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Schematic Diagram
Main Board
2K2 1/16W 5%
R438
HS
G1
VGA_VDD
1K 1/16W 5%R425
VSI 4
220pF
C423
GI1 4
22pF
C425
B1
D402
BAV99
3
1
2
75R 1/16W 5%
R427
4K7 1/16W 5%
R435
R1
VS
D-SUB1
B1
HS
1K 1/16W 5%
R430
SOGI 4
GI1- 4
R431
470R 1/16W 5%
100R 1/16W 5%
R424
0.047uF
C421
FB405
30 OHM
1 2
VS
R434
100R 1/16W 5%
0.047uF
C418
ZD403
UDZSNP5.6B
1 2
FB404
30 OHM
1 2
move C423 C425 to
R438 R443
R1
BI1- 4
R429
100R 1/16W 5%
ZD405
UDZSNP5.6B
1 2
0.047uF
C424
HSI 4
Add Zener
for ESD
+5V
move FB403 FB404 FB405
to CN403
R432
100R 1/16W 5%
75R 1/16W 5%
R440
100R 1/16W 5%
R437
1N 50V
C420
ZD401
UDZSNP5.6B
1 2
VGA_5V
VGA_DET 4
ZD402
UDZSNP5.6B
1 2
BI1 4
2K2 1/16W 5%
R443
ZD404
UDZSNP5.6B
1 2
R439
100R 1/16W 5%
D404
BAV99
3
1
2
VGA_SDA4
D403
BAV99
3
1
2
RI1- 4
0.047uF
C419
RI1 4
FB406
0 OHM +-5% 1/10W
ZD407
UDZSNP5.6B
1 2
0.047uF
C417
R426
100R 1/16W 5%
VGA_VDD
R441
100R 1/16W 5%
R436
100R 1/16W 5%
VGA_SCL4
CN403
DB15
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
17 16
FB403
30 OHM
1 2
R442
100R 1/16W 5%
G1
75R 1/16W 5%
R433
4K7 1/16W 5%
R428
0.047uF
C422
ZD406
UDZSNP5.6B
1 2
Chapter 7