The PRM-32 projector supports a 4:3 aspect ratio, and can be used on 78" ActivBoards.

This document identifies the correct aspect ratio for each ActivBoard, and the different variants of screen resolution that can be used natively with the projector, as well as information on how to adjust your projector to display the correct image.

List of ActivBoards and Aspect Ratios:

  • AB95” - 16:9 (Widescreen)
  • AB87” - 16:10 (Widescreen)
  • AB78” - 4:3
  • AB64” - 4:3
4:3 Aspect Ratio16:9 Aspect Ratio16:10 Aspect Ratio
320 x 240852 x 480320 x 200
640 x 4801280 x 720640 x 400
800 x 6001365 x 7681280 x 800
1024 x 7681600 x 9001440 x 900
1152 x 8641920 x 10801680 x 1050
1280 x 960 1920 x 1200
1400 x 1050 2560 x 1600
1600 x 1200 3840 x 2400
2048 x 1536 7680 x 4800
3200 x 2400  
4000 x 3000  
6400 x 4800  

This document will show how to set up the image correctly on a 78" ActivBoard. We assume that the projector has been installed correctly and tested by the system installer.

Before starting please ensure your computer is set to one of the resolutions listed above in accordance with your ActivBoard size.

When using a 64” / 78” ActivBoard

  • Press the Menu button on the remote control.
  • Using the right arrow key navigate to the Installation I screen.
  • Now press the down arrow key so that Aspect Ratio is highlighted.
  • Press Select.
  • Press the right arrow key to change the setting to the 4:3 aspect ratio.