Schematic Diagrams - ViewSonic N3250w-1L Service Manual

8. Schematic Diagrams

8.1. DC Input
5VSB
C100
R104
0.1U 47K
Q100
UP3_5 R100 47K
1
3 UP3_5 B
SOT
R105
2 23
E
(NC)47K
MMBT3904
12V
P100
L217 L236
1
R201/0805 R201/0805
2
3
4
GNDP
5
6
7
8
GNDP
9
R111 1K
10
11
BL_ON_OFF
12
CON_ 2.5mm_12
L234 L218
R201/0805 R201/0805
5VSB
DC INPUT
C106
C107 +
0.1U
1000U/16V/LowESR
GNDP GNDP
ViewSonic Corporation
Initial pull up
VCC
R514
I100
4 5
G D
3 6
S D
3 2 7
C S D
100K C101
1 8
S D
C102 0.1U
220U/16V
C779 C103 AP9435M
1U 47U/16V
PWM0
5VSB
C105
+
R110
1000U/16V/LowESR 4.7K
UP3_4 High == > OPEN FRAME POWER OFF
POWER_EN
IADJ
Q103
R112 4.7K
1
B
C SOT
3
23
2
E
R113
MMBT3904
(NC)47K
GNDP
56
N3250w-1L
Confidential - Do Not Copy
5VSB
VCC
R101 R102
10K 10K
Q101
R103 BL_ON_OFF
PWM1
1
B
SOT
3
C
4.7K 23
2
E
MMBT3904
VCC
R106
1K
R107
R108 0 IADJ
10K
Q102
R109 C104
1U
1
B
SOT
3
C
4.7K 23
2
E
MMBT3904
Back Light circuit
UP3_4
UP3_4
UP3_4 3
UP3_5
UP3_5 3
PWM0
PWM0 3
PWM1
PWM1 3
HOLE/GND
H101 H100
9 2 9
9 2 9
8 3 8
8 3 8
7 4 7
7 4 7
6 5 6
6 5 6
HOLE/GND
H102 H103
9 2 9
9 2 9
8 3 8
8 3 8
7 4 7
7 4 7
6 5 6
6 5 6
HOLE/GND
H104 H105
9 2 9
9 2 9
8 3 8
8 3 8
7 4 7
7 4 7
6 5 6
6 5 6
PWR_GND
GNDA
AUIO IN/OUT GND DIGITAL GND
HOLE/GND
2
2
3
3
4
4
5
5
HOLE/GND
2
2
3
3
4
4
5
5
HOLE/GND
2
2
3
3
4
4
5
5
PWR_GND