Other Problems; Remote Control Problems - Acer U5530 User Manual

Appendices
76
English

Other Problems

The projector stops responding to all controls
` If possible, turn off the projector, then unplug the power cord
and wait at least 20 seconds before reconnecting power.
Lamp burns out or makes a popping sound
` When the lamp reaches its end of life, it will burn out and may
make a loud popping sound. If this happens, the projector
will not turn on until the lamp module has been replaced. To
replace the lamp, follow the procedures in the "Replacing the
Lamp" section.

Remote Control Problems

If the remote control does not work
` Check the operating angle of the remote control is within ±15°
both horizontally and vertically of on of the IR receivers on the
projector.
` Make sure there are not any obstructions between the remote
control and the projector. Move to within 6 m (20 ft) of the
projector.
` Make sure batteries are inserted correctly.
` Replace batteries if they are exhausted.