Overhead projector

Most teaching rooms have an overhead projector for displaying transparencies. All overhead projectors installed have dual lamp facility with a 'quick change' lever/control to let the user to switch to the 'spare' lamp should one lamp fail during the course of their teaching session. 

To use the projector

  • Press the power button to turn on the lamp and direct image to the screen.
  • Place transparency on glass plate and adjust focus using the knob on the lens column.

Changing the lamp

The overhead projector contains two lamps-if the primary lamp fails, switch to the alternate lamp using the lamp changeover lever.

Colour tuning dial

Some OHP models have a colour tuning dial. This will eliminate blue or brown corners if seen on the screen.


Training on equipment in rooms can be arranged at any time.

For assistance

Assistance is available by calling 54321 option 1, 1 and ask for AV assistance.