Question
I am having issues with the projection system in the classroom, what can I do?
Answer
Expand the panels in this article for various classroom projection system troubleshooting steps.
Helpful Tips:
- Always test technology and media before attempting to use it during a live class
- Log off or restart the classroom PC when you have finished using the equipment — do not shut down
- Do not leave a projector in Display Mute mode when you leave the room
- Power-down the projection system when you have finished using the equipment
- If you need immediate help, call Classroom Technology Support at 419-372-9400
Control Panel: No Display or Unresponsive
- Tap the center of the touch screen to wake.
- If the panel does not respond, or the touch panel has lost connection with the controller, please call Classroom Technology Support at 419-372-9400.
Projector: Does Not Project when HDMI Source is Selected
- Disconnect and reconnect the HDMI cable.
- Set computer resolution to 1920x1080.
- Duplicate or mirror your display.
- Try a different HDMI cable or adapter.
Projector: Blank Screen or No Signal
- Check the control panel:
- Select correct input (PC, HDMI, Doc Cam).
- Press the Display Mute button to toggle on/off.
- Check the Classroom PC:
- Wake the PC by moving the mouse or pressing keys on the keyboard.
- Verify the PC is on; PC is either located behind the monitor, in the wall AV cabinet, or in the Enook.
- Check the document camera:
- Press and hold the Power button — the light should turn blue when powered on.
- Check the laptop or other device:
- Disconnect and reconnect the HDMI cable.
- Restart the device with the HDMI cable connected.
- Adjust your device's display resolution to be 1920 x 1080 or lower.
Multiple Projectors: Blank Screen or No Signal
If you still have an issue with any projector in the room after checking items 2, 3, and 4 above, try the following:
- Check the power state (on or off) of each projector — all projectors should power on with the system by default.
- If any ceiling-mounted projectors have no signal or are powered off (status light on projector is red), enter the Help menu on the touch panel, then press Displays On.
- If all else fails, turn the AV system off from the control panel, wait 30-60 seconds and turn the system back on. This should return all settings to their defaults.
Sound: No Audio
- Check the control panel:
- Press and hold the Volume Up button while audio is playing.
- Check the Classroom PC:
- Verify the sound is not muted or turned down on the computer itself.
- Verify Extron HDMI is set as the audio output in the audio settings.
- Check the laptop or other device.
- HDMI: In the control panel or system preferences on your device, choose Extron HDMI for your audio output.
For additional assistance, please contact Information Technology Services at 419-372-0999 or through chat.