ViewSonic VA902B Service Manual - Page 43

Document Number, TITLE, SHEET, DRAWN BY, CHECK BY, APPRO

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Page 43 highlights

DC Input VCC5V C169 + 100uF/16V C102 0.1/50V 1 ADJ U102 FS8860-33PJ 3 VIN VOUT 2 R174 9.1R/2W U101 FS8860-18PJ 3 VIN VOUT 2 1 ADJ + C105 100uF/16V/NC + C103 100uF/16V C104 0.1/50V VCC3.3 VAA1 VAA2 VAA3 VAA4 VCC3.3 VAA1 VAA2 VAA3 VAA4 VCC1.8 + C106 100uF/16V C107 0.1/50V VCC1.8 VCC5V PANEL_ENABLE C108 0.1/50V R103 4K7 Q101 AP2301N S D R101 G 10K R170 0 Q102 PMBT3906 VLCD VLCD + C109 100uF/16V C110 0.1/50V R169 22K Q107 PMBT3904 From Power & Inverter CN101 4500-06 1 2 3 4 5 6 VCC5V BRIGHTNESS ON/OFF C111 + C101 0.1/50V 100uF/16V BRIGHTNESS R175 NC/0 R176 4K7 R177 10K C113 1u/16V R104 4K7 Q108 PMBT3904 VCC5V DIMMER1 ON/OFF C114 0.1/50V R105 4K7 R106 10K VCC5V Q103 R157 PMBT3904 4K7 CCFL_ENABLE ViewSonIicnnoLux Document Number : 0921341040 TITLE : DC INPUT LE1909 (VA902/bV)A902/b SIZE : A4 APPRO BY : CHECK BY : DATE : SHEET 2 2005-06-07 OF 6 Rev : V01 DRAWN BY : ViewSonic Corporation Confidential - Do Not Copy VA902/b 40

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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
From Power &
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
ADJ
VOUT
VAA2
VAA4
V01
6
2
A4
0921341040
DC INPUT
2005-06-07
Document Number :
SIZE :
TITLE :
DATE :
SHEET
OF
Rev :
DRAWN BY :
CHECK BY :
APPRO BY :
U102
FS8860-33PJ
3
1
2
VIN
ADJ
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