Video Troubleshooting 101

General troubleshooting

  • Confirm that the source is connected to the proper video cable.
  • Confirm that the source has power and is turned on. 
  • Confirm that the corresponding source is selected on the Crestron Touch panel. 

Wired Video

VGA cable  

  • Confirm that VGA source is selected at the Crestron touch panel. 
  • Visually inspect the 15 pin VGA cable to see if any pins are bent. Firmly seat the VGA cable into source device. 
  • Confirm that VGA source is set to output to external display. See "Mirroring Your Laptop's Display with Classroom AV Systems". 

Mini DisplayPort/HDMI

                 

  • Confirm that the correct video source (HDMI or Mini DisplayPort) is selected at the Crestron touch panel.   
  • Confirm that the desired source is connected with the proper cable and that the other end of the cable is either connected to the correct processor input or lectern input.

BluRay/DVD

  • Confirm that BluRay is selected at touch panel. 
  • Visually inspect disk to make sure it is neither dirty nor scratched. 

Document Camera

  • Confirm that Document Camera power is connected in at both ends, and the camera's power status light either Green (ON) or Orange (standby).
  • Confirm that a VGA or HDMI cable is firmly connected to the Display Out port on the document camera.

Wireless Video 

Other items to check

  • Confirm that the display projector/TV has power and set to correct input. Legacy projectors input is DVI and new projectors use HDMI input.  
  • If the projector displays flashing error lights, it may be overheated, in which case try power cycling the projector:
    • Shut down system then flip power switch on projector to "Off"
    • Pull cord to power and wait 60 seconds.
    • Plug power cable back and flip power switch to "On".
  • Reset the Crestron processor. See "Resetting a Crestron DMPS-300-C Processor"
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