ClassTech / Connect an auxiliary input device


  • To provide instruction on connecting an auxiliary input device for use as part of a classroom technology package

User & Environment

  • Faculty, Instructor, Student
  • Classroom


  • Auxiliary audio input device
  • Auxiliary video input device
  • Standard technology package


  1. Locate the cable connectors, under the control panel

    Image of teacher's station with control panel and cable connectors indicated
  2. Auxiliary audio: To use audio only, connect the 3.5 mm audio cable—labeled iPod—to your device headphone port
  3. Auxiliary video: Connect your device with either HDMI (preferred) or VGA—do NOT connect both at the same time
    Note for VGA only: For sound, connect the attached 3.5 mm audio cable to your device headphone port 

    image of VGA cable connector (left) and HDMI cable connector (right)
  4. With the projection system on, press Aux HDMI on the control panel

    image of control panel with Aux HDMI button indicated
  5. On the control panel, press Aux VIDEO (for VGA) or HDMI, depending on the type cable you plugged into your device


Troubleshooting: Blank Screen or No Signal

  • Restart Device: Power cycle your device with the display cable still connected
  • Toggle Picture Mute: Press the PICTURE MUTE button on the control panel

    Image of control panel with the Picture Mute button indicated



  • This room includes both VGA and HDMI video inputs, and a 3.5 mm audio cable
  • Certain devices may require adapters, which are not provided
  • iPod audio will work regardless of which input source is selected on the control panel; however, the projector must display something for sound to work in this room
  • Power-down the projection system when you are finished using the equipment
  • Something not working? Our general troubleshooting guide for a projection system lists all the little things you should check before you panic
  • If you need immediate help, locate the phone in the room, dial 9-7900, and then press 9



Article ID: 18418
Tue 11/15/16 2:06 PM
Tue 9/21/21 7:03 AM
Supported Office or Community
University Community of Students, Staff, and Faculty