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GREEN
ORANGE
KEY PAD
6.7. PANEL CONNECTOR
LCD_VS
LCD_HS
LCD_DE
LCD_CLK
GB5
GB3
RB1
RB7
RB2
RB5
RB4
RB3
GA3
GA7
GA4
GA6
GA5
GA2
GA1
GA0
RB0
RB6
GB0
GB1
GB2
GB4
GB6
GB7
BA5
BA2
BA7
BA0
BA1
BA6
BA4
BA3
RA5
RA0
RA2
RA6
RA1
RA7
RA3
RA4
BB3
BB1
BB5
BB6
BB2
BB4
BB0
BB7
RA0
RA1
RA2
RA3
RA4
RA5
RA6
RA7
GA0
GA1
GA3
GA2
GA4
GA5
GA7
GA6
BA0
BA2
BA1
BA5
BA7
BA4
BA3
BA6
LCD_VS
LCD_CLK
LCD_DE
LCD_HS
RB0
RB7
RB5
RB6
RB2
RB3
RB1
RB4
BB1
BB0
GB1
GB5
BB2
BB4
BB3
GB6
GB4
GB2
GB0
GB7
GB3
BB6
BB5
BB7
LCD_VCC
LCD_VCC
IW1
IW2
IW3
IW3
IW2
IW1
DOWN
2
PSM/LED
PWR/LED
UP
1
PWR/SW
BA[0..7]
4,7
GA[0..7]
4,7
RA[0..7]
4,7
BB[0..7]
4,7
GB[0..7]
4,7
RB[0..7]
4,7
LCD_CLK
4,7
LCD_DE
4,7
LCD_VS
4,7
LCD_HS
4,7
BL_ONOFF
5
BL_BRI
5
LCD_VCC
3V3_A
12V
C272 22P
P113
NC
1
2
3
4
5
6
1
2
3
4
5
6
C359
NC
C358
NC
C360
NC
C273 22P
C276 22P
S701
S703
S704
S705
C270 22P
C271 22P
D701
S702
P701
8 HEADER
1
2
3
4
5
6
7
8
C279
0.1u
R193
1k
Q107
MMBT3904L
1
2
3
C288
0.1u
C278
330uF/25v
P109
CON6
1
2
3
4
5
6
1
2
3
4
5
6
R194 1K
L132
200R
L133
200R
C274 22P
C275 22P
C277 22P
C280 22P
C281 22P
C282 22P
C283 22P
C284 22P
C285 22P
C286 22P
C287 22P
L131
FERRITE
C289 22P
C290 22P
C291 22P
C292 22P
C293 22P
C294 22P
C295 22P
C296 22P
C297 22P
C300 22P
C301 22P
C298 22P
C299 22P
C302 22P
C303 22P
C304 22P
C305 22P
C306 22P
C307 22P
C308 22P
C309 22P
C310 22P
C311 22P
C312 22P
C313 22P
C314 22P
P110
NC
44
43
42
41
40
39
38
37
36
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
45
35
ODCK
GND
DE
GND
VSYNC
GND
HSYNC
GND
NC
BO-7
BO-6
BO-5
BO-4
GND
BO-3
BO-2
BO-1
BO-0
GND
GO-7
GO-6
GO-5
GO-4
GND
GO-3
GO-2
GO-1
GO-0
GND
RO-7
RO-6
RO-5
RO-4
GND
RO-3
RO-2
RO-1
RO-0
PVDD
PVDD
TEST
TEST
TEST
GND
GND
C315 22P
P111
NC
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
BE-7
BE-6
BE-5
BE-4
GND
BE-3
BE-2
BE-1
BE-0
GND
GE-7
GE-6
GE-5
GE-4
GND
GE-3
GE-2
GE-1
GE-0
GND
RE-7
RE-6
RE-5
RE-4
GND
RE-3
RE-2
RE-1
RE-0
C316 22P
C317 22P
C318 22P
C319 22P
C320 22P
C321 22P
C322 22P
C323 22P
C324 22P
ViewSonic Corporation
14
Confidential
–
Do
Not
Copy
VA720-1
VE175/b
Summary of Contents for va720-1
Page 1: ......
Page 23: ...9 2 MAIN PCB BOTTOM VIEW ViewSonic Corporation 19 Confidential Do Not Copy VA720 1 VE175 b...
Page 24: ...9 3 CON PCB TOP VIEW ViewSonic Corporation 20 Confidential Do Not Copy VA720 1 VE175 b...
Page 25: ...9 4 CON PCB BOTTOM VIEW ViewSonic Corporation 21 Confidential Do Not Copy VA720 1 VE175 b...
Page 26: ...9 5 POWER PCB TOP VIEW ViewSonic Corporation 22 Confidential Do Not Copy VA720 1 VE175 b...
Page 27: ...9 6 POWER PCB BOTTOM VIEW ViewSonic Corporation 23 Confidential Do Not Copy VA720 1 VE175 b...