![background image](http://html1.mh-extra.com/html/viewsonic/va703b-4/va703b-4_service-manual_1020947081.webp)
40mil
40mil
PANEL POWER
5DVCC
BKLT-EN
LED-2
LED-1
BKLT-EN
J1
LED-2
LED-1
5DVCC
BKLT-VBRI
BKLT-VBRI
DGND
DGND
DGND
DGND
5V
5DVCC
LED2
LED1
DGND
3.3V
PANEL_VCC
5V
5V
ONPANEL_5V
DGND
VBRI
INVON
POWER
MENU
EXIT
DOWN
UP
MUTE
3.3DVCC
3.3V
MCU_VCC
5DVCC
R2 NC/0
R17
1K
R8
2K
R5 100k
R16
10K/NC
Q4
2N3906
1
2
3
R4
10K
Q5
2N3906
1
2
3
R14
220
R120
220
C10
1uF
Q1
AO3401
1
3
2
+
C70
47uF_16V/NC
L1 FEB/1206
Q6
KST3904
1
2
3
FB1
FEB/1206
+
C7
100uF_16V
+
C1
100uF_16V
JP1
HEADER 13/SM
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
R121
220
+
C6
100uF_16V
R123
220
R117
220
C11
100nF
R118
220
C8
100nF
R10
330
R127
1K
R126
1K
CN1
2.0_11pin
1
2
3
4
5
6
R2 NC/0
C127
100nF
R116
220
R6
1K
C9
NC
R13
1K
R11
330
C5
0.01uF
R119
220
C130
100nF
R122
220
R9 NC
C131
100nF
L2 FEB/1206
C3
22uF/16V
U3
1117-33/AIC1084-33
3
2
1
VIN
VOUT
GN
D
R15 NC
R12
4.7K
R7
4.7K
Q3
KST3904
1
2
3
C129
100nF
R3 0/NC
C132
100nF
C128
100nF
C2
100nF
C4
100nF
Q2
KST3904
1
2
3
Model
Title
Date
Rev:
ViewSonic Corporation
ViewSonic Corporation
77
10. Schematic Diagrams
Confidential - Do Not Copy
VA703b-4_VA703m-4
Summary of Contents for VA703b-4
Page 29: ...ViewSonic Corporation 26 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 30: ...ViewSonic Corporation 27 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 35: ...ViewSonic Corporation 32 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 36: ...ViewSonic Corporation 33 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 41: ...STEP5 DCC WRITTEN methods ViewSonic Corporation 38 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 87: ...ViewSonic Corporation 83 11 PCB Layout Diagrams Confidential Do Not Copy VA703b 4_VA703m 4...
Page 88: ...ViewSonic Corporation 84 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 89: ...ViewSonic Corporation 85 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 90: ...ViewSonic Corporation 86 Confidential Do Not Copy VA703b 4_VA703m 4...
Page 91: ...ViewSonic Corporation 87 Confidential Do Not Copy VA703b 4_VA703m 4...