![background image](http://html.mh-extra.com/html/viewsonic/vlcds27955-1w/vlcds27955-1w_service-manual_1021334030.webp)
are 85 C type.
All C's not otherwise specified are
50V type.
All resistorwich are not otherwise
specified are 1/6W.
Note: All capacitors without specified value
SDA
TxD
RxD
LED_G
LED_O
SW2
RxD
POWER
SW2
SDA
POWER
TxD
RESET
GREEN
SW3
SCL
SCL
RESET
SW4
ORANGE
GREEN
SW3
ORANGE
SCL
SDA
BRI-ADJ
2,5
AUDIO-UPDOWN 2,6
DDC5V-OFF
AUDIO_MUTE 2,6
SCL-VGA
1
VGA_HSYNC 1
DDC5V-OFF
VGA-CON
1
AUDIO-CON
6
AUDIO_EN 6
DVI-CON
7
VDDCRTL2 3
SDA-VGA 1
INV_EN
2,5
IRQ-
2
VGA_VSYNC1
M-RESET 2
VDDCRTL 2,3
SDA 2
SCL
2
MCU33
MCU33
DDC5V
VCC
MCU33
MCU33
VCC
VDD
MCU33
MCU33
VCC
MCU33
JP6
KeyPad
1
2
3
4
5
6
R69
10K
R66
100K
R61
100
C37
0.1uF
U7
MCU
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
34
35
36
37
38
39
40
41
42
43
44
33
8
9
DA2/P5.2
DA1/P5.1
DA0/P5.0
VDD3
NC
NC
RST
VSS
X2
X1
ISDA/P3.4/T0
ISCL/P3.5/T1
STOUT/P4.2
P6.2/AD2/HLFHI
P1.0
P1.1
P3.2/INT0
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P6.1/AD1
P6.0/AD0
HSDA/P3.1/Txd
HSCL/P3.0/Rxd
P6.4/DA10
P6.5/DA11
P6.6/DA12
DA6/P5.6
DA7/HCLAMP
VBLANK/P4.0
HBLANK/P4.1
DA9/HALFV
DA8/HLFHO
DA5/P5.5
DA4/P5.4
DA3/P5.3
HSYNC
VSYNC
P6.7/DA13
VDD
P6.3/AD3
Q7
2N3906
3
1
2
R75
100
Q3
2N3906
3
1
2
R86
4.7k
R88
4.7k
Q6
2N3906
3
1
2
R90
330
R89
330
R62
1M
JP4
DEBUG/NC
1
2
3
4
5
6
1
2
3
4
5
6
C65
22pF
C66
22pF
X1
12MHZ
D13
1N4148
1
2
D12
1N4148
1
2
C59
100uF/16V
Q4
2N3906
3
1
2
MODEL
UPDATE
P/R
REV. Nr
DWG No.
PWB No.
M/P-
VG510s / VG510b
PWB-5559
Sheet 3/8
Sep 25-2003
00
MCU
R67
5.1K
R63
100
R55
100
R56
100
R52
2k
D14
1N4148
1
2
Q5
2N3904
1
3
2
R58
4.7K
R57
4.7K
R65 4.7k
R68 6.8K
C67 0.1uF
D15
1N4148
1
2
R85
100
C69
0.1uF
R87
100
C68
0.1uF
C70
1uF/0603
R91
100
R41
4.7k
R40
4.7k/NC
R43
4.7k
R45 100/NC
R42
4.7k
R49 1K
R47 100
R48 1K
R46 100
C74
0.1uF
C75
0.1uF
R54 100
R51 100
C76
0.1uF
C63
0.1uF
R74
100
R71
100
R76
100
C64
0.1uF
R79
100
C60
0.1uF
C77
0.1uF
C61
10nF
C78
0.1uF
FB18
0603
1
2
FB17
0603
1
2
RP1
4.7K*4
1
8
2
7
3
6
4
5
R50
10K
FB15
0603
1
2
U5
24LC16B
1
2
3
4
5
6
7
8
A0
A1
A2
VSS
SDA
SCL
WP
VCC
FB16
0603
1
2
FB19
0603
1
2
C62
0.1uF
R82
100
R73
4.7k
R58
4.7k
R72
4.7k
C119
33pF
R39
4.7k/NC
R84
4.7k
R83
4.7k
R53
4.7k
R56
1K
C119
33pF
R64
10
Q8
2N3906
3
1
2
27
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VG510b/s
Содержание VLCDS27955-1W
Страница 8: ...5 ViewSonic Corporation Confidential Do Not Copy VG510b s 3 Front Panel Function Control Description ...
Страница 26: ...23 ViewSonic Corporation Confidential Do Not Copy VG510b s ...
Страница 36: ...11 PCB Layout Diagrams Main Board 33 ViewSonic Corporation Confidential Do Not Copy VG510b s ...
Страница 37: ...Control Board 34 ViewSonic Corporation Confidential Do Not Copy VG510b s ...