Question about Hitachi CP-S235 Multimedia Projector

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Hitachi cp-s235 two red lights come on when i turn it on. and it says to clean filter and reset my lamp life is only 106 hrs when it says it last 2000 hours can someone help???

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  • misthu Dec 18, 2008

    I have the same problem. I took out the sponge filter and washed it, but the sign still comes up

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Did you clean the air filter? You should vacuum it or use an air dusting can to clean it out.

Afterwards, reset the time in the menu. In the manual, it says you have to go in the menu to the OPTION submenu. Go down to FILTER TIME and hold the right arrow down for 3 seconds. It will then go into a mini-submenu that, when you press the up arrow, will reset the filter time to 0. The key is to hold down the right arrow initially for THREE+ SECONDS to get into the reset filter time menu. This is NOT the submenu that has RESET - EXECUTE. That is a different thing that doesn't reset filter & lamp time.

Here's the manual online:

http://www.hitachi-homeelectronics.us/supportingdocs/forhome/DisplayTechnologiesGroup/lcdprojectors/SupportingDocuments/01CP-S235-OG-ENG.pdf

Posted on Jan 21, 2009

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1 Answer

My projector is coming up with two red lights. I have cleaned the filter and the lamp, the lamp is lit but nothing is projecting? Help, do I need to replace the projector?


Which lights are red, Power, lamp or temperature?
Does the menu not come up at all. What about the startup logo etc.
I'm assuming the lamp has not exceeded 2000hrs useage, when it will shut off automatically.

Sep 14, 2011 | Hitachi CP-S235 Multimedia Projector

1 Answer

My lamp is showing red light so is power when i turn on my lcd projector...


Probably overheated. Turn off the power and wait for the machine to cool. Then check that the filters are clean and that nothing is blocking air flow - and that fans are running. Turn it back on. If the same thing happens, they say to replace the lamp. I would check the number of hours on the lamp - it may be nearing end of life. Hopefully, it is a ventilation problem.





Feb 10, 2011 | Hitachi CP-X275 Multimedia Projector

1 Answer

To replace a bulb in the Hitachi CP-S235 LCD Projector, do I just unscrew the two screws under the plate underneath the machine? Are there any precautions I should take, like not handling the bulb? I have...


Yes to replace the lamp you need to remove the 2 screws. You can touch the lamp but I try not to. After the lamp is in you need to reset the hr timer for the lamp. to do this you need to look in manual on page 34.
If you do not have the manual you can get it here at link below.

http://www.aboutprojectors.com/pdf/hitachi-cp-s235-manual.pdf

Good luck

Oct 05, 2009 | Hitachi CP-S235 Multimedia Projector

2 Answers

My Hitachi cp x250 projector powers on and displays and then the bulb turns off after a few minutes, and the lamp light and the power light come on red.


Most likely you have a defective lamp or it is near the end of its life. It's also possible that the high voltage power supply is going out. You might check the lamp hours - you can find this in the advanced menu. Also check the air filter, if you haven't cleaned it, the airflow might be restricted, shutting down the projector.

Sep 18, 2009 | Hitachi CP-X250 Multimedia Projector

1 Answer

The change filter light keeps coming on


In the manual, it says you have to go in the menu to the OPTION submenu. Go down to FILTER TIME and hold the right arrow down for 3 seconds. It will then go into a mini-submenu that, when you press the up arrow, will reset the filter time to 0. The key is to hold down the right arrow initially for THREE+ SECONDS to get into the reset filter time menu. This is NOT the submenu that has RESET - EXECUTE. That is a different thing that doesn't reset filter & lamp time.

Here's the manual online:

http://www.hitachi-homeelectronics.us/supportingdocs/forhome/DisplayTechnologiesGroup/lcdprojectors/SupportingDocuments/01CP-S235-OG-ENG.pdf

Jan 05, 2009 | Hitachi CP-S235 Multimedia Projector

2 Answers

Resetting the air filter timer


If you do not have a remote here is how to reset the filter time. Use the "Menu" bottun to get the "easy menu" to display. Push the down arrow until you get to "Filter Time," then push and hold the RIGHT arrow to reset the filter time. DO NOT try to reset using the "Reset" option on the easy menu, it will not work.

Apr 22, 2008 | Hitachi CP-S335 Multimedia Projector

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Hitachi CP-X250 LCD Projector


clean filter and reset the filter timer by advanced options filter timer and hold reset till menu shows then arrow up and it will zero out.

Oct 19, 2007 | Hitachi CP-X250 Multimedia Projector

3 Answers

Hitachi cp-s235 projector- red lights and projector turns off


There is a small tab on the lamp cover that should press into an "L" shaped slot on the lamp housing. This tab may break off, and not press into slot far enough to make the lamp dectection switch click. When the lamp heats up, the plastics expand and the detection switch opens. The projector quits as if no lamp is installed. The fix is to make an extension for the tab. I cut a small piece of sheet metal and crazy-glued it to what was left of the plasic tab.

Feb 20, 2007 | Hitachi CP-S235 Multimedia Projector

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