD02 STN4NF20L 68K->51K
300mA
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 © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
PATTERN WIDTH 10mm
To bo obsolete
42inch_Adapter OPT OPT OPT
C6915 C6916 C6917 C6918 C6919 C6924
470uF 10uF 10uF 10uF 10uF 1000pF
35V 35V 35V 35V 35V 630V
NRA
R6974 R6973 R6938 R6939 R6940 R6941 R6942 R6943 R6944
150 150 150 150 150 150 150 150 150
R6935 R6911
0 22K
32inch_Adapter
0 12K
R6903-*1
47
20K 12K
R6900
5.1K
WLED_ENABLE
R6901
10
+12V
C6901 R6902 C6902
0.1uF 100K 0.47uF
50V 50V
32inch_Adapter
T6900
L6900
13I-DD01
D6903 BFS3550R2BD8G
SF20D600D2
A2
1 4
C L6901
BFS3550R2BD8G
A1
OPT
3 2
C6925
1000pF
32inch_Adapter
630V
C6907
33uF
42inch_Adapter
160V
T6900-*1
13I-DD02
1 4
42inch_Adapter
C6907-*1
3 2 15uF
250V
R6945
150
32inch_Adapter
R6905-*1 Q6901
10
FDD390N15
D
D6900 42inch_Adapter
1N4148W R6905
22 G
S
Q6900
R6907
MMBT2907ALT1G
E 10K
B
42inch_Adapter
R6903
C
33
R6906
IC6900
150
MAP3202SIRH
EN FBN
1 14
VCC FBP
2 13
32_Adapter/42_POLA_Adapter
GATE COMP
3 12
GND PWMI
4 11
32_Adapter/42_ROW_Adapter
CS OVP
5 10
RT PWMO
6 9
SYNC REF
7 8
32inch_Adapter
R6911
22K
1%
42inch_Adapter
R6911-*1
R6904 C6903 C6905
12K
430K 1000pF 1000pF
1%
1% 50V 50V
32inch_Adapter 42inch_Adapter
OPT
C6908 C6920
C6910 R6918
33uF 15uF
0.047uF 470K
160V 250V
350V 1%
NRA NRA NRA
R6919
42inch_Adapter 470K
C6908-*1 1%
15uF
250V
42_ROW_Adapter
R6915-*1
75K
R6915
1%
51K
1%
R6921
1K
42_POLA_Adapter
R6935-*1
20K 1%
R6935
0
5%
R6920
22K
R6916
R6917 OPT
10K
75K R6922
1%
C6906 C6909 C6911 C6912 C6913 C6914
0.47uF 1000pF 0.01uF 1000pF 1000pF 330pF
16V 50V 50V 50V 50V 50V
NC4_S7LRM
Adapter LED Driver
32":85V
42":175V
LED+ 8
7
5
3
LED-
1
P6900
PWM_DIM
R6924
32inch_Adapter 42inch_Adapter
15K
Q6902 Q6902-*1
D6902 FDT86106LZ STN4NF20L
D D
R6923
1N4148W
1K
G G
S S
R6926
100K
R6925
1K
R6927 R6929 R6931 R6933
4.3
4.3 4.3
4.3
1%
1%
1% 1%
R6928 R6930 R6932 R6934
3.9 3.9 3.9 3.9
1% 1% 1% 1%
2013/04/04
69
LGE Internal Use Only