Schematic Diagrams - ViewSonic VA703b-4 Service Manual

10. Schematic Diagrams

BKLT-VBRI
1
BKLT-EN
2
5V
3
4
5
6
5V
CN1
2.0_11pin
5DVCC
U3
3
VIN
2
VOUT
1117-33/AIC1084-33
5DVCC
R7
4.7K
BKLT-VBRI R8 2K
C10
1uF Q3
KST3904
DGND
BKLT-EN R14 220
+ C11
C70
R16
100nF Q6
47uF_16V/NC
10K/NC
KST3904
ViewSonic Corporation
DGND
C1 C2
100uF_16V
100nF
5DVCC
L1 FEB/1206
3.3V
L2 FEB/1206
3.3DVCC
+
C7 C8
100nF
100uF_16V
DGND
R9 NC
R126 1K
1
VBRI
5DVCC
R12
4.7K
R15 NC
R127 1K
1
INVON
DGND
77
Confidential - Do Not Copy
VA703b-4_VA703m-4
R2 NC/0
R2 NC/0
40mil
J1
3.3V
5V
R3 0/NC
R5 100k
C6
+
R4
10K 100uF_16V
1
ONPANEL_5V
R6
1K
C9
NC
JP1
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
HEADER 13/SM
C132
C131 C130 C129
100nF
100nF 100nF 100nF
MCU_VCC
R10 R11
330 330
Q4 R13 1K
1
LED2
2N3906
LED-2
Q5
2N3906
R17 1K
1
LED1
LED-1
Q1
PANEL POWER
FB1 FEB/1206
AO3401
40mil
2 3
C3 C4 C5
22uF/16V 100nF 0.01uF
Q2
KST3904
DGND
DGND
R123
220
MUTE
R116 220
UP
R117 220
DOWN
R118 220
EXIT
220
R119
MENU
R120 220
POWER
220 LED-2
R121
R122 220 LED-1
C128 C127
100nF 100nF
ViewSonic Corporation
Model
Title
Date
PANEL_VCC
Rev: