Question about Hitachi PJTX100 Multimedia Projector

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Fans runs but a clicking sound is heard.sometimes the bulb comes on and sometimes the projector turns off

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I'm not entirely sure what you mean by "the bulb comes on" but i can answer your other questions.

1. A clicking sound made by the fans is usually caused by a cable obstructing the fans, you should first try using some computer duster (canned air) to clear the blockage, if that doesn't work you can take it to someone who fixes projectors or you can open the case yourself and move the cables out of the way.

2. The projector turning off on its own could be caused by overheating. This can happen if you leave it turned on for too long. I would not attempt to correct this your self, as i don't have enough information to be sure about this, too fix this you should ask the manufacturer to replace it or take it to a professional.

Posted on Oct 16, 2010

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1 Answer

Just clicks want come on


there is a few things that can cause that 1 the bulb blew 2 the cooling fan quit or 3 the hitemp sensor for the bulb is bad sometimes its cheaper to replace a rear projector tv then to repair a bulb on some models can run $600.00

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The status light is on our NEC MT850 and the bulb looks fine. What other problems could it be?


1,Check the fans ,whether each fan is running,when you turn on the projector
2,if the fans run, then ,check the lamp or lamp ballast
turn on the projector ,at the same time ,if you can hear a continuous beep beep sound (the ballast igniting the lamp)
means the lamp may be fault,and other parts is working well



Have a nice day!
We supply original projector parts: lamp, bulb, Lcd panel, Lens, DMD chip, color wheel,
motherboard, powersupply ... with high quality and competitive price.
Jerry
Lampdeng Limited

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1 Answer

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Hi.
Look at the base of the bulb at the filament in the center of the bulb, if buldging change he bulb first. If the porblem continues then have the units Ballast or Sometimes called the lamp driver check and replace if defective. The cheapest way is the check the voltage at the lamp connections in the housing for At least 280 volts, while turning on the unit you will need a voltage meter to do this.

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1 Answer

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the colorwheel motor bearings are starting to go. you'll need to replace the colorwheel. you can get the part from a sharp service center and do it yourself or send it to one for repair. either way, try av solutions in ny. they're really good. www.avsolutionsny.com

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1 Answer

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check all the fans, if still working. if the problem occur get assist to the nearest technician im sure your lamp balasst was deffective.

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1 Answer

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1,Check the fans ,whether each fan is running,when you turn on the projector
2,if the fans run, then ,check the lamp or lamp ballast


Have a nice day!
We supply original projector parts: lamp, bulb, Lcd panel, Lens, DMD chip, color wheel,
motherboard, powersupply ... with high quality and competitive price.
Jerry
Lampdeng Limited

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1 Answer

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The manual says it might be because the power went out when it was on. Just a note here, as projectors age they become more sensitive to power outages. When not in use turn off completely if you can. They have an on/off button.

Otherwise not sure but think you may need to replace the fan. Try cleaning it first but gently.

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1 Answer

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