Canon SX20 User Manual page 83

Cannot operate the remote control
Cause
Batteries are not installed properly or
they have run out.
You are operating the remote control
outside the remote control operating
range.
The operating environment of the
remote control is bad.
The remote control code does not
match the projector setting.
"Key lock" is turned on to disable
remote control operation.
Cannot operate the wireless mouse
Cause
The USB cable is not connected prop-
erly.
A mouse driver is not installed.
The mouse is not recognized due to a
computer problem.
The CE Mark is a Directive conformity mark of the European Community (EC).
Check whether batteries are installed properly. If batteries
are installed properly, replace them with one batteries.
(P17)
Check whether you are operating the remote control within
the remote control operating range.
Also check whether there is any obstacle between the
infrared remote receiver of the projector and the remote
control. (P16)
Check whether the infrared remote receiver of the projec-
tor is exposed to direct sunlight or strong light of lighting
apparatus. (P16)
Check whether the remote control code has been
changed.
You can confirm the "Remote control" setting in the Sys-
tem settings menu. (P72)
Check whether "Key lock" is turned on to disable remote
control operation.
In the System settings menu, set "Key lock" to "Off." (P71)
Check whether the USB cable is properly connected
between the projector and computer. (P41)
Check whether the mouse can be used on the computer
side. If it cannot be used, install a mouse driver in the com-
puter.
Turn on the projector and computer in this order again.
This symbol on the nameplate means the product is Listed by
Underwriters Laboratories Inc. It is designed and manufactured to
meet rigid U.L. safety standards against risk of fire, casualty and
electrical hazards.
Countermeasure
Countermeasure
83