Service Manual ViewSonic VG900b-1

Service Manual
ViewSonic VG900b-1
Model No. VLCDS24020-2W
19” Color TFT LCD Display
(VG900b-1_SM_575-Rev. 1.0-October 2002)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
“
Copyright
Copyright ¤ 2002 by ViewSonic Corporation. All rights reserved. No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical,
manual or otherwise, without the prior written permission of ViewSonic Corporation.
Disclaimer
ViewSonic makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular
purpose. Further, ViewSonic reserves the right to revise this publication and to make changes from time
to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or
changes.
Trademarks
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
Revision History
Revision
1a
1b
Date
10/2/02
11/11/02
ViewSonic Corporation
Description Of Changes
Initial Reversion DCN-2351
Revise DCN-2351
i
Confidential – Do Not Copy
Approval
K.Yang
C.Shen
VG900b-1
TABLE OF CONTENTS
1. PRECAUTIONS AND NOTICES...............................................................................1
2. SPECIFICATIONS ....................................................................................................2
3. LOCATION OF CONTROLS.....................................................................................3
4. ADJUSTING PROCEDURE......................................................................................4
5. BLOCK DIAGRAM....................................................................................................9
6. TROUBLE SHOOTING FLOW CHART...................................................................11
7. SPARE PARTS LIST...............................................................................................15
8. EXPLODED DIAGRAM AND SPARE PARTS LIST................................................23
9. SCHEMATIC DIAGRAMS........................................................................................25
10. PCB LAYOUT DIAGRAM........................................................................................35
ViewSonic Corporation
ii
Confidential – Do Not Copy
VG900b-1
1. PRECAUTIONS AND NOTICES
Prior to using this manual, please ensure that you have carefully followed all the procedures outlined in
the user manual for this product.
Read all of these instructions.
Save these instructions for later use.
Follow all warnings and instructions marked on the product.
Do not use this product near water.
This display should be installed on a solid horizontal base.
When cleaning, use only a neutral detergent cleaner with a soft damp cloth. Do not spray with liquid or
aerosol cleaners.
Do not expose this display to direct sunlight or heat. Hot air may cause damage to the cabinet and other
parts.
Adequate ventilation must be maintained to ensure reliable and continued operation and to protect the
display from overheating. Do not block ventilation slots and openings with objects or install the display
in a place where ventilation may be hindered.
Do not install this display near a motor or transformer where strong magnetism is generated. Images
on the display will become distorted and the color irregular.
Do not allow metal pieces or objects of any kind fall into the display from ventilation holes.
Slots and openings in the cabinet and the back or bottom are provided for ventilation, to ensure reliable
operation of the product and to protect it from overheating, those openings must not be blocked or
covered. Those openings should never be blocked by placing this product on a bed, sofa, rug, or other
similar surface. This product should never be placed near or over a radiator or heat register. This
product should not be placed in a built-in installation unless proper ventilation is provided.
ViewSonic Corporation
1
Confidential – Do Not Copy
VG900b-1
2. SPECIFICATIONS
1. Specifications
LCD panel type
19.0” TFT(Fujitsu)
Power Consumption
48 W (typ)
Displayable Resolution
SXGA 1280 x 1024 maximum
Pixel dimension
0.294 mm x 0.294 mm
Display Color
16.7 M
Viewing Angle
(CR=10)
Horizontal: ±85q
Vertical:
±85q
Response Time
25 ms typ.
Contrast Ratio
500:1 typ.
Brightness
250 cd / m2 typ.
Active Display Area
376 mm horizontal x 301mm vertical
AC/DC adapter
Input:AC 100~264V,47~63 Hz
Output:+12V DC.
Dimensions ( WxHxD )
439 mm(W) x 465mm(H) x 180mm(D)
Weight
7.5 kg (unit)
Input connector
15 Pin D-Sub.
Power management
YES
Temperature
Operating : 0°C ~ +40°C
Storage : -20°C ~ +60°C
ViewSonic Corporation
2
Confidential – Do Not Copy
VG900b-1
3. LOCATION OF CONTROLS
3. LOCATION OF CONTROLS
ViewSonic Corporation
3
Confidential – Do Not Copy
VG900b-1
4. ADJUSTING PROCEDURE
The " adjusting procedure" of VG900b model
1. Turn off the display by power button key on the front of bezel,
2. Disconnect the DC power cable from power jack at rear side.
3. Press and hold the “Ÿ” button key on the front of the bezel
4. Connect the power cable with power jack, and keep pressing the “Ÿ” button key.
5. Press the power button key to turn the display on, and then release the “Ÿ” and power button.
6. The unit is set into Reset mode, OSD main window will be shown on the display,
you can see a red message for “ALL RESET” with a red frame inside OSD windows.
7. The LED lights up with orange and change to green color during reset procedure.
8. OSD changes into a message for "Auto Image Adjust", it disappears after reset procedure.
9. The input video signal is shown on display.
ViewSonic Corporation
4
Confidential – Do Not Copy
VG900b-1
5. BLOCK DIAGRAM
INTERFACE BOARD(DPWBN5419T8---A)
COMPUTER
GRAPHIC
W1
(DB15)
SCALER
SD1210-2
(U8)
A/D
CONVERTER
AD9883
(U3)
DDC
EPROM
24C21A
(U5)
Serial
EEPROM
24C16
(U17)
X1
OSC
PLL
U12
Serial
EEPROM
24C16
(U9)
MPU
(U15)
MTV230P
SWITCH MODE
POWER SUPPLY
JP3
JP2
TO
INVERTER
12V
3.3V
5V
FROM
A/D ADAPTOR
JP7
SW BOARD
DPWBN5418T8----
CON4
5CON
CON2
CON3
CON1
INVERTER
RUNTP5392T8----
19” LCD
PANEL
AUDIO BOARD
DPWBN5417T8----
ViewSonic Corporation
5
Confidential – Do Not Copy
VG900b-1
6. TROUBLE SHOOTING FLOW CHART
Does
picture
display
YES
NO
Back-light
On or off?
ON
A dark picture
or a picture
full of
colored
vertical lines
OFF
Check
power
LED
GREEN
Hsync,Vsync
Or DE error
ORANGE
Check display
resolution
Check inverter
Check I/F board JP1
Check LCD cable
Check I/F board JP4
Check LCD panel
J1,J2,J3
Check I/F board
OSD no response
Picture too dim
The brightness is
different between upper
and lower side of panel
Picture without
Color
Vertical, Horizontal
Out of sync
One or more colored
vertical lines
Even (or odd) vertical
line is dark
ViewSonic Corporation
Check SW board S1~S4
Check I/F board
Check OSD adjustment
Check inverter
Check backlight
RGB signal
error
Check SW board
J1
Check inverter
Check I/F board
Check signal cable
Check I/F board
Check LCD panel
Check LCD panel
H,V sync
error
6
Confidential – Do Not Copy
VG900b-1
POWER CKT
START
YES
YES
END
CHECK 5V,3.3VB,
LCD_VCC & 3V3_MCU
NO
CHECK POWER CKT
YES
(12V,+5V & 3.3V CKT)
POWER CKT
ViewSonic Corporation
7
Confidential – Do Not Copy
VG900b-1
ADC CKT
START
YES
OK
YES
Check U3 O/P
REPLACE U3
TO SD1210 CKT
& VCLK00 SIGNAL
NO
YES
CHECK I/P R,G & B Video,
HSYNC(pin 30),Coast(pin 31) AND
I2C BUS Signal
NO
CHECK MCU CKT(I2C
BUS),D_SUB connector
And U2(74LV14)
ADC CKT
ViewSonic Corporation
8
Confidential – Do Not Copy
VG900b-1
MCU CKT START
YES
CHECK MCU_I2C(pin
31;32),ROM I2C(pin
27;28),ASIC I2C(pin
25;26) AND OUTPUT
SIGNAL
YES
END
NO
YES
CHECK U15 RESET(pin
19),12MHZ(Pin7,8),H_sync
(pin 14)&V_sync(pin13)
SIGNAL
NO
OK
CHECK U15 F/W
OR REPLACE
MCU CKT
ViewSonic Corporation
9
Confidential – Do Not Copy
VG900b-1
SD1210 CKT
START
YES
YES
CHECK U14 RE0-RE7,RO0-RO7
,GE0-GE7,GO0-GO7,BE0-BE7,BO0-BO7,
And LCD_CLOCK(Pin 33),LCD_DE(Pin 34),
,LCD_HS(Pin 31),LCD_VS(Pin
32) SIGNAL
END
OK
CONTROL SIGNAL:
U8
U8
U8
U8
U8
U8
U8
U8
U8
U8
U8
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
157 ASIC_H
158 ASIC_V
10 ROM_SCL
11 ROM_SDA
13 ASIC_SCL
14 ASIC_SDA
16 12MHZ
19 RESET
28 VCLK00
29 FCLK1
30 VCLK1
NO
CHECK U8 INPUT
DATA RIN0-RIN7,
GIN0-GIN7, BIN0-BIN7 AND
YES
CONTROL SIGNAL
REPLACE U8
NO
CHECK MCU,ADC & H&V
BUFFER CKT AND
U11
SD1210 CKT
ViewSonic Corporation
10
Confidential – Do Not Copy
VG900b-1
OSD CKT
START
OK
YES
OK
CHECK U15
FBLK(Pin42),OSD_B(Pin 43)
,OSD_G(Pin44) And OSD_R
(Pin 1) SIGNAL
YES
NO
REPLACE U15
YES
CHECK U8
FBLK(Pin23),OSD_B(Pin 22)
,OSD_G(Pin21) And
OSD_R(Pin 20)
YES
END
NO
CHECK U11
OSD_CLK(Pin6),U8 OSD_HS
(Pin31),OSD_VS(Pin 32)
SIGNAL
REPLACE U8
OSD CKT
ViewSonic Corporation
11
Confidential – Do Not Copy
VG900b-1
PLL1 CKT
START
YES
YES
CHECK U11 PIN 6 CLOCK
AND PIN 8 HALF_CLOCK
SIGNAL
END
NO
YES
OK
CHECK U11 FCLK1(Pin 1)
and 2 PLL1_H(Pin 2)
SIGNAL
YES
REPLACE
U11
NO
CHECK U8 FCLK1(Pin
29),VCLK1(Pin 30)
SIGNAL
PLL1 CKT
ViewSonic Corporation
12
Confidential – Do Not Copy
VG900b-1
PANEL POWER
STAR
YES
CHECK
LCD_VCC,V+3.3V,
+5.0V,+12V AND
AUDIO +9.0V
YES
END
NO
CHECK
POWER CKT(+3.3V,
+5V,+12V AND
AUDIO +9.0V
YES
PANEL POWER CKT
ViewSonic Corporation
13
Confidential – Do Not Copy
VG900b-1
AUDIO CKT
ViewSonic Corporation
14
Confidential – Do Not Copy
VG900b-1
7. SPARE PARTS LIST
Name: DPWBN5417T8---Item Product
ViewSonic P/N
No.
No.
1
102001
2
102002
3
102002A
4
102002B
5
102701
6
102702
7
202001
8
202002
9
202003
10
232002 E-D-0403-1832
11 232002A E-D-0403-1831
12
232003 E-L-0407-1264
13
232004 E-L-0407-1265
14
232007
15
232008
16
232009 E-R-0405-1250
17
232010
18
232011
19
232012
20
232013 E-R-0405-1290
21
232015 E-C-0404-3994
22
232016
23
232019 E-C-0404-3973
24
232020 E-C-0404-0944
25
232021 E-C-0404-2263
26
232023 E-C-0404-0943
27
232024
28
232025 E-C-0404-1199
29
232030 M-WR-0828-0471
30
232031 M-WR-0828-0472
31
232032 M-WR-0828-0473
32
232033 M-WR-0828-0475
33
262001
34
262002
35
262003
36
262004
37
262005
38
262006 E-L-0407-1559
39
262007
Name: DPWBN5418T8---Item Product
ViewSonic P/N
No.
No.
1
207001
2
207002
3
207003
4
237001 M-WR-0828-0472
5
267001
6
267002
7
267003
8
267004
9
267005
10
267006
11
267007 E-L-0407-1559
Name: DPWBN5419T8---A
Item Product
ViewSonic P/N
No.
No.
1
100001 E-C-0404-3972
2
100001A
3
200001
4
200003
5
200004
6
200005
7
200006 E-IC-0401-2584
ViewSonic Corporation
Part No.
Location
VSILA4635A----VSIPJ7809CZ---VSIPL7809B----VSIL7809CV----PRDA-1253D8---XEASD30P08000-QJAKS0005D8D--G
VCNCP0904SEJSTVCNCP0907SEJSTVSZMTZJ3.9B---U
VSZBX79C3V9B--U
RCORA1021D8--HU
RCORA1022D8--HU
VRMPTV6--242J-U
VRMPTV6--472J-U
VRMPTV6--103J-U
VRMPTV6--2R2J-U
VRMPTV6--330J-U
VRMPTV6--472J-U
VRMPTV6--102J-U
VCEACU1HH225M-P
VCEACU1HY104Z-P
VCEACU1CH107M-P
VCEACU1HH105M-P
VCEACU1EH226M-P
VCEACU1HH475M-P
VCEACU1CG477M-P
VCDSDU1HL100D-P
QJUM-1045D8050QJUM-1045D8075QJUM-1045D8100QJUM-1045D8150QPWB-5417T8---VSIPT2313L----A
VCLFHN1HG104Z-A
VCICHN1HG102K-A
VRMDNVG--103J-A
RFIL-5232T8300A
VCLFHN1EG224Z-A
U22
U24
U24 2nd SOURCE
U24 2nd SOURCE
HEAT SINK FOR U22
SCREW
AUDIO IN
JP3
JP6
ZD191,192,193,194
ZD191,192,193,194 2nd SOURCE
L47
L48
R113,114
R109
R191,192
R105,106
R111,112
R117,118
R115,116
C172,181
C158,165,169,171
C160,164,187
C177,178,179,180
C184
C163
C161,162,170
C189,190
J7,8,9,10
J1,J2,J3
J4,J5,L52
J6
AUDIO BOARD
U23
C173,174,185,186,188
C176,183
R110,119
L50,L51
C175,182
Part No.
Location
QSW-A1124T8---VSPSPR-39MVWF-VCNCP0908REJSTQJUM-1045D8075QPWB-5418T8--1VRMDNVG--203J-A
VRMDNVG--222J-A
VRMDNVG--752J-A
VRMDNVG--472J-A
VCICHN1HH101J-A
RFIL-5232T8300A
SW1,2,3,4,5,6,7,8
LED
JP7
J1,2,3,4,5,6
CONTROL BOARD
R125
R121,124
R122,126
R120,123
C193,194,195
L53,54,55,56,57
Part No.
Location
VCEACU1CH477M-P
VCEACU1CG477M-P
VCNCP0908REJSTVCNCP0906REJSTQJAKP1044T8---VCNCP0907REJSTVSI24C16-------
C136,142,144,146 (470UF/16V)
SECOND SOURCE
JP1 (OSD CON)
JP2 (INVERTER CON)
JP3 (POWER JACK)
JP4 (AUDIO CON)
U9
15
Confidential – Do Not Copy
QTY
(pcs)
1
1
1
1
1
2
1
1
1
4
4
1
1
2
1
2
2
2
2
2
2
4
3
4
1
1
3
2
4
3
3
1
1
1
5
2
2
2
2
QTY
(pcs)
8
1
1
6
1
1
2
2
2
3
5
QTY
(pcs)
4
4
1
1
1
1
1
VG900b-1
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
66
67
68
69
70
71
72
73
74
75
76
77
200006C
200006D
200006E
200007
200007A
200007B
200007C
200008
200008A
200008B
200008C
200009
200009A
200009B
200010
200010A
200013
200013A
200013B
200701
200702
220002
260001
260002
260003
260004
260004A
260004B
260004C
260006
260007
260008
260008A
260008B
260010
260011
260011A
260011B
260011C
260012
260012A
260013
260014
260014A
260015
260022
260022A
260025
260026
260027
260027A
260027B
260027C
260027D
260027E
260027F
260027G
260027H
260027I
260028
260029
260029A
260030
260030A
260030B
260032
260032A
260032B
260033
VSI24C16ADP01-VSI24C16BP3---VSI24WC16P----E-IC-0401-2584
VSI24C16------VSI24C16ADP01-VSI24C16BP03--VSI24WC16P----RCRSL1132T8---E-X-0415-0127
RCRSL1167T8---RCRSL1215T8---RCRSL1217T8---RFIL-5147T8111RCHOL1073T8101RCHOL1090T8111QCNCD1173T8---QCNCD1176T8---E-IC-0401-2137
VSI24C21------VSI24LCS21A---E-IC-0401-2287
VSI24LC21A-SN-A
PRDAA6380D8---PRDA-1252D8---E-IC-0401-2108
VSISM0230-----S
QPWB-5419T8---C
VSISD1210-----D
E-IC-0401-2106
VSIAD9883-140-D
E-IC-0401-2564
VSISN75LVDS83-A
VSIDS90C383A--A
VSI63LVDM83A--A
VSICS5828-----A
VSI74HC4053---A
VSILM2596S-5--VSIAIC1084-33-A
VSIAPL1084-33-A
VSIRT8171-33--A
VSIAIC1732----A
VSISI9433DY---A
VSIFDS4435----A
VSICEM4435----A
VSIAV9173-01--VSIMK9173-01--A
VSIMK9173-01--A
VSISN74LV14A--A
VSI74AHC1G14-TA
VSI74AHCT1G14TA
VSI74LCX125MXFA
M-MS-0808-8269 QCNCP1962T8---QCNCP1961T8---E-FS-0410-0099 QFS-Z402F-81UAA
E-D-0403-0531
VSD1N4148-----A
VSDSS22-------A
VSDSS24-------A
VSDSK22-------A
VSDSK24-------A
VSDSS34-------A
VSDLYSS32-----A
VSDSS34----GI-A
VSDSM340A-----A
VSDB340A------A
VSDLYSS24-----A
VSDAN202UT106-A
VSDBAV99------A
VSDBAV99A-----A
VSTIRLMS1503--A
VSTBSH107-----A
VSISI3442DV---A
M-MS-0808-8003 QSOCI1642T844-QSOCI1645T844-QSOCI1660T844-VSZRLZ5.6B----A
ViewSonic Corporation
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
U17
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
X1 (12MHz)
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
L30
SECOND SOURCE
SECOND SOURCE
W1 (DB15,PC99)
SECOND SOURCE
U5 (ANALOG DDC)
SECOND SOURCE
SECOND SOURCE
HEAT SINK FOR U8
HEAT SINK FOR U18
U15
I/F BOARD
U8
U3
U13,14 (LVDS)
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
U12
U18
U21
SECOND SOURCE
SECOND SOURCE
U1
U19,20
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
U11
SECOND SOURCE
U4
U10
SECOND SOURCE
U16
J1 (FI-SE30P-HF)
SECOND SOURCE (FI-S30P-HF)
F1 (4A/125V)
D6
D7 (SCHOTTKY DIODE)
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
SECOND SOURCE
D4
D1,2,3
SECOND SOURCE
Q6,7
SECOND SOURCE
SECOND SOURCE
U15 (PLCC44
SECOND SOURCE
SECOND SOURCE
ZD1,2,3,4,5,10
16
Confidential – Do Not Copy
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
1
1
1
1
1
1
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
3
2
2
2
1
1
1
6
VG900b-1
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
260034
260035
260035A
260035B
260045
260046
260047
260048
260049
260050
260051
260052
260053
260055
260057
260058
260060
260061
260062
260063
260064
260065
260066
260067
260068
260069
260070
260072
260073
260074
260075
260077
260079
260090
260092
260093
260094
260100
260101
260103
260104
260105
260106
260107
260110
260111
260111A
260112
260113
260115
260116
260117
260118
260119
260120
260121
260121A
260122
260124
260124A
260124B
260130
260130A
260131
260132
260132A
260133
260133A
E-L-0407-1559
E-L-0407-1559
E-L-0407-1558
E-R-0405-0331
E-C-0404-4885
ViewSonic Corporation
VST2N3906-----A
VST2N3904-----A
VSTMMBT3904T-MA
VSTMMBT3904LT-A
RFIL-5232T8300A
RFIL-5232T8300A
RFIL-5235T8600A
RFIL-5231T8600A
RFIL-5231T8600A
RFIL-8187T8500A
RFIL-5240T8110A
VRMDNVG--000J-A
VRMDNVG--000J-A
VRMDNVG--101J-A
VRMDNVG--102J-A
VRMDNVG--103J-A
VRMDNVG--104J-A
VRMDNVG--105J-A
VRMDNVG--151J-A
VRMDNVG--202J-A
VRMDNVG--202J-A
VRMDNVG--220J-A
VRMDNVG--221J-A
VRMDNVG--243J-A
VRMDNVG--330J-A
VRMDNVG--330J-A
VRMDNVG--332J-A
VRMDNVG--4R7J-A
VRMDNVG--470J-A
VRMDNVG--472J-A
VRMDNVG--472J-A
VRMDNVG--750J-A
VRMCNVA--330J-A
RNWRB1618T8101M
RNWRB1618T8330M
RNWRB1618T8330M
RNWRB1618T8472A
VCLFHN1HG104Z-A
VCLFHN1HG104Z-A
VCLFHN1HG104Z-A
VCLFHN1HG104Z-A
VCLFHN1HG104Z-A
VCLFHN1HG104Z-A
VCLFHN1HG104Z-A
VCLFHN1HG100J-A
VCICHN1HH101J-A
VCLFHN1HG101K-A
VCICHN1HG102K-A
VCIRHN1HG103K-A
VCLFCN1CG105Z-A
VCICHN1HH220J-A
VCICHN1HH330J-A
VCICHN1EG334Z-A
VCIRHN1HG392M-A
VCICHN1HG393M-A
VCICHN1HH470J-A
VCLFHN1HG470K-A
VCLFHN1HG473Z-A
VCICHN1HB150J-A
VCICHN1HH150K-A
VCLFHN1HG150J-A
VCEABN1CX106M-A
VCEABN1CX106MNA
VCEABN1CX226M-A
VCEABN1CX107M-A
VCEABN1CX107MNA
VCEABN1CX107M-A
VCEABN1CX107MNA
Q3,4
Q1,2,5,8,9,10,11,12
SECOND SOURCE
SECOND SOURCE
L8,9,10,11,12,(0603)
L24,(0603)
R44
L19,21,22,23,40,41,42,43,44,45,46,(0805)
L2,3,20
L25,26,27,28,29,33,35,36,37,38,47,(1206)
L4,5,6
L7,16,18,31,R85,86
R8,38,58,60,80,106,107
R21,22,24,62,63,66,74,152
R61,67,82,151
R9,10,19,20,23,83,94,95,96
R88,93,153
R72
R12,13,16,18
R14,15,28,69,70,97,98,99,100,101,102
R103,104
R17,50,52,54,55,56,84
R73
R89,90
R37,39,40,41,42,43,49,64
R65,75,76,78,79
R11
R53
R7
R45,46,77,91
R92,105,108,109,110,111
R1,2,3,4,5,6
R68,71,(0805)
RP1,2,3,4,5,6
RP19,20,21,22,23,24,25,26
RP27,28,29,30,31
RP33,34,35,36,37,38,39
C1,2,3,4,8,9,10,11,12,13
C14,20,21,27,29,38,42,43,48
C73,76,77,78,79,80,81,82,83
C84,85,86,87,88,89,92,96,98,101
C103,105,107,109,111,114,116,119,121,123
C132,133,135,137,138,139,145,150,152,157
C161,169
C44,162,163,164,165,166
C125,130
SECOND SOURCE
C49
C95,102,104,106,108,110,112,115,117,120,122
C124
C128,129
C37,45,62,63,71,131
C148,153,154,158
C41,72
C39
C40,47,74
SECOND SOURCE
C30,33,35
C31,34,36
SECOND SOURCE
SECOND SOURCE
C19 (10UF/16V)
SECOND SOURCE
C100,113,118 (22UF/16V)
C22,28,70,75,99,141,143,147,149,(100UF/16V)
SECOND SOURCE
C151,155,156 (100UF/16V)
SECOND SOURCE
17
Confidential – Do Not Copy
VG900b-1
2
8
8
8
5
1
1
11
3
11
3
6
7
8
4
9
3
1
4
11
2
7
1
2
8
5
1
1
1
4
6
6
2
6
8
5
7
10
9
9
10
10
10
2
6
2
2
1
11
1
2
6
4
2
1
3
3
3
3
3
3
1
1
3
9
9
3
3
Name: VG900b
Item Product
No.
No.
1
414701
2
414702
3
414703
4
414704
5
414705
6
414706
7
414707
8
414708
9
414709
10
414710
11
414711
12
414712
13
420001
14
420004
15
420701
16
420702
17
420703
18
420704
19
420705
20
420706
21
420707
22
420711
23
420712
24
420713
25
420714
26
420715
27
420716
28
420717
29
420718
30
420719
31
420720
32
420721
33
420722
34
420723
35
420724
36
420725
37
420726
38
420727
39
420728
40
420729
41
420730
42
420A02
43
420A03
44
420A04
45
421000
46
422001
47
424001
48
430002
49
430003
50
430004
51
430005
52
430007
53
430008
54
430009
55
430012
56
430013
57
430015
58
430701
59
430702
60
430703
61
430704
62
430705
63
430706
ViewSonic P/N
PL-PS-0715-0975
M-CV-0830-2352
M-CV-0830-2353
M-MS-0808-8259
M-MS-0808-8260
Part No.
GSTN-2875D8F--A
GSTN-2876D8F--A
GSTN-2877D8F--A
LANG-2051D8---LANG-2052D8---XBSSN40P08000-XBPSN30P08000-P-FM-0602-0776 PCUSG1581D8---A
P-FM-0602-0777 PCUSG1582D8---P-FM-0602-0778 PCUSG1583D8---P-FM-0602-0796 PCUSG1584D8---A
M-MS-0808-8265 MHNGM0031D8---TLABZ3978D8---E-SK-0412-0054 RSPKCL015D84FGC-FP-0301-0911 GCABA2104D8F--A
M-CV-0830-2350 GCABB1769D8F--A
PL-NB-0707-0180 JKNBP2311D8F--A
M-MS-0808-8257 HDECP1937D8F--M-CV-0830-2351 GMSKP1325D8F--A
C-BC-0302-0451 GCOVD2442D8F--A
M-MS-0808-8330 HBDG-1278D8F--A
M-MS-0808-8264 LANGN1714D8---M-MS-0808-8258 LANG-2050D8---M-MS-0808-8263 LANGH0029D8---M-MS-0808-8266 PGUM-1105D8---M-LB-0813-0711 HINDA1259D8---M-MS-0808-6478 HBDGA1724D8---XEPSD30P12WS0-XBJSD30P10000-XEPSD30P12000-XBMSD30P08000-XEPSD30P08000-XBSSD30P04000-A
XBPSN40P12JS0-M-MS-0808-5840 LBOSM1069D8---M-MS-0808-8261 LANGF2063D8---A
XBJSD30P04000-XBPSN40P10JS0-PISLV0218D8---PCUSS1402D8---PCUSG1608D8---M-WR-0828-0653 QCNWS0908-8016M-WR-0828-0652 QCNWS0907-8015M-WR-0828-0650 QCNWS0904-8030CPWB-5419T8FUSA
B-SWB-0210-0042 DPWBN5418T8---B-AC-0215-0034 DPWBN5417T8---A-AD-0114-0155 RUNTP5511T8---TLABM4318D8T--TINSE2968D8---M-MS-0808-8329 DDSKC0038D8---A-VC-0101-0271 QCODS1584D8D--A-PC-0106-0180 QACC-1126D8D--TLABZ3903D8---A-AU-0120-0034 QCODK0030D8D--A-PC-0106-0181 QACC-1228T8D-FTLAB-5445D8---P-FM-0602-0797 SPAKA6468D8---A
P-BX-0601-0746 SPAKC3414D8---SSAKH1356D8-T-A
SPAKW1135D8---A
M-MS-0808-5875 SPAKK1703T8Z--SPAKK6273D8----
ViewSonic Corporation
Location
BASE
BASE FRONT COVER
BASE BACK COVER
BASE METAL
BASE SUPPORT
BASE*4/BASE SUPPORT*7
BASE FRONT COVER*4
CUSHION-A
CUSHION-B
CUSHION-C
CUSHION-D
HINGE ASSEMBLY
HIGH VOLTAGE LABEL
SPEAKER
CAB-A
CAB-B
KNOB
LENS
SPEAKER-COVER
BACK COVER
VE-LOGO
VESA METAL
D-SUB METAL
HINGE SUPPORT
VESA GUM
VIEWSONIC TEXT LOGO
LOGO PLATE (BIRDS MARK)
SPEAKER*4
FOR CAB-A*2
CAB-A*1
FOR CAB-B*5
FOR SW BOARD*4
D-SUB*3/HINGE SUPPORT*6
HINGE SUPPORT WITH MAIN METAL*3
BOSS FPR SUB
KENSINGTON BRACKET
FOR D-SUB*5
HINGE SUPPORT WITH MAIN METAL*2
DECORATION PLATE
SPEAKER SPONGE
SPEAKER SCREW RUBBER
SW WIRE
AUDIO WIRE
SPEAKER WIRE
FUJISTU PANEL (19")
CONTROL BOARD ASS'Y
AUDIO BOARD ASS'Y
AC ADAPTOR (VSC 12V/5A)
MODEL LABEL
USER'S MANUAL
INF FILE DEVICE
SIGNAL CABLE
AC POWER CORD
UPC LABEL
AUDIO CABLE
POWER CORD (EU 1.8M BLACK)
S/N LABEL
PACKING
CARTON
BAG
PALLET
CONNER PAPER
CONNER PAPER
18
Confidential – Do Not Copy
QTY
(pcs)
1
1
1
1
1
11
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
4
2
1
5
4
9
3
2
1
5
2
1
2
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0.25
0.125
VG900b-1
Name: CPWB-5419T8FUSA
Item Product
ViewSonic P/N
No.
No.
1
421001 M-LCD-0826-0136
2
421002 B-MB-0201-0697
3
421003 B-SB-0221-0463
4
421701 M-MS-0808-8262
5
421702 M-MS-0808-8267
6
421703 M-MS-0808-8268
7
421704
8
421704
9
421705
10
421705
11
421706
12
421707
13
421708
14
421A01 M-WR-0828-0654
15
421A02 M-WR-0828-0651
ViewSonic Corporation
Part No.
VVLFLC48SXC8V-DPWBN5419T8---A
RUNTP5523T8---LANGF2068D8---PSLDM6477D8---PSLDM6478D8---A
PISL-1250D8---PISL-1250D8---A
PISL-1256D8---PISL-1256D8---A
XBJSD30P10000-XHISD30P06000-LHLDW1145D8---QCODS1576D8---QCNWS0906-8022-
Location
FUJISTU PANEL (19")
M/B BOARD ASS'Y
INVERTER BOARD
MAIN METAL
M/B SHIELD
INVERTER SHIELD
INVERTER MYLER
INVERTER MYLAR
INVERTER SHIELD MYLER
INVERTER SHIELD MYLAR
FOR LCD PANEL
FOR INV*4, M/B*5 ,AU*4, SHIELD*9, INV*5
PANEL WIRE HOLDER
PANEL WIRE
INVERTER WIRE
19
Confidential – Do Not Copy
QTY
(pcs)
1
1
1
1
1
1
1
1
1
1
4
27
1
1
1
VG900b-1
8. EXPLODED DIAGRAM
ViewSonic Corporation
20
Confidential – Do Not Copy
VG900b-1
NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
VIEWSONIC P/N
C-FP-0301-0894
M-MS-0808-8262
M-MS-0808-8263
B-MB-0201-0697
B-SB-0221-0463
B-AC-0215-0034
M-MS-0808-8258
M-MS-0808-8267
M-MS-0808-8264
M-CV-0830-2342
C-BC-0302-0436
M-LB-0813-0710
M-CV-0830-2335
M-MS-0808-8257
PL-NB-0707-0175
E-SK-0412-0054
B-SWB-0210-0042
M-MS-0808-8265
M-CV-0830-2336
M-MS-0808-8260
M-CV-0830-2337
PL-PS-0715-0168
M-MS-0808-8259
ViewSonic Corporation
MECHANICAL PARTS LIST
PART NO
QTY
REMARK
GCABA2104D8F--1
CAB-A
CPWB-5419T8FUSA
1
FUJITSU PANEL(19")
LANGF2068D8---1
MAIN METAL
LANGH0029D8---1
HINGE SUPPORT
DPWBN5419T8---A
1
M/B BOARD ASS'Y
RUNTP5523T8---1
INVERTER BOARD
DPWBN5417T8---1
AUDIO BOARD ASS'Y
LANG-2050D8---1
D-SUB METAL
PSLDM6478D8---1
INVETER SHIELD
PSLDM6477D8---1
SHIELD
LANGN1714D8---1
VESA METAL
GCABB1769D8F--1
CAB-B
GCOVD2442D8F--1
BACK COVER
HBDG-1278D8F--1
VE-LOGO
GMSKP1325D8F--1
SPEAKER-COVER
HDECP1937D8F--1
LENS
JKNBP2311D8F--1
KNOB
RSPKCL015D84FG2
SPEAKER
DPWBN5418T8---1
CONTROL BOARD ASS'Y
MHNGM0031D8---1
HINGE ASSEMBLY
GSTN-2876D8F--1
BASE FRONT COVER
LANG-2052D8---1
BASE SUPPORT
GSTN-2877D8F--1
BASE-BACK COVER
GSTN-2875D8F--1
BASE
LANG-2051D8---1
BASE METAL
21
Confidential – Do Not Copy
VG900b-1
9 . SCHEMATIC DIAGRAM
3V3
U2
3V3
BEAD(0805)
2
4
0.1u
C3
0.1u
C4
C25
0.1u
INPUT OUTPUT
SINK
C26
NC(100u/16v)
NC(0.1u)
U1
2
4
C28
C27
C8
C9
C10
0.1u
0.1u
100u/16v
0.1u
0.1u
C11
0.1u
C12
0.1u
C13
0.1u
C14
0.1u
C19
AIC1732
P3V3
INPUT OUTPUT
SINK
C20
10u/16V
T11
BEAD(0805)
5V_STBY
A3V3
3
GND
C2
0.1u
L1
T10
A3V3
1
C1
L3
NC (AIC1732)
3
GND
5V_STBY
L2
+3V3
C21
1
NC [BEAD(0805)]
T9
3V3
0.1u
C29
0.1u
C22
100u/16V
T1
VCLK00
T7
9883_VS
T2
ASIC_H
T8
VSYNC_DDC
T3
MCU_V_IN
T9
+3V3
T4
MCU_H_IN
T10
A3V3
T5
COAST
T11
P3V3
T6
9883_HS
D1
1
2
1
2
1
2
0.1u
D2
BAV99
D3
BAV99
A3V3 P3V3
BAV99
+3V3
C32
NC
26
27
39
42
45
46
51
52
59
62
75
54
R3
75
C33
G_IN
L5
R4
BEAD
49
SOGIN
48
Gain
43
Bain
R5
75
C35
R6
BEAD
C36
T7
9883_HS
38
CLAMP
30
HSYNC
31
VSYNC
33P
9883_VS
3V3
R10
33
1
A1
VCC
14
C40
2
B1
A6
13
47P
3
A2
B6
12
4
B2
A5
11
VGA_HS
2
5.6V
2K
R15
2K
5
A3
B5
10
6
B3
A4
9
GND
B4
8
7
P3V3
0.1U
R11
C39
3.3K
0.039u
C41
MCU_SDA1
MCU_SCL1
9883_VS
3900P
R12
R13
T5
150
150
C42
C43
0.1u
0.1u
R16 150
1
COAST
58
REF
37
MIDSCV
R17
R18
33
FILT
57
56
55
SDA
SCL
A0
DATACLK
HSOUT
VSOUT
SOGOUT
67
66
64
65
B_INA7
B_INA6
B_INA5
B_INA4
B_INA3
B_INA2
B_INA1
B_INA0
7
6
5
8
7
6
5
1
2
3
4
1
2
3
4
G_INA7
G_INA6
G_INA5
G_INA4
G_INA3
G_INA2
G_INA1
G_INA0
7
6
5
8
7
6
5
1
2
3
4
1
2
3
4
R_INA7
R_INA6
R_INA5
R_INA4
R_INA3
R_INA2
R_INA1
R_INA0
RP4 33RP
RP5 33RP 8
RP6 33RP
L7 1
L8 1
L9 1
L101
2
2
2
2
G_INA[0..7]
R_INA[0..7]
B_INA[0..7]
G_INA[0..7]
R_INA[0..7]
T1 T2 T3 T4
0
bead
bead
bead
VCLK00
ASIC_H
MCU_V_IN
MCU_H_IN
C44
C45
10p
33P
VSYNC_MCU
U4 74LVX14
22
C46
150
NC
9883_HS
C47
T8
47p
5V_STBY
2
1
5.6V
R14
C38
1
2
VGA_VS
ZD2
29
AD9883-140
R8
10K
ZD1
B7
B6
B5
B4
B3
B2
B1
B0
12
13
14
15
16
17
18
19
U3
7
6
5
8
7
6
5
1
2
3
4
1
2
3
4
RP2 33RP
RP3 33RP 8
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
10K
G7
G6
G5
G4
G3
G2
G1
G0
2
3
4
5
6
7
8
9
RP1 33RP 8
1
10
20
21
24
25
28
32
36
40
41
44
47
50
53
60
61
63
68
80
R9
70
71
72
73
74
75
76
77
T6
NC
75
C37
47
0.047u
B_INA[0..7]
R7
R6
R5
R4
R3
R2
R1
R0
0.047u
NC
R_IN
R7
Rain
C34
75
L6
11
22
23
69
78
79
0.047u
NC
VDD
VDD
VDD
VDD
VDD
VDD
C30
C31
34
35
R2
BEAD
VD
VD
VD
VD
VD
VD
VD
VD
VD
VD
L4
PVD
PVD
75
3
B_IN
3
3
R1
5V_VGA
D4
2
3
DAN202U
R21 100
1
5V_STBY
R23
8
7
6
5
R22 100
VCC NC
VSYNC NC
SCL NC
SDA GND
ZD10
C48
U5
1
2
3
4
5.6V
0.1U
1
bead
10K
2421
2
L11
R19
10K
ZD3
ZD4
MCU_ISP_SDA
5.6V
5.6V
MCU_ISP_SCL
DPWBN5419T8---BOARD ID: QPWB-5419T8---C
1
bead
2
VGA_SCL
VGA_SDA
L12
R20
10K
R24 100
C49
VGA_CON
2
VGA_CONN
ZD5
1000P
Title
5.6V
VIEWSONIC VG900b
1
Size
Document Number
Custom
Date:
ViewSonic Corporation
22
Confidential – Do Not Copy
VG900b-1
Thursday, July 04, 2002
Rev
C
9883-140
Sheet
1
of
8
T20
3_3Va
L13
BEAD(0805)
D3_3V
T23
T21
C52
L14
C53
0.1u
BEAD(0805)
P3_3V
0.1u
C55
10u/16v
0.1u
T22
3_3Va
L15
G_INB[0..7]
RP8
RP7
5
6
7
8 RP12
5
6
7 33RP
8
33RP
33RP O3_3V
RP9
O3_3V
BEAD(0805)
RP10RP11
33RP
BEAD(0805)
4
3
2
1
4
3
2
1
C66
B_INB7
B_INB6
B_INB5
B_INB4
B_INB3
B_INB2
B_INB1
B_INB0
0.1u
D3_3V
C61
0.1u
0.1u
O3_3V
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
RX_D2+
RX_D2A3_3V
RX_D1+
RX_D1-
RX_D0+
RX_D0PKA_GND
RX_CLK+
RX_CLK-
P3_3V
U7
8
2
A1
WP
7
3
A2
SCL
6
4
VSS SDA
5
510
PKP_GND
OGND
QO23
OVCC
AGND
RX2+
RX2AVCC
AGND
AVCC
RX1+
RX1AGND
AVCC
AGND
RX0+
RX0AGND
RXC+
RXCAVCC
EXT_RES
PVCC
PGND
RESERVED
OCK_INV
A3_3V
QO1
QO0
HSYNC
VSYNC
DE
OGND
ODCK_O_CLK
OVCC
CTL3
CTL2
CTL1
GND
VCC
QE23
QE22
QE21
QE20
QE19
QE18
QE17
QE16
OVCC
OGND
QE15
QE14
U6
SI151
O3_3V
1
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
2
0.1u
10u/16v
D3_3V
1
2
3
4
1
2
3
4
1
R31
R32 100
5V_DDC
NC
PDO
DDC_SCL
R33
R34
4.7K
100
R36
O3_3V
RP15
1
2
3
4
1
2
3
4
33RP
G_INA[0..7]
33RP
8
7
6
5
8
7
6
5
B_INA[0..7]
RP17
8
7
6
5
8
7
6
5
ZD8
5.6V
5.6V
R_INA[0..7]
T20
D3_3V
T24
HSYNC_D
T21
P3_3V
T25
VSYNC_D
T22
O3_3V
T26
DE_IN
T23
A3_3V
T27
VCLK01
G_INA[0..7]
G_INA7
G_INA6
G_INA5
G_INA4
G_INA3
G_INA2
G_INA1
G_INA0
B_INA[0..7]
B_INA7
B_INA6
B_INA5
B_INA4
B_INA3
B_INA2
B_INA1
B_INA0
RP18
33RP
BEAD(0603)
GND
DPWBN5419T8---BOARD ID: QPWB-5419T8---C
PKP_GND
100
ZD7
R_INA[0..7]
R_INA7
R_INA6
R_INA5
R_INA4
R_INA3
R_INA2
R_INA1
R_INA0
2
4.7K
33p
RP14 33RP
L16
DDC_SDA
R35
C63 33
33p
7
6
5
8
7
6
5
1 33RP
2
3
4
1
2
3
4
SCDT
R26
C62
RP13 8 33RP
RP16
R29 100
VCLK01
0
5V_STBY
ZD6
5.6V
0.1u
R25
O3_3V
PD
2
C65
C69
HSYNC_D
VSYNC_D
DE_IN
5V_DDC
3
C64
0.1u
T24 T25 T26 T27
D3_3V
D5 DAN202U
24C02
C68
B_INB[0..7]
33RP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
VDD
2
L18
BEAD(0603)
GND
PKA_GND
1
10K
A0
1
R30
R27
1
0.1u
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
0.1u
C60
QO22
QO21
QO20
QO19
QO18
QO17
QO16
GND
VCC
QO15
QO14
QO13
QO12
QO11
QO10
QO9
QO8
OGND
OVCC
QO7
QO6
QO5
QO4
QO3
QO2
0.1u
C59
DFO
PD
ST
PIXS
GND
VCC
STAG_OUT
SCDT
PDO
QE0
QE1
QE2
QE3
QE4
QE5
QE6
QE7
OVCC
OGND
QE8
QE9
QE10
QE11
QE12
QE13
22u/16v
C58
C67
22u/16v
B_INB[0..7]
C57
A3_3V
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
33RP
C56
L17
G_INB[0..7]
G_INB0
G_INB1
G_INB2
G_INB3
G_INB4
G_INB5
G_INB6
G_INB7
C54
8
7
6
5
8
7
6
5
0.1u
R_INB0
R_INB1
R_INB2
R_INB3
R_INB4
R_INB5
R_INB6
R_INB7
C51
22u/16v
3_3Va
R_INB[0..7]
8
7
6
5
8
7
6
5
3_3Va
C50
R_INB[0..7]
Title
ViewSonic Corporation
23
Confidential – Do Not Copy
VG900b-1
ViewSonic VG900b
Size
Custom
Document Number
Date:
Thursday, July 04, 2002
Rev
C
SIL151
Sheet
of
BB7
BB6
BB5
BB4
BB3
BB2
BB1
BB0
B_INA4
B_INA5
B_INA6
B_INA7
R37
R38
ASIC_H
VSYNC_MCU
DE_IN
0
0
C71
3900p
1
2
3
4
1
2
3
4
8
7
6
5
8
7
6
5
CR6
NC(CP)
CR8
NC(CP)
8
7
6
5
NC(CP)
CR7
RP27 1
8 33RP
7
6
5
RB7
RB6
RB5
RB4
RP28 1
8 33RP
7
6
5
RB3
RB2
RB1
RB0
RP29 1
8 33RP
7
6
5
RA7
RA6
RA5
RA4
8 33RP
7
6
5
RA3
RA2
RA1
RA0
2
3
4
2
3
4
2
3
4
RP30 1
2
3
4
ROM_SCL
T31
ROM_SDA
T32
ASIC_SCL
T33
ASIC_SDA
T34
LCD_DE
T35
LCD_CLK
T36
OSD_VS
T37
OSD_HS
T38
VCLK1
NC(CP)
8
7
6
5
CR5
T30
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
33RP
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0
RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
FCLK1
T39
T40
FBLK
T41
OSD_B
T42
OSD_G
T43
OSD_R
T44
12MHZ
T45
3V3SD
HSYNC_X
CR9
CR10
NC(CP)
CR11
NC(CP)
CR12
NC(CP)
NC(CP)
B_INB[0..7]
8
7
6
5
8
7
6
5
8
7
6
5
8
7
6
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
33P
C72
33RP
GB7
GB6
GB5
GB4
GB3
GB2
GB1
GB0
GA7
GA6
GA5
GA4
GA3
GA2
GA1
GA0
1
2
3
4
B_INA0
B_INA1
B_INA2
B_INA3
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
1
2
3
4
B_INA[0..7]
G_INB4
G_INB5
G_INB6
G_INB7
B_INA[0..7]
G_OUT6_O
G_OUT5_O
G_OUT4_O
VDD
G_OUT3_O
G_OUT2_O
G_OUT1_O
G_OUT0_O
GND
GND
G_OUT7_E
G_OUT6_E
G_OUT5_E
VDD
G_OUT4_E
G_OUT3_E
G_OUT2_E
G_OUT1_E
G_OUT0_E
GND
R_OUT7_O
R_OUT6_O
R_OUT5_O
R_OUT4_O
VDD
R_OUT3_O
R_OUT2_O
R_OUT1_O
R_OUT0_O
GND
R_OUT7_E
R_OUT6_E
GND
R_OUT5_E
VDD
VDD
R_OUT4_E
GND
VSYNC_X
HSYNC_X
33RP
1
2
3
4
G_INB2
G_INB3
SD1210
GB7
GB6
GB5
GB4
GB3
GB2
GB1
GB0
GA7
GA6
GA5
GA4
GA3
GA2
GA1
GA0
33RP
1
2
3
4
G_INB0
G_INB1
U8
8
7
6
5
8
7
6
5
8
7
6
5
8
7
6
5
8
7
6
5
G_INB[0..7]
2
3
4
RP24 1
2
3
4
RP25 1
2
3
4
RP26 1
2
3
4
8
7
6
5
G_INA6
G_INA7
R_IN14
VDD
R_IN13
R_IN12
GND
R_IN11
R_IN10
R_IN07
R_IN06
R_IN05
R_IN04
VDD
R_IN03
R_IN02
R_IN01
R_IN00
GND
B_OUT7_O
B_OUT6_O
B_OUT5_O
B_OUT4_O
VDD
B_OUT3_O
B_OUT2_O
B_OUT1_O
B_OUT0_O
GND
B_OUT7_E
VDD
VDD
B_OUT6_E
B_OUT5_E
B_OUT4_E
B_OUT3_E
B_OUT2_E
B_OUT1_E
B_OUT0_E
GND
GND
G_OUT7_O
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
G_INA4
G_INA5
R_IN15
R_IN16
R_IN17
GND
G_IN00
G_IN01
G_IN02
G_IN03
VDD
G_IN04
G_IN05
ADC_CLK0
G_IN06
G_IN07
GND
G_IN10
G_IN11
ADC_CLK1
G_IN12
G_IN13
VDD
G_IN14
G_IN15
G_IN16
G_IN17
GND
B_IN00
B_IN01
B_IN02
VDD
B_IN03
B_IN04
B_IN05
B_IN06
B_IN07
GND
HSYNC_I
VSYNC_I
DE_IN
VDD
B_IN10
B_IN11
B_IN12
B_IN13
DATA_SEL
B_IN14
B_IN15
B_IN16
B_IN17
ROM_SCL
ROM_SDA
GND
CPU_SCL
CPU_SDA
PWM_CTL
CLK_1M
VDD
CLK_1M_O
RESET_B
R_OSD
G_OSD
B_OSD
EN_OSD
SCAN_EN
TEST_EN
VCLK01
FCLK0
VCLK00
FCLK1
VCLK1
HSYNC_O
VSYNC_O
DCLK_OUT
DE_OUT
GND
VDD
R_OUT0_E
R_OUT1_E
R_OUT2_E
R_OUT3_E
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
G_INA0
G_INA1
G_INA2
G_INA3
G_INB[0..7]
NC(CP)
1
2
3
4
1
2
3
4
1
2
3
4
RP23 1
R_INB5
R_INB6
R_INB7
G_INA[0..7]
CR4
NC(CP)
33RP
33RP
3V3SD
G_INA[0..7]
CR3
NC(CP)
8
7
6
5
8
7
6
5
RP22
CR2
NC(CP)
RP20
8
7
6
5
CR1
33RP
33RP
R_INB0
R_INB1
R_INB2
R_INB3
R_INB4
1
2
3
4
RP19
RP21
8
7
6
5
8
7
6
5
R_INB[0..7]
1
2
3
4
R_INA0
R_INA1
R_INA2
R_INA3
R_INA4
R_INA5
R_INA6
R_INA7
BA7
BA6
BA5
BA4
BA3
BA2
BA1
BA0
1
2
3
4
R_INB[0..7]
BA7
BA6
BA5
BA4
BA3
BA2
BA1
BA0
R_INA[0..7]
8
7
6
5
R_INA[0..7]
BB7
BB6
BB5
BB4
BB3
BB2
BB1
BB0
B_INB[0..7]
B_INB0
B_INB1
B_INB2
B_INB3
B_INB4
B_INB5
B_INB6
B_INB7
T30 T31 T32 T33
T34 T35 T36 T37
R39
T38 T39 T40 T41
T42 T43 T44
33
ROM_SCL
ROM_SDA
R40
33
R41
R42
R44
33
ASIC_SCL
ASIC_SDA
3V3
U9
1
A0
2
3
4
R43
33
33
33
LCD_DE
LCD_CLK
OSD_VS
OSD_HS
ROM_SCL_ASIC
24LC08
C73
VCLK1
FCLK1
VDD
8
A1
WP
7
A2
SCL
6
R48
NC
VSS SDA
5
R49
33
R46
4.7K
R45
4.7K
ROM_SCL_EEPROM
VCLK00
R47
0.1u
VCLK01
FBLK
OSD_B
OSD_G
OSD_R
C74
NC
NC(47P)
12MHZ
ASIC_RESET
R50
22
DPWBN5419T8---BOARD ID: QPWB-5419T8---C
T45
3V3b
3V3SD
L19
BEAD(0805)
C75
100u/16v
C76
0.1u
C77
0.1u
C78
0.1u
C79
0.1u
C80
0.1u
C81
0.1u
C82
0.1u
C83
0.1u
C84
0.1u
C85
0.1u
C86
0.1u
C87
0.1u
C88
0.1u
C89
Title
0.1u
ViewSonic VG900b
Rev
Size
Document Number
Custom
C
SCALING CONTROLLOR
Date:
ViewSonic Corporation
24
Confidential – Do Not Copy
VG900b-1
Thursday, July 04, 2002
Sheet
of
U10
FCLK1
F14_SINGLE
2
VCC
A
Y
R51
U11
5
1
4
C93
C92
FBIN CLK2
2
IN
VDD
7
3
GND CLK1
6
4
FSO
5
NC
0.1u
NC
8
R52 22
3
HSYNC_X
NC
GND
1
5Vb
OE
L20
VCLK1
R53
4.7
C94
C95
C96
0.01u
NC
AV9173-01
R121
5Vb
BEAD(0805)
0.1u
NC
OSD_CLK
5Va
C98
16
0.1u
HSYNC_D
12
MCU_H_IN
13
1Y1
VSYNC_D
2
2Y0
MCU_V_IN
1
2Y1
VCC
U12
1Y0
1Z
14
HSYNC_IN
2Z
15
VSYNC_IN
3Z
4
E_
6
VEE
7
GND
8
3Y0
R56
22
3
3Y1
11
INPUT_SELECT
S3
5
ROM_SCL_EEPROM
DPWBN5419T8---BOARD ID: QPWB-5419T8---C
9
22
S1
ROM_SCL_ASIC
R55
10
ROM_SCL
S2
R54 22
High for Analog
74LV4053
Title
ASIC_RESET
Size
Custom
Date:
ViewSonic Corporation
25
Confidential – Do Not Copy
ViewSonic VG900b
Rev
Document Number
C
OSD & PLL1
Thursday, July 04, 2002
VG900b-1
Sheet
4
of
8
3V3LVDSD
U13
LCD_VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
RB1
RB7
GB2
GB3
GB4
GB0
R57
NC
R58
0
GB1
GB5
GB6
GB7
BB2
BB0
BB1
BB3
BB4
BB5
BB6
BB7
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
D4
VCC
D5
D3
D2
D6
GND
D7
GND
D1
D0
D8
D27
D9
D10
LVDSGND
Y0M
VCC
Y0P
D11
D12
Y1M
Y1P
D13
GND
LVDSVCC
D14
LVDSGND
D15
Y2M
D16
Y2P
CLKSELCLKOUTM
CLKOUTP
D17
D18
Y3M
D19
Y3P
GND LVDSGND
D20
PLLGND
D21
PLLVCC
D22
PLLGND
D23
SHTDN
VCC
CLKIN
D24
D26
D25
GND
RB6
RB5
RB4
J1
3V3LVDSA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
3V3LVDSP
RB3
RB2
RB0
LVDS_PD
LCD_CLK
LCD_DE
SN75LVDS83
VIN
VIN
VIN
GND
GND
GND
SELLVDS
VcontIN
DGND
RXOIN3+
RXOIN3RXOCLKIN+
RXOCLKINRXOIN2+
RXOIN2RXOIN1+
RXOIN1RXOIN0+
RXOIN0RXEIN3+
RXEIN3RXECLKIN+
RXECLKINRXEIN2+
RXEIN2RXEIN1+
RXEIN1RXEIN0+
RXEIN0LVDSGND
FI-SE30P-HF
3V3LVDSD
RA1
RA7
GA2
GA3
GA4
GA0
R59
NC
R60
0
GA1
GA5
GA6
GA7
BA2
BA0
BA1
BA3
BA4
BA5
BA6
BA7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
U14
VCC
D4
D5
D3
D6
D2
D7
GND
GND
D1
D8
D0
D9
D27
D10
LVDSGND
VCC
Y0M
D11
Y0P
D12
Y1M
D13
Y1P
GND
LVDSVCC
D14
LVDSGND
D15
Y2M
D16
Y2P
CLKSELCLKOUTM
D17
CLKOUTP
D18
Y3M
D19
Y3P
GND LVDSGND
D20
PLLGND
D21
PLLVCC
D22
PLLGND
D23
SHTDN
VCC
CLKIN
D24
D26
D25
GND
3V3b
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
RA6
RA5
RA4
3V3LVDSD
L21 BEAD(0805)
3V3LVDSA
RA3
RA2
RA0
C99
3V3LVDSP
C100
100u/16v
22U/16V
C101
C102
C103
C104
C105
C106
C107
C108
C109
C110
C111
C112
0.1u
0.01u
0.1u
0.01u
0.1u
0.01u
0.1u
0.01u
0.1u
0.01u
0.1u
0.01u
3V3LVDSA
L22
BEAD(0805)
C113
C114
C115
C116
C117
22U/16V
0.1u
0.01u
0.1u
0.01u
3V3LVDSP
L23
BEAD(0805)
LVDS_PD
LCD_CLK
LCD_DE
C118
C119
C120
C121
C122
22U/16V
0.1u
0.01u
0.1u
0.01u
DPWBN5419T8---BOARD ID: QPWB-5419T8---C
SN75LVDS83
Title
ViewSonic VG900b
Size
Custom
Document Number
Date:
ViewSonic Corporation
26
Confidential – Do Not Copy
VG900b-1
Rev
C
LVDS INTERFACE
Thursday, July 04, 2002
Sheet
of
5V_STBY
C126
C127
220P
NC
NC
R61
0.1u
R67
1K
Q2
1
MMBT3904L
C124
1K
3V3
R120
1K
R63
100
2
C125
C123
3
33
33
100
4.7K
4.7K
R64
R65
R66
R62
100
R110
FBLK
OSD_B
OSD_G
OSD_R
OSD_CLK
OSD_HS
OSD_VS
4.7KRP
4
3
2
1
5
6
7
8
R111
RP31
1u
4
3
2
1
BL_BRI
VSYNC_MCU
3V3
GREEN_LED
BL_ON_OFF
LED_AMBER
R69 2K
1M
1
x2
7
X1
8
X2
SD_MODE
9
P4.5
4
3
2
1
LED_GRN
RP34
RP35
4.7KRP
4.7KRP
39
LVDS_PD
P5.5/DA1
38
AUDIO_EN
P5.4/DA0
37
P4.4
P5.3/AD3
P4.3
P5.2/AD2
35
INPUT_SELECT
12
P4.2
P5.1/AD1
34
ADC1
13
P4.1/VSYNC
P5.0/AD0
33
ADC2
P1.7
32
30
17
P3.2/INT0
P1.4
29
X2
1
12MHZ
C134
NC
GND
1
VCC
14
1A
4OE_
13
1Y
4A
12
4
2OE_
4Y
11
5
2A
3OE_
10
2Y
3A
9
3Y
8
2
BEAD(0603)
2 3
6
7
1OE_
GND
8
7
6
5
4.7KRP
3
R152 100
RP38
Q1
4.7KRP
AUDIO_MUTE
P1.3
P1.2
P1.1
AUDIO_MU
MMBT3904L
1
R28
P1.0
VSS
RST
4.7KRP
RP37
MCU_SCL1
4.7K
28
27
26
25
24
PD
PDO
C133
SD_MODE
C132
C70
47u/16v
20
18
3V3
19
MCU_SDA1
3V3
5
6
7
8
PSC0
RP36
1
2
3
4
P1.5
VDD
U16
5V_STBY
4.7K
8
7
6
5
P3.1/Txd/HSDA
4.7KRP
PSC0
R151
1
2
3
4
16
1
2
3
4
P1.6
P6.1/ISDA
P3.0/Rxd/HSCL
31
RP39
PSC0
3V3
15
4
3
2
1
SCDT
P4.0/HSYNC
PSC1
8
7
6
5
33P
P6.0/ISCL
C131
SM0230
23
R76
33
14
P3.5/T1
MCU_ISP_SDA
33
220P
P3.4/T0
MCU_ISP_SCL
R75
C130
22
100
21
R74
330
HP_SENSE
11
R73
R71
5
6
7
8
5
6
7
8
P5.6/DA2
ASIC_RESET
HSYNC_IN
AMBER_LED
100K
36
VSYNC_IN
AMBER_LED
1
10
220
2K
2
R70
VGA_CON
U15
330
2N3906
3
4
3
2
1
40
P5.7/DA3
41
INT/P6.2
42
FBKG
43
BOUT
44
GOUT
1
ROUT
2
XIN
4
3
OSDHS
R153
R68
Q4
2
R72
22p
OSDVS
X1
12MHZ
C129
P4.7/VBLANK
2
P4.6/HBLANK
22P
5
6
C128
L24
Q3
2N3906
1
3V3
GREEN_LED
3
4.7K
R109
5
6
7
8
4.7KRP
2
4.7K
R108
RP33
0.1u
3V3
ROM_SDA
0.1u
ROM_SCL
D6
1N4148
R77
4.7K
LED_GRN
LED_AMBER
74LCX125
ASIC_SCL
8
VDD
A0
1
ASIC_SDA
7
WP
A1
2
A2
3
R78
33
6
R79
33
5
AUDIO_MUTE
SCL
C135
0.1u
SDA VSS 4
24LC16
U17
POWER_ON_OFF
R80
0
R81
NC
VCLK00
VCLK01
DPWBN5419T8---BOARD ID: QPWB-5419T8---C
Title
Size
Custom
Date:
ViewSonic Corporation
27
Confidential – Do Not Copy
VG900b-1
ViewSonic VG900b
Rev
Document Number
C
SMO230
Thursday, July 04, 2002
Sheet
of
T50
5Va
T51
BL_ENABLE
T52
BL_ADJUST
T53
LCD_VCC
T54
12V_AUDIO
T51 T52
L25
12V_INVERTER
BL_ENABLE
BL_ADJUST
C136
BEAD
L26
470u/16v
BL_BRI
BEAD
5Va
C137
0.1u
12V
R82
R83
1K
10K
3
add silk position "U18A"
C138
12V_INPUT
5
SHDN
5V_STBY
SW
L31
2
2
R86
L33 BEAD(1206)
4
D7 C144
0
SK24
R85
C145
C146
0
0.1u
BEAD(0805)
12V
C143
100u/16v
470u/16v
L32
NC(1206)
L34
NC(1206)
L36
BEAD(1206)
Q6
D
2
D
5
D
6
D
IRLMS1503
5Vb
R87
NC
T54
L37 BEAD(1206)
12V_AUDIO
G
CONTL
R88
C148
100K
L38
BEAD(1206)
0.1u
U19
L47
SI9433DY
S
6
D
S
2
5
D
S
1
3
R90
0.1U
24K
2
3V3
SINK
OUTPUT
4
2
C151
D
5
D
6
D
3V3b
S
100u/16v
4
R89
24K
C156
100u/16v
100u/16v
C157
0.1u
8
3
S
D
7
2
S
D
6
D
5
1
C155
D
S
C149
100u/16v
C153
0.1U
C150
R112
680
0.1u
C169
0.1u
3
C154
INPUT
AIC1084-33
4
G
0.1u
U21
IRLMS1503
G
D
3
Q7
D
G
1
D
GND
C152
7
12V
T53
LCD_VCC
BEAD(1206)
1
8
SI9435DY
4
U20
C147
100u/16v
3
L35 BEAD(1206)
4
S
1
470u/16v
GND_INPUT
1
L30 100UH
0.1u
470u/16v
BL_ON_OFF
MMBT3904L
2
8
7
C139
C142
FB
GND
C141
100u/16v
VIN
1
T50
5Va
GND
1
L30A 100UH
6
4A_FUSE
L29 BEAD(1206)
12V
GND
L28 BEAD(1206)
CY1032_SK
3
F1
0.1u
U18
GND
L27 BEAD(1206)
R84 22
Q5
5V_STBY
10K
Q9
C159
1
0.1u
100u/16v
Q10
1
PSC0
R99
2K
R102
MMBT3904L
MMBT3904L
Q11
1
PSC1
2K
R100
2K
MMBT3904L
R103
2K
2
DPWBN5419T8---BOARD ID: QPWB-5419T8---C
2K
Title
ViewSonic VG900b
Size
Custom
Document Number
Date:
ViewSonic Corporation
Q8
1
2
3
R982K
2
Q12
MMBT3904L
2K
R101
1
R97 2K
CONTL
C160
3
MMBT3904L
3
10K
R95
10K
3
R96
100K
R94
Bead
0.1u
2
L39
4.7K
C158
3
3_3Va
4.7K
R104
R93
2
R92
AUDIO_EN
R91
12V
5V_STBY
28
Confidential – Do Not Copy
VG900b-1
Rev
C
POWER
Thursday, July 04, 2002
Sheet
of
W1
17
17
11
11
VGA_SDA
12
12
VGA_HS
13
13
VGA_VS
14
14
VGA_SCL
15
15
1
6
2
7
3
8
4
9
5
10
1
6
2
7
3
8
4
9
5
10
R_IN
J2
G_IN
B_IN
5V_VGA
VGA_CONN
C161
0.1u
16
16
DB-15
JP1
ADC1
L40
BEAD(0805)
ADC2
L41
BEAD(0805)
AMBER_LED
L42
BEAD(0805)
GREEN_LED
L43
BEAD(0805)
POWER_ON_OFF
L44
BEAD(0805)
1
2
TMDS D2TMDS D2+
TMDS D2/4 SH
TMDS D4TMDS D4+
DDC CLK
DDC DATA
A_V_SYNC
TMDS D1TMDS D1+
TMDS D1/3 SH
TMDS D3TMDS D3+
+5V
GND
H_P_DETECT
TMDS D0TMDS D0+
TMDS D0/5 SH
TMDS D5TMDS D5+
TMDS CLK_SH
TMDS CLK+
TMDS CLK-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
A_GND
A_GND
31
32
RX_D2RX_D2+
DDC_SCL
DDC_SDA
RX_D1RX_D1+
5V_DDC
R105
4.7k
RX_D0RX_D0+
R106
R107
0
0
RX_CLK+
RX_CLK-
3
4
5
C162
C163
C164
C165
C166
0.1u
0.1u
0.1u
0.1u
0.1u
6
DVI-I connector
7
8
CON8
JP4
1
12V
2
12V
MCU_SCL1
3
SCL
MCU_SDA1
4
SDA
5
AUDIO_MU
6
GND
12V_AUDIO
JP2
1
2
3
4
5
6
12V_INVERTER
12V_INVERTER
GND
DIMMING
GND
ON/OFF
12V_INVERTER
L45
BEAD(0805)
BL_ADJUST
L46
BEAD(0805)
AUDIO_MU
BL_ENABLE
7
HP_SENSE
CON6
C167
C168
NC
NC
HP_SENSE
CON7
JP3
12V_INPUT
AI3
AI4
AI5
AI-D34
AI-D34
AI-D34
AI-D34
AI-D34
DPWBN5419T8---BOARD ID: QPWB-5419T8---C
1
AI2
1
AI1
1
2
1
12V
1
1
GND_IN
12V
4
3
GND
GND
GND
GND
GND
GND_IN
POWER JACK4P
5
6
7
8
9
GND_INPUT
Title
Size
Custom
Date:
ViewSonic Corporation
29
Confidential – Do Not Copy
VG900b-1
ViewSonic VG900b
Rev
Document Number
I/O INTERFACE
Thursday, July 04, 2002
Sheet
C
of
R108
100K
12VB
U22
C174
PT2313L
VOUT
C160
100U/16V
OUT
12
.
GND
10
9
.
OUT
8
Vcc
7
P.P
6
IN
STBY
5
11
470/16V
1
2
470U/16V
C171
0.1U
1
2
C158
C164
100
AUDIO_R
0.1U
C163
C165
100u
0.1U
4
R105
2.2
R106
TREB_L
18
19
12
2700P
C170
2.2
R115
C179
1.2K
LFOUT
25
RFOUT
24
LROUT
23
RROUT
22
1.0U/16V
R116
1.2K
R117
C180
1.0U/16V
R118
4.7K
4.7K
L48 BEAD
L49 BEAD
C186
C188
C187
C181
0.1U
2.2U/16V
*
2
100U/16V
C184
22U/16V
*
J5 PC_Audio
16
3
GND
VIN
2
LM78L09
BIN_R
VDD
LIN3
U24
1
17
RIN3
BOUT_R
9
13
12VB
C176
TREB_R
LIN2
BIN_L
14
BOUT_L
RIN2
LOUD_L
10
20
2.4k
2.2U/25V
*
10K
3.9V
*
LIN1
LOUD_R
10K
15
R114
C178
R191
ZD191
RIN1
21
R192
3.9V
*
11
8
ZD192
10
LIN
R113
2.2U/25V
*
AV1_R
RIN
C177
DGND
U23
HEADER 6
LOUT
7
ROUT
NC
0.1U
*
0.1U
**
6
6
JP3
C161
AUDIO_L
33
28
GND
R112
CLK
5
C172
REF
Mute
C162
470U/16V
C173
2.2U/16V
*
7
4
1
SDA
33
27
3
DADA
SCL
5.6K
*
R111
AGND
12V
2
R110
0.1U
*
26
1
3
12V
4
1K
C175
0.1U
5
JP6
1
R109
C169
3
10UH
2
L47
IN
DC
12VB
GND
LA4635
C185
0.1U
*
C182
0.1U
*
GND_AUDIO
GND_PRE
C183
0.1U
*
2700P
*
R119
5.6K
*
L50 BEAD
*
4
2
1
AV1_R
AV1_L
C189
C190
10P
10P
L51
BEAD
*
C191
C192
10P
10P
L52
121A
Title
Size
B
Date:
ViewSonic Corporation
30
Confidential – Do Not Copy
VG900b-1
ViewSonic VG900b
AUDIOSheet
Thursday, July 04, 2002
-
Rev
Document Number
of
L53
BEAD
2
L54
BEAD
3
L55
BEAD
4
L56
BEAD
5
L57
BEAD
SW1
5
POWER
4
1
100pF
AMB
8
C193
GRN
7
2
3
6
1
1
3
JP7
LED1
LED2
R121
4.7K
2.2K
C194
R122
R123
7.5K
4.7K
R125
R126
2.2K
20K
7.5K
SW4
2
3
100pF
2
3
2
3
2
3
2
3
100pF
C195
R124
2
3
R120
2
3
2
HEADER 8
VOLUME_DOWN
SW7
5
4
1
ENTER
SW8
5
MUTE
VOLUME_UP
4
1
SW6
5
MENU
4
1
SW5
5
DOWN
4
1
4
1
UP
5
4
1
SW3
5
4
1
SW2
5
Title
<Title>
Size
A
Date:
ViewSonic Corporation
31
Rev
Document Number
KEYPAD
Sheet
Thursday, July 04, 2002
Confidential – Do Not Copy
VG900b-1
10
of
10
10. PCB LAYOUT DIAGRAM
ViewSonic Corporation
32
Confidential – Do Not Copy
VG900b-1