ViewSonic Vx2235wm 5 Service Manual

ViewSonic Corporation Confidential - Do Not Copy    VX2235wm-1 
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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...

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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...

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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...

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failure. If the power button is not in the locked mode, then powe r should return to its previous state when power is restored 
after a power failure. The power button lo ck 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...

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2.7 AUDIO INTERFACE (SPEAKER SPECIFICATION) 
Line input signal  1.0 Vrms @1kHz 
Line input impedance  10 kOhm 
Maximum Amp power output (Watt)  2 W (RL=4
Ω) 
Amp -THD  < 10 % THD @1kHz 
Speaker Power rating( Ω/Watt)  4
Ω /2.5 W (TYP.)  ;  4 Ω/ 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...

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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...

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Do the following to ad
just 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, press SorT to scroll up or down in the Main Menu.
3. After the desired control is se lected, press button [2]. A cont rol screen like the one...

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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  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 ha ve more than one computer...

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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 fo r 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...

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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 te xt 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...