Question about BenQ PB6100 Multimedia Projector

4 Answers

Projector shuts down after only a few minutes.

After somewhere between 10-30 mins of operation, the projector seems to turn itself off.

The projector will blank out and the red 'lamp' light blinks. The fan continues for about 30 seconds (which seems shorter than normal?) and when complete the orange 'Power' light goes on, indicating 'Stand-by' mode.

At this point, I can turn the projector on again and get another 10 minutes.

I have tried to clean out the unit - did I miss some important, easy to miss, vent?
I have just replaced the lamp, and though the image is brighter, this shut-off behaviour still occurs.

Is this temperature related?
Is this a problem with the projector itself?
Is my second lamp defective?

Thanks for any help you can offer.

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  • 1 more comment 
  • kacheng Jan 21, 2008

    I fiddled with the menu settings and turned the auto shut-off to zero.

    I also reseated the lamp again.

    One of these two things seems to have solved the problem for now...

  • kapoy Jul 04, 2008

    My unit just shuts down after only 25 seconds of powering-up, any suggestions?

  • ramunch Oct 28, 2008

    Projector starts in stand-by mode, i press the power button, fans run to full rpm and it sits there for about 30seconds to a minute without a picture, then fans shut off and lamp led blinks red.



    The lamp should last 2000ish hours and this lamp has less than 200hours on it so i'm very hesitant to drop 300bucks on buying a new lamp, especially when others here have said it didn't fix the problem.



    The solution says to get into the menus, I can't do that as I never get a picture.



    Any other suggestions?

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4 Answers

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Enter in Factory Menu
1. How to enter factory menu:
I. Hold press "UP" button until the "Lamp hours info." OSD display on bottom-right of screen.
Press keypad <Power> and <Blank> key simultaneously again, then enter Factory menu.
enter in fan menu and increse the speed of fans.
paul@ula.ve

Posted on Jul 02, 2008

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I'm having the same problem. My Model is PB8253. Projector started, then afer a couple minutes it goes off with the red lamp led flashing.
Just replaced the lamp, but the problem persists. Tried to remove all connecting cables, except for the power, but still the same problem.
Anyone with similar problem or solution, please contact me at dartveiga@gmail.com

Posted on Jan 21, 2008

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Check the Heat Thermostat of the Lamp and clean it from any dust , and there s a small blower near the lamp , clean it also , and finally clean the cooling fans, it worked for me

Posted on Apr 02, 2014

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WHILE MY PROJECTOR WAS IN USE IT JUST SHUT DOWN,I THOUGHT IT WAS THE LAMP SO I REPLACED IT BUT AM STILL HAVING THE PROBLEM. I GET NO PICTURE AND THE RED LED LIGHT FLASHES. PLEASE HELP

Posted on Apr 28, 2008

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