Sharp LC-40FG5342E Service Manual

25
3.2 Wiring diagram of power supply
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
GND
12V
12V
!
12
PCB101A
RB135
CB109
CB110
RB134
GNDSGND
!
CYB3
GND
12V
1
2
CNB2
LED_FB
OVPGATE
GND
GND
PWM_DIM
GND12V
GND
PIN1
PIN4
PIN5
PIN6
PIN8
GND
VIN
1
GATE
2
GND
3
CS
4
PWM
8
COMP
6
FB
5
OVP
7
UB801
RB801
CB806
RB803
RB806
CB804
CB805
RB804
RB805
CB812
CB803
CB807
CB801
RB816
CS
GND
GND
OVP
LED+
GATE
VBL
RB812
RB810
RB807
RB808
RB814
+
EB803
HS
+
EB801
+
EB802
D
G
S
QB801
RB809
RB818 RB819 RB820 RB821
CB809
CB810
BB801
CS
LED+
LED_FBGND
LED_FB
AK
DB804
RB839 RB837 RB838 RB840
SGND
Vbridge
!
!
!
!
! !
! !
!
FB1
RB1 RB2
RB3 RB4
!
NTCB1
!
!
CYB1
CYB2
DB1 DB2
DB3 DB4
GND
!
CYB4
CYB5
!
12 43
LCB2
! !
!
!
Mylar
ML1
1
1
HS
2
2
HSB3
12V
MB1
1
1
HS
2
2
HSB6
HS
QB101和散热片之间
EVA1 EVA2 EVA3
GD1 GD2 GD3
GL1
GL2 1
1
HS
2
2
HSB4
VBL
LCB1(1~4)
LCB1(2~3)
!
! ! !
位号
工艺
XXX
XXX
XXX
XXX
XXX
XXX
SGND
SGND
SGND
SGND
GND
VBL
GND
12V
Vbridge
BRO
!
!
3 4
PCB101B
RB105
RB107
RB108
RB109
D
G
S
QB101
+
EB106
RB125
RB140
CB117
RB123
DB101
+
EB104
CB101
+
EB102
+
EB105
AK
DB104
RB126
RB127
CB102
AK
DB105
RB110
1
1
3
3
2
2
ZDB1
SGND
RB124
RB114
CB113
RB111
CB116
CB103
RB101RB102
RB115
+
EB101
+
EB103
RB106
CB114
1
3
2
DB102
GND
1
COMP
2
NC
3
CS
4
VCC
5
GATE
6
UB101
BB101
RB128
RB129
SGND
RB104
2 5
6
LB802
DB802
RB148
PWM_DIM PWM_DIM
PWM_DIM
SGND
RB117 RB118
3
1
N
L
CNB1
KA
R
UB102
RB131
RB132
RB133
EVA4 EVA5 EVA6
NTCB2
SGND
BRO
RB143
RB141
RB142
CB111
+
EB1
1 4
2 3
LCB3
LB801
1 4
2 3
LCB1
RB103
QB102
L
L
L
DB801
LED+
LED_FB
LED_FB
LED+
RB845
1 2
CNB823
1 2 3
CNB833
1 2
CNB822
1 2 3
CNB832
1 2
CNB821
1 2 3
CNB831
T3.15AL 250V~
TP-TDT
i
HOT
i
HOT
TP.XXX.PXX AXXX
Model Name:
CHK'D:
DATE:
VERSION:
DATE:
DRAWN:
XXX 2015-0X-XX
V1.0
XXX 2015-0X-XX
i
POWER
SGND
HS
HSB1
HS
HSB2
CB808
CB118
CXB1
CB115
CB120
AK
DB106
JP1
JP2
6
4
1
2
10
9
11
7
5
TB101
1
1
HS
2
2
HSB5
HS
!
DB107
DB108
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC NC
NC
NC

Sharp LC-40FG5342E Specifications

General

Brand	Sharp
Model	LC-40FG5342E
Category	TV
Language	English