Canon REALiS SX80 지침 매뉴얼

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■You cannot operate the remote control.

Cause

Countermeasure

Batteries are not installed properly 
or they have run out.

Check whether batteries are installed correctly. If batteries 
are installed correctly, replace them with new batteries. (

You are operating the remote con-
trol from the outside of the remote 
control operating range.

Check whether you are operating the remote control within 
the remote control operating range. (

There is an obstacle between the 
projector and the remote control.

Remove the obstacle between the infrared remote receiver 
of the projector and the remote control or point the remote 
control to an obstacle-free path.

You are operating the remote con-
trol under an inappropriate operat-
ing environment.

Check whether the infrared remote receiver of the projector 
is exposed to direct sunlight or strong light of lighting appa-
ratus. (

)

The channel setting of the remote 
control does not match with the 
setting of the projector.

Check whether the channel setting of the remote control has 
been changed. You can check the [Remote control] setting 
in the [System settings] menu. (

The key lock function is prohibiting 
the remote control operation.

Check whether [Key lock] is enabled to disable the remote 
control operation.
In the System settings menu, set [Key lock] to [Off]. (

)