Hitachi CP X450 User Manual - Page 56

Maintenance Cleaning and replacing the air filter The air filter unit of this projector consists of a filter cover, two kinds of filters, and a filter frame. The new double large filters system is expected to function longer. However, please check and clean it periodically to keep ventilation needed for normal operation of the projector. When the indicators or a message prompts you to clean the air filter, comply with it as soon as possible. Replace the filters when they are damaged or too soiled. To prepare new filters, contact to your dealer and tell the following type number. Type number : MU05611 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. 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, to take the filter unit off. 4. Use a vacuum cleaner for the filter vent of the projector and both sides of the filter unit. If the filters are damaged or too soiled, replace them according to the following procedure number 5 to 7. Otherwise, please jump to the procedure number 8. 5. Pull the filter frame's knob up while holding the filter cover to remove the filter frame, then take the filters out. 6. Set new filters where former filters were. Put the larger meshed filter into a filter cover first. Then put the finer meshed filter on the larger meshed one. 7. Put the filter frame back where it was. Filter cover Filter cover knobs Filter unit Filter frame Filter (finer meshed) 8. Put the filter unit back into the projector. Filter (larger meshed) (continued on next page) 56 Filter cover