ViewSonic Vx2235wm 5 Service Manual

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Control Explanation
Setup Menu displays the menu shown below:
Language  Select allows the user to choose th e language used in the menus and 
control screens.
Resolution Notice  allows the user to enable or disable this notice.
If you enable the Resolution Notice show n above and your computer is set at a 
resolution other than 1680 x 1050,  the following screen appears.
OSD Position  allows the user to move the OSD menus and control...

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4. Circuit Description 
1.RTD 2553V 
Realtek RTD2553V series products are all-in-one LCD m onitor controllers supporting UXGA / WSXGA+ / WXGA+ / SXGA 
(optional), and integrate Realtek high performance ADC, TMDS Rx(optional),scaling engine, OSD engine, LVDS Tx,    RSDS 
Tx and so on. Moreover, all products are pin compatible in QFP128-pin package to save cost and make the design easier. 
 
 
 
2. RTD2120 
This chip is the...

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5. Adjustment Procedure 
A. Function Test and Alignment Procedure 
1. All Modes Reset 
You should do “All Model Reset” (Refer to Chap 3. Hot Ke ys for Function Controls) first. This action will allow 
you to erase all end-user’s settings and restore the factory defaults. 
  2. Auto  Image Adjust   The Auto Adjust is aimed to offer a  best screen quality by built-in ASIC.  For optimum screen quality, the user 
has to adjust each...

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10. Black Box 
Test Signal: 1280*1024@60Hz
 
Test Pattern:   
 
Window standard pattern 
Inspection Item: Bright Dot, Line Defect & Power 
  11. RED 
Test Signal: 1280*1024@60Hz
 
Test Pattern:   
 
Full Screen Red   
Inspection Item: Bright Dot,  Partial & Line Defect 
 
12. Green 
Test Signal: 1280*1024@60Hz
 
Test Pattern:   
 
Full Screen Green 
Inspection Item: Bright Dot,  Partial & Line Defect 
  13. Blue 
Test Signal:...

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Figure 1  Figure 2 
  
Figure 3  Figure 4 
  
Figure 5  Figure 6 
 
 
Figure 7  Figure 8 
 
  
   

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B  BIOS update procedure 
 
1. To setup ISP environment 
 
 
Hardware: 
PC or Notebook , Parallel(Prin ter) cable , ISP tool( Fig 1) 
 
Software: 
ISP driver .  
If the O.S. was Win2000 or Win XP please have to install
 
 
 
 
 
 
  PORT95NT.exe 
 
 
 
 
 
 
Fig1 
 
 
In order to ensure can execute ISP program,  please set BIOS in PC or Notebook as Fig 2 
  

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Fig 2 
  

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2.
 Install ISP 
 
 
2.1 User could download ISP driver and PORT95NT install file from Myson Century website( //www.myson.com.tw ) 
2.2 After extracting the zip file, the total files list as Fig  2.2, and double click the file of setup.exe to install. 
 
Fig 2.2 
 
 
2.3 Press  “Next ＂  button to continue., see Fig 2.3 
 
Fig 2.3 
  

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2.4 Keep default setting or press  “Change ＂  button for selecting the path that you want , and then press “Next ＂button to 
continue, see Fig 2.4. 
 
 
2.5 Press  “Install ＂  button to continue, see Fig 2.5 
 
Fig 2.5 
 
Fig24 

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2.6 The Installer Information shows package warning, press  “Ignore ＂  button to continue, see Fig 2.6. 
 
Fig 2.6 
 
2.7 Installation has finished, press  “Finish ＂  button, see Fig 2.7. 
 
Fig 2.7