DVN-4002: How do I calibrate?

The steps below illustrate the calibration process described in the DVN-4002 Series Calibration Quick Guide, DD3716797 and Send Box and LEDVision Manual. Please consult Tracking DVN-4002 Tile Replacements Process, DD3682374 for instruction on how to track replacement modules and tiles.

Considerations

• Feel free to export and save as much as you want throughout the calibration process.
• Ensure that all bad PCBs/tiles are changed, and seams are worked out before proceeding.
• Before starting calibration, ensure you are connected to the send box with a USB and DVI cable to the computer you are using to run LEDVision.

1. After completing the above, go into your screen resolution settings and change the screen resolution to 1920x1080 to extend the display to another monitor.
   • Take note of what your screen monitor width is set to. You will use this in Step 3.
     
2. Open LEDVision and select Screen Control, located in the Control tab.
   
3. Under LED Screen Window Management, set your X to the width of your screen monitor (captured earlier) and set the width and height to the size of the display or zone that the send box is running. Click Apply.
   • Note: The X value will be 1920 and the Y value will be 0 in order to get the image from the extended second monitor.
     
4. You should see that the Screen Management window fits in your display/zone.
   • If done correctly, you should see LED1 in all four corners.
     
5. Go into LED Screen Settings, and enter Admin Password "168".
   
6. Open the Screen Parameters tab and click Advanced Settings.
   
7. Verify that the calibration mode is set to Brightness and that calibration is set to From Receiver Cards.
    
8. Exit out of settings window and then exit from screen management window to return to main LEDVision screen.
9. Once at main screen, click Control, By Point Calibration, and then enter "168" when prompted for Admin Password.
   
10. Click Getting Screen Information.
    
11. Ensure that Port drop down menus is set to All Ports and that the Receiver drop down menu is set to All Cards.
    
12. Verify that the Calibrations Settings are set to Enable the Brightness of the Receiver Card.
    
13. Click Read and then select From Receiver Card.
    • Note: The read will take some time to complete as the send box is reading every receiver card in the display, so be patient.
      
14. Export and save as Pre-calibration files.
15. Change Calibration Setting to Enable Simulation by PC by clicking on the Modify button under calibration settings.
    • Note: You must complete this step, otherwise you will not see any changes in calibrating when you start.
      
16. Select White under Screen Display. This should break down the screen into a point by point display and the entire display should turn white.
    • If it is not point by point or the screen does not turn all white, check that your resolutions (set previously) are correct and that the output of your computer is not scaling.
      
17. Click Edit Mode and then By Receiver Card.
    
18. Click on Module under Select Mode and change the width and height to the size of the module/PCBs/tile.
    
19. Using your mouse, click on the individual PCB/tile you replaced.
    • You will need to break down the module file into PCBs before advancing to the next step.
20. Upload the correct calibration files that you broke down to the spares by right-clicking on the PCB you changed in the grid, and then clicking Import By Module and Normal.
    • Modules/PCBs/tiles that need to have the calibration files uploaded can normally be spotted because they look grainy and not smooth compared to other modules/PCBs/tiles.
    • Once you have clicked Okay after the file has loaded, the PCB/tile will no longer be grainy, but may be brighter or dimmer than the rest of the display.
    • Continue right-clicking and importing calibration for every module/PCB/tile replaced.
    • Once you have completed this, proceed to Step 21.
      
21. You will now need to adjust the color calibration. There are two parts that need to be aligned.
    • The screen display setting only controls the color for the display.
    • The tab on the top right is what color you are actually controlling.
    • These two settings must be the same or you won't see any changes in the module/PCB/tile you are calibrating.
      • Example: If you have red selected under display controls, and the tab on the upper right is green, you will be adjusting green on the selected module. You will notice that the red on the display/module/tile will not change color; however, if you select green under the display controls, you will notice that the color has changed.
        
22. Select a color, ensure that settings match, and then click on each of the module/PCB/tiles that need to be calibrated.
    • To brighten, click on the + button.
    • To dim, click on the - button.
      
23. Once you are complete, proceed to adjusting for seams.
24. To adjust seams, navigate to Edit Mode->Seam and select White under screen display. Go through the entire display, adjust seams by selecting the seam you want on the grid and use the + and - buttons to raise/decrease brightness. 
    
25. Once completed, click Apply Coefficients and Save.
26. Change Calibration Setting back to By Receiver Card.
    • Note: You will see the display return to how it looked before you started, this is a temporary step in the process.
27. Click Send to send to receiver card.
    • Note: This will take some time.
28. Once send is complete, click OK and the screen will then show calibration adjustments.
29. Navigate to Edit Mode->By Point and save again by Export->All->Save as Final Calibration.
    • You can now delete the files you have saved throughout the process.