Remote Control Problems - Optoma HD81 User Manual

Appendices
Projector side don't
have IR receiver.
IR receiver are only on
front of Box side and IR
Module.
58
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RS232 connection fail:

Replacing the lamp:


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 not any obstructions between the remote con-

trol and the HD81's Box. Move to within 6 m (20 ft) of the HD81's
Box.
Make sure batteries are inserted correctly.

Make sure batteries are exhausted. If so, replace weak batteries in

the remote control.