ViewSonic Va1916w2 Service Manual

							 10  
Control Explanation 
 
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 1440 x 900 @ 60Hz (recommended) means that the resolution is 
1440 x 900 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. 
 
Aspect ratio Selects the image size for 4:3 and full screen. 
 
ECO Mode provides the lower power consumption by reducing the brightness. 
Standard: The default brightness setting 
Optimize: Decreases the brightness by 25 % 
Conserve: Decreases the brightness by 50 % 
NOTE: When the ECO Mode is set to Optimize or Conserve, the 
Brightness, Contrast, and Dynamic Contrast cannot be adjusted. 
 
   
						

							 11  
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.  
						

							 14 4. Circuit Description   
 
  
						

							 15 5. Adjustment Procedure  
1. All Modes Reset 
You should do “All Model Reset” (Refer to Chap 3. Hot Keys 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 function manually. 
A.Turn the computer and LCD monitor on. 
B. Press the ‘Auto’ button on monitor keypad to Auto Adjust. 
C. The LCD monitor will start the Auto Adjust process automatically and run for 10 
consecutive seconds, during which time you will notice the image change. 
3. Firmware 
Test Patten: Burn in Model (Refer to Chap3. Hot Keys for Function Control) 
-Make sure the F/W is the latest version. 
 
4. DCC 
Test Patten: EDID program 
-Make sure it can pass test program. 
 
5. Window Shut Down 
Test Signal: 1280*1024@60Hz 
Test Pattern:  
 
  
 
Checkered Pattern Every One Pixel (50%Green & 50%Blue) 
Inspection Item: Flicker, Mura 
 
6. Window BG 
Test Signal: 1280*1024@60Hz 
Test Pattern:  
 
 
 
Window standard pattern 
Inspection Item: Line Defect, Function Defect & Mura 
  
						

							 16 7. 25 Gray 
Test Signal: 1280*1024@60Hz 
Test Pattern:  
 
 
 
Full Screen 25% White (Gray) 
Inspection Item: Particle, Line Defect & Mura 
 
8. 50 Gray 
Test Signal: 1280*1024@60Hz 
Test Pattern:  
 
 
Full Screen 50% White (Gray) 
Inspection Item: Bright Dot, Particle, Line Defect & Mura 
 
9. White Box 
Test Signal: 1280*1024@60Hz 
Test Pattern:  
 
 
Window standard pattern 
Inspection Item: Particle, Line Defect, Power, Image Remain & Mura 
 
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  
						

							 17  
12. Green 
Test Signal: 1280*1024@60Hz 
Test Pattern:  
 
 
 
Full Screen Green 
Inspection Item: Bright Dot, Partial & Line Defect 
 
13. Blue 
Test Signal: 1280*1024@60Hz 
Test Pattern:  
 
 
 
Full Screen Green 
Inspection Item: Bright Dot, Partial & Line Defect 
 
 
14. Gray_Scale_0-100_V64 
Test Signal: 1280*1024@60Hz 
Test Pattern:  
 
 
Vertical 64 (256) Gray Scale (Right → Left，From 0 to 100% White) 
Inspection Item: Line Defect & Function Defect  
15. Function Test Display pattern 
 
Item Pattern Description Remark 1 Gray_Scale_0-100_V Vertical 64 (256) Gray Scale (右→左，From 0 to 100% White) Figure 1 2 Gray_Scale_0-100_H Horizontal 64 (256) Gray Scale (上→下，From 0 to 100% White) Figure 2 3 Black Full Screen Black Figure 3 4 Red Full Screen 50% Red Figure 4 5 Green Full Screen 50% Green Figure 5 6 Blue Full Screen 50% Blue Figure6 7 White Full Screen White Figure7 8 Black_Tile Black Tile Under White Background Figure 8   
						

							 18  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
                 Figure 1 Figure 2 
Figure 5 Figure 4   
Figure 6  Figure 3 
Figure 5  
						

							 19  
 
 
Factory Defaults 
Item Defaults Item Defaults Contrast 70%  Input Priority N/A Brightness 100% Resolution Notice On Color Temperature 6500K Volume N/A 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  ON ECO Mode  Standard Aspect Ratio Full screen  
RTD2120 ISP user flow 
 
Software : RTD ISP Ver3.0  
 
 
 
 
 
    Hardware : Print to D-Sub and DVI-D Converter 
 
 
 
 
 
 
 
  Figure 8  Figure 7  
						

							 20     Step 1. Update BIOS Flow： 
                         Execute ISP.exe  
 
 
 
 
 
 
 
 
 
Step2. 
 
Click【64K】, Select the first file name xxxxxxxxxx_1.hex and  
Click【64~96】, Select the second file name xxxxxxxx_2.hex  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Step 3. 
Select【Both】and 【Auto】.  
 
 
 
 
 
 
 
 
 
  
						

							 21  
Step 4. Click                           then appear below condition.