Toshiba 40LV733G Service Manual page 23

A
MAIN POWER
1
CN701 CN703
FB139
1
FB103
1 1
2 2
3 3
1
FB105
4 4
5 5
6 6 1
4
FB104
7 7
8 8
9 9 1
FB106 120R/6000mA
10 10
11
NC/CONN
12
13 1
FB107
1
CONN FB108
STANDBY POWER 3V3SB
U101
+5VSB
G1117-33T63Uf 3V3SB
3 2
VI VO
3
C106 + C107
100uF 10V
1uF 25V
IC
DIGITAL POWER DVDD3V3
G1084-33TU3Uf
TO-263T
U104
+5V_SW
3 2
VIN VOUT
C116
+
1uF 25V
2
ANALOG POWER AVDD1V25
DVDD3V3
U105 G1117T63Uf
1 2 3 2
VIN VOUT
FB135220R/2000mA
C547
R128
1uF 25V
NC
1
R129
0R01 1/10W
A
B
INVERTER_ON_OFF
BRIGHT_ADJ
2
120R/6000mA
+5VSB
2
120R/6000mA
2
120R/6000mA
2
(+16V) for 22"
120R/6000mA
HI = > POWER_ON
+12VSB
2
LO = > POWER_OFF
AC_DET#
R107
1K 1/10W
2 R108
+24V
220R/2000mA
100K 1/10W
C104
2
1uF 25V
220R/2000mA
U607
G1117-33T43UF
AVDD3V3
+5V_SW
+ C109
100uF 10V
C546
1uF 25V
DVDD3V3
R102
DVDD3V3
4.7K 1/10W
C117
AC_DET
470uF/10V
R104
AC_DET# 100R 1/10W 5% Q102
C552
BC847C
0.1uF 50V
C550
R749
NC/0.1uF 50V
68K 1/10W
+5VSB
C110
1uF 25V
AVDD1V25
C114
1uF 25V
1
+ C126
2
3
100uF 25V C120
4
0.1uF 50V
3V3SB
R626
1.25 x (1+ 0/110) = 1.25V
1K 1/10W
OPWRSB
B
C
DVDD3V3
R137
NC/10K 1/10W
R106
NC/10K 1/10W
STANDBY 7
STANDBY
C101
NC/4.7UF 10V
DVDD3V3 +5V_SW DVDD3V3
R742
NC/15K 1/10W
R110 R111
1K 1/10W
0303
R109
R112
4.7K 1/10W
5.6K 1/10W
BL_DIMMING R113 Q104
1
MMBT3904
0R01 1/10W
R114
4.7K 1/10W
BRIGHT ADJUST
DVDD3V3
BL_ON/OFF
Inverter on: Low
R117 NC/4K7 1/10W
10K 1/10W
Inverter off:
High
R118
BL_ON/OFF
4.7K 1/10W
Add R904 for Under 5W 9/22
INVERTER ON/OFF
FB109
33 OHM
C111
+ C112
1uF 25V
100uF/16V
R120
10R 1/10W 5%
U103
9
Thermal Pad
8
VCC VIN
L101 4.7uH
7
REF LX
6
GND PGND
C118 NC/1nF 50V
5
FB EN
100R 1/10W 5%
R124
G5627F11U
R125
1K8 1/10W 1%
R126
R1
C125
4.7K 1/10W
R2
1uF 16V
R127
10K 1/10W
C
D
+12V
1 2
+12VSB
FB101 220R/2000mA
1 2
FB102 220R/2000mA
4,5,6,7,8,9,10,11,12,13,14,15,16,17
Q101
C102
NC/4.7UF 10V
NC/Si5403DC-T1-GE3
R105
NC/51K 1/10W 5%
Q103 C323
+
NC/BC847C FOR
470uF/16V
19"22"
16V 26",32",40"-14
SWITCH
BKL
CONTROL
R110
TYPE
PWM
BL_DIM(PWM for Bright_Adj):
N/C
CONTROL
Max:3.3V
Min: 0V
CMO26W/
BRIGHT_ADJ SEC32F/SEC40F
N/C
DC-CONTROL
(3V3)
C105 SEC32W
22UF 10V
AP12
4K7
DC-CONTROL
(5V)
+5V_SW DVDD3V3
R115 R116
2K 1/10W
INVERTER_ON_OFF
Q105
1
MMBT3904
C108
10uF 10V
VCCK
C122 C119
+
VCCK
330UF6.3V
C123
R123
2.7K 1/10W
0.1uF 50V
10uF 10V
Vout = 0.8x(R1+R2)/R2
+5V_STB(+5V1) TO +5V_SW BY OPWRSB
D
E
6,11,14,16,17 +5VSB +5VSB
15 +12V +12V
6,16 3V3SB 3V3SB
4,5,6,7,9,17 DVDD3V3 DVDD3V3
8,9,15,17 AVDD3V3 AVDD3V3
4,5,7,8,15,17 AVDD1V25 AVDD1V25
4 VCCK VCCK
GND
Other Control Interface
OPWRSB
6 OPWRSB
BL_DIMMING
7 BL_DIMMING
BL_ON/OFF
8 BL_ON/OFF
AC_DET
7 AC_DET
REMARK
R111 R112
R742 C105
100R N/C N/C
4K7
SEC32W AP12
OLD Inverter lmp
1K
5K6 N/C 22U
260K
NEW Inverter
N/C
22U
5K6
15K
lmp 28K
INVERTER
R115 R116
ON/OFF
3V3 2K
N/C
5V
4K7 N/C
+5VSB +5V_SW
Q106
C113
Si5403DC-T1-GE3
1uF 16V
R121
51K 1/10W + C115
330uF 10V
Q107
BC847C
C121
4.7UF 10V
MAIN [3] SYSTEM POWER
E
4
3
2
1