ViewSonic Va1916w2 Service Manual

 
 
ViewSonic VA1916w 
Model No.  VS11755 
19” Color TFT LCD Display 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(Manufacture date: Dec. 2008) 
 Service Manual  

 1 Copyright 
Copyright © 2008 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...

 2 TABLE OF CONTENTS 
 
1. Precautions and Safety Notices..........................................................................................3 
2. Specification .......................................................................................................................5 
3. Front Panel Function Control Description .......................................................................7 
4. Circuit...

 3 1. Precautions and Safety Notices  Precautions and safety notices          
1.1  safety precautions 
This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper use 
or installation may cause damage to the monitor as well as the user. Carefully go over the following WARNINGS 
before installing and keep this guide handy. 
  
1.2  WARNINGS   This monitor should be operated only at the correct power sources indicated on the label on the rear end of...

 4 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 and that 
may cause “ MURA “  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 Take out the monitor from carton. 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 and 
that could scratch the...

 5 2. Specification 2.1 Product specifications 
Product Name VA1916w Oracle P/N VA1916W-10  Model Number VS11755 OSD Languages: 11  English, French, German, Italian, Spanish, 
Finnish, Japanese, Russian Simplified Chinese, 
Traditional Chinese, Korean TFT LCD Panel and Model # 1st
 panel: CMO A190A2 Scalar RTD 2554VH Input Signal Analog x1  Sync Compatibility Separate Sync  Adapter Internal Power Board Power Cable Yes, 
refer to APPENDIX B: Power Cable Analog Cable (1.8 m, black), with PC 2001 and Hot...

 6 2.2 Interface description 15
6
10
1115
 
Video Connector Pin Assignment 
 
A -1.15 pin D-sub connector pin assignment 
Pin Number Pin Function 1 Red video input 2 Green video input 3 Blue video input 4 No Connection 5 Ground 6 Red video ground 7 Green video ground 8 Blue video ground 9 +5V 10 H/V sync ground 11 No connection 12 (SDA) 13 Horizontal sync (Composite sync) 14 Vertical sync 15 (SCL)  
  

 7 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” 
 
 
 
Main Menu 
with OSD controls 
 
 
 
 
Front Control Panel 
shown below in detail 
 
 
 
 
 
 
 
 
Displays the control screen 
for the highlighted control. 
Also toggles between two 
controls on some screens. 
Also a shortcut to Auto 
Image...

 8  
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, pressorto 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. 
The line at the...

 9  
Main Menu Controls 
Adjust the menu items shown below by using the up  and down  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...