HITACHI CPX990W
Manual de Servicio

Air Filters
Cleaning the Air filters This projector uses 2 air filters. These air filters should be cleaned as described below at intervals of approximately 100 hours. 1. Switch the projector power supply OFF, and remove the power cord from the power outlet. 2. Remove the filter cover and the air filter. 3. Clean the air filter with a vacuum cleaner. 4. Set the air filter and the filter cover.

filter cover

filters
Replacing the Air filter Replace the air filter if contamination cannot be removed, or if it is damaged. 1. Switch the projector power supply OFF, and remove the power cord from the power outlet. 2. Remove the filter cover and the old filter. 3. Set the new filter and filter cover. CAUTION Switch power OFF and remove the power cord from the power outlet before beginning maintenance work. Please read the separate �SAFETY INSTRUCTIONS� thoroughly to ensure that maintenance is performed correctly. Replace the air filter if contamination cannot be removed, or if it is damaged. Contact your dealer in such case.(Option Air filter : MN04531) Do not use the equipment with the air filter removed. When the air filter is clogged with dust etc. the power supply is switched OFF automatically to prevent the temperature rising inside the projector.

High-altitude Operation Mode
When using the unit in low atmospheric pressure areas, you can boost the fan speed to increase cooling efficiency. 1. While video is being displayed, press the MENU button on the remote control, and, while OPT item in the menu stays selected, press and hold down the MAGNIFY OFF button for 3 seconds. 2. The FAN SPEED Switch menu is displayed. Set up the fan speed by selecting NORMAL/HIGH. *When you want to change the setting again, repeat the same procedure.

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