Optoma EH7700 User Guide - Page 59

On Screen Messages, If the remote control does not work

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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.  Ensure that you have set your remote to the correct IR code set (see page 24). 59 English

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59
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.
Ensure that you have set your remote to the correct IR code set
(see page 24).