ViewSonic VA702B Service Manual - Page 54

Dc Input

Page 54 highlights

1 ADJ VCC5V + C169 100uF/16V C102 0.1/50V U102 FS8860-33PJ 3 VIN VOUT 2 R174 9.1R/2W + C105 100uF/16V/NC 1 ADJ U101 FS8860-18PJ 3 VIN VOUT 2 + 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 ViewSonic Corporation Confidential - Do Not Copy 51 VA702-1_VA702b-1 From Power & Inverter CN101 4500-06 1 2 3 4 5 6 VCC5V BRIGHTNESS ON/OFF C111 + C101 0.1/50V 100uF/16V BRIGHTNESS R104 4K7 C113 1u/16V DIMMER1 ON/OFF C114 0.1/50V R105 4K7 R106 10K VCC5V Q103 R157 PMBT3904 4K7 CCFL_ENABLE ViewSonic Corporation Model Title DC INPUT Date Rev:

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ViewSonic Corporation
Confidential - Do Not Copy
VA702-1_VA702b-1
5
1
Model
Title
Date
Rev:
ViewSonic Corporation
DC INPUT
VCC3.3
+
C106
100uF/16V
VAA3
VCC1.8
Q102
PMBT3906
+
C169
100uF/16V
ON/OFF
VAA2
C102
0.1/50V
VAA2
R170
0
VCC1.8
R169
22K
VLCD
Q103
PMBT3904
C108
0.1/50V
VCC5V
+
C101
100uF/16V
C107
0.1/50V
CN101
4500-06
1
2
3
4
5
6
VLCD
R105
4K7
R157
4K7
R174
9.1R/2W
VCC5V
CCFL_ENABLE
VAA1
Q101
AP2301N
G
D
S
R106
10K
VCC3.3
VCC5V
U101
FS8860-18PJ
3
1
2
VIN
ADJ
VOUT
C110
0.1/50V
DIMMER1
U102
FS8860-33PJ
3
1
2
VIN
ADJ
VOUT
+
C109
100uF/16V
VCC5V
PANEL_ENABLE
VAA1
C113
1u/16V
+
C103
100uF/16V
C111
0.1/50V
VAA4
Q107
PMBT3904
From Power &
Inverter
ON/OFF
+
C105
100uF/16V/NC
R101
10K
C104
0.1/50V
VAA4
VAA3
C114
0.1/50V
BRIGHTNESS
R103
4K7
R104
4K7
BRIGHTNESS