Toshiba 48L1433DG Service Manual page 21

1 2
BTB
20 19
3V3_VCC 18 17
3V3_VCC
A 3V3_STBY 24V_VCC_AU
16 15 5V_STBY
12V_STBY 14 13 12V_STBY
5V_VCC
5V_VCC 12 11
12V_STBY 10 9 5V_STBY
DIMMING
8 7
6 5 BACKLIGHT_ON/OFF S33
STBY_ON/OFF
power_pin3
4 3
nc
S32
power_pin1
2 1 STBY_ON/OFF_NOT
S25
CN3
S8
24V_VCC_AU
B
power cable
CN2
2 1
3V3_VCC
4 3 3V3_VCC
3V3_STBY 6 5 24V_VCC_AU
12V_STBY 8 7 12V_STBY
10 9 5V_VCC
5V_VCC
5V_STBY
12V_STBY 12 11
C 14 13 DIMMING
16 15 BACKLIGHT_ON/OFF
power_pin3
18 17
power_pin1
20 19
D
ADAPTER SOCKET
E
W_ADAPTER
5
4
3
JK2
TP35
2
TP34
1
F
1 2
3
LDO1
30069495 AP2111 ???
U21
TP72
1
LM1117
3 2
3V3_STBY
IN OUT
ADJ VOUT C119
2 3V3_STBY
100n
1 4
1
10V
VDDC
VOUT1
1V2_VCC
1V5_VCC
VOUT2
INVERTER SOCKET
1V5_DDR0
!
CN8
S5
12V_VCC
1 DC/DC2
TP38
2 FS4
12V_INV
3 7A/32VDC
TP51
!
4
5 DIMMING
6 BACKLIGHT_ON/OFF
2V5_VCC
LDO2
S81
1 8
PROTECT POK GND
U5
C152
R45
2 7
5V_VCC 2 10k 1 EN FB
APL5910
100n
60R
3 6
3V3_VCC 22u VIN VOUT 10V
1 2
F63
4 5
5V_VCC VCNTL NC
2 S6 1
C151
10u
10V
5V_STBY
10k
2
R163
2k2
R77
!
FS1
R44
1 10k 2
7A/32VDC
R41
Q19
1 1k 2
BC848B
C5
12V_STBY
Q6
220n 10V
BC848B
3
4 5
DC/DC1
R822
560R
50V
4n7
C1207
FB1
C1187
C460
10u 10u
VIN1
16V
16V
S85
F53
1 2
12V_VCC
60R
L39
10u
TP105
L40
TP106
4u7
C1206
S86 C1188 C461
4n7
10u 10u
50V
16V 16V
FB2
VIN2
R101
560R
STBY_ON/OFF
R2
R290 R288
STBY_ON/OFF_NOT
22k 100R
R289
R1
47k 3V3_STBY
2V5_VCC
TP108 STBY_ON/OFF_NOT
3V3_VCC
Q47
TPS_ENABLE
R164
BC848B 1
12V_STBY 10k
10k
2 1
R884
1
Q46
BC848B
F4
DC/DC4
1 2
12V_VCC
60R
0R
F3
1 2
12V_STBY
60R
C131 C130
R49 22u 22u
16V 16V
12V_VCC 2 10k 1
2 1
12V_STBY 10k
R48
TPS_ENABLE
1 EN 8
VIN
U9 C92 L3 10u
2 7
VFB VBST 16V
VFB
12V_STBY
TPS54528 100n
3 6
VREG5 SSW
4 5
12V_INV
VSS GND
C128
1u
16V
TPS54528
4 5
6
50V 50V
4n7 4n7
C475 C472
R394 R644
100k 120k
16V
EN1 EN3
11
47n
BST BST3
12
C205
VIN1 VIN3
13
LX1_0 LX3_1
14
TPS65251
LX1_1 LX3_0
15
U19
LX2_0 GND_2
16
LX2_1 VIN_2
17
VIN2 VIN_1
18
C206
BST2 VIN_0
19
47n
EN2 GND_1
16V
20
R645
120k
C488
10u
C480
16V
C30
4n7
4u7
50V
10V
NC
S91
S90
MOSFET_CONTROL 5V_STBY
R197
STBY_ON/OFF
1 10k 2
R198
1 2
10k
Q11
BC848B
R176
STBY_ON/OFF
1 10k 2 MOSFET_CONTROL
R284
2 3k9
R282
STBY_ON/OFF_NOT
1 10k 2
12V_STBY
C139 22p 50V
VFB
C55
100n R96 R15 R38
16V
120k 4k7 22k
F14
1 2
5V_VCC
60R
F62
1 2
60R
F7
1 2
5V_STBY
60R
C132 C133
22u 22u F10 R46
6V3 6V3 1 2 2
MOSFET_CONTROL 10k
60R
SCH NAME :
DRAWN BY :
6
7 8
DC/DC3
50V
4n7
C1208
16V
40
47n
VIN3
39
C207 60R
12V_VCC
38
2 1
F60
37
L38
F1 60R 3V3_VCC
1 2
36
4u7
TP90
C463 C1191
35
10u 10u
16V 16V
34
VOUT3
33
60R
12V_VCC
32
2 1
F58
31
C1189 C1190
10u FB3
16V 10u 16V
R652
220R
5V_VCC
C137
220u
6V3
25V
5V_VCC
R174
1 2
47R
SW2
R47
Q22
2 10k 1
BC848B
S15
S10 FS2
12V_VCC
7A/32VDC
4A
12V_VCC
R173
1 2
47R
SW1
Q21
1
BC848B
17mb95
A3
10
05_POWER T. SHT:
02-08-2012_15:25
7 8
A
B
C
D
E
F
A X M