DOWNLOAD LG 37LG50 (CHASSIS:LA84A) Service Manual ↓ Size: 4.28 MB | Pages: 29 in PDF or view online for FREE

Model
37LG50 (CHASSIS:LA84A)
Pages
29
Size
4.28 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
37lg50-chassis-la84a.pdf
Date

LG 37LG50 (CHASSIS:LA84A) Service Manual ▷ View online

- 14 -
300
510
500
120
121
122
200
200T
200N
800
900
801
802
803
804
805
806
550
530
810
520
540
820
400
901
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by       in the Schematic Diagram and EXPLODED VIEW. 
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. 
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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.
GND
TP9005
0
R2905
0
R2906
GND
GND
LVDS_TX_OUT_PINPORT_TB1-_TO_TXA2+
1 : E 4
LVDS_TX_OUT_PINPORT_TB3-_TO_TXA1+
1 : E 4
0
R2910
0
R2922
0
R2908
LVDS_TX_OUT_PINPORT_TB3+_TO_TXA1-
1 : E 4
0
R2921
LVDS_TX_OUT_PINPORT_TB1+_TO_TXA2-
1 : E 4
LVDS_TX_OUT_PINPORT_TB4+_TO_TXA0-
1 : E 5
LVDS_TX_OUT_PINPORT_TB4-_TO_TXA0+
1 : E 5
0
R2909
0
R2923
LVDS_TX_OUT_PINPORT_TB0-_TO_TXA4+
1 : E 4
LVDS_TX_OUT_PINPORT_TB2+_TO_TXA3-
1 : E 4
LVDS_TX_OUT_PINPORT_TB0+_TO_TXA4-
1 : E 4
0
R2912
FHD
0
R2925
FHD
0
R2911
LVDS_TX_OUT_PINPORT_TB2-_TO_TXA3+
1 : E 4
0
R2924
LVDS_TX_OUT_PINPORT_TBC+_TO_TXAC-
1 : E 5
LVDS_TX_OUT_PINPORT_TBC-_TO_TXAC+
1 : E 5
22
R2913
22
R2926
+3.3V
4.7K
R2932
M o d u l e   S e l e c t i o n   H i g h _ 4 . 7 K
GND
0
READY
R2919
0
R2915
FHD
0
R2927 FHD
0
R2916
FHD
LVDS_TX_OUT_PINPORT_TA3+_TO_TXB1-
1 : E 4
0
R2914 FHD
LVDS_TX_OUT_PINPORT_TA3-_TO_TXB1+
1 : E 4
0
R2929
FHD
LVDS_TX_OUT_PINPORT_TA4-_TO_TXB0+
1 : E 4
LVDS_TX_OUT_PINPORT_TA1-_TO_TXB2+
1 : E 3
LVDS_TX_OUT_PINPORT_TA1+_TO_TXB2-
1 : E 4
0
R2928
FHD
LVDS_TX_OUT_PINPORT_TA4+_TO_TXB0-
1 : E 4
LVDS_TX_OUT_PINPORT_TAC+_TO_TXBC-
1 : E 5
LVDS_TX_OUT_PINPORT_TAC-TO_TXBC+
1 : E 5
0
R2930
FHD
LVDS_TX_OUT_PINPORT_TA2+_TO_TXB3-
1 : E 4
LVDS_TX_OUT_PINPORT_TA0+_TO_TXB4-
1 : E 3
LVDS_TX_OUT_PINPORT_TA0-_TO_TXB4+
1 : E 3
0
R2917
FHD
LVDS_TX_OUT_PINPORT_TA2-_TO_TXB3+
1 : E 4
0
R2918
FHD
0
R2931
FHD
GND
1K
R922
M o d u l e   S e l e c t i o n   L o w
47K
R9904
GND
1K
R900
2SC3875S
Q902
E
B
C
47K
R9905
TP9001
GND
1uF
25V
C917
+12.0V
SI4925BDY
Q901
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
1uF
16V
C918
LVDS_PANEL_CTRL
4:N6
+3.3V
4.7K
S_Only_32CMO(HD)
R9906
SMW200-26C
HD
P902
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
25
26
4.7K
S_only_37LPL(FHD)
R9907
GND
+3.3V
0
R9908
S_Common_without_37LPL(FHD)
47uF
16V
C922
READY
TP9004
TP9014
TP9013
TP9010
TP9009
TP9012
TP9006
TP9007
TP9011
TP9002
TP9003
TP9000
UBW2012-121F
L910
SMW200-40C
FHD
P901
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
TP9008
0
R2907
300
R2932-*1
M o d u l e   S e l e c t i o n   H i g h _ 3 0 0
L V D S   d a t a   f o r m a t   s e l
HD: PIN9 / FHD: PIN7
 
Low: VESA
High: JEIDA
 
High(300)
26"AUO(HD)
32"CMO(HD)
42"AUO(HD)
 
High(4.7K)
37"LPL(HD)
37"LPL(FHD)
42"AUO(FHD)
47"CMO(FHD)
52"Sharp(FHD)
FRC Select
HD:PIN30 / FHD:PIN27
 
Low: FRC OFF
High: FRC ON
 
High
37LPL(FHD) ONLY
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