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My BENQ SP381 can't Turn ON but three lamp indicator is ON (Red)

My Projector can't Turn ON. when i plug the cable and i turn on the switch behind projector, three lamp indicator is always ON and showed red color. please tell me the good solution

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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smeago1
  • 136 Answers

SOURCE: No light come on from the projector

Thats the projector telling you that you need to replace the lamp. Lamps usually lasts for about 2000 hours so if you had it for a while you may need to replace it.

www.froogle.com and enter your make and model or go to www.projectorcentral.com and find a few retailers in the US that sells lamps.

good luck

smeags

Posted on Jan 02, 2008

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  • 41 Answers

SOURCE: 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.

Posted on Feb 04, 2009

projdoc
  • 2237 Answers

SOURCE: rest benq pe8700 projector

if the lamp comes on, hold the exit button down until the osd comes on. press enter, then the right or left arrow button to reset it, then the exit.

Posted on Nov 12, 2009

  • 1 Answer

SOURCE: Projector shuts down ca 20 sec from start.

I have the same problem, however, my lamp wasn't replaced. Projector working great, just started today. Filter cleaned, reset lamp time, neither helped. Any luck yet?

Posted on Dec 25, 2009

  • 2 Answers

SOURCE: the projector lamp does not turn on

I have done this on several of our PT-LB50U's with sucess every time.Remove lamp cover and lamp.Then remove top of case by removing 6 screws on bottom.Remove metal shroud that would cover lamp 2 screws and remove 2 screws that hold lamp plug and move it away.You will see a little blue lever for saftey switch move it back and forth from top and bottom put back together and should turn on.

Posted on May 13, 2010

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1 Answer

Red lamp/ orange/lamp After a "break" of about


test this steps and fix it. God bless you


  • Secure the lamp cover and the air filter cover of the projector body if the projector does not power on. Ensure that the power cable is firmly connected to the projector and an active power plug. If the projector was turned off and then on quickly--let it sit for 90 seconds before trying to turn it on.

  • 2
    Replace the projection lamp if the projector will not power on or if the lamp indicator is flashing. Turn off the projector and let it sit for at least 30 minutes. Locate the lamp cover and remove or loosen the lamp cover with a screwdriver. Carefully remove the projection lamp from the projector housing using the handle, if available.

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    Place the new projection lamp into the projector housing and secure it to the projector. Replace the lamp cover and reset the lamp timer. Power on the projector to ensure the new lamp is working correctly.

  • 4
    Remove the projector from the enclosed area to allow air circulation if it constantly overheats. Place the projector into an open area and make sure there is no blockage for the ventilation holes. Unplug the projector for at least 45 minutes to allow it to soft reset.

  • 5
    Clean the air filter to allow the projector better air circulation. Turn off the projector and unplug it from the outlet. Remove the air filter cover and use a vacuum to remove dust from the area. If the filter is unable to be cleaned correctly or is damaged, then replace it. Pull the air filter from the projector and place the new one in the now empty slot. Close and secure the air filter cover.

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I replaced a Mainboard on a BenQ PB6210 just yesterday - had all the same symtoms.

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