Optoma EX400 - Manual (Page 68)

68
English
Appendices
On Screen Messages
 Temperature warning:
 Fan failed:
 Lamp warning:
 Out of display range:
If the remote control does not work
 Check the operating angle of the remote control is within ±15°
both horizontally and vertically of one of the IR receivers on the
projector.
 Make sure there are not any obstructions between the remote
control and the projector. Move to within 7 m (±0°) of the projector.
 Make sure the batteries are inserted correctly.
 Replace batteries if they are exhausted.