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Re: my hitachi cpx201 projector says to check the air...
Hi There Teacher! the air filter unclips on the left hand side, lens facing out. after vacumming out the filter see below for filter reset counter procedure Good Luck! Turn the projector on and reset the filter time using the FILTER TIME item inthe EASY MENU. Before taking care of the air filter, make sure the power switchis off and the power cable is not plugged in, then allow the projector to coolsufficiently. Taking care of the air filter in a high temperature state of the projectorcould cause an electric shock, a burn or malfunction to the projector. Use only the air filter of the specified type. Do not use the projector without theair 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 thelike, internal temperatures rise and could cause a fire, a burn or malfunction tothe projector.WARNING Please replace the air filter when it is damaged or too soiled. When you replace the projection lamp, please replace the air filter. An air filterof specified type will come together with a replacement lamp for this projector. Please reset the filter time only when you have cleaned or replaced the airfilter, for a suitable indication about the air filter. The projector may display the message such as ?gCHECK THE AIR FLOW?h orturn off the projector, to prevent the internal heat level rising.NOTE(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 resettingthe filter time.
Testimonial: "Thank you very much! My projector is back on track. You saved me. My students and I are very happy!"
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Open the cover. At some ends there will be 'filters', to clean the air entering the projector. If these filters are blocked with dust or lint, air flow will be blocked.
Clean any dust from these filters. Close the cover and check whether your problem is solved.
That's the design of the projector -- some are designed to be "narrow", such as the projector in the back of a movie theatre, and some are designed to be "wide", like a teacher standing at the front of a small classroom, placing the projector a few feet away from the projection-screen.
Buy a different projector that suits the dimensions of your room.
There is a menu item which has both the lamp hour reset and check air flow, etc. You must go into the menu and reset the air flow item. MAKE SURE YOU CLEAN THE DUST FILTER!! Heat is the number one killer of projectors and Hitachi's run "hot". I clean my projector once a week--Hey, I'm not rich. lol! Also, excessive heat will cause the lcd panels to fail prematurely and cause lots of other components to do the same.--Rick
Check Air Flow means that the heat sensor is activated. This message means that the air around the projector is not circulating well... causing the heat. Check that the projector has at least 2 ft free air around it. Also, make sure that the filter is cleaned.
You need to clean the filters. When the filters collect alot of dust on them, they block the airflow to the internal parts of the projector and can cause the bulb to blow due to the temperature getting to hot.