Hitachi CP-AW250NM Operating Manual page 8

Safety Precautions (continued)
NOTE
About consumables.
Lamp, LCD panels, polarizors and other optical components, and air filter and cooling fans
have a different lifetime in each. These parts may need to be replaced after a long usage
time.
• This product isn't designed for continuous use of long time. In the case of continuous use
for 6 hours or more, or use for 6 hours or more every day (even if it isn't continuous), or
repetitious use, the lifetime may be shortened, and these parts may need to be replaced
even if one year has not passed since the beginning of using.
• Any inclining use beyond the adjustment range explained in these user's manuals may
shorten the lifetimes of the consumables.
Before turning on the power, make the projector cool down adequately.
After turning the projector off, pushing the restart switch or interrupting of the power supply,
make the projector cool down adequately. Operation in a high temperature state of the
projector causes a damage of the electrode and un-lighting of the lamp.
Avoid strong rays.
Any strong ray (such as direct rays of the sun or room lighting) onto the remote control
sensors could invalidate the remote control.
Avoid radio interference.
Any interfering radiation could cause disordered image or noises.
• Avoid radio generator such as a mobile telephone, transceiver, etc. around the projector.
About displaying characteristic.
The display condition of the projector (such as color, contrast, etc.) depends on
characteristic of the screen, because the projector uses a liquid crystal display panel. The
display condition can differ from the display of CRT.
• Do not use a polarized screen. It can cause red image.
Turn the power on/off in right order.
To prevent any trouble, turn on/off the projector in right order mentioned below unless
specifying.
• Power on the projector before the computer or video tape recorder.
• Power off the projector after the computer or video tape recorder.
Take care not to fatigue your eyes.
Rest the eyes periodically.
Set the sound volume at a suitable level to avoid bothering other people.
• It is better to keep the volume level low and close the windows at night to protect the
neighborhood environment.
Connecting with notebook computer
When connecting with notebook computer, set to valid the RGB external image output
(setting CRT display or simultaneous display of LCD and CRT).
Please read instruction manual of the notebook for more information.
7