ViewSonic VA2012w Service Manual page 73

FUSE2
1
CN6 CONN 4x2-R
1 2
3 4
GND_A
5 6
BL-ON
7 8
BL-BRIGHT
BL-BRIGHT 4
+12V
R82
+
390K/6/NC
GND_A
+5V VGA-5V DVI-5V
D23
BAT54C-GS08
D24
SSM12LL
L20
BEAD 120/0805
ViewSonic Corporation
0/1210/NC
2
U1
+12V
8
BOOST
GND_A GND_A
7
IS
FUSE1 0/1210
1 2 6
VCC
5
FB
AIC1563
GND_A
R79
GND_A
R80
Max 1.2A 60mil * 3 via
GND_A 1K/6 1%
GND_A
GND_A
BL-ON 4
GND_A
L16
D22
1 2 2 1
C63
RB081L-20/NC 2200pF/6/NC
100UH/NC
R81
R83
560/6/NC 13.3K/1%/NC
U2
8 1
DRI SC
7 2
IPK SE
R84
6 3
VCC TC
1K/1%/NC
5 4
FB GND
C65
330pF/6/NC
AIC1563/NC
GND_A GND_A GND_A
U4
3 2
VIN VOUT
4
1
ADJ/GND 4
LT1117/TO223
U4-A1
3 2
VIN VOUT
1
ADJ/GND L28
BEAD 120/0805
R87
AIC1084/TO252/NC
200/6 1%
C68 +
100uF/25V + C69
R89
100uF/25V
330/6 1%
GND_A
Confidential - Do Not Copy
70
L13
BEAD 120/1206/NC
D19 1SS355
1
DC
R75 47/6
2
DE
R76 330K/6
3
CF
4
GND
2
GND_A GND_A
3K/6 1%
C57 2200pF/6
+18V
C64
0.1uF/6/NC
+
GND_A
GND_A
+5V
MCU-VDD
D25
D26
2 1
3 2 1
RB081L-20
RB081L-20
+
2 1
VA2012wb
D20 C51
0.1uF/6
1SS355
Q6
MMST3906
Max 2.5A 100mil * 4via
L14 1 47UH
2
D21
RB081L-20
GND_A GND_A GND_A
GND_A
U3
3 2
VIN VOUT
1 4
ADJ/GND 4
+5V
LT1117/TO223
U3-A1
L17
3 2
VIN VOUT
BEAD 120/0805
1
ADJ/GND
200/6 1%
+ AIC1084/TO252/NC
R86
330/6 1%
U5-A1
GND_A
3 2
VIN VOUT
1 4
ADJ/GND 4
LT1117/TO223/NC
U5 +1V8 CVDD1V8
L21
3 2
VIN VOUT
BEAD 120/0805
R88
1
ADJ/GND
330/6 1%
+
AIC1084/TO252
R90
150/6 1%
GND_A
+5V
L15
BEAD 120/1206
VGA_3V3
L18
DVDD
BEAD 120/0805
R85
+
L19
ADC_VAA
BEAD 120/0805
ViewSonic Corporation
Scaler Power
Model
Title
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