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40
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VA902/b
DC Input
R106
10K
VLCD
BRIGHTNESS
VCC3.3
VAA1
VCC5V
+
C106
100uF/16V
Q103
PMBT3904
VCC5V
C108
0.1/50V
ON/OFF
C111
0.1/50V
+
C101
100uF/16V
VCC5V
VAA2
R176 4K7
Q107
PMBT3904
VCC5V
+
C105
100uF/16V/NC
DIMMER1
C104
0.1/50V
R170
0
ON/OFF
R104
4K7
VCC1.8
VLCD
C114
0.1/50V
VAA3
R105
4K7
VCC1.8
R157
4K7
R177
10K
R103
4K7
PANEL_ENABLE
C110
0.1/50V
Q102
PMBT3906
VAA4
Fr
o
m
P
o
w
e
r &
Inverter
+
C169
100uF/16V
C113
1u/16V
C107
0.1/50V
C102
0.1/50V
VCC5V
Q108
PMBT3904
BRIGHTNESS
U101
FS8860-18PJ
3
1
2
VIN
AD
J
VOUT
VAA2
VAA4
V01
6
2
A4
0921341040
LE1909 (VA902/b)
DC INPUT
2005-06-07
InnoLux
Document Number :
SIZE :
TITLE :
DATE :
SHEET
OF
Rev :
DRAWN BY :
CHECK BY :
APPRO BY :
U102
FS8860-33PJ
3
1
2
VIN
AD
J
VOUT
VAA3
CN101
4500-06
1
2
3
4
5
6
+
C103
100uF/16V
R174
9.1R/2W
CCFL_ENABLE
R175
NC/0
VCC3.3
Q101
AP2301N
G
D
S
VAA1
R101
10K
R169
22K
+
C109
100uF/16V
ViewSonic
VA902/b
Summary of Contents for VA902B - 19" LCD Monitor
Page 32: ...6 Black Screen and backlight turn on 29 ViewSonic Corporation Confidential Do Not Copy VA902 b...
Page 49: ...46 ViewSonic Corporation Confidential Do Not Copy VA902 b 9 PCB Layout Main board Top layout...
Page 50: ...47 ViewSonic Corporation Confidential Do Not Copy VA902 b POWER board...