Hitachi CPX400 User Manual - Page 53

Maintenance Air filter Please check and clean the air filter periodically. When the indicators or a message prompts you to clean the air filter, comply with it as soon as possible. Replace the air filter when it is damaged or too soiled. To prepare a new air filter, contact your dealer and tell the air filter type number. Type number : MU04951 When you replace the lamp, please replace the air filter. An air filter of specified type will come together with a replacement lamp for this projector. Cleaning the air filter 1. Turn the projector off, and unplug the power cord. Allow the projector to sufficiently cool down. 2. Use a vacuum cleaner on and around the filter cover. 3. Pull the filter cover knobs while lifting it. The filter unit which consists of the filter' cover, air filter and filter frame will come off. 4. Use a vacuum cleaner for the filter vent of the projector and the filter frame side of the filter unit. If the air filter is damaged or too soiled, replace it according to the following procedure number 5 to 7. Otherwise, please jump to the procedure number 8. 5. Pull the filter frame' knob up while holding the filter cover. The filter frame will come off and the air filter will appear. 6. Replace the air filter with new one. 7. Put the filter frame back. 8. Put the filter unit back into the projector. Filter cover Filter cover knobs Filter unit Filter frame Air filter 9. Turn the projector on and reset the filter time using the FILTER TIME item in the EASY MENU. Filter cover (1) Press the MENU button to display a menu. (2) Point at the "FILTER TIME" using the ▼/▲ button, then press the ► button. A dialog will appear. (3) Press the ▲ button to select "RESET" on the dialog. It performs resetting the filter time. WARNING ►Before taking care of the air filter, make sure the power cable is not plugged in, then allow the projector to cool sufficiently. ►Use only the air filter of the specified type. Do not use the projector without the air filter or the filter cover. It could result in a fire or malfunction to the projector. ►Clean the air filter periodically. If the air filter becomes clogged by dust or the like, internal temperatures rise and could cause a fire, a burn or malfunction to the projector. NOTE • Please reset the filter time only when you have cleaned or replaced the air filter, for a suitable indication about the air filter. • The projector may display the message such as "CHECK THE AIR FLOW" or turn off the projector, to prevent the internal heat level rising. 53