ViewSonic VA2226w-1 Service Manual

ViewSonic VA2226w-1

Model No. VS11803

22” Color TFT LCD Display

(VA2226w-1_SM Rev. 1a Aug. 2007)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - [phone]

Service Manual

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Copyright

Copyright © 2007 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

Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.

Product disposal at end of product life

The lamp in this product contains mercury. Please dis pose of in accordance with local, state or
federal laws.

Revision History

Revision SM Editing Date ECR Number Description of Changes Editor

1a 8/16/2007 Initial Release Jamie Chang

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TABLE OF CONTENTS

1. Precautions and Safety Notices ......................................................................................... 1

2. Specification ....................................................................................................................... 4

3. Front Panel Function Control Description ..................................................................... 27

4. Circuit Description............................................................................................................. 32

5. Adjusting Procedure .......................................................................................................... 42

6. Trouble Shooting Flow Chart ............................................................................................ 53

7. Block Diagrams ................................................................................................................ 61

8. Schematic Diagrams ........................................................................................................ 62

9. PCB Layout Diagrams ...................................................................................................... 67

10. Exploded Diagram And Spare Parts List........................................................................ 71

11. Recommended Spare Parts List .................................................................................... 74

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1. Precautions and Safety Notices

1. SAFETY PRECAUTIONS

This monitor is manufactured and tested on a ground principle that a user’s safety comes first.

However, improper used or installation may cause damage to the monitor as well as to the user.

WARNINGS:

 This monitor should be operated only at the correct power sources indicated on the label on

the rear of the monitor. If you’re unsure of the power supply in you residence, consult your

local dealer or Power Company.

 Use only the special power adapter that comes with this monitor for power input.
 Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. Only the

qualified technician can repair it.

 Do not remove the monitor cabinet. There are high-voltage parts inside that may cause

electric shock to human bodies.

 Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
 Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable

immediately and consult your closed dealer.

 Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply

non-ammonia based cleaner onto the cloth, not directly onto the glass screen.

 Do not place heavy objects on the monitor or power cord.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety visual inspections and

the protection afforded by them cannot necessarily be obtained by using replacement

components rated for higher voltage, wattage, etc. Before replacing any of these components

read the parts list in this manual carefully. The use of substitute replacement parts, which do not

have the same safety characteristics as specified in the parts list, may create shock, fire, or other

hazards.

3. SERVICE NOTES

 When replacing parts or circuit boards, clamp the lead wires around terminals before

soldering.

 Keep wires away from high voltage, high temperature components and sharp edges.
 Keep wires in their original position so as to reduce interference.
 Adjustment of this product please refers to the user’ manual.

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4. Handling and Placing Methods

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2. Specification

Product definition and specification

Product Name ViewSonic VA2226w

Oracle P/N VA2226W

Model Number VS11803

OSD Languages

English, French, German, Italian, Spanish, Finnish,
Japanese, Russian Simplified Chinese, Traditional
Chinese, Korean

TFT LCD Panel and Model #

1 st

: INL MT220WW01 V0

2nd : AUO M220EW01 V0

3rd : INL MT220W01 V2

Scalar MST TSUMU58WHJ-LF

Input Signal Analog x1 / Digital x1

Sync Compatibility Separate Sync / Composite Sync / SOG

Adapter Internal Power Board

Power Cable

Yes,

refer to APPENDIX B: Power Cable

A

nalog Cable (1.8 m, black), with PC 2001 and

Hot Plug Detect &DDC

Yes

(Detached cable; refer the Appendix A)

DVI-D Cable(1.8m, black) with PC 2001 For Region code = P/A/J/K/S units only

Audio Cable(1.8m, black) with PC 2001 Yes

MIC Cable(1.8m, black) with PC 2001 No

USB Cable (V2.0) No

ViewSonic CD Wizard

ViewSonic Quick Start Guide

Arabic, English, Finnish, Spanish, German,

Italian, Japanese, Swedish, Polish, Korean,

Portuguese, Russian, Turkish , French, Czech,

Hungarian, Simplified Chinese, Traditional

Chinese
Greek, Dutch.

PerfectSuite CD No

Screen Protector Mylar Yes

Foot Protector plastic No

Energy start sticker Yes

Service Insert For Region code = M units only

Warranty Sticker For Region code = G units only

Warranty Card For Region code = G units only

Carton Sticker For Region code = G units only

PE bag of Carton For Region code = G units only

Manufacture address sticker For Region code = G units only

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2-1 GENERAL specification

Test Resolution & Frequency 1680x1050@ 60Hz

Test Image Size Full Size

Contrast and Brightness Controls

Factory Default:

Contrast = 70%, Brightness = 100%

2-2 VIDEO INTERFACE

Input Connector (refer the Appendix A) Analog = DB-15

Digital = DVI-D

Default Input Connector Defaults to the first detected input

Video Cable Strain Relief

Equal to twice the weight of the monitor for

five minutes

Video Cable Connector Pin out Refer to Appendix A; Compliant DDC/CI

Video Signals

Video RGB (Analog)

Separate Sync / Composite Sync / SOG

TMDS (Digital)

Video Impedance 75 Ohms (Analog), 100 Ohms (Digital)

Maximum PC Video Signal 950 mV with no damage to monitor

Maximum Mac Video Signal 1250 mV with no damage to monitor

Sync Signals TTL

DDC/CI Compliant with version 1.1

Digital link protection HDCP

Sync Compatibility Separate Sync / Composite Sync / SOG

Video Compatibility

Shall be compatible with all PC type

computers, Macintosh computers, and after

market video cards

Resolution Compatibility Refer to Segment 2-5

Exclusions Not compatible with interlaced video

2-3 USB INTERFACE

No USB interface

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2-4 POWER SUPPLY

Internal Power Supply Part Number RLPR-025

Input Voltage Range 90 to 264 VAC

Input Frequency Range 47 to 63 Hertz

Short Circuit Protection Output can be shorted without damage

Over Current Protection 5A typical at 14.0 VDC

Leakage Current 3.5mA (Max) at 254VAC / 60Hz

Efficiency (at 115VAC Full Load) Typical: 80%

Minimum: 75%

Fuse Internal and not user replaceable

Power Output 38 Watts (typ)

Ripple and Noise

Ripple: <3%

Noise: <1%

Max Input AC Current 1.5 Arms @ 90VAC, 0.75 Arms @180VAC

Inrush Current (Cold Start)

50 A (max) @ 115VAC

90 A (max) @ 230VAC

Power Supply Cold Start

Shall start and function properly when under full load,

with all combinations of input voltage, input frequency,

and operating temperature.

Power Supply Transient Immunity

Shall be able to withstand an ANSI/IEEE C62.41-1980

6000V 200 ampere ring wave transient test with no

damage.

Power Supply Line Surge Immunity

Shall be able to withstand 1.5 times nominal line

voltage for one cycle with no damage.

Power Supply Missing Cycle Immunity

Shall be able to function properly, without reset or

visible screen artifacts, when ½ cycle of AC power is

randomly missing at nominal input.

Power Supply Acoustics

The power supply shall not produce audible noise that

would be detectable by the user. Audible shall

defined to be in compliance with ISO 7779 (DIN

EN27779:1991) Noise measurements of machines

acoustics. Power Switch noise shall not be

considered.

Power Saving Operation(Method) VESA DPMS Signaling

Power Consumption

Mode LED Power Consumption

On Blue 38W (typ)

43W (max)

Active off Amber <2W

Off Off <1W

Recovery Time On Mode = N/A, Active Off < 3 sec

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2-5 ELECTRICAL REQUIREMENT

Horizontal / Vertical Frequency

Horizontal Frequency

24 – 82 kHz

Vertical Refresh Rate

50 – 75 Hz

Maximum Pixel Clock 135 MHz

Sync Polarity Independent of sync polarity

Timing Table

Timing Table

Analog

Item Timing

Separated

Composite

SOG

Digital - TMDS

Remark

1 640 x 350 @ 70 Hz, 31.5 KHz

   

DMT

2 640 x 400 @ 60 Hz, 31.5 KHz

   

3 640 x 400 @ 70 Hz, 31.5 KHz

   

4 640 x 480 @ 50 Hz, 24.7 KHz



5 640 x 480 @ 60 Hz, 31.5 KHz

   

DMT

6

640 x 480 @ 67 Hz, 35 KHz

  



For MAC

7 640 x 480 @ 72 Hz, 37.9 KHz

   

VESA

8 640 x 480 @ 75 Hz, 37.5 KHz

   

VESA

9 720 x 400 @ 70 Hz, 31.5 KHz

   

10 720 x 480 @ 60 Hz, 31.5 KHz

   

DTV

11 720 x 576 @ 50 Hz, 31.3 KHz



DTV

12 800 x 600 @ 56 Hz, 35.1 KHz

   

VESA

13 800 x 600 @ 60 Hz, 37.9 KHz

   

VESA

14 800 x 600 @ 72 Hz, 48.1 KHz

   

VESA

15 800 x 600 @ 75 Hz, 46.9 KHz

   

VESA

16 832 x 624 @ 75 Hz, 49.7 KHz

   

MAC

17 1024 x 768 @ 50 Hz, 39.6 KHz

   

18 1024 x 768 @ 60 Hz, 48.4 KHz

   

VESA

19 1024 x 768 @ 70 Hz, 56.5 KHz

   

VESA

20 1024 x 768 @ 75 Hz, 60 KHz

   

VESA

21 1152 x 864 @ 75 Hz, 67.5 KHz

   

VESA

22 1152 x 870 @ 75 Hz, 68.7 KHz

   

For MAC

23

1152 x 900 @ 67 Hz, 62.5 KHz

  



For SUN

24 1280 x 720 @ 50 Hz, 37.5 KHz

   

DTV

25 1280 x 720 @ 60 Hz, 45 KHz

   

DTV

26 1280 x 768 @ 50 Hz, 39.6 KHz

   

27 1280 x 768 @ 60 Hz, 47.8 KHz

   

CVT

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28 1280 x 768 @ 75 Hz, 60.3 KHz

   

CVT

29 1280 x 960 @ 50 Hz, 49.4 KHz

   

30 1280 x 960 @ 60 Hz, 59.7 KHz

   

VESA

31 1280 x 960 @ 75 Hz, 75.2 KHz

   

VESA

32 1280 x 1024 @ 50 Hz, 52.7 KHz

   

33 1280 x 1024 @ 60 Hz, 64 KHz

   

VESA

34 1280 x 1024 @ 75 Hz, 80 KHz

   

VESA

35 1440 x 900 @ 60 Hz 55.9 KHz

   

VESA

36 1440 x 900 @ 75 Hz 70.6 KHz

   

VESA

37 1600 x 1200 @ 60 HZ 75.0 KHz

   

VESA

38 1680 x 1050 @ 60 HZ 65.3 KHz

   

CVT

*1. Tolerance ≧ ±2KHz (if no overlapping issue)

*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message without

blanking.

*3. The image quality of 50Hz mode might be worse than 60Hz.

Primary Presets

1680x1050 @ 60Hz

User Presets

Number of User Presets (recognized timings) Available: 10 presets total in FIFO configuration

Changing Modes

● Maximum Mode Change Blank Time for image stability : 5 seconds (Max), excluding “Auto

Adjust” time

● Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting when

execute “Auto Adjust”

● The monitor needs to do “Auto Adjust” the first time a new mode is detected

(see section “0-Touch™ Function Actions”)

● While running Change Mode, Auto Adjust or Memory Recall, the image shall blank

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2-6 FRONT PANEL CONTROLS AND INDICATORS

2-6-1 Front Panel Hardware Controls

Power Switch (Front Head) Power Control, soft Power Switch.

Power LED (Front Head) Blue – ON

Amber – Active Off

Dark = Soft Power Switch OFF

Front Panel Controls (Head)

[

] [ 1 ] [ 2 ] [▲] [▼]

[

] Power

[ 1 ] BUTTON 1

[ 2 ] Button 2

[▲] UP ARROW BUTTON
[▼] DOWN ARROW BUTTON

Note: Power Button, Button 1 and Button 2

must be one-shot logic operation. (i.e. there

should be no cycling)

Reaction Time OSD must fully appear within 0.5s after

pushing Button 1

2-6-2 Short Cuts Function from the button(s)

[1] Main Menu

(refer to segment 2-6-3)

[2] Input toggle (Analog or Digital; refer to Appendix D)

[▼] To immediately activate Brightness menu. It should be change to

Contrast OSD by push button [2]

(refer to the Brightness OSD in segment 2-6-3)

[▲] To immediately activate Contrast menu. It should be change to

Brightness OSD by push button [2]

(refer to the Contrast OSD in segment 2-6-3)

[▼]+ [▲] Recall both of Contrast and Brightness to default without OSD

message.

[1] + [2] Toggle 720x400 and 640x400 mode when input 720x400 or

640x400 mode

[1] + [▼] + [▲]

(Keep pushing 5 sec)

White Balance

1. It will not shown on user’s guide

2. OSD message as below,

(Image = no blanking)

[1] + [▲] OSD Lock

(refer to segment 2-6-4)

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[1] + [▼] Power Lock

(refer to segment 2-6-5)

[2] + [▼] Switch DDC/CI and DDC/2B (DDC/CI enable/disable) and show

following message for 3 seconds,

When switch to DDC/CI

When switch to DDC/2B

[▲]

1. Long Press [up] key 3 seconds to switch DCR On/Off,

2. Loop: DCR On <=> DCR Off

When switch to DCR ON

When switch to DCR OFF

3. DCR Off in Factory mode.

4. Reset to default when re-power on/off

5. Message will appear only after Hot Key is pressed

[1]+ [ ] All reset

No signal + [ ] + [2] Burning mode

Signal + [2] + [ ] Factory Mode

Remark : All the short cuts function are only available while OSD off

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2-6-3 MAIN MENU OSD TABLE

Main Menu

Level 1 Level 2 Level 3

Auto Image Adjust

1. Background = blanking

2. The message OSD position is at the

center.

3. After auto tune, OSD shall be off

4. Only for analog mode

Contrast

1. Adjust range = 0 to 100

2. Default = 70

3. Key button definition:

[1] = Back to Main Menu or OSD off

(depend on previous status)

[2] = Change to Brightness OSD

[Up] = Increase the OSD value setting

[Dn] = Decrease the OSD value

[Up]+[Dn]: Recall to default

Contrast/Brightness

Jump to Contrast OSD directly

Brightness

1. Adjust range = 0 to 100

2. Default = 100

1. Key button definition:

[1]: OSD off

[2]: Execute the selected function

[Up]: Rolling up the slider

(When push the button on the top position, the slider

shall go down to the bottom item)

[Dn]: Rolling down the slider

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3. Key button definition:

[1] = Back to Main Menu or OSD off

(depend on previous status)

[2]: Change to Contrast OSD

[Up]: Increase the OSD value setting

[Dn]: Decrease the OSD value

[Up]+[Dn]: Recall to default

Analog

Step 1: Turn off OSD.

Step 2:

1. Target video input port = Analog

2. If signal detected from target port,

change to target port.

3. If no signal detected from target port,

keep existing input port.

Step 3: Show on Input Message OSD at

the right-top corner of screen for 1

second.

Input Select

1. Show on existing input port by red color

2. Key button definition:

[1]: Back to previous OSD status

[2]: Change to the selected input port

[Up]: Move the slider to Analog

[Dn]: Move the slider to Digital

Digital

Step 1: Turn off OSD.

Step 2:

1. Target video input port = Digital

2. If signal detected from target port,

change to target port.

3. If no signal detected from target port,

keep existing input port.

Step 3: Show on Input Message OSD at

the right-top corner of screen for 1

second.

sRGB

Change Color setting to sRGB

9300K

Change Color setting to 9300K

6500K

Change Color setting to 6500K

5400K

Change Color setting to 5400K

Color Adjust

1. Show on existing input port by red color

2. Key button definition:

[1]: Back to previous OSD status

[2]: Change to the selected color setting

[Up]: Move up the slider

[Dn]: Move down the slider

User Color

Jump to Red OSD directly

Red

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1. Adjust range = 0 to 100

2. Default = 100

3. Key button definition:

[1]: Back to Color Adjust OSD

[2]: Jump to Green OSD

[Up]: Increase the OSD value setting

[Dn]: decrease the OSD value setting

Green

1. Adjust range = 0 to 100

2. Default = 100

3. Key button definition:

[1]: Back to Color Adjust OSD

[2]: Jump to Blue OSD

[Up]: Increase the OSD value setting

[Dn]: decrease the OSD value setting

Blue

1. Adjust range = 0 to 100

2. Default = 100

3. Key button definition:

[1]: Back to Color Adjust OSD

[2]: Jump to Red OSD

[Up]: Increase the OSD value setting

[Dn]: decrease the OSD value setting

Information

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Key button definition:

[1]: Back to Main Menu OSD

Horizontal Position

1. Adjust range = 0 to 100

2. Key button definition:

[1]: Back to Manual Image Adjust OSD

[2]: Change to Vertical Position OSD

[Up]: Increase the OSD value setting

[Dn]: Decrease the OSD value

H/V Position

Jump to Horizontal Position OSD directly

Vertical Position

1. Adjust range = 0 to 100

2. Key button definition:

[1]: Back to Manual Image Adjust OSD

[2]: Change to Horizontal Position OSD

[Up]: Increase the OSD value setting

[Dn]: Decrease the OSD value

Horizontal Size

1. Adjust range = 0 to 100

2. Key button definition:

[1]: Back to Manual Image Adjust OSD

[Up]: Increase the OSD value setting

[Dn]: Decrease the OSD value

Manual Image Adjust

1. Key button definition:

[1]: Back to previous OSD status

[2]: Execute the selected function

[Up]: Rolling up the slider

(When push the button on the top

position, the slider shall go down to

the bottom item

[Dn]: Rolling down the slider

(When push the button on the bottom

position, the slider shall go down to

the top item

2. Under Digital mode, all the H./V.

Position, Horizontal Size and Fine

Tune shall be disabled with gray color.

And it should not be selected.

3. Under native mode, Sharpness shall be

disabled with gray color. And it should

not be selected.

4. When Dynamic Contrast is
selected, the right-bottom side
description will change to “[ 2 ]:
/”

Fine Tune

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1. Adjust range = 0 to 100

2. Key button definition:

[1]: Back to Manual Image Adjust OSD

[Up]: Increase the OSD value setting

[Dn]: Decrease the OSD value

Sharpness

1. Adjust range = 0 to 100

2. Key button definition:

[1]: Back to Manual Image Adjust OSD

[Up]: Increase the OSD value setting

[Dn]: Decrease the OSD value

Dynamic Contrast

Swap on and off the Dynamic Contrast

function

English

Set OSD language to English and keep in

Language Select OSD

French

Set OSD language to French and keep in

Language Select OSD

German

Set OSD language to German and keep in

Language Select OSD

Spanish

Set OSD language to Spanish and keep in

Language Select OSD

Italian

Set OSD language to Italian and keep in

Language Select OSD

Finnish

Set OSD language to Finnish and keep in

Language Select OSD

Setup Menu

1. Key button definition:

[1]: Back to Main Menu OSD

[2]: Execute the selected function

[Up]: Rolling up the slider

(When push the button on the top

position, the slider shall go down to

the bottom item)

[Dn]: Rolling down the slider

(When push the button on the

bottom position, the slider shall go

down to the top item)

2. When Resolution Notice / Input
Signal Notice / OSD Background
/ OSD Pivot is selected, the
right-bottom side description will
change to “[ 2 ]: /”

Language Select

1. Show on existing input port by red color

2. Key button definition:

[1]: Back to previous OSD status

[2]: Change to the selected language

setting

[Up]: Rolling up the slider

(When push the button on the top

position, the slider shall go down to

the bottom item

[Dn]: Rolling down the slider

(When push the button on the bottom

Russian

Set OSD language to Russian and keep in

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Language Select OSD

Japanese

Set OSD language to Japanese and keep

in Language Select OSD

Korean

Set OSD language to Korean and keep in

Language Select OSD

Simplified Chinese

Set OSD language to Simplified Chinese

and keep in Language Select OSD

position, the slider shall go down to

the top item

Traditional Chinese

Set OSD language to Traditional Chinese

and keep in Language Select OSD

Resolution Notice

Swap on and off the Resolution Notice

function

OSD H. Position

1. Adjust range = 0 to 100

2. Default = 50

3. Key button definition:

[1]: Back to Setup Menu OSD

[2]: Change to OSD V. Position OSD

[Up]: Increase the OSD value setting

(move OSD right)

[Dn]: Decrease the OSD value setting

(move OSD left)

[Up]+[Dn]: Recall to default value

OSD Position

Jump to OSD H. Position OSD directly

OSD V. Position

1. Adjust range = 0 to 100

2. Default = 50

3. Key button definition:

[1]: Back to Setup Menu OSD

[2]: Change to OSD H. Position OSD

[Up]: Increase the OSD value setting

(move OSD up)

[Dn]: Decrease the OSD value setting

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(move OSD down)

[Up]+[Dn]: Recall to default value

5

Set OSD Time Out to 5 Seconds

15

Set OSD Time Out to 15 Seconds

30

Set OSD Time Out to 30 Seconds

OSD Time Out

1. Adjust range = 5, 15, 30, 60

2. Default = 15

3. Key button definition:

[1]: Back to Setup Menu OSD

[Up]: Increase the OSD value setting

[Dn]: Decrease the OSD value setting

[Up]+[Dn]: Recall to default value

60

Set OSD Time Out to 60 Seconds

OSD Background

Swap on and off the OSD Background

Memory Recall

1. Background = blanking

2. Recall white balance to factory setting

2. Recall all the OSD setting to the default.

(exclude the R/G/B in User Color)

2. Show the message OSD position is at

the center for 3 seconds.

3. Clean FIFO timing mode buffer

4. Execute Auto Image Adjust

Note: Memory Recall should not effect on

Mute, Language, Power Lock, User Color

Settings or Input Priority

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2-6-4 OSD Lock short cuts function for the buttons

The OSD lock will be activated by pressing the front panel control buttons [1] + [▲] for 10

seconds *1. If the user then tries to access the OSD by pressing any of the buttons a message

will appear on the screen for 3 seconds showing "OSD Locked" *2. The OSD lock will be

deactivated by pressing the front panel control buttons [1] + [▲] again for 10 seconds*3.

*1 The OSD Lock message as below,

Range = 0 to 10

*2 The OSD Locked message as below,

*3 The OSD Unlock message as below,

Range = 0 to 10

*4 When the OSD is locked will lock all functions, including “Volume”, “Mute” and others.

*5 Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate “OSD

Locked” or “OSD Unlocked” for 3 seconds as below,

OSD Locked

OSD Unlocked

*6 When OSD appears on screen, the OSD Lock/Unlock short cut key will be disabled.

2-6-5 Power Lock short cuts function for the buttons

The Power lock will be activated by pressing the front panel control buttons [1] + [▼] for 10

seconds *1. Locking the power button means that the user won't be able to turn off the LCD while

the power button is locked. If the user presses the power button while it is locked, a message will

appear on the screen for 3 seconds showing "Power Button Locked" *2. It also means that with

the power button locked, the LCD would automatically turn back "On" when power is restored

after a power failure. If the power button is not in the locked mode, then power should return to

it's previous state when power is restored after a power failure. The Power lock will be

deactivated by pressing the front panel control buttons [1] + [▼] again for 10 seconds*3.

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*1 The Locking Power Button message as below,

Range = 0 to 10

*2 The Power Button Locked message as below,

*3 The Unlocking Power Button message as below,

Range = 0 to 10

*4 When the OSD is locked will lock all functions, including “Volume”, “Mute” and others.

*5 Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate

“Power Button Locked” or “Button Unlocked” for 3 seconds as below,

Power Button Locked

Power Button Unlocked

*6 When OSD appears on screen, the OSD Lock/Unlock short cut key will be disabled.

2-6-5 Input Signal Notice Actions

1. The Input Signal Notice OSD appears 1 second when power turns on or change input signal.

2. The Input Signal Notice OSD position is on the right-top side of image.

2-6-6 Resolution Notice Actions

1. Resolution Notice OSD should show on screen after changing to non-native mode for 30 sec

2. For auto input select function, it shall meet the requirement in Appendix D.

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3. The OSD should disappear after 10 sec or by pushing button [1] or [2]

4. Resolution Notice function should be disabled when push button [2] under Resolution Notice OSD

2-6-7 0-Touch™ Function Actions

1. Execute Auto Image Adjust when new mode detected, and save the settings to buffer for

further use

2. It should be reset by Memory Recall function

(Should not reset by power off, power unplug and others)

2-6-8 OSD Auto Save

The OSD shall save new settings when it is turned off by the user or when it times out. There shall not be a
separate save

2-6-9 Out of range

While non-defined timing is detected, following OSD message will shows on,

1. If the timing is over spec (Fh, Fv or dot clock), the image shall be blanking, and OSD background shall be
non-transparent.

2. If the timing is inspect but not defined, the image shall be non-blanking.

2-6-10 No signal

While no signal is detected, the following OSD message shall shows on 3 seconds then go in to power saving.

OSD Background = Non-transparent
Image = Blanking

Factory Defaults

Item Defaults Item Defaults

Contrast 70% Input Priority N/A

Brightness 100% Resolution Notice On

Color Temperature 6500K Volume 50%

Sharpness 100% Balance N/A

OSD H. Position 50% Treble N/A

OSD V. Position 50% Bass N/A

OSD Time Out 15 720x400 / 640x400 720x400

OSD Background On DCR Enable

2-7 AUDIO INTERFACE (SPEAKER SPECIFICATION)

No Audio function

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2-8 TFT LCD PANEL

Panel Source Identify

The panel code (refer to segment 2-16) should be shown on following position,

(1) The lower right side of ID label. (see Figure 2)

(2) The lower right side of UPC label. (see Figure 3)

(3) The F/W version sticker or silkscreen on main board.

Panel Characteristics :

1st Source Panel

Model number INL MT220WW01 V0

Type Active Matrix TFT, TN technology

Active Size 22” Wide (473.76mm x 296.1mm)

Pixel Arrangement RGB Vertical Stripe

Pixel Pitch 0.282 mm

Glass Treatment Anti-Glare, Hard coating (3H)

# of Backlights 4 CCFL

Backlight Life 40000 Hrs (Min)

300 cd/m2 (Typ after 30 minute warm up) Luminance (Center) –

CT = 6500K,

Contrast/ Brightness = Max

250cd/m2 (Min after 30 minute warm up)

Brightness Uniformity (13 points) 80 % (Typ) / 75 % (Min)

Contrast Ratio 1000 :1 (Typ)

700:1 (Min)

Color Depth 16.7 million colors (6+2 bit Hi FRC panel)

Horizontal Viewing Angle 170 degrees (Typ) / 150 degrees (Min) @ CR>10

Vertical Viewing Angle 160 degrees (Typ) / 140 degrees (Min) @ CR>10

Response Time

On-Off

10%-90% @ Ta=25°C 5ms (Typ) / 10ms (Max)

Mercury 3.0 mg per lamp

Panel Defects Please see Panel Quality Specifications.

*Over 50% units of shipment shall be equal or better than the Typical value above.

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2nd Source Panel

Model number AUO M220EW01 V0

Type Active Matrix TFT, TN technology

Active Size 22” Wide (473.76mm x 296.1mm)

Pixel Arrangement RGB Vertical Stripe

Pixel Pitch 0.282 mm

Glass Treatment Anti-Glare, Hard coating (3H)

# of Backlights 4 CCFL

Backlight Life 40000 Hrs (Min)

300 cd/m2 (Typ after 30 minute warm up) Luminance (Center) –

CT = 6500K,

Contrast/ Brightness = Max

250cd/m2 (Min after 30 minute warm up)

Brightness Uniformity (13 points) 80 % (Typ) / 75 % (Min)

Contrast Ratio 1000 :1 (Typ)

800:1 (Min)

Color Depth 16.7 million colors (6+2 bit Hi FRC panel)

Horizontal Viewing Angle 170 degrees (Typ) / 160 degrees (Min) @ CR>10

Vertical Viewing Angle 160 degrees (Typ) / 150 degrees (Min) @ CR>10

Response Time

On-Off

10%-90% @ Ta=25°C 5ms (Typ) / 8ms (Max)

Mercury 3.0 mg per lamp

Panel Defects Please see Panel Quality Specifications.

*Over 50% units of shipment shall be equal or better than the Typical value above.

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3rd Source Panel

Model number INL MT220WW01 V2

Type Active Matrix TFT, TN technology

Active Size 22” Wide (473.76mm x 296.1mm)

Pixel Arrangement RGB Vertical Stripe

Pixel Pitch 0.282 mm

Glass Treatment Anti-Glare, Hard coating (3H)

# of Backlights 4 CCFL

Backlight Life 40000 Hrs (Min)

300 cd/m2 (Typ after 30 minute warm up) Luminance (Center) –

CT = 6500K,

Contrast/ Brightness = Max

250cd/m2 (Min after 30 minute warm up)

Brightness Uniformity (13 points) 80 % (Typ) / 75 % (Min)

Contrast Ratio 1000 :1 (Typ)

700:1 (Min)

Color Depth 16.7 million colors (6+2 bit Hi FRC panel)

Horizontal Viewing Angle 170 degrees (Typ) / 150 degrees (Min) @ CR>10

Vertical Viewing Angle 160 degrees (Typ) / 140 degrees (Min) @ CR>10

Response Time

On-Off

10%-90% @ Ta=25°C 5ms (Typ) / 10ms (Max)

Mercury 3.0 mg per lamp

Panel Defects Please see Panel Quality Specifications.

*Over 50% units of shipment shall be equal or better than the Typical value above.

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EDID data

Time: 11:23:00

Date: Tue Jun 05, 2007

______________________________________________________________________

______________________________________________________________________

VIEWSONIC CORPORATION

EDID Version # 1, Revision # 3

DDCTest For: ViewSonic VA2226w

______________________________________________________________________

______________________________________________________________________

EDID Block 0, Bytes 0-127

128 BYTES OF EDID CODE:

0 1 2 3 4 5 6 7 8 9

________________________________________

0 | 00 FF FF FF FF FF FF 00 5A 63

10 | 20 51 01 01 01 01 01 11 01 03

20 | 80 31 1D 78 2E DC 55 A3 59 48

30 | 9E 24 11 50 54 BF EF 80 B3 00

40 | A9 40 81 80 81 40 71 4F 01 01

50 | 01 01 01 01 21 39 90 30 62 1A

60 | 27 40 68 B0 36 00 EF 23 11 00

70 | 00 1C 00 00 00 FF 00 51 51 4B

80 | 30 37 30 31 30 30 30 30 31 0A

90 | 00 00 00 FD 00 32 4B 1E 52 11

100 | 00 0A 20 20 20 20 20 20 00 00

110 | 00 FC 00 56 41 32 32 32 36 77

120 | 0A 20 20 20 20 20 00 8E

______________________________________________________________________

(08-09) ID Manufacturer Name ________________ = VSC

(11-10) Product ID Code _____________________ = 5120

(12-15) Last 5 Digits of Serial Number ______ = Not Used

(16) Week of Manufacture _________________ = 01

(17) Year of Manufacture _________________ = 2007

(10-17) Complete Serial Number ______________ = See Descriptor Block

(18) EDID Version Number _________________ = 1

(19) EDID Revision Number ________________ = 3

(20) VIDEO INPUT DEFINITION:

Digital Signal

Non - VESA DFP 1.x Compatible

(21) Maximum Horizontal Image Size ________________ = 490 mm

(22) Maximum Vertical Image Size __________________ = 290 mm

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(23) Display Gamma ________________________________ = 2.20

(24) Power Management and Supported Feature(s):

Active Off/Very Low Power, Standard Default Color Space,

Preferred Timing Mode

Display Type = R/G/B Color

(25-34) CHROMA INFO:

Red X - 0.640 Green X - 0.284 Blue X - 0.142 White X - 0.313

Red Y - 0.349 Green Y - 0.617 Blue Y - 0.067 White Y - 0.329

(35) ESTABLISHED TIMING I:

720 X 400 @ 70Hz (IBM,VGA)

640 X 480 @ 60Hz (IBM,VGA)

640 X 480 @ 67Hz (Apple,Mac II)

640 X 480 @ 72Hz (VESA)

640 X 480 @ 75Hz (VESA)

800 X 600 @ 56Hz (VESA)

800 X 600 @ 60Hz (VESA)

(36) ESTABLISHED TIMING II:

800 X 600 @ 72Hz (VESA)

800 X 600 @ 75Hz (VESA)

832 X 624 @ 75Hz (Apple,Mac II)

1024 X 768 @ 60Hz (VESA)

1024 X 768 @ 70Hz (VESA)

1024 X 768 @ 75Hz (VESA)

1280 X 1024 @ 75Hz (VESA)

(37) Manufacturer's Reserved Timing:

1152 X 870 @ 75Hz (Apple,Mac II)

(38-53) Standard Timing Identification:

1680 X 1050 @60Hz

1600 X 1200 @60Hz

1280 X 1024 @60Hz

1280 X 960 @60Hz

1152 X 864 @75Hz

Not Used

Not Used

Not Used

______________________________________________________________________

(54-71) Detailed Timing / Descriptor Block 1:

1680x1050 Pixel Clock: 146.25 MHz

______________________________________________________________________

Horizontal Image Size: 495 mm Vertical Image Size: 291 mm

Refreshed Mode: Non-Interlaced Normal Display - No Stereo

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Horizontal:

Active Time: 1680 pixels Blanking Time: 560 pixels

Sync Offset: 104 pixels Sync Pulse Width: 176 pixels

Border: 0 pixels Frequency: 65.29 KHz

Vertical:

Active Time: 1050 lines Blanking Time: 39 lines

Sync Offset: 3 lines Sync Pulse Width: 6 lines

Border: 0 lines Frequency: 59.95 Hz

Digital Separate, Horizontal Polarity (-) Vertical Polarity (+)

______________________________________________________________________

(72-89) Detailed Timing / Descriptor Block 2:

Monitor Serial Number:

QQK070100001

______________________________________________________________________

(90-107) Detailed Timing / Descriptor Block 3:

Monitor Range Limits:

Min Vertical Freq - 50 Hz

Max Vertical Freq - 75 Hz

Min Horiz. Freq - 30 KHz

Max Horiz. Freq - 82 KHz

Pixel Clock - 170 MHz

Secondary GTF - Not Supported

______________________________________________________________________

(108-125) Detailed Timing / Descriptor Block 4:

Monitor Name:

VA2226w

(126) No Extension EDID Block(s)

(127) CheckSum OK

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3. Front Panel Function Control Description

Adjusting the Screen Image

Main Menu

with OSD controls

Front Control Panel

shown below in detail

Scrolls through
menu options and
adjusts the
displayed control.

Also a shortcut to
display the
Contrast
adjustment control
screen.

Displays the control screen

for the highlighted control.

Also toggles between two

controls on some screens.

Also a shortcut to Auto

Image Adjust.

Power light
Blue = ON
Orange = Power Saving

Standby Power
On/Off

Displays the

Main Menu or

exits the

control screen

and saves

adjustments.

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Do the following to adjust the display setting:

1. To display the Main Menu, press button [1].

NOTE: All OSD menus and adjustment screens disappear automatically after about 15

seconds. This is adjustable through the OSD timeout setting in the setup menu.

2. To select a control to adjust, pressSorTto scroll up or down in the Main Menu.

3. After the desired control is selected, press button [2]. A control screen like the one shown

below appears.

4. To adjust the control, press the up S or down T buttons.

5. To save the adjustments and exit the menu, press button [1] twice.

The following tips may help you optimize your display:

• Adjust the computer's graphics card so that it outputs a 1680 x 1050 @ 60Hz video signal to
the LCD display. (Look for instructions on “changing the refresh rate” in the graphics card's
user guide.)

• If necessary, make small adjustments using H. POSITION and V. POSITION until the
screen image is completely visible. (The black border around the edge of the screen should
barely touch the illuminated “active area” of the LCD display.)

The line at the bottom of the screen shows
the current functions of buttons 1 and 2:
Exit or select the Brightness control.

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Main Menu Controls

Adjust the menu items shown below by using the up S and down T buttons.

Control Explanation

Auto Image Adjust automatically sizes, centers, and fine tunes the video signal
to eliminate waviness and distortion. Press the [2] button to obtain a sharper
image.

NOTE: Auto Image Adjust works with most common video cards. If this
function does not work on your LCD display, then lower the video refresh rate
to 60 Hz and set the resolution to its pre-set value.

Contrast adjusts the difference between the image background (black level)
and the foreground (white level).

Brightness adjusts background black level of the screen image.

Input Select toggles between inputs if you have more than one computer

connected to the VA2226w.

Color Adjust provides several color adjustment modes, including preset color
temperatures and a User Color mode which allows independent adjustment of
red (R), green (G), and blue (B). The factory setting for this product is 6500K
(6500 Kelvin).

sRGB-This is quickly becoming the industry standard for color management,
with support being included in many of the latest applications. Enabling this
setting allows the LCD display to more accurately display colors the way they
were originally intended. Enabling the sRGB setting will cause the Contrast and
Brightness adjustments to be disabled.

9300K-Adds blue to the screen image for cooler white (used in most office
settings with fluorescent lighting).

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Control Explanation

6500K-Adds red to the screen image for warmer white and richer red.

5400K-Adds green to the screen image for a darker color.

User Color Individual adjustments for red (R), green (G), and blue (B).

1. To select color (R, G or B) press button [2].

2. To adjust selected color, pressSandT.

Important: If you select RECALL from the Main Menu when the product is

set to a Preset Timing Mode, colors return to the 6500K factory preset.

Information displays the timing mode (video signal input) coming from the
graphics card in the computer, the LCD model number, the serial number, and
the ViewSonic® website URL. See your graphics card’s user guide for
instructions on changing the resolution and refresh rate (vertical frequency).
NOTE: VESA 1680 x 1050 @ 60Hz (recommended) means that the resolution
is 1680 x 1050 and the refresh rate is 60 Hertz.

Manual Image Adjust displays the Manual Image Adjust menu.

H./V. Position (Horizontal/Vertical Position) moves the screen image left or

right and up or down.

H. Size (Horizontal Size) adjusts the width of the screen image.

Fine Tune sharpens the focus by aligning text and/or graphics with pixel

boundaries.

NOTE: Try Auto Image Adjust first.

Sharpness adjusts the clarity and focus of the screen image.

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Control Explanation

Setup Menu displays the menu shown below:

Language Select allows the user to choose the language used in the menus and

control screens.

Resolution Notice advises the optimal resolution to use.

OSD Position allows the user to move the OSD menus and control screens.

OSD Timeout sets the length of time the OSD screen is displayed. For example,

with a “15 second” setting, if a control is not pushed within 15 seconds, the
display screen disappears.

OSD Background allows the user to turn the OSD background On or Off.

Memory Recall returns the adjustments back to factory settings if the display is

operating in a factory Preset Timing Mode listed in the Specifications of this
manual.
Exception: This control does not affect changes made with the User Color
control, Language Select or Power Lock setting.

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4. Circuit Description

1. Switching Mode Power Supply

1.1 AC Current Input Circuit

P801 is a connector for connecting AC Power. F801 is a fuse to protect all the circuit. AC

input voltage is from 90V to 264V. R801 and R802 joined between two inputting main circuit

to prevent man from shock. L801 is used to clear up low frequency wave. C801 and C802

are used to discharge the waves that L801 produced. High frequency waves are damped by

C801 and C802. D801 is a rectifier which composed of 4 build-in diodes, it inverts AC to

DC.

1.2 High Voltage to Low Voltage Control Circuit

C804 is used to smooth the waveform from rectifier. IC802 is a highly integrated PWM

controller, which control the power MOSFET Q804. When rectified DC high voltage is

applied to the DRAIN pin during start-up, the MOSFET is off initially, and the capacitor C807

be charged through D802,R803 and the HV pin of IC802,when the voltage VCC reaches

the threshold level 12.8V,IC 802 start up and create a PWM signal to control the power

MOSFET, then energy is transferred to secondary terminal through the transformer

T801,the auxiliary voltage 12V and the output voltage 5V/14V be created ,the auxiliary

voltage supply a continue current to IC802,the level of output voltage is feedback to FB pin

of IC802 through R823,R824,R822,IC803 and IC803 witch control the duty of the PWM

signal, then all the convert circuit go to a stable operating station.

R805 R806 R835 ZD801 ZD806 and Q806 formed a under input voltage protection

circuit , only the input AC voltage over the threshold level approximately 63V AC, the switch

Q801 can be on and then the auxiliary voltage can supply a continue current to

IC802;R808,R807,R836,R812,R815,R836,D806 and Q805 formed a over line current

protection circuit witch limited the input power under approximately 63W. ZD805 will be on

when the output voltage is too high or the feedback circuit open, the current will drive

transistor Q805 open through R830,D814 and made IC802 off the PWM waveform; the high

voltage spike created by transformer’s primary winding during the transistor turn off will be

consumed through D804 R813 R814 and C806, This will prevent MOSFET which built-in

IC802 from being damaged under large current impulse and voltage spike.

1.3 DC_5V and DC_14V Output Circuit

For DC 5V, D808 is used to rectify the inducted current. R817 and C815 are used to store

energy when current is reversed. The parts including C824,C818,C822 and L803 are used

to smooth the current waves.

For DC 14V, D807 is used to rectify the inducted current. R816 and C814 are used to

store energy when current is reversed. The parts including C816,C817,C819 and L802 are

used to smooth the current waves.

1.4 Feedback and OVP Protect Circuit

Pin R of IC803 is supplied 2.5V stable voltage. It is connected to 5V and 14V output through

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R823, R824 and R822. R823 R824 and R822 are output sampling resistor. When the

sampling voltage more than 2.5V or less than 2.5V, feedback current of IC802 will change,

this can change the voltage from transformer T801.

For output OVP, ZD803,ZD804 and ZD805 are zener diode, when the voltage add to the

zener up to their’s rating voltage 5.6V, 3.9V or 20V, the zener’s leakage current cause R828

voltage become up to 0.7V, Q803 is triggered and OVP starts. The collector current of Q803

is used to make build-in diode light. FB Current of IC802 will be changed; it can change the

output voltage from T801.

2. Inverter Circuit

2.1 Low voltage to high voltage circuit

14VDC provides the power for IC501; the control signals Brightness and ON/OFF come

from I/F board. ON/OFF signal connect to pin8 of IC501 and makes IC501 enable. Brightness

signal connect to pin7 of IC501 and regulates the panel brightness, R524, R529, C505 make up

a network of delaying time circuit and R528, R523, R524 make up a divided voltage network,

C504 is used to dump noise. The operation frequency is determined by the external Resistor

R522 and capacitor C529 connected to pin5 of IC501. BURST MODE regulated dimming

frequency is determined by the external resistor R527 and capacitor C506 connected to pin6 of

IC501. C502 is used for soft start and compensation, C502, C528 are used for dump noise.

The output drives, include NDR4, NDRV2, PDRV3, PDRV1 (pins1, 3, 15, 16 respectively)

output square pulses to drive MOSFET U501, U502, and each of U501, U502 is consist of a N

channel MOSFET and a P channel MOSFET. U501 and U502 work as full-bridge topology, it is

high efficient, zero voltage switching.

During start up, VSEN (pin9) senses the voltage at the transformer secondary. When VSEN

reaches 3.0V, the output voltage is regulated. If no current is sensed approximately 1.5 seconds

IC501 shunt off.

The current flowing through CCFL is sensed and regulated through sense resistor R509,

R511. The feedback voltage through R506, R507, C508 connected to Pin11 (ISEN), then

compared with a reference voltage (1.5V) via a current amplifier, resulting in PWM drive outputs

to full-bridge switches.

2.2 Protection circuit

Over Voltage Protection: R501and R502 are connected in high voltage output connector, the

divided AC voltage is inverted DC voltage through D508, R505 and C507are used to rectify wave

& dump noise. Then the voltage signal reaches Pin9 VSEN of IC501, when the voltage changes,

build-in PWM of IC501 will adjust output voltage.

Open Lamp Protection: In normal operation, the resistors R510, R511, R512, R509 are

sensed a high level AC voltage, the AC signal IS1 invert DC voltage through D509, R515, C533,

and the high level DC voltage reaches the gate pin of Q502, similarly, the gate pin of Q503, Q504,

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Q505 has high level DC voltage. So the gate pin of Q501 has a low level voltage, and the IC501

is normal operation. Once one of signal OP1,OP2,OP3,OP4 is low, the voltages of Q501 gate

pin is high level, and make the voltage of ISEN low level, the IC501 will be shunt down.

3. I/F Circuit

3.1 Power Supply

- +5V is converted to 3V3(U103) and 3V3 is converted to 1V8 by special circuit.

- +5V is fed to LVDS panel via Q101.

3.2 Control Signals Output

- on_BACKLIGHT signal from TSUM56AK pin20 is reversed as ON/OFF signal via Q108 to

control backlight on/off. The backlight keeps on while ON/OFF signal is low level .

- adj_BACKLIGHT signal from TSUM56AK pin21 controls backlight brightness.

3.3 VGA Input

- Red,Green,Blue input signals from CN101 #1,#2,#3 enter into TSUM56AK analog input

terminals #59,#56,#54 via C101,C102,C103 and then are processed.BAV99

( D102/D104/D106) are ESD protector to prevent IC from ESD.R101/102/103 and

R105/106/107 are matching resistance.

- Signal DDC_CLK (series clock) from CN102#15 passes through ZD104 for over voltage

protection, and then goes into EDID EEPROM IC U101 #6.

- Signal DDC_DAT (series data) from CN102#12 passes through ZD105 for over voltage

protection, and then goes into EDID EEPROM IC U101 #5.

- Signal TTL vertical sync. (Vsync) from CN102 #14 passes through ZD101 (for over voltage

protection),R115,R117 and C112 and then goes into IC TSUM56AK#64

- Signal TTL horizontal sync. (Hsync) from CN102 #13 passes through ZD103(for over

voltage protection),FB117,R114,C116,R116 and then goes into IC TSUM56AK#63.

- CN101 #5 is defined as VGA cable detect pin, this detector realize via R111,R112 and

U105 (TSUM56AK) #69, When cable plug in, DET_VGA is low level. D109 is ESD

protector.

- U101VCC is supplied by PC5V from CN101 #9 or by VCC3.3.

- U101 is an EEPROM IC,VGA EDID data is saved in it.

3.4 Scalar & MCU

- U105 (TSUM56AK) is a scalar IC with MCU.

- U105 #105~#114 and #118~#127output 8 bit LVDS digital data to panel control circuit

through CN105.

- U106 is a flash memory IC for program.

- U107 is a EEPROM IC.

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3. Support Timing Table

This unit can support FH= 31.5~84 KHz, Fv=56~86Hz and WXGA+ display modes as
below:

Resolution

H-Freq.

(kHz)

V-Freq.

(Hz)

Dot Clock

(MHz)

Mode

31.5 60.0 25.175

37.9 72.0 31.500

640 x 480

37.5 75.0 31.500

35.1 56.0 36.000

37.9 60.0 40.000

48.1 72.0 50.000

800 x 600

46.9 75.0 49.500

48.4 60.0 65.000

56.5 70.0 75.000

1024 x 768

60.0 75.0 78.750

1152 x 864 67.5 75.0 108.000

1280 x 960 60.0 60.0 108.000

64.0 60.0 108.000

1280 x 1024

80.0 75.0 135.000

65.3 60.0 121.750

1400 x 1050

82.5 75.0 136.000

59.9 60.0 106.500

1440 x 900

75.0 75.0 136.750

VESA Standard

720 x 400 31.5 70.0 28.300 US Text

640 x 480 35.0 66.7 30.200

832 x 624 49.7 74.6 57.300

1024 x 768 60.2 75.0 80.000

1152 x 870 68.7 75.0 100.000

64.0 60.0 108.000

1280 x 1024

80.0 75.0 135.000

Power Macintosh

series

48.3 60.0 64.130

53.6 66.0 70.400

1024 x 768

56.6 70.0 74.250

61.8 66.0 94.880

1152 x 900

71.8 76.2 108.230

71.7 67.2 117.010

1280 x 1024

81.1 76.0 134.990

Sun Ultra series

49.7

60.0

1280 x 800

58.4 70.0

Industrial Standard

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60.2 72.0

62.7 75.0

Note: 1. Non-interlace signals only (An interlace signal cannot be display)

2. Please refer to F/W specification for more detail

3. Each frequency of Power Macintosh and Sun Ultra is a reference value

4. D-SUB Connector Pin Assignment

Pin Symbol Pin Symbol Pin Symbol

1 Red+ 6 Red_GND 11 GND

2 Green+ 7 Green_GND 12 DDC_DAT

3 Blue+ 8 Blue_GND 13 Hsync

4 NC 9 5V_VGA 14 Vsync

5 Cable

Detect

10 GND 15 DDC_CLK

5. CN103 (LVDS interface)

Pin No Symbol Description Pin No Symbol Description

1 RxO0-

LVDS Differential data input Channel
0(-)

16 RxE1+

LVDS Differential data input Channel
1(+)

2 RxO0+

LVDS Differential data input Channel
0(+)

17 GND Ground

3 RxO1-

LVDS Differential data input Channel
1(-)

18 RxE2-

LVDS Differential data input Channel
2(-)

4 RxO1+

LVDS Differential data input Channel
1(+)

19 RxE2+

LVDS Differential data input Channel
2(+)

5 RxO2-

LVDS Differential data input Channel
2(-)

20 RxEC- LVDS Differential Clock input (-)

6 RxO2+

LVDS Differential data input Channel
2(+)

21 RxEC+ LVDS Differential Clock input (+)

7 GND Ground 22 RxE3-

LVDS Differential data input Channel
3(-)

8 RxOC- LVDS Differential Clock input (-) 23 RxE3+

LVDS Differential data input Channel
3(+)

9 RxOC+ LVDS Differential Clock input (+) 24 GND Ground

10 RxO3-

LVDS Differential data input Channel
3(-)

25 GND Ground

11 RxO3+

LVDS Differential data input Channel
3(+)

26 GND NC

12 RxE0-

LVDS Differential data input Channel
0(-)

27 GND Ground

13 RxE0+

LVDS Differential data input Channel
0(+)

28 VCC Power supply (+5.0V)

14 GND Ground 29 VCC Power supply (+5.0V)

15 RxE1-

LVDS Differential data input Channel
1(-)

30 VCC Power supply (+5.0V)

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6 Key Parts Pin Assignments

6.1 Panel general specifications

6.1.1 General Specifications

a. M220EW01 V0 (AUO)

Supplier AUO

Model name M220EW01 V0
Display Area 473.76(H) X 296.1(V

)

Pixel Pitch 0.282(H) X 0.282(V

)

Display Colors 16.7M
Number of Pixel 1680xR.G.B.x1050
Brightness 250cd/m2 (Min.), 300cd/m2 (Typical)

Contrast Ratio Min: 800:1, Typical: 1000:1

Viewing Angle Hor: 170°, Ver: 160° (Typical, CR>10)

Display Mode Normally White
Frame rate 60Hz
Response Time 5 ms(Typical), 8ms (Max.)

Surface

Hard coating (3H),Non Glare

Lamp 4 CCFL

Outline

493.7(W) X 320.1(H)x16.5 (D)

Brightness

80% (typ) / 75 % (min)

b. MT220W W01 V.0(INL)

Supplier INL

Model name MT220W W01 V.0
Display Area 473.76(H) X 296.1(V

)

Pixel Pitch 0.282(H) X 0.282(V

)

Display Colors 16.7M
Number of Pixel 1680xR.G.B.x1050
Brightness 250cd/m2 (Min.), 300cd/m2 (Typical)

Contrast Ratio Min: 600:1, Typical: 1000:1

Viewing Angle Hor: 160°, Ver: 160° (Typical, CR>10)

Display Mode Normally White
Frame rate 60Hz
Response Time 5 ms (Typical), 10ms (Max.)

Surface

Hard coating (3H),AG(Haze 25%)

Lamp 4 CCFL

Outline

493.7(W) X 320.1(H)x16.5 (D)

Brightness

80% (typ) / 75 % (min)

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c. CLAA220WA01 (CPT)

Supplier CPT

Model name CLAA220WA01
Display Area 464.94(H) X 290.5875(V

)

Pixel Pitch 0.27675 (H) X 0.27675(V

)

Display Colors 16.7M(6bit+Hi-FRC

)

Number of Pixel 1680xR.G.B.x1050
Brightness 250cd/m2 (Min.), 300cd/m2 (Typical)

Contrast Ratio Min: 700:1, Typical: 1000:1

Viewing Angle Hor: 170°, Ver: 160° (Typical, CR>10)

Display Mode Normally White
Frame rate 60Hz
Response Time 5 ms (Typical), 8ms (Max.)

Surface

Hard coating(3H),AG(Haze 25%)

Lamp 4 CCFL

Outline

493.7(W) X 320.1(H)x16.5

Brightness

75 % (min)

6.2 Optical characteristic of LCD panel

6.2.1 AUO(

M220EW01 V0

):

Item Unit Conditions Min. Typ. Max. Remark

Viewing Angle [degree] Horizontal

CR >= 10

160 170 - -

[degree] Vertical

CR >= 10

150 160 - -

Contrast ratio Normal Direction 800 1000
Response Time [msec] Rising Time 3.6 5.5
[msec] Falling Time - 1.4 2.3
[msec] Rising + Falling - 5 8
Color / Chromaticity Red x 0.646
Coordinates (CIE) Red y 0.339
Green x 0.290
Green y

-0.03

0.603

+0.03

Blue x 0.145
Blue y 0.065

White x 0.313 Color Coordinates (CIE) White
White y

-0.03

0.329

+0.03

Luminance Uniformity [%] 9 points

measurement

75 80 -

White Luminance at
CCFL 7.0mA(center point)

[cd/m2] 250 300 -

 The test methods for the above items’ definition please refer to the specification of M220EW01 V0 (AUO).

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6.2.2 InnoLux Panel (MT220W W01 V.0):

Item Unit Conditions Min. Typ. Max. Remark

Viewing Angle [degree] Horizontal

CR >= 10

140 160 - -

[degree] Vertical

CR >= 10

140 160 - -

Contrast ratio Normal Direction 600 1000
Response Time [msec] Rising Time 1.5 3
[msec] Falling Time - 3.5 7
[msec] Rising + Falling - 5 10
Color / Chromaticity Red x 0.640
Coordinates (CIE) Red y 0.349
Green x 0.284
Green y

-0.03

0.617

+0.03

Blue x 0.142
Blue y 0.067

White x 0.313 Color Coordinates (CIE) White
White y

-0.03

0.329

+0.03

Luminance Uniformity [%] 9 points

measurement

75 80 -

White Luminance at
CCFL 7.0mA(center point)

[cd/m2] 250 300 -

 The test methods for the above items’ definition, please refer to the specification of InnoLux Panel (MT220W

W01 V.0)

6.2.3 CPT Panel (CLAA220WA01):

Item Unit Conditions Min. Typ. Max. Remark

Viewing Angle [degree] Horizontal

CR >= 10

150 170 - -

[degree] Vertical

CR >= 10

140 160 - -

Contrast ratio Normal Direction 700 1000
Response Time [msec] Rising Time -- --
[msec] Falling Time - -- --
[msec] Rising + Falling - 5 8
Color / Chromaticity Red x 0.651
Coordinates (CIE) Red y 0.330
Green x 0.267
Green y

-0.03

0.630

+0.03

Blue x 0.145
Blue y 0.080

White x 0.313 Color Coordinates (CIE) White
White y

-0.03

0.329

+0.03

Luminance Uniformity [%] 9 points

measurement

75 -

White Luminance at
CCFL 7.0mA(center point)

[cd/m2] 250 300 -

 The test methods for the above items’ definition, please refer to the specification of CPT (CLAA220WA01)

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6.3 U701 (Audio amplifier)TDA7496L

SYMBOL PIN DESCRIPTION

GND 1 Ground

GND 2 Ground

GND 3 Ground

Signal L 4 Signal input left

VAR out 5 VAR output

VOLUME 6 DC volume control

VAR out 7 VAR output

NC 8 Not connected

Signal R 9 Signal input right

SVR 10 Supply voltage rejection

STBY 11 Standby

MUTE 12 Sound mute

GND 13 Ground

OUTR 14 Audio output right

VS 15 Power supply

VS 16 Power supply

OUTL 17 Audio output left

GND 18 Ground

GND 19 Ground

GND 20 Ground

6.4 IC501 (OZ9910G, CCFL Inverter controller IC)

Pin Symbol I/O Description

1 NDRV2 O Bottom MOSFET gate drive output in dual forward converter

2 PGND High-current power ground

3 NDRV1 O Bottom MOSFET gate drive output in dual forward converter

4 GNDA Low-current signal ground

5 CT I Timing capacitor of high frequency oscillator

6 LCT I Timing capacitor to set LPWM frequency

7 DIM I Control command input -- DC

8 ENA I Enable input

9 VSEN I Voltage sense feedback

10 CMP_SST I Soft start and loop compensation capacitor

11 ISEN I Current sense feedback

12 V5000 O Reference voltage output

13 VIN I Supply voltage for IC

14 HSB I High side driver buffer output

15 PDRV1 O Top MOSFET gate drive output in dual forward converter

16 PDRV2 O Top MOSFET gate drive output in dual forward converter

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6.5 IC802 (NCP1203)

Pin No. Pin name Function Pin Description

1 Adj

A

djust he skipping peak

current

This pin lets you adjust the level at which the cycle

skipping process takes place. Shorting this pin to

ground,permanently disables the skip cycle feature.

2 FB

Sets the peak current

setpoint

By connecting an optocoupler to this pin,the pead

current setpoints is adjusted accordingly to the

ouput power demand.Skip cycle occurs when FB

falls below Vpin1.

3 CS current sense input

This pin senses the primary current and routes it to

the internal comparator via and L.E.B.

4 Gnd The IC ground

5 Drv Driving pulses The driver's output to an external MOSFET.

6 Vcc Supplies the IC This pin is connected to an External bulk capacitor

7 Nc

This unconnected pin ensures adepuate creepage

distance.

8 HV

Ensure a clean and

lossless start-up

sequence

Connected to the high-voltage rail, this pin injects a

constant current into the Vcc capacitor during the

start-up sequence

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5. Adjustment Procedure

1.1 Control buttons on the Back bezel

• 3 buttons at the rear side of monitor

• “UP”

 Activate the Volume control menu, and increase the value (optional)
 View the previous function in the main OSD menu
 Increase the value of specific function which has been selected

• “MENU/POWER”

 Turn on the monitor
 Activate the OSD control menu
 Select the specific function
 Turn off the monitor by pressing the button for 3 seconds

• “DOWN”

 Activate the Volume control menu, and decrease the value (optional)
 View the next function in the main OSD menu
 Decrease the value of the specific function which has been selected

• “UP” and “DOWN”

 Activate the Auto Adjustment function to optimize the picture

performance automatically

1.2 Hot Key Operation

FUNCTION

DESCRIPTION

Power status

Fact

ory

Mode

● ● OFF Enter Factory Mode

Auto ● ● ON

Activate Auto Adjustment
function

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2.OSD Control

The on-screen display (OSD) shall be an easy to use icon based menu through keypad OSD
buttons or remote control unit. The unit shall leave the factory with all OSD controls set to their
default values.

y Main Menu

Level 1 Level 2 Level 3 Default

EXIT
AUTO ADJUSTMENT
CONTRAST 70%
BRIGHTNESS 100%

EXIT
ENGLISH
KOREAN
GERMAN
FRENCH
ITALIAN
SPANISH
JAPANESE
SIMPLIFIED
CHINESE
TRADITIONAL
CHINESE

OSD MENU
LANGUAGE

RUSSIAN

ENGLISH

EXIT
STANDARD

POWER SAVING
MODE

ADVANCED

STANDARD

EXIT
AUTO COLOR

EXIT USER
USER/RED 100%
USER/GREEN 100%
USER/BLUE 100%
sRGB
9300K
6500K

COLOR
TEMPERATURE

5400K

6500K

EXIT
RIGHT
CENTER

OSD MENU
POSITION

LEFT

CENTER

PHASE By Timing
HORIZONTAL
POSITION

50%

OTHERS

VERTICAL POSITION 50%
INFORMATION BY TIMING
RECALL

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3. Factory Mode Introduction

When signal is input, press “power key” to turn off the monitor. Press “-” and “Power” together to
turn on the monitor. After power on, press “Power” to call out Main Menu, then press “-“for select
the “F” item, then press “power/menu”, you can go into Factory mode.

EXIT:

Escape from Factory menu.

PANEL:

Display panel information.

AUTO COLOR:

Automatically calibrate chip ADC parameter by using chip internal DAC.

GAIN:

ADC gain value

OFFSET:

ADC offset value

SPAN and STEP:

Spread spectrum value.

BRI:

Brightness value

CON:

Contrast value

9300K:

Set color temperature 9300K

6500K:

Set color temperature 6500K

USER:

Set user preferred color temperature

RS232:

F/W RS232 debug on or off

BANK, ADDR, VALUE, HTOTAL: F/W adjust the scaler register and htotal to panel for better
performance.

TIME:

The time of backlight used.

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4. Burn-in pattern

Enter the factory mode, Plug out VGA, Burn-in pattern will self generate automatically. You

can not escape from Burn-in pattern until plug in VGA Cable or press the Menu/Power key,.

5. Auto Color Balance (Automatically calibrate chip ADC parameter by using chip

internal DAC.)

If it is a new-built set and it is first time to do the “auto color”, please confirm the following

steps:

-Connect the VGA cable with the standard video pattern generator and display 32-gray

pattern on the monitor.

- Press “Power” to power off the monitor.

- Enter the Factory Mode.

- Then press the “Menu/POWER” to execute Auto Color item.

- After the “Auto Color” process finished, please press “Power” to restart monitor.

6. EDID (Rewrite EDID data to EEPROM)

If we need to rewrite the EEPROM data, please confirm the following steps.

1. Plug in VGA Cable; we can rewrite the EDID data to EEPROM by using “EDID Rewrite”

program.

2. If the “EDID Rewrite” process finished, please pull out AC power cable or press power key

to restart

7. Upload firmware to MCU via VGA Cable

7.1 Connect ISP board between monitor and PC as below configuration.

7.2. Press the “connect” button in ISP.exe, and select the device type, which is used in

this monitor. Choose the corresponding firmware version, and load to MCU.

7.3. After finish, please plug out power cable and re-start monitor again.

Insert to Parallel

Port on PC

ISP Board

LCD Monitor

D-Sub

Parallel Port

D-SUB

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8. after repair, to ensure the quality you should do the following test and adjustment

Item Content Equipment

Test OS D

function

1. Signal is set as 1440×900@60Hz under General-1

2.Checking whether each single function key and compound function key

can be worked.

Chroma

Signal Generator

Contrast Check 1. Set input mode to 1440×900@60Hz

2. Set Pattern to 32 gray shades

3. Set contrast to the max. The brightest 5~8 shades brightness

cannot be distinguished.

Chroma

Signal Generator

Color

Temperature

1. Do “Auto color Balance” at 1440×900@60Hz, 32gray

shades

2. Measure color temperature, check it complies with the

following temperature :

6500K x = 0.313 +/- 0.03, y = 0.329+/-0.03

9300K x = 0.283 +/- 0.03, y = 0.298+/-0.03

Chroma Signal

Generator and color

analyzer

Modes switching

check

1. Use Chroma Pattern Generator to make sequence.

VESA (640x480 800x600 1024x768 1280x1024),

and power saving signal,etc.

2. Confirm the above timing modes must be full screen and

the picture must be normal.

3. LED is amber at power saving mode.

Chroma

Signal Generator

VGA cable

detector

When VGA cable is not plugged, the monitor will work in power saving

mode.

Visual check

Chroma Signal

Generator

Panel Flicker

check

1. Mode:1440×900@60Hz

2. Set Brightness& contrast to default value

3. Do “Auto Adjustment”

4. Shut down PC to check whether there’s glitter on the center

of the picture.

Chroma signal

generator

& PC

1. Mode:1440×900@60Hz

2. Pattern: full white

3. Brightness: Max.

4. Contrast: Default

5. Check power consumption

at each modes

State Power Consumption LED color

Normal green

Stand By amber

Power saving

Power Key Off no

Chroma signal

generator

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Disassembly Procedure

¨

ª

BASE

¨

ª

HINGE COVER

¨

ª

STAND

ª

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ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

¨

ª

Front Cover

¨

ª

Back Cover

ª

ª

49

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

ª

¨ ¨

ª

Keypad Board

¨

ª

Chassis

ª

50

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

¨

ª

Power Board

ª

¨

ª

Key Power Cable

¨

ª

LVDS Cable

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ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

I/F Board

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ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

Packing Procedure

1.1 Paste protection film to protect the monitor. (Figure 1)

1.2 Put the monitor in the PE bag and seal the bag with tape. (Figure 2)

Figure 1 Figure 2

1.3 Put the cushions on the monitor.

1.4 Place the monitor into the carton and then put all the accessories into the carton. At

last, close the carton and seal it with tape.(Figure3)

Figure 3

AUDIO

MONITOR

VGA

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6. Troubleshooting Flow Chart

6.1. Common Acknowledge

 If you change the interface board, be sure that the U103, U105, U106 and U108 these three

components also changed to the new I/F board because there was program inside. If not,

please re-write EDID and upload firmware into U106 via VGA Cable.

 If you adjust clock and phase, please do it at the condition of Windows shut down pattern.
 If you confirm the R.G.B. color is normal or not, please do it under 16-grey scalar pattern.
 This LCM is analog interface. So if the entire screen is an abnormal color that means the

problem happen in the analog circuit part, if only some scale appears abnormal color that

stand the problem happen in the digital circuit part.

 If you check the H/V position, please use the crosshatch pattern.
 This LCM support more than 30 timing modes, if the input timing mode is out of specification,

the picture may appears abnormally.

 If brightness uneven, repairs Inverter circuit or change a new panel.
 If you find the vertical line or horizontal line lost on the screen, please change panel.
 If you find the speaker don’t working, please don’t plug in audio cable, unless change new

speaker.

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6.2. No Power & Power LED Off

Check primary

rectifier volta

g

e

Check IC802,

Check

circuit if

Check F801, P801,

RT,801,D801

Check pin6 of
IC802 voltage
about 12V

CheckC810,D803,C80

7

,

Check pin2 of IC802

v

oltage about

3V

Check primary OVP,

OLP and secondary

Check pin1 of IC802

v

oltag

e is belo

w 1V

Check R811, R810,

R809, R808,R814

END

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6.3. DC output voltage is unstable

Unstable power

Check sampling

Circuit

Check R822, R823,

R824

Change R822, R823,

R824

Check the R pin

voltage of IC803

about 2.5V

Check R819, R820

Check R818, D804, C807 if

short

Change R818,

D804, C807

Check pin2 of

IC802 voltage

is 3V

Check pin1 of

IC802 voltage

below 1V

Change R808, R 809,

R810, R 811, R815,

END

Check the C pin

voltage of IC803 if

3V

Change

IC803

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6.4. Output power is unstable

Unstable power

Check sampling

Circuit

Check R822,

R823, R824

Change R822,
R823, R824

Check the R pin

voltage of IC803

Check R819, R820

Check R818, D804,

C807 if short

Change
R818,

Check pin2

of IC802

Check pin1 of

IC802 voltage

Change R808, R

809, R810, R 811,

END

Check the C
pin voltage of
IC803 if 3V

Change

IC803

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6.5. Backlight can’t be turned on

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ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

6.6 Black Screen and backlight turn on

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6.7 White Screen

END

White screen

Check LVDS

signal

Check

Q101,Q103,Q110,

C108,

C109

Check Panel-Enable of

U105(pin48)

Check VLCD

is 5V

Change

LVDSCable

LVDS Cable

Reinsert

Workmanship

Panel Fail

LVDS cable NG

U105 Fail

OK

OK

OK OK

OK

NG

NG

NG

NG

NG

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6.8 Bad Screen

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

7. Block Diagram

61

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ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

8. Schematic Diagrams

Model

Title

Date Rev:

ViewSonic Corporation

Keypad & Power key

1POWER

▼

▼ 2

From IF BD

SW901

TACT-4.3

1324

ZD9045V6/NC

LED901

LED Y/B

321

SW903

TACT-4.3

1324

ZD9055V6/NC

SW902

TACT-4.3

1324

ZD9015V6/NC

ZD9065V6/NC

CN901

8P 1.5mm 90°

1

2

3

4

5

6

7

8

ZD9025V6/NC

SW904

TACT-4.3

1324

SW905

TACT-4.3

1324

ZD9035V6/NC

63

ViewSonic Corporation Confidential - Do Not Copy

Model

Title

Date Rev:

ViewSonic Corporation

Power Supply SCH

AC 264V RMS

L

AC 264V RMS

AC 264V RMS

DC 380V Max.

N

DC 700V Max.

DC

700V

Max.

TO SCALER BD CN101

AC 264V RMS

VCC5V 3

+16V 3,4

ON/OFF 3

BRIGHTNESS 3

VOL 4

MUTE 4

F802

4A/125V

C823

4700p/400V

+

C817

470u/25V

R816
100R 1W

FB801

6.0mm

R824

3K 1%

+

C807

47u/25V

R822

5K11%

R818

NC / 200

D802

MUR1100ERL

C825

0.1/50V

R829

15K

+

C818

1000u/10V

IC802

NCP1337

1

2

3

45
6
7
8

BO

FB

CS

GNDDRV
Vcc
NC
HV

ZD802

P6KE150A

+

C815

1000u/25V

R811
510K

R814
NC/ 1K

ZD804
NC / 14V

C813

1000p/500V

C814

1000p/500V

R832

750 1

％

R823

47K 1%

-+

D801
UL4-06

1

2

4

3

C806
4700p/400V

R807

750 1

％

ZD803

12V

R827

10R

C809

47p/1KV

R819
1K

R810
510K

R830
10K

R815

12K 1%

C803

0.47/275V

CN801

60mm 8P

1

2

3

4

5

6

7

8

1

3

2

Q803

NC/ PMBT3906

C811

0.1/50V

IC801
LTV817M

3

14

2

R817

200R

R812
10K

C812

220p/50V

C805

2200p/400V NC

C826

12p/1KV

+

C820

47u/25V

Q801
2PC1815GR

1

3

2

R813

1K

R802
1M

D806

1N4148

C821

0.1/100V

R804
68R 1/2W

12

+

C804

150u/420V

C822

0.1/50V

C808
100p/1KV

C

R

A

IC803
TLV431ALP

L801
20mH

4 1

3 2

R821

1K

R805
0R18 2W

D803
A02-LF

F801

2.5A/250V

+

C827

47u/25V

R801
1M

R831

750 1

％

L803

5uH

D805

SRF1045CM

1

2

3

D804

UFF80-015CT

1

2

3

+

C819

1000u/10V

R820

1K

R806

10R

T801
EER28

1

2

3

5

4

10

8

9

7
6

R828

10R

C810

0.1/50V

RT801

NTC 5R

C802

2200p/250V

C801

2200p/250V

Q804

AP2761I

1

23

R803

18K

L802

5uH

P801
AC_SKT

1 2 3

R809

510K

R808

510K

VCC5V 3

VA2226w-1

64

ViewSonic Corporation Confidential - Do Not Copy

Model

Title

Date Rev:

ViewSonic Corporation

20/22 inverter

op2

op1

IS2

op2

op1

IS1

IS1
IS2

+16V

VCC5V

BRIGHTNESS2

ON/OFF

5V

5V

C518

0.1/50V

ZD501
5V6/NC

D512 SN4148

R528
390 1%

C512 330p/50V

R508

43K 1%

C520

0.1/50V

R530

33

R534 15

CN502
2P

1
2

H
L

C528
3p/3KV

R521
470

C507

2.2u/16V

R533

15K 1%/NC

U501

AP9971GM

6
54

3

7

81

2

C501
470u/25V

D505
SN4148

C521 220p/50V

C529

1000p/50V

C506

12p/3KV

CN504
2P

1
2

H
L

C510

1000p/50V

C517
2200p/50V

T501
SPW-068

1

3

4

6

8

7

R501
100K 1%

R539

5.1K 1%

D506
BAT54

3

2

1

C504

1000p/50V

D502
BAV99

1 2

3

C530

2200p/50V

C516 1000p/50V

C505
1000p/50V

R509

NC

D504
BAV99

1
2

3

D507
BAV99

1
2

3

D508 BAV99

1

2

3

C514

2700p/50V

C511 0.022/25V

R502
680/NC

C523

12p/3KV

R531
3K3 1%

R535 15

R527

200

C515

2.2u/16V

C527

2700p/50V

R514
47K 1%

R532
33

R525
3M 3KV

R505
33

IC501
OZ9938G

1
2
3
4
5
6
7
8 9

10

11

12

13

14

15

16

DRV1
VDDA
TIMER
DIM
ISSEN
VSEN
OVPT
NC NC

ENA

LCT

SSTCMP

CT

GNDA

DRV2

PGND

CN503
2P

1
2

H
L

D511 SN4148

C522
1000p/50V

R506
3M 3KV

R523
390 1%

R510

3K3 1%

C525

2200p/50V

R516 604K 1%

C508
220pF/50V/NC

C513

2200p/50V

R504
33

T502
SPW-068

1

3

4

6

8

7

C503

0.1/50V

C524

2200p/50V

R537
10K 1%

C509
3p/3KV

R517 33

R526
1M

R518

470K 1%

R524

200

C502

2.2u/25V

D509 BAV99

1

2

3

CN501
2P

1
2

H
L

D503

BAV99

1

2

3

R507

3M3 1%

R515

NC

D501
SN4148

U502

AP9971GM

6
54

3

7

81

2

R529
470

C526
220pF/50VNC

R511
200K 1%/ NC

R512
110K 1%

R520
100K 1%

R519

1M

Q501
PMBT3904/NC

1

32

R538
10K 1%

R513

10K 1%

R536
15K 1%/NC

C519

0.1/50V

R503
1K5/NC

VA2226w-1

65

ViewSonic Corporation Confidential - Do Not Copy

Model

Title

Date Rev:

ViewSonic Corporation

Input

Del R123 on
VGA_DET line.

DETECT

R

B

G

G

B

R

DETECT

DAT0-

DCLK-

DAT1+

DCLK+

DAT2-

DAT0+

DAT2+

DAT1-

SDA_DVI

SCL_DVI

DAT0-

DAT1-

DCLK-

DAT1+

DAT0+

DAT2+

DDCA_SDA

DDCA_SCL

DDCA_SCL

DCLK+

DAT2-

DDCA_SDA

SCL_DVI
SDA_DVI

PC5V_VGA

VCC3.3

PC5V_VGA

VCC3.3

VCC3.3

DVI5V

DVI5V

VCC3.3

VCC3.3

R214 10 1%

D103
BAV99

1

3

2

R127 100

C123 220p/50V

C119 NC/33p/50V

R114 100

ZD201 5V6

C112 0.047u/16V

C114 0.047u/16V

R205 4K7

R134 4K7

U201

AT24C02BN

1
2
3
4 5

6

7

8

A0
A1
A2
GND SDA

SCL

WP

VCC

C122 33p/50V

C201 0.1/16V

R130 75 1%

D105
BAV99

1

3

2

R204 4K7

R118 100

D204
BAV99

1

3

2

R212 10 1%

R203 100

R201 10 1%

C116 0.047u/16V

ZD104 5V6

U103

AT24C02BN

1
2
3
4 5

6

7

8

A0
A1
A2
GND SDA

SCL

WP

VCC

ZD101 5V6

R115 100

C118 0.047u/16V

C202 0.1/16V

C117 0.047u/16V

D102
BAV99

1

3

2

C113 0.047u/16V

C120 NC/33p/50V

R218
10K

ZD102 5V6

C124 NC/0.1/16V

C125 0.1/16V

D208
BAV99

1

3

2

R126 100

Q201

PMBT3904

1

32

C115 0.047u/16V

R211 10 1%

D202
BAV70

3

2

1

ZD202 5V6

R206

10K

C121 NC/33p/50V

D205
BAV99

1

3

2

R120 470

D206
BAV99

1

3

2

ZD103 5V6

R129 75 1%

R215 10 1%

R216 10 1%

R122 10K

CN201
DVI-D_CON

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

17
18
19
20
21
22
23
24

RX2-

RX2+

GND

RX4-

RX4+

SCL

SDA

VS

RX1-

RX1+

GND

RX3-

RX3+

5V

GND

HP

RX0-

RX0+

GND

RX5-

RX5+

GND

RXC+

RXC-

ZD105 5V6

R124 100

D209
BAV99

1

3

2

D106
BAV70

3

2

1

R213 10 1%

R128 75 1%

R119 100

R133 4K7

CN103
DZ11AA1-H5W6-4F

1
6
2
7
3
8
4
9
5

11

12

13

14

15

10

1617

D201
BAV99

1

3

2

ZD203 5V6

R202 100

D207
BAV99

1

3

2

R117 100

D203
BAV99

1

3

2

R132 2K2

R131 2K2

R207
4K7

R125 100

R116 100

D104
BAV99

1

3

2

FB101
120Ω

R217 10 1%

GNDR 3
GIN 3
GNDG 3

RIN 3

SOG 3

VSYNC 3

GNDB 3

BIN 3

HSYNC 3

DET_VGA 3

VCC3.33

DET_DVI 3

HP_CTRL 3

B- 3

B+ 3

G- 3

CLK- 3

R+ 3

CLK+ 3

R- 3

G+ 3

WP_VGA 3

DDCA_SCL 3

DDCA_SDA 3

SCL_DVI 3
SDA_DVI 3

WP_VGA 3

VA2226w-1

66

ViewSonic Corporation Confidential - Do Not Copy

Model

Title

Date Rev:

ViewSonic Corporation

SCALER

To
CN901

From
CN802

Mute
VOL
Brightness
ON/OFF

add R123 on
DVT_DET line.

change C110 to
0805 packaging.

走線.改為圓弧

1: Down
2: UP
3: ADC (Power)
4: key 2
5: LED_Blue
6: GND
7: LED_Yellow
8: Key 1

HDCP_WP
EEP_WP

VCC5V

AVDD_33

VCC5V

VDDP_33

VCC5V

AVDD_18

VDDP_33

VCC3.3

AVDD_33

VDDC_18

VCC3.3

AVDD_33

VDDC_18

VCC3.3

AVDD_18 VDDP_33

VCC5V

VCC1.8

VCC5V

VCC3.3

VCC3.3

R149 4K7

R123 1K

+

C102
100u/16V

R107

4K7

C129 0.1/16V

R148 10K

R106

4K7

C159 0.1/16V

C128 0.1/16V

R170

10K

R210 10K

C141 0.1/16V

C135 0.1/16V

R112
1K

+

C151
10u/25V

R163

390 1%

R104

20K

FB102

60Ω

R209 10K

C131 0.1/16V

C154

0.1/16V

C161 0.1/16V

R150 4K7

R155

1K

C103

0.1/16V

CN101
8P 2.0mm

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

R111
10K

R109

390

R101

33K

R166

NC

R136 10K

1

3

2

Q102
PMBT3906

R154

1K

C143 0.1/16V

R156

1K

R103
51

R161 100

R160

1K

TSUMU58WHJ-LF

U104

28

25

26
23

27

24

22
32
33

7

31

30

41

43

42

44

51

80

128

127

81

82

83

84

85

86

91

92

93

94

95

96

97

98

99

100

79
78
77

1

11

9
10
12
13

8

15
16
18
19

172952

104

8737103

112

34
35

5

6

118

14

107

36

73

119
120
121

123

124

117

116

115

38

39

108

3

4

53

74

40

59

7288101

76

75

102

109

126

114

111

110

20

90

89

122

2

113565557616470

67

21

106

105

47

46

48

50

49

45

686963

62

606566

71

125

54

58

RIN0P

GIN0P

SOGIN0
BIN0P

RIN0M

GIN0M

BIN0M
HSYNC0
VSYNC0

REXT

REFP

REFM

SDO

SCK

CSZ

SDI

GPIO_P24/PWM2

LVACKM

XIN

XOUT

LVA2P

LVA2M

LVA1P

LVA1M

LVA0P

LVA0M

LVB3P

LVB3M

LVBCKP

LVBCKM

LVB2P

LVB2M

LVB1P

LVB1M

LVB0P

LVB0M

LVACKP

LVA3M

LVA3P

GND

GND

RX2P
RX2N
RX1P
RX1N

AVDD_33

RX0P
RX0N
RXCKP
RXCKN

GND

GND

GND

VDDC

VDDP

MODE

VCTRL

VDDP

DDCA_SDA/RS232_TX
DDCA_SCL/RS232_RX

DDCD_SDA
DDCD_SCL

NC

AVDD_33

VDDP

GPIO_P22/PWM1

GPIO_P04

GPIO_P00/SAR0
GPIO_P01/SAR1
GPIO_P02/SAR2

GPIO_P06

GPIO_P07

NCNCNC

I2C_MDA

I2C_MCL

RST

GPIO_P15

GPIO_P16

VDDC

VDDC

VDDP

VDDP

GND

GND

GND

LVA4M

LVA4P

BYPASS

GPIO_P25

VDDC

VDDP

NC

NC

AVDD_33

LVB4M

LVB4P

GPIO_P03/SAR3

GPIO_P14/PWM0

GNDNCNCNCNCNCNC

NC

AVDD_18

GND

GND

GPIO45

GPIO46

GPIO44

GPIO42

GPIO43

GPIO47

GND

GND

GND

GND

VDDP

VDDP

VDDP

VDDP

GPIO_P13/PWM2

VDDP

VDDP

C133 0.1/16V

Q106
PMBT3904

1

32

U202
AT24C04N

1
2
3
4 5

6

7

8

A0
A1
A2
GND SDA

SCL

WP

VCC

R110

4K7

Q101

AP2305GN

1

3 2

+

C142 22u/25V

R164

NC

R139
10K

CN104
FFC-CON

1

2

3

4

6

8

10

12

14

16

18

20

22

24

26

28

30

7

9

11

13

15

17

19

21

23

25

27

29

5

C110

4.7u/10V

C145 0.1/16V

R105

390

C132 0.1/16V

R138 10K

R165
10K

C150

22p/50V

R143 10K

1

3

2

Q105
PMBT3906

R153

1K

+

C108
220u/16V

R146 10K

C111

NC

R152 10K

Q104
PMBT3904

1

32

U102
LD1117AL-1.8V

3

1

2

VIN

ADJ

VOUT

R142 NC

C149

0.1/16V

R141 10K

C109

NC

R168
10K

C153 0.1/16V

R162 100

R135 10K

R140
10K

U105

SST25VF010A

1

2

3
4 5

6

7

8

CS#

SO

WP#
GND SI

SCK

HOLD#

VCC

X1

14.31818MHz

Q103
2N7002

1

32

C136 0.1/16V

C157 0.1/16V

C101

0.1/16V

C144 0.1/16V

C138 0.1/16V

R158 470

R169 NC/0

R167 NC/0

R157 1K

C127 0.1/16V

R147 10K

CN102
2x4P 2.0mm

1
2
3
4
5
6
7
8

R102

4K7

U101
AP1084K33LA

3

1

2

VIN

ADJ

VOUT

R144 NC

C158 0.1/16V

C105

0.1/16V

FB103

0Ω

D101
SKS20-04AT

C107

0.1/16V

C140 0.1/16V

C104

0.1/16V

C147 0.1/16V

R137 10K

C134 0.1/16V

R151 10K

C152

22p/50V

C130 0.1/16V

C137 0.1/16V

C160 0.1/16V

C146 0.1/16V

C148
1u/16V

+

C126 22u/25V

U107
AT24C04N

1
2
3
4 5

6

7

8

A0
A1
A2
GND SDA

SCL

WP

VCC

C106

0.1/16V

C139 0.1/16V

R108
20K

R159

1K

DET_VGA

2

B-2

CLK+2

VSYNC2

SOG2

CLK-2

HSYNC2

R+2

RIN2

DDCA_SDA2

DET_DVI 2

G-2

SDA_DVI2

DDCA_SCL2

GIN2

GNDG2

GNDR2

BIN2

R-2

SCL_DVI2

GNDB2

G+2

WP_VGA 2

B+2

HP_CTRL

2

VCC5V

2

VCC3.3

2

VA2226w-1

67

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

9. PCB Layout Diagrams

68

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

69

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

70

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

71

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

10. Exploded Diagram and Exploded Parts List

ViewSonic Model Number: VS11803
Rev: 1a

Serial No. Prefix: QQK

Item ViewSonic P/N Ref. P/N Description Q't

y

1 C-00008577 714030011200R ASSY,BEZEL,ASM,GENERAL,LE2275 1
2 B-00008567 791031500000R KEYPAD 1
3 E-00008424 631102220091R PANEL 22" W 1
4

N

/A 511150102600R FOIL,AL.,DOUBLE COND.LEFT,LE2239 1

5

N

/A 511150102610R FOIL,AL.,DOUBLE COND.,RIGHT,LE2239 1
6 B-00008566 791031400000R POWER BOARD 1
7 B-00008574 791031300600R IF BOARD 1
8

N

/A 503060005800R GASKET,EMI,l80XW10XH6.5,LE2280 1
9 CB-00008353 430300801250R KEYPAD CABEL 1

10 CB-00008192 430303000840R LVDS CABLE 1
11

N

/A 701000004800R ASSY,CHASSIS,W/DVI, LE2275 1

12

N

/A 511150101800R FOIL,AL.,DOUBLE COND,60X35XT0.07mm,LE2016 1

13

N

/A 714050010300R ASSY,BACK,Asm,W/DVI,LE2275 1

14

N

/A 503040000600R RUBBER,COVER BLACK LE2082 4

15 C-00008570 501020216100R HINGE,COVER,LE2082 1
16 PL-00008187 714010005100R ASSY,STAND,LE2082 ROHS 1
17 C-00008567 714020002200R ASSY,BASE, LE2082 ROHS 1

A HW-00005269 509146305300R SCREW,PW,CROSS,W/WAS,M3*5,NI 4
B HW-00005270 509000000700R BOLT,#4-40*11.8,Ni 4
C

N

/A 509146306102R SCREW,P,CROSS W/W-SPR,M3*6,Zn,ROHS 1

D

N

/A 509116608510R SCREW,P,CROSS,M4*8,Black, NL(Nylok) 4

EXPLODED PARTS LIST ( VA2226w-1 )

72

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

73

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

7

8

9

ViewSonic Model Number: VS11803
Rev: 1a

Item ViewSonic P/N Ref. P/N Location Q'ty

1 P-00008419

506120300430R

BAG,PO+EPE,L590xW530xT0.6mm(PRINTED)LE2239

1

2 N/A

453010100380R

CABLE,D-SUB 15P MALE 6FT BLACK/BLUE, ROH

1

3 CB-00008190

453030300370R CABLE,DVI-D 18+1P MALE 6FT BLACK , ROHS 1

4 A-00006733

453070800480R PWRCORD 7A/125V BLK 6FT CNS VCTF 3Gx0.75 1

5 P-00008603

506040003500R

CUSHION,LEFT,LE2280

1

6 P-00008606

506020017700R

CARTON LE2275(VA2226w)

1

7 A-00005255

453070800170R PWRCORD 10A/250V BLK 6FT 1

8 P-00008604

506040003510R

CUSHION,RIGHT,LE2280

1

9 C-00008567

714020002200R

ASSY,BASE, LE2082 ROHS

1

10 P-00008601

506120004010R

BAG,PLASTIC,W300xL250xT0.05mm

1

11 DC-00008552

703000008100R

KIT ACCESSORY LE2275(VA2226W)

1

PACKING PART LIST ( VA2226w-1 )

74

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

11. Recommended Spare Parts List

Serial No. Prefix: QQK Rev: 1a

Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number#

1 Power Cord 10A/250V 6FT (Australia) A-00003671 453070800420R
2 Power Cord 16A/250V 6FT (Europe) A-00003674 453070800210R
3 Power Cord 5A/250V (Singapore) A-00003675 453070800230R
4 Power Cord, 10A/250V BLK 6FT (China) A-00005255 453070800170R
5 Power Cord 7A/125V 6FT (Taiwan) A-00006733 453070800480R
6 Power Cord 16A/250V 6FT (Korea) A-00006734 453070800500R
7 Power Cord - 10A/125V BLK 6FT UL/CSA,SVT 3Cx (USA) A-00008111 453070800150R
8 Led Board RoHS B-00008382 790960500000R

9 Inverter Board W/Out Speaker - LE2275-012 RoHS B-00008566 791031400000R
10 Key Board - LE2275-012 RoHS B-00008567 791031500000R
11 Interface Board - (V0,W/O SPK),LE2275-612 RO B-00008574 791031300600R
12 Interface Board - (A01,W/O SPK) LE2275-012 R B-00008575 791031300000R
13 Interface Board - (V0,W/O SPK) LE2275-712 RO B-00008576 791031300700R
14 Base Assembly RoHS C-00008567 714020002200R
15 Cover Hinge - LE2082 C-00008570 501020216100R
16 Front Panel - General C-00008577 714030011200R
17 Front Panel - CPT LE2275 C-00008578 714030011210R
18 Back Cover - W/DVI LE2275 C-00008579 501020216000R
19 DVI Cable - 18+1P MALE 6FT Black RoHS CB-00008190 453030300370R
20 D-Sub Cable - 15P MALE 6FT RoHS CB-00008191 453010100310R
21 Flat Cable - 30P 187mm ROHS CB-00008192 430303000840R
22 HRN 8P 185mm UL1571#28,RoHS CB-00008353 430300801250R
23

Documentation:

User Guide With Installation Software DC-00008552 703000008100R
24 LCD Panel 20" Wide TFT, M220EW01-V0 E-00006218 631102220040RV
25

LCD Panel 22" Wide Format, Response time: 5ms, CLAA220WA01

E-00008391 631102220151RV
26 LCD Panel - 22" MT220WW01-V0-G1 AM2200001001 E-00008424 631102220091R
27 PE Bag - +PO L590xW530xT0.6mm P-00008419 506120300430R
28 Bag Plastic - L300xW250xT0.05mm China P-00008601 506120004010R
29 Foam - Left P-00008603 506040003500R
30 Foam - Right P-00008604 506040003510R
31 Craft Box P-00008606 506020017700R
32

Plastics: [Pedestal,

Pedestal (Stand) RoHS PL-00008187 714010005100R

Remark 1:

Above listed items are examples, supplier can expand the rows to add more necessary items.

Remark 2:

ViewSonic Model Number: VS11803

All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by
ViewSonic Corporation. This is to eliminate repeated cross checks of each item between this version and prior versions.

Packing Material:

[Box, Foam, Bags]

RECOMMENDED SPARE PARTS LIST ( VA2226w-1 )

Description

Accessories:

[Adapter, Remote
Control;Power
Cord]

PC Board
Assembly: [All

PCBA]

Cabinets:

[Front Panel, All
Covers, Base
Assembly]

Cables: [All Cables]

Electronic
Components:

[CRT-

EEPROM, Fly Back

ViewSonic Model Number: VS11803
Rev: 1a

Serial No. Prefix: QQK

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty

1 N/A 506380002100R TAPE WRAPPING TYPE(VIEWSONIC) 50mmx75M L 0.713
2 N/A 506431000300R FILM,PE 500mmx900M ROHS 0.2
3 N/A 506039000101R CORNER PAPER 1000x50x50xT3mmLE1711 2.778
4 N/A 506039002200R CORNER PAPER 1850x50x50xT5mm LE1705 5.556
5 N/A 506039006200R CORNER PAPER 1100x50x50xT3mm LE1513 ROH 2.778
6 N/A 506038004800R CARDBOARD L1150xW1110xT4mm ROHS LP1909 2.778
7 N/A 506150009600R PALLET,L1162xW1140xH120mm,LE2280 1.389
8 P-00008604 506040003510R CUSHION,RIGHT, LE2280 100

9 P-00008603 506040003500R CUSHION,LEFT, LE2280 100
10 P-00008601 506120004010R BAG PLASTIC L300xW250xT0.05mm 100
11 P-00008419 506120300430R BAG EPE+PO L590xW530xT0.6mm(PRINTED)LE22 100
12 P-00008606 506020017700R CARTON LE2275(VA2226w) 100
13 CB-00008191 453010100310R CABLE D-SUB 15P MALE 6FT BLACK/BLUE ROH 100
14 A-00008111 453070800150R PWR CORD 10A/125V BLK 6FT UL/CSA SVT 3Cx 100
15 CB-00008190 453030300370R CABLE,DVI-D 18+1P MALE 6FT BLACK , ROHS 100
16 N/A 505040207600R INSULATOR,PET,490x313x0.1mm,LE2280# 100
17 N/A 506250016600R LABEL AGENCY LE2275(VA2226w) 100
18 DC-00008552 703000008100R KIT ACCESSORY LE2275(VA2226W) 100
19 N/A 714070E01000R ASSY,FINAL(B+S)W/O SPK,LE2275-012(VA2216 100
20 N/A 506440002300R LABEL,BLANK,76.2x76.2mm,LE1709(UPC) 100
21 N/A 506440002400R LABEL,BLANK,50x25mm,LE1709(S/N) 100
22 N/A 506390500100R LABEL,ENERGY STAR, LE1709 100
23 N/A 506390000600R LABEL,HI-POT PASS, LE1709 100
24 N/A 506440002600R LABEL,BLANK,210x65mm,LE1709(PALLET) 2.78
25 DC-00008552 703000008100R KIT ACCESSORY LE2275(VA2226W)
26 N/A 506070110600R MNL USER'S(CD),LE2275(VA2226W) 100
27 N/A 506280105400R QUICK SETUP GUIDE CASA(DUAL)LE2081 100
28 N/A 506420404100R INSERT SHEET CASA 1680*1050 100
29 N/A 506420404200R BASE ATTCHMENT CASA 100
30 N/A 714070E01000R ASSY,FINAL(B+S)W/O SPK,LE2275-012(VA2216
31 N/A 503040000600R RUBBER,COVER BLACK LE2082 400
32 N/A 509116608510R SCREW,P,CROSS,M4*8,BLACK,NL(NYLOK) 400
33 C-00008570 501020216100R HINGE,COVER,LE2082 100
34 PL-00008187 714010005100R ASSY,STAND,LE2082 ROHS 100
35 C-00008567 714020002200R ASSY,BASE, LE2082 ROHS 100
36 N/A 714050010300R ASSY,BACK,Asm,W/DVI,LE2275 100
37 C-00008578 714030011210R ASSY,BEZEL,ASM,CPT,,LE2275 100
38 N/A 714080E01000R ASSY,PANEL,W/O SPK,LE2275-012(VA2216W) 100
39 PL-00008187 714010005100R ASSY,STAND,LE2082 ROHS
40 N/A 501260206000R STAND,LE2082 100
41 N/A 501040200600R CLIP,CABLE,LE2082 200
42 N/A 502060300800R HINGE,LE2082 100
43 N/A 509412608500R SCREW,B,CROSS,T.T-4*8,BLK ROHS 300
44 C-00008567 714020002200R ASSY,BASE, LE2082 ROHS
45 N/A 501020215600R COVER,BASE, LE2082 100
46 N/A 503020002710R RUBBER FOOT L14.8*W9.6*T3.5mm (PATTERN)R 600
47 N/A 714050010300R ASSY,BACK,Asm,W/DVI,LE2275
48 C-00008579 501020216000R COVER,BACK,W/DVI,LE2275 100
49 N/A 506431000400R FILM,PET,L135xW30xT0.05mm,ROHS 100
50 C-00008578 714030011210R ASSY,BEZEL,ASM,CPT,,LE2275
51 N/A 501010200710R BEZEL,CPT,LE2275 100
52 N/A 501010211400R BEZEL,COVER,Down,LE2280 100
53 N/A 501030207300R BUTTON,KEY,LE2280 ROHS 100
54 N/A 501120106400R LENS,LE2280 100
55 N/A 506102000300R LOGO PLATE VIEWSONIC LE1709 100
56 N/A 501110601000R LOGO THREE BRIDS 7.9MM LE2082 100
57 N/A 714080E01000R ASSY,PANEL,W/O SPK,LE2275-012(VA2216W)
58 HW-00005269 509146305300R SCREW,PW,CROSS,W/WAS,M3*5,NI 400
59 N/A 509146306102R SCREW,P,CROSS W/W-SPR,M3*6,Zn,ROHS 100
60 N/A 701000004800R ASSY,CHASSIS,W/DVI, LE2275 100
61 N/A 511150102610R FOIL,AL.,DOUBLE COND.,RIGHT,LE2239 100
62 N/A 511150102600R FOIL,AL.,DOUBLE COND.LEFT,LE2239 100
63 HW-00005270 509000000700R BOLT,#4-40x11.8,Ni FOR D-SUB/DVI CONN.RO 400
64 B-00008575 791031300000R PCBA,I/F BOARD(A01,W/O SPK),LE2275-012 R 100
65 B-00008566 791031400000R PCBA,P/I BOARD,W/O SPK,LE2275-012 ROHS 100
66 B-00008567 791031500000R PCBA,KEYPAD BOARD,LE2275-012 ROHS 100
67 E-00008391 631102220151RV LCP 22" CLAA220WA01(A)-000(CPT) 100

BOM LIST ( VA2226w-1 )

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ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty

68 N/A 631102220152RV LCP 22" CLAA220WA01(A)-011(CPT)
69 CB-00008192 430303000840R

HRN LVDS FFC 30P 187mm ROHS

100
70 CB-00008353 430300801250R HRN ASS'Y 8P 185mm UL1571#28,RoHS 100
71 N/A 503060005800R GASKET,EMI,L80xW10xH6.5mm,LE2280 100
72 N/A 511150101800R FOIL,AL.,DOUBLE COND.,60x35xT0.07mm, LE2 100
73 N/A 503080001100R

RUBBER﹐SILICON﹐THERMAL CONDUCT 45x10xt

100
74 N/A 701000004800R ASSY,CHASSIS,W/DVI, LE2275
75 N/A 502090307300R CHASSIS,W/DVI,LE2275,ROHS 100
76 N/A 502080000200R SUPPORT,HINGE,LE2280 100

76

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

77

ViewSonic Corporation Confidential - Do Not Copy VA2226w-1

* Reader’s Response*

Dear Readers:

Thank you in advance for your feedback on our Service Manual, which allows continuous improvement
of our products. We would appreciate your completion of the Assessment Matrix below, for return to
ViewSonic Corporation.

Assessment

A. What do you think about the content of this Service Manual?

Unit Excellent Good Fair Bad

1. Precautions and Safety Notices

2. Specification

3. Front Panel Function Control Description

4. Circuit Description

5. Adjustment Procedure

6. Troubleshooting Flow Chart

7. Block Diagrams

8. Schematic Diagrams

9.PCB Layout Diagrams

10. Exploded Diagram and Exploded Parts List

11. Recommended Spare Parts List

B. Are you satisfied with this Service Manual?

Item Excellent Good Fair Bad

1. Service Manual Content

2. Service Manual Layout

3. The form and listing

C. Do you have any other opinions or suggestions regarding this service manual?

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1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes
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