Optoma EP721 User Manual
46
English
Appendices
Remote Control Problems
If the remote control does not work
Check the operating angle for the remote control is approximately
±22.5°.
Make sure there are no obstructions between the remote
control and the projector. Move to within 6 m (20 ft) of the
projector.
Make sure the batteries are inserted correctly.
Replace weak batteries in the remote control.