ViewSonic VX500 Service Manual - Page 44

<7, <s, VX500, VLCDS22825, ViewSonic, Corporation, VX500-1

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P3( X) 1 DDCK(ID3) 2 GND 3 VSYNC 4 HSYNC GND 6 DDDA(ID1) 7 GND VDDCK VSYNC HSYNC VDDDA V9GAS BGNU 4 BLUE 11 GGND 124f GREEN 13 RGND -re RED VBLUE VGREEiN VRED CONN14 single point ground \V; VGA5V 9 2 10 3 11 4 12 5 13 6 14 7 15 8 P6 CONNECTOR DB15 VRED "GREEN /BLUE VDDDA HSYNC VSYNC VDDCK D A C VSYNC ZENER 5.6V(0603) D A C HSYNC ZENER 5.6V(0603) A C VBLUE ZENER 5.6V(0603) A C VGREEN ZENER 5.6V(0603) A C VRED ZENER 5.6V(0603) D. A C VDDCK ZENER 5.6V(0603) D7 A C VDDDA ZENER 5.6V(0603) HSYNC C170 FE34 1 2 10pF R29 4K7 VSYNC C171 FB5 2 10pF R28 4K7 SLUV2.8 SOT -23 R25 11 100R C84 47pF R.6 100R 86 47pF SN74LVC14APWR U9E 10 SN74LVC14APWR U9D 8 3 PAVSYNC PAVSYNC U9C 6 3 RHSYNC GND 7 GND PAVSYNG 4 PVDD RX24(X) 22R 8 `i1SYNCO U23C 10K 74LVC125 RX25(X) GND >>VSYNC VGA 3

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P3(
X)
DDCK(ID3)
1
2
GND
3
VSYNC
VSYNC
4
HSYNC
HSYNC
GND
6
VDDDA
DDDA(ID1)
7
VGAS
G
N
D
9
BGNU
4
VBL
UE
BLUE
11
GGND
4f
12
VGREEiN
GREEN
13
RED
—
re
VRED
RGND
CONN14
single
point
ground
\V;
VDDCK
VGA5V
9
2
10
3
11
4
12
5
13
6
14
7
15
8
VRED
"GREEN
/BLUE
VDDDA
HSYNC
VSYNC
VDDCK
P6
CONNECTOR
DB15
D
A
C
VSYNC
ZENER
5.6V(0603)
D
A
C
HSYNC
ZENER
5.6V(0603)
A
C
VBLUE
ZENER
5.6V(0603)
A
C
VGREEN
ZENER
5.6V(0603)
A
C
VRED
ZENER
5.6V(0603)
D.
A
C
VDDCK
ZENER
5.6V(0603)
D7
A
C
VDDDA
ZENER
5.6V(0603)
SLUV2.8
SOT
-23
FE34
HSYNC
1
2
R25
11
C170
100R
10pF
R29
C84
4K7
47pF
C171
10pF
FB5
VSYNC
2
R.6
R28
4K7
100R
3
PAVSYNC
PAVSYNC
6
86
47pF
SN74LVC14APWR
U9E
10
FB17
2
2'
3
_J
LI
L
0M1117224
3.3
SOT223
5V
5V-1
LM1117MPX-3.3
0
F83
0
U7
IN
z
OU
0
TAB
C42
100F/16V
i•~
5V-2
U8
3.3V
FB2
C33
100F/16V.-r.
PVDD
T
C166
Q
C43
47uF/25V
10uF/16V
3.3AN
C60
100nF
SN74LVC14APWR
14
U9F
13
12
C38
LM1117MPX-3.3
10uF/16V
IN
0
TAB
C39
100nF
SN74LVC14APWR
U9D
8
U9C
SN74LVC14APWR
SN74LVC14APWR
3
RHSYNC
<.<
2
FB9
VDDCK
1
USA
MOODS
1
2
C3
,ro
y
...
R36
FB10
10K
R39
C7iL
100nT
GND
47pF
FB6
75R1%
C62
VB'
41
-
4:1
iF
1
2
R30
10
C172
C;
;
;•
C6T
4.7pF
FB7
75R
1%
VGRE
FN
IC:3
2
R31
a
10pF
C173
.7pF
C67T47nF
\
N"i
•-•
FB8
75R1%
4
C68
R3
II
10pF
C174
O
TA
i
C44
100nF
2
100nF
100nF
3.3V-1
C
5
C
7
77771
C34
C36
GND
PVDD
I
I
47uF/25V
100nF
R20(X)
3R3
C40
1
C47
100nF
4,7nF
100nF
R23
12K
„
22OR
R27
C61
15pF
3.3AN
R
22nF
C45
100nF
C46
F
-
10K
R24
77.
PVDD
GND
AGCVS
PVDD
4
CXI
100nF
GND
7
GND
PAVSYNG
PVDD
4
PAVSYNC
OR
4
4
4
44
4
47nFC64
I
4
C65
10pF
II
j
q-22<'';
o
n
i
A
c
o
n
<T
,
OR
RX
RX23
22R
6
U23B
74LVC125
RX22(X)OK
f -W
-
1>GND
RX24(X)
22R
8
`i1SYNCO
U23C
10K
74LVC125
RX25(X)
GND
22A,2`<:,'
<7,
AD9883
U10
C66
10pF
4
1nF
4
0C2
X)
10K
IF
4
5
5
52
53
54
55
56
57
58
C69
10pF
MC_SCLK
R37
MC_DATA
R38
VGA5V
5V
0
0
4.7pF
150R
R33
M
~
10K
150R
D2
D3
MMBDX
MMBD4148
U
2
U17
U
ST24FW21(SMT)
WC
=
SDA
NC1
SCL
DDC
NC2
VCLK
0
6
7
KI
cl
Cg5
C83
47pF
GND
47pF
ED
I
D
DATA
R300
15OR
0900
C711
59
100nFl
-
6
C
4C
5C
6
C78
C
9C
001C
2
100nF
100nF
100nF
100nF
100sF
100nF
100nF
100nF
5V
U25
U23A
GND
2
PVDD
4
4LVC125
GND
R302
4K7
R303
<s,
%MCA
11
R3'
150R
2
OMC_SCLK>>OMC
SCLK
4
2
OMC_DATA>>0MC
DATA
8
4
U9B
SN74LVC14APWR
0
11
0
0
4_
1K
3
o0
0
-?o006-000,0000000,9
z>2•-ilz>>-='ZZz
<
z»zzoo-
00>>0
GND
-5
>
GND
VD
BLUED
GND
D
Ei
t_
L
u
U
2
VD
BLU:3
GAIN
B
EI
N
U
E
:
5
4
BLUES
VD
GND
VN
I
G
RG
ADD
N
NI
U
LQFP80
VDU
DN
AD
9
8 8
3
GRE
ENO
GREEN2
GREEN1
BLUE?
GND
SOGIN
AO
SCA
GREEN3
REF
BYP
GREEN4
SOS
/
GREENS
GND
5
L.
8
1
5,
GREEN7
(
,i
,,,,
,
,I.
,,
,N
,
-O
0
0
000i--
0
000606000
GND
o0O
ZCZCOOW<CZOWWWWLJUJUILJOCD
7
-
CD>CD>COMOCD>CM
C
L/>>0
BAIN
20
19
16
17
15
14
13
1
>>VSYNC
VGA
3
<40808
1
11
CZ8
C
9
Cl0
C11
Ck2
Ck
Ck
C55
C
6
C57
Ck
C59
100nF
100nF
100nF
100nF
100nF
100nF
74LVC125
U23D
14
0
PVDD
PVDD
O
12
w—
GND
F
ir
(X)
1nF
1nF
1nF
1nF
1nF
1nF
RAO-00120-1123
OB[7..0j
RP1
1
8
080
"svis".
./iv
5
DE'
3
DB
i
DB
/
/
/
11
10
1
8
084
MN
5
687
/
RP2
RAO-00120-1123
RAG
-00120-1123
RP3
MH
4
ion
COAST
0
HSYNC,
R
>>
ADCVS
w
RX63(X)
°2
GND
8
DG0
7
001
RAO-00120-1123
RP5
8
DRO
DRS
/
-NA",
DR2
DR3
2
3
"\/\/\,-
003
8
004
7
005
5
D06
D0
\\\ \\\\
RP4
RAO-00120-1123
22R
R42
8
DR4
7
DR5
/
RP6
RAO-00120-1123
0R6
/
DR7
/
2R
R43
C
75
10pF
C176
10pF
14
0,
10
02
1 ..
6
R304,
\A
",..
12
<KMC_SCLK
2
2
US„
..
".
CX
13
-f
i
>
m
0
t3I
0
,
ii
ci1C_DATA
2
OR
74H040660
GND
GND
GND
Q7
-
s
E
pTC144EKA
Ci81
10pF
C182
10pF
<<810000
3
>>PACLK
3
>>PAHSYNC
3
ViewSonic
Corporation.
Title
VGA
VX500
(VLCDS22825-
XY)
Date:
Monday,
June
18,
2001
I
5Sheet
of
8
ViewSonic
Corporation
Confidential
-
Do
Not
Copy
41
VX500-1