• The NEC projector in 419 is fed by an auto-sensing VGA switch located underneath the instructors desk. 
  • The output of this VGA switch is connected to the Computer 1 input on the projector.
  • If projector is used in its typical fashion, which is to display the image from the 2nd monitor connected to the instructor workstation, the only thing that you may have to change to resolve issues is to make sure that Computer 1 is selected as the source using the projectors remote.

Troubleshooting Steps:

  • Verify that the second monitor and the projector are both turned on.
  • Make sure that Computer 1 is selected as the source on the projector.
  • If the projector screen is still blue and the second monitor does not have an image, Restart the Instructor computer.
  • Once on the login screen you should see an image on the projector but you may not see the image on the second monitor until you are fully logged onto the workstation and the Mac desktop is on the screen.



If you are planning to use a laptop, skype phone, or some other external device with a VGA output connection, you will need to connect the devices using the spare VGA cable located on the instructors desk labeled LAPTOP.

  • Once the LAPTOP VGA cable is connected to the device, the auto-sensing switch should recognize that a new connection has been made and automatically switch over.  The projector will then display the image of your external device.
  • If, for some reason, the auto-sensing switch does not automatically switch over you may need to power down your external device and start it back up with the LAPTOP VGA cable connected.
  • Also, if you are using a laptop, make sure that you have configured the laptop to display via the laptops VGA output.  This is typically done by holding down the Function key and pressing F5 to toggle through the various display options.  (note: every laptop is different so F5 may not be the display function button)

***Check with Daniel or Stacy for assistance connecting external devices that do not have a VGA output.  We may have adapters to help facilitate other types of display ports.***




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