ViewSonic LCD Display VS11349 User manual

ViewSonic VX2235wm-1
Model No. VS11349
22” Color TFT LCD Display
(VX2235wm-1_SM Rev. 1a Aug. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA- [phone]
Service Manual

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Copyright
Copyright © 2006 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.
Revision History
Revision SM Editing Date ECR Number Description of Changes Editor
1a 8/14/2006 Initial Release J. Chang

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TABLE OF CONTENTS
1. Precautions and Safety Notices 1
2. Specification 3
3. Front Panel Function Control Description 13
4. Circuit Description 19
5. Adjustment Procedure 20
6. Troubleshooting Flow Chart 54
7. Recommended Spare Parts List 62
8. Exploded Diagram and Exploded Parts List 64
9. Block Diagram 67
10. Schematic Diagrams 68
11. PCB Layout Diagrams 74

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1. Precautions and Safety Notices
1. Appropriate Operation
(1) Turn off the product before cleaning.
(2) Use only a dry soft cloth when cleaning the LCD panel surface.
(3) Use a soft cloth soaked with mild detergent to clean the display housing.
(4) Use only a high quality, safety approved AC/DC power cord.
(5) Disconnect the power plug from the AC outlet if the product will not be used for a long period of time.
(6) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off.
(7) Do not touch the LCD panel surface with sharp or hard objects.
(8) Do not place heavy objects on the LCD display, video cable, or power cord.
(9) Do not use abrasive cleaners, waxes or solvents for your cleaning.
(10) Do not operate the product under the following conditions:
-Extremely hot, cold or humid environment.
-Areas containing excessive dust and dirt.
-Near any appliance generating a strong magnetic field.
-In direct sunlight.
2. Caution
No modification of any circuit should be attempted. Service work should only be performed after you are thoroughly
familiar with all of the following safety checks and servicing guidelines.
3. Safety Check
Care should be taken while servicing this LCD display. Because of the high voltage used in the inverter circuit, the voltage is
exposed in such areas as the associated transformer circuits.
4. LCD Module Handling Precautions
4.1 Handling Precautions
(1) Since front polarizer is easily damaged, pay attention not to scratch it.
(2) Be sure to turn off power supply when connecting or disconnecting input connector.
(3) Wipe off water drops immediately. Long contact with water may cause discoloration or spots.
(4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
(5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard surface.
(6) Since CMOS LSI is used in this module, take care of static electricity and ensure human earth when handling.
(7) Do not open or modify the Module Assembly.
(8) Do not press the reflector sheet at the back of the module in any direction.
(9) In the event that a Module must be put back into the packing container slot after it was taken out of the container, do
not press the center of the CCFL Reflector edge. Instead, press at the far ends of the CFL Reflector edge softly.
Otherwise the TFT Module may be damaged.
(10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate or tilt the Interface Connector of
the TFT Module.
(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist or bend the
TFT Module even momentarily. When designing the enclosure, it should be taken into consideration that no
bending/twisting forces may be applied to the TFT Module from outside. Otherwise the TFT Module may be
damaged.
(12) The cold cathode fluorescent lamp in the LCD contains a small amount of mercury. Please follow local ordinances or
regulations for disposal.
(13) The LCD module contains a small amount of materials having no flammability grade. The LCD module should be
supplied with power that complies with the requirements of Limited Power Source (IEC60950 or UL1950), or an
exemption should be applied for.
(14) The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit (IEC60950 or
UL1950). Do not connect the CCFL to a Hazardous Voltage Circuit

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Correct methods : Incorrect Methods :
Only touch the metal-frame of the panel or the front
cover of the monitor.
Do not touch the surface of the polarizer .
Surface of the panel is pressed by fingers & this may
cause “ MURA “
Take out the monitor with cushion Take out the monitor by grasping the LCD panel.
That may cause “ MURA“.
Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects .
That could scratch the surface of panel

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2. Specification
2.1 INSTRUCTION
FEATURES VX2235wm
Size 22 " wide
Luminance (Typ) 280 cd/㎡
Contrast Ratio (Typ) 700:1
Colors 16.2 M (6 bits + 2 bits FRC)
Response Time 5 ms(on/off)
Viewing Angle (H/V) 170 ° / 160 °
TFTLCD PANEL
1st
CMO
A220Z1
Recommend resolution 1680x1050@60Hz
Analog Yes (75ohms, 0.7/1.0 Vp-p)
Input Signal
Digital Yes
Separate Sync Yes
Composite Sync Yes
Sync Compatibility
Sync on Green Yes
PC Yes
Power Mac Yes
Compatibility
TV Box (NextVision 6) Yes
Power Voltage AC 100-240V, 50/60Hz Yes
On Mode(Typ) < 48 W
Power Consumption
Off Mode (Max) ≦1 W
Audio 3W / THD 10% (Max) Yes
Tilt ( 20 ° - -5 °) Yes
Swivel No
Pivot No
Ergonomics
Height Adjust No
OSD Control [ 1 ] [ 2 ] [ ][▼] [▲] Yes
Physical (W x H x D) 524 x 482 x 244 mm
Dimension
Package (W x H x D) 575 x 522 x 150 mm
Physical (Net Weight) 6 Kg / 13.2 lbs
Weight
Package (Gross Weight) 7.5 Kg / 16.5 lbs
Temperature (℉/℃) 41℉-95℉/+5℃-+35℃
Operating Condition
Humidity (%) 20 % - 80 %
Temperature (℉/℃) -4℉-131℉/-20℃-55℃
Storage Condition
Humidity (%) 20 % - 85 %
Regulation
Global: CB, MPR II,WEEE,ROHS
VSA:UL, cUL, FCC-B, TUV-S, NOM, Energy Star
VSE:TUV/ERGO(covers ISO13406-2&MPR II),CE, GOST-R+Hygienic ,SASO , ENERGY
VSI: BSMI, CCC, PSB, C-TICK, MIC, Green Mark
VSCN:CCC

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2.2 GENERAL SPECTION
Test Resolution & Frequency 1680x1050 @ 60Hz
Test Image Size Full Size
Contrast and Brightness Controls Factory Default:
Contrast = 70%, Brightness = 100%
2.3 VIDEO INTERFACE
Analog Input Connector DB-15 (Analog), refer the appendix A
Digital Input Connector DVI-D (Digital), refer the appendix B
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 DB-15 Pin out Compliant DDC 1/2B
Video Signals
1. Video RGB (Analog)
Separate, Composite, and Sync on Green
2. 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 1/2B Compliant with Revision 1.3
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
640 x 350*, 640 x 480, 720 x 400* (640 x 400*), 800 x 600, 832 x 624,
1024 x 768, 1152 x 864, 1152 x 870, 1280 x 720, 1280 x 960, 1280 x
1024 , 1400 x 1050 , 1440 x 900 , 1600 x 1200, 1680 x 1050
* The image vertical size might not be full screen.
But the image vertical position should be at the center.
Exclusions Not compatible with interlaced video

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2.4 POWER SUPPLY
Internal Power Supply Part Number: 27-D009542
Input Voltage Range AC100~240 (Worldwide)
Input Frequency Range 50 to 60 Hertz
Short Circuit Protection OUTPUT CAN BE SHORTED WITHOUT DAMAGE
Over Current Protection 3.3~4.5A typical at 5 VDC ( PROTECT WHEN SHORT CIRCUIT )
Leakage Current 3.5MA (MAX) AT 264VAC / 50HZ
Efficiency 80 % TYPICAL AT 115VAC FULL LOAD
Fuse INTERNAL AND NOT USER REPLACEABLE
Power Dissipation < 48 WATTS (TYP)
Max Input AC Current 1.6A (max)
Inrush Current (Cold Start) 80 A Max./ 240VAC / 50Hz (Cold Start at 25℃,Full Load)
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 define to be in compliance with
ISO 7779 (DIN EN27779:1991) Noise measurements of machines
acoustics. Power Switch noise shall not be considered
US Type Power Cable
Separate 3-prong NEMA 5-15P type plug. Length = 1.8m. Connects
to display.
Color = Black
European Type Power Cable
Schuko CEE7-7 type plug.
Length = 1.8m, Connects to display.
Color = Black
CCC Type Power Cable
Separate 3-prong type plug.
Length = 1.8m. Connects to display.
Color = Black
PSE Type Power Cable
Separate 2-prong NEMA 1-15P type plug. Length = 1.8m. Connects
to display.
Color = Black
Power Saving Operation(Method) VESA DPMS Signaling
Power Consumption
On Mode < 48 W (Typ) / 50 W (Max)
Saving Mode < 2 W@230VAC 50HZ
Off Mode < 1 W @230VAC 50Hz
(DC Power Off; Meet to Energy Star Ver4.0 Tier2)
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 – 85* Hz
Maximum Pixel Clock 150 MHz
Sync Polarity Independent of sync polarity.
Timing Table
Analog
Item
Timing
Separated
Composite
SOG
Digital - TMDS
Remark
1 640 x 350 @ 70 Hz, 31.5 KHz
For Analog sync, the image vertical size image
will be not full screen (Still at the center), And the
OSD will be 640x350/640x400/720x400
(primary= 720x400).
2 640 x 350 @ 85 Hz, 37.9 KHz
For Analog sync, the image vertical size image
will be not full screen (Still at the center), And the
OSD will be 640x350/640x400/720x400
(primary= 720x400).
3 640 x 400 @ 60 Hz, 31.5 KHz
For Analog sync, switch 640x400@60Hz and
640x480@60Hz by [1]+[2] short cut key (primary
= 640x480@60Hz)
4 640 x 400 @ 70 Hz, 31.5 KHz
For Analog sync, the image vertical size image
will be not full screen (Still at the center), And the
OSD will be 640x350/640x400/720x400
(primary= 720x400).
5 640 x 400 @ 85 Hz, 37.9 KHz
For Analog sync, the image vertical size image
will be not full screen (Still at the center), And the
OSD will be 640x350/640x400/720x400
(primary= 720x400).
6 640 x 480 @ 50 Hz, 24.7 KHz
7 640 x 480 @ 60 Hz, 31.5 KHz
For Analog sync, switch 640x400@60Hz and
640x480@60Hz by [1]+[2] short cut key (primary
= 640x480@60Hz)
8 640 x 480 @ 67 Hz, 35 KHz
9 640 x 480 @ 72 Hz, 37.9 KHz

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10 640 x 480 @ 75 Hz, 37.5 KHz
11 640 x 480 @ 85 Hz, 43.3 KHz
12 720 x 400 @ 70 Hz, 31.5 KHz
For Analog sync, the image vertical size image
will be not full screen (Still at the center), And the
OSD will be 640x350/640x400/720x400
(primary= 720x400).
13 720 x 400 @ 85 Hz, 37.9 KHz
For Analog sync, the image vertical size image
will be not full screen (Still at the center), And the
OSD will be 640x350/640x400/720x400 (primary
= 720x400).
14 720 x 480 @ 60 Hz, 31.5 KHz
For Analog sync, the image vertical size image
will be not full screen (Still at the center),and the
information OSD shows 640x480
15 720 x 576 @ 50 Hz, 31.3 KHz
For Analog sync, the image vertical size image
will be not full screen (Still at the center),and the
information OSD shows 800x600
16 800 x 600 @ 56 Hz, 35.1 KHz
17 800 x 600 @ 60 Hz, 37.9 KHz
18 800 x 600 @ 72 Hz, 48.1 KHz
19 800 x 600 @ 75 Hz, 46.9 KHz
20 800 x 600 @ 85 Hz, 53.7 KHz
21 832 x 624 @ 75 Hz, 49.7 KHz
22 1024 x 768 @ 50 Hz, 39.6 KHz
For Analog sync, Switch 1024x768@50Hz and
1280x768@50Hz by [1]+[2] short cut key
(primary = 1024x768@50Hz)
23 1024 x 768 @ 60 Hz, 48.4 KHz
24 1024 x 768 @ 70 Hz, 56.5 KHz
25 1024 x 768 @ 75 Hz, 60 KHz
26 1024 x 768 @ 75 Hz, 60.2 KHz
27 1024 x 768 @ 85 Hz, 68.7 KHz
28 1152 x 864 @ 75 Hz, 67.5 KHz
29 1152 x 870 @ 75 Hz, 68.7 KHz
30 1280 x 768 @ 50 Hz, 39.6 KHz
For Analog sync, Switch 1024x768@50Hz and
1280x768@50Hz by [1]+[2] short cut key
(primary = 1024x768@50Hz)
31 1280 x 768 @ 60 Hz, 47.4 KHz
32 1280 x 768 @ 60 Hz, 47.8 KHz
33 1280 x 768 @ 75 Hz, 60.3 KHz
For Analog sync, Switch 1024x768@75Hz and
1280x768@75Hz by [1]+[2] short cut key
(primary = 1024x768@75Hz)
34 1280 x 768 @ 85 Hz, 68.6 KHz For Analog sync, Switch 1024x768@85Hz and

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1280x768@85Hz by [1]+[2] short cut key
(primary = 1024x768@85Hz)
35 1280 x 960 @ 50 Hz, 49.4 KHz
36 1280 x 960 @ 60 Hz, 59.7 KHz
37 1280 x 960 @ 75 Hz, 75.2 KHz
38 1280 x 1024 @ 50 Hz, 52.7 KHz
39 1280 x 1024 @ 60 Hz, 64 KHz
40 1280 x 1024 @ 70 Hz, 74.6 KHz
41 1280 x 1024 @ 72 Hz, 76.8 KHz
42 1280 x 1024 @ 75 Hz, 80 KHz
43 1360 x 768 @ 60 Hz, 47.7 KHz
44 1400 x 1050 @ 50 Hz, 54.1 KHz
45 1400 x 1050 @ 60 Hz, 64.7 KHz
46 1400 x 1050 @ 60 Hz, 65.3 KHz
For analog sync,, Switch 1400x1050@60Hz and
1680x1050@60Hz by [1]+[2] short cut key
(primary = 1680x1050@60Hz)
47 1400 x 1050 @ 75 Hz, 82.3 KHz
48 1440 x 900 @ 60 Hz, 55.5 KHz
49 1440 x 900 @ 60 Hz, 59.9 KHz
50 1440 x 900 @ 75 Hz, 75 KHz
51 1600 x 1200 @ 60 Hz, 75 KHz
52 1680 x 1050 @ 60 Hz, 65.3 KHz
For analog sync,, Switch 1400x1050@60Hz and
1680x1050@60Hz by [1]+[2] short cut key
(primary = 1680x1050@60Hz)
*1. Tolerance ≧±2KHz. (if the range dose not cover other timing mode)
*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message with blanking.
*3. The image quality of 85Hz mode might be worse than 75Hz.
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 : 3 seconds (Max), excluding “Auto Image Adjust” time
● Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting when execute “Auto Image
Adjust”
● The monitor needs to do “Auto Adjust” the first time when a new mode is detected
(See section “0-Touch™ Function Actions”)

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2.6 FRONT PANEL CONTROLS AND INDICATORS
Front Panel Hardware Controls
Power Switch (Front Head) Power Control, soft Power Switch.
Power LED (Front Head) Blue – ON
Orange – Active Off
Dark = Soft Power Switch OFF
Front Panel Controls (Head)
[ 1 ] [ 2 ] [ ] [▼] [▲]
[ 1 ] BUTTON 1
[ 2 ] Button 2
[] Power
[▼] DOWN ARROW BUTTON
[▲] UP 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
Short Cuts Function from the button(s)
[1] Main Menu
[2] Input toggle (Analog or Digital)
[▼] To immediately activate Brightness/Contrast menu.
[▼] +[▲] Recall both of Contrast and Brightness to default
[1] + [2] Toggle 720x400 and 640x400 mode when input 720x400 or 640x400 mode
[1] + [▼] + [▲]
(Keep pushing 3 sec)
White Balance. (Not shown on user’s guide)
[1] + [▼] Power Lock
[1] + [▲] OSD Lock
[▲] Essential mode switch
Standard ->Text -> Cinema -> Game -> Portrait -> Scenery -> Vivid
[2] + [▲] Skin tone switch
Nature -> Reddish -> yellowish
[▼] +[▲] + [ ] Factory Mode
Remark : All the short cuts function are only available while OSD off

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Main Menu Controls
Auto Image Adjust*1
Contrast/Brightness*2*4
Input Select
Analog, Digital
Audio Adjust
Volume*
4, Mute*4
Color Adjust
SRGB, 9300K,7500K, 6500K(default), 5400,User Color [R, G, B]
Information [H Frequency, V Frequency, Resolution, Pixel Clock, Serial Number, Model Number,
[“www.ViewSonic.com” ]
Manual Image Adjust
Horizontal Size*1, H/V. Position*1, Fine Tune*1, Sharpness*3 , Opticolor [Standard, Text , Cinema, Game, Portrait,
Scenery, Vivid ],Opticolor Skin Tone[Nature, reddish ,yellowish]
Setup Menu
Language [English, French, German, Italian, Spanish, Finnish, Japanese, Simplified Chinese, Traditional Chinese],
Resolution Notice, OSD Position, OSD Timeout, OSD Background
Memory Recall
*1These functions are not available in Digital Mode
*2 These functions are not available under SRGB Mode, Opticolor On, and Opticolor Skin Tone On
*3 These functions are not available under Native Resolution Mode
*4 These functions setting can be recalled to default value by pressing [▼]+[▲]
[Remark] Please refer to the detail in the Appendix C
Function descriptions
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. If the user then tries to
access the OSD by pressing any of the buttons "1", "▼", "▲", "2" a message will appear on the screen for 3 seconds showing
"OSD Locked". The OSD lock will be deactivated by pressing the front panel control buttons "(1), & (▲)" again for 10
seconds.
Note1: When the OSD is locked will lock all functions, including “Volume” and “Mute”
Note 2: Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate “OSD Locked”
Note 3: OSD Lock should not lock Power Button and Power Lock function
Power Lock short cuts function for the buttons
The power button lock will be activated by pressing the front panel control buttons "(1), & (▼)" for 10 seconds. 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". It also
means that with the power button locked, the LCD would automatically turn back "On" when power is restored after a power

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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 button lock will be deactivated by pressing the front panel control buttons "(1), & (▼)" again
for 10 seconds.
Note 1: Status bar indicating Power Button lock or unlock is in progress and when complete it will indicate “Power Button
Locked”
Note 2: Power should only be lockable in the “On State”
Memory Recall Actions
Memory Recall action on the analog and digital mode as below
1. Set the factory defaults as shown in Section 4-8
2. Clean all the mode setting buffer
3. Execute Auto Image Adjust
Note: Memory Recall should have no effect for Language, Power Lock, User Color Settings or Input Priority
Resolution NoticeActions
1. Resolution Notice OSD should show on screen after changing to non-native mode for 30 sec
2. The OSD should disappear after 10 sec or by pushing button [1] or [2]
Resolution Notice function should be disabled when push button [2] under Resolution Notice OSD
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)
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
Input Priority
This function is defined the auto detect priority when the display has several inputs. Please refer to the detail flow chart as the
appendix D

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2.7AUDIO INTERFACE (SPEAKER SPECIFICATION)
Line input signal 1.0 Vrms @1kHz
Line input impedance 10 kOhm
Maximum Amp power output (Watt) 2 W (RL=4Ω)
Amp -THD < 10 % THD @1kHz
Speaker Power rating(Ω/Watt) 4Ω/2.5 W (TYP.) ; 4Ω/ 3 W (MAX)
Signal to Noise Ratio 72 dB
Frequency response Fo – 20kHz
SPL. 85 ± 3 dB (at 0.5m)
FO 300 Hz
Line input connection 3.5 mm stereo jacks
Vibration
There should be no audible vibration resonance at volume=100% &
treble / bass in def. Value
Screen image There should be no affect on the screen image stability under any
conditions
Connector PC99 requirement Audio in Lime Green pantone # 577C
Cable type / length 3.5mm stereo cable / 1.8m length
Audio DPMS
SPEAKERS STAY ON WHEN THE REST OF THE MONITOR IS IN
POWER SAVING
NOTE: THERE IS NO GUARANTEE <1 W AT POWER
CONSUMPTION IN ACTIVE OFF MODE, WHEN THE AUDIO
CABLE IS CONNECTED

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3. Front Panel Function Control Description
Use the buttons on the front control panel to display and adjust the OSD controls which display
on the screen. The OSD controls are explained at the top of the next page and are defined in
“Main Menu Controls” on page 10.
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 (T) /
OptiColor (S)
Displays the control screen for
the highlighted control.
Also toggles between two
controls on some screens.
Also a shortcut to Auto Image
Adjust.
Standby Power On/Off
Power light
Blue = ON
Orange = Power Saving
Displays the Main
Menu or exits the
control screen and
saves adjustments.
Adjusting the Screen Image

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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 setting, press the up Sor down Tbuttons.
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 command line at the bottom of the
control screen tells what to do next from
this screen. You can toggle between control
screens, adjust the selected option, or exit
the screen.

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Main Menu Controls
Adjust the menu items shown below by using the up Sand down Tbuttons.
Control Explanation
Auto Image Adjust sizes and centers the screen image automatically.
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 VX2235wm.
Audio Adjust
Volume increases the volume, decreases the volume, and mutes the audio.
Mute temporarily silences audio output.
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.

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Control Explanation
9300K-Adds blue to the screen image for cooler white (used in most office
settings with fluorescent lighting).
7500K - Adds blue to the screen image for cooler white (used in most office
settings with fluorescent lighting).
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

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Control Explanation
Horizontal Size adjusts the width of the screen image.
H./V. Position (Horizontal/Vertical Position) moves the screen image left or
right and up or down.
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.
OptiColor Mode provides an optimum display environment depending on the
contents displayed. It contains 7 user-selectable presets. These 7 presets are
easily accessible from the short cut keys.
Standard is for general windows environment and monitor default setting.
Text optimized for text editing and viewing in a word processing environment.
Cinema optimized for movie and video environment.
Game optimized for PC/TV game environment.
Portrait optimized for displaying indoor portraits and enhancing pictures.
Scenery optimized for displaying outdoor scenery images.
Vivid optimized for color luster and sharpness.
These 7 presets are carefully chosen by Viewsonic, but may not suit all users'
tastes. In that case, the user can either return to the Standard setting and
manually adjust the brightness and contrast as desired.
OptiColor Skin Tone includes 3 presets (Natural / Red Tone / Yellow Tone)
which user can select according to user's preference.