5.5. Video projectors

Classrooms are equipped with video projectors. Projectors display the view from either teacher's computer or a laptop on a silver screen. Source for the view can be changed from a VGA-splitter located on the teacher's desk. More instruction below on using different splitters.

NOTE!

  • Starting a video projector might take several seconds.
  • Remember to select external video display by pressing the following combination on your laptop keyboard:
    Windows
    (bottom left-hand corner on your keyboard) + P
  • Projectors operate best when resolution is set to:
    1280 x 800
    This setting can not be locked down and therefore it has to be corrected manually if necessary:
    Right click mouse over the computer's desktop view > Screen resolution > Select the right setting from the drop-down menu.

See also section 5.4 Document cameras.

 

Splitters

 

Kramer

devices_projectors_1.png

 

Aten

  1. Normal presentation mode. Teacher's computer is set as the source to show on display and the view coming from the video projector.
    Selections on buttons 1 and 2 are green.

    devices_projectors_2.png

  2. Laptop presentation mode. A laptop connected with a VGA cable to the splitter, is set as the source.
    Selection on button 1 is orange and selection on button 2 is green.

    devices_projectors_3.png

 

4x2 HDMI

Output options:

devices_projectors_4.png

 

devices_projectors_5.png

Select a source for both outputs by clicking Output A / Output B buttons until the blue light is set for desired source:

  1. PC (teacher's computer)
  2. Document camera
  3. Laptop (or other external device)
  4. Empty (no source)

Examples:

  • PC is shown on display and both projectors (A and B):
    • Output A = 1
    • Output B = 1
  • PC is shown on display and projector A, and the document camera on projector B:
    • Output A = 1
    • Output B = 2
  • Document camera is shown on display and projector A, and a laptop on projector B:
    • Output A = 2
    • Output B = 3