Toshiba 32L310U20, Service Manual

Page: 53 / 68

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C C
B B
A A
TP.MS3553.PB962A
Model Name:
CHK'D:
DATE:
VERSION:
DATE:
DRAWN: 邓荣杰
2018-11-27
V1.0
杨兴建
GND
12V
!
1
2
P
C
B
1
0
1
A
L
T
V
-8
1
7
S
-T
A
-B
CB109
25V,0.22uF
CB110
RB134
4K7ohm
SGND
SGND
SGND
SGND
SGND
GND
VBL
GND
12V
Vbridge
BRO
!
!
GND
1
COMP
2
NC
3
CS
4
VCC
5
GATE
6
UB101
SR11 GL
3
4
PCB101B
L
T
V
-8
1
7
S
-T
A
-B
RB107
20ohm
C
B
1
0
2
0
.1
u
F
-5
0
V
CB117
1000pF,200V
RB129
47ohm
+
E
B
1
0
4
3
5
V
,3
3
0
u
F
R
B
11
6
C
B
11
3
RB128
47ohm
A
K
D
B
1
0
4
1
A
,1
0
0
0
V
SGND
RB124
68ohm
R
B
1
4
0
5
1
K
o
h
m
C
B
1
0
3
1
0
0
0
p
F
-5
0
V
SGND
RB101
330Kohm
RB102
330Kohm
R
B
115
+
EB106
10uF-50V
+
E
B
1
0
1
25V,470uF
RB106
68ohm
C
B
11
4
4
0
0
V
,4
7
0
0
p
F
R
B
1
0
3
6
K
8
o
h
m
BB101
磁珠
,BEAD,70ohm
R
B
1
0
4
4
7
K
o
h
m
!
GND
SGND
!
GND
12V
1
2
CNB2
连接插座
,connect jack,2Pin,D2.0,D,Beige,L=2.8mm,DIP
1
1
HS
2
2
HSB3
12V
EB1底部
!
原理图中未体现的辅料及特殊生产工艺
位号
工艺
卧倒
架高
XXX
XXX
EB1
XXX
XXX
DB801,DB103
SGND
BRO
RB141
RB142
R
B
117
10ohm
R
B
118
10ohm
A K
DB106
FR107G
K
A
R
UB102
BR431M-A
RB131
2Kohm
RB132
1K2ohm
RB133
10Kohm
CB111
L-3
L-3
D
G
S
QB101
7A,650V,,TPD65R600C
R
B
11
9
1
0
o
h
m
TP-TDT
i
HOT
i
POWER
RB130
20ohm
3
1
5
6
9
7
8
10
11
2
TB101
SYEQ2612-T004
GL1
硅胶
,0.5g,
通用
,60,
白色
R
B
114
4R
7ohm
DB111
215mA,85V
DB101
10A,150V,HBR10150SS
R
B
1
4
8
3
W
,0
.3
6
o
h
m
RB105
510ohm
!
CYB3
Y
电容
470pF,400VAC
RB109
10Kohm
D_QB101
Vrms=380
+
E
B
1
25
0
V
,1
5
0
u
F
!
RB125
68ohm
RB126
68ohm
RB127
68ohm
SGND
GND
Vbridge
L
!
!
!
R
B
1
1
M
2
o
h
m
NTCB1
5A,2.5ohm
!
R
B
2
1
M
2
o
h
m
R
B
3
1
M
2
o
h
m
R
B
4
1
M
2
o
h
m
!
C
X
B
1
2
7
5
V
A
C
,0
.4
7
u
F
M
O
V
B
1
! !
!
! !
!
N
3
1
N
L
CNB1
2Pin,D7.92,L
DB3
RL207G
DB4
RL207G
DB1
RL207G
DB2
RL207G
GND
!
!
! !
! !
Vrms=264
Vrms=264
Vrms=264
Vrms=380
RB135 3Kohm
RB136 15Kohm
C
B
101
220pF
-50V
C
B
104
220pF
--
50V
+
E
B
105
35V
,330uF
+
E
B
102
1
3
2
DB102
10A,150V,HBR10150SS
A
A
K
K
DB103
2018-11-27
JP1
JP2
!
!
i
HOT
CYB1
Y
电容
470pF,400VAC
CYB2
Y
电容
470pF,400VAC
R
B
1
8
1
1
0
0
K
o
h
m
R
B
1
8
3
1
0
0
K
o
h
m
R
B
1
8
0
1
0
0
K
o
h
m
R
B
1
8
2
1
0
0
K
o
h
m
1
1
HS
2
2
HSB2
D_QB101
与
TV
端连接网络
PWM_DIM BL_ON BL_ON PWM_DIM
PWM_DIM BL_ON
1
1
HS
2
2
HSB4
D_QB801
!
辅料及结构件等
200HZ/3.3V，占空比0-100%可调
背光插座
A1.0
GND
LED_OVP
LED+
LED_GATE
VBL
RB811
10ohm-1206-±5%-1/4W
R
B
8
1
0
1
0
o
h
m
RB807
20ohm
R
B
8
0
8
1
0
K
o
h
m
DB809 NC
RB809 NC
D_QB801
R
B
802
10K
ohm
R
B
801
1K
ohm
RB827
510Kohm
R
B
813
NC
GND
PWM_DIM
C
B
8
0
6
1
0
0
0
p
F
-5
0
V
GND
RB804
270ohm
CB811 NC
LED_GATE
12V
GND
LED_OVP
C
B
8
1
3
0
.1
u
F
-5
0
V
C
B
8
1
2
1
0
0
0
p
F
-5
0
V
DB806
215mA,85V
BL_ON
GND
CB805
25V,0.47uF
LED_CS
R
B
8
1
8
0.3ohm
R
B
8
1
9
0.3ohm
R
B
8
2
0
0.3ohm
R
B
8
2
1
0.3ohm
RB805
1Kohm
LED_CS
C
B
8
0
30
.1
u
F
-5
0
V
RB806
510Kohm
LED_FB
LED_OVP
COMP
1
EN
2
PWM
3
GND
4
GATE
14
OVP
12
OSC
5
ISENSE
13
VIN
15
VCC
16
LED3
9
LED2
10
LED1
11
ISET
6
ADIM
7
LED4
8
E
P
A
D
1
7
Vovp_ov:1.20
～
1.26V
UVLO_max:4.4V
Vstart_min:5V
Vds:55V
Vds:55V
Vds:55V Vds:55V
ISENSE_v
：
145
～
215mV
Viset:1.195 ～ 1.245V
UB801
PWM
控制器
,IMP3398AGF-Z
D
B
802
VBL
LED_FB
LED+
BB801
磁珠
,BEAD,30ohmMin
R
B
8
2
2
1
3
K
o
h
m
R
B
8
1
2
1
3
K
o
h
m
GND
C
B
8
0
4
2
2
0
p
F
-5
0
V
C
B
8
0
7
2
2
0
pF
--
5
0
V
C
B
8
0
2
2
2
0
p
F
-5
0
V
RB816
2R2ohm
D
G
S
QB801
15A,100V,PA110BDA
A K
DB801
3A,100V,SR3100
GND
1
1
3
3
2
2
ZB801
15V,300mW
R
B
8
1
4
3
3
0
K
o
h
m
DC Vrms=44V
R
B
803
7.
5K
ohm
+
E
B
801
63V,100uF
LED+ LED_FB
1 2 3 4
CNB801
连接插座
,connect jack,4Pin,D2.0,D
LED_FB
LB801
DR12SYDR1212-L070uA
LB802 NC
LED_FB
C
B
8
0
9
220PF-200V
CB810
220P
F
-200V
1 4
2 3 LCB3
UU10.5,18mH
T5AH 250V~
FB1
5A,250VAC
TP_L
TP_N
TP_VBL-
TP_12VA- TP_12VB-
TP_LED-
CB118
1KV,1000pF
C
B
11
6
1
K
V
,1
0
0
p
F
1 4
2 3
LCB1
T9×5×3,230uH
C
B
1
2
0
630V,4700pF
CB808 NC
RB150
20ohm
N
C
NC
!
NC
NC
NC
NC
NC
N
C
N
C
N
C
N
C
NC
N
C