Question about Sanyo PLC-XT11 Multimedia Projector

8 Answers

Projector Won't Turn On

The ready and lamp lights are on, but when I press the on/off switch, the lamp light dims as if it is about to turn on but it doesn't. The ready ligh will turn off and the fans will come on then the projector shuts itself off.

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  • 3 more comments 
  • James12B3 Apr 13, 2008

    I have cleaned the filters but that did not work.

  • James12B3 Apr 13, 2008

    The projector is not hot at all. Actually it is blowing cool air. I tried changing the bulb also but it still does the same thing.

  • James12B3 Apr 13, 2008

    Thanks. I tried replacing the bulb and cleaning the filters but I'm still having the same problem.

  • James12B3 Apr 14, 2008

    I have taken it apart, cleaned it with compressed air and changed the lamp. It still will not stay on. Sometimes the warning temp light comes on.

  • James12B3 Apr 14, 2008

    I have taken it apart, cleaned it with compressed air and changed the lamp. It still will not stay on. Sometimes the warning temp light comes on.

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8 Answers

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  • Master
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I beleive that the thermal protection circuit is at fault. Maybe the thermistor is shorted out and the projector thinks it is perpetually over-heating.

Posted on Apr 14, 2008

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  • Master
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Gosh. have you tried turning the contrast on? if you have just serviced the projector, chances are, its not the projector anymore but the connection to the pc or the video setting of the pc itself.

please do check.

Posted on Apr 14, 2008

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  • Kleanthis Mavropoulos
    Kleanthis Mavropoulos Apr 14, 2008

    See instructions on pages 19 and 42

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  • Sanyo Master
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Only the ready and lamp lights are on so

it means that there is no overheating. so thats not the problem.


There might be a circuitboard hardware problem.

The lamp light isnt on so its not a lamp problem,

It can be the lamp even thought there is no lamp replace light on.

OR then its hardware.

Id suggest takeing it to a professional to be analysed since we dont know if its a lamp or hardware problem.

Posted on Apr 13, 2008

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Have you the projector ballast & lamp, it possibly need to be replaced and have to installed a new one. That why the projector shut's off coz it never get enough power and light source on the ballast area..

Buyin a set of a ballast kit would be avaible the same as the model of your projector.

Posted on Apr 13, 2008

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The lamp needs a replacement , thats the only thing wrong on it

Posted on Apr 13, 2008

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It might be a cooling problem. Since the fans start up maybe much higher than normal, that would indicate that it may be overheating since projectors normally do this along with many other electrical devices. I would check to see how clean the projector is especially the vents and take some compressed air to it after cleaning it with a cloth and getting as much dust as possible off of it. Let me know if you still have this problem after doing this.

While cleaning it, please have it off so that it may cool down faster and possibly reset itself back to a normal operating state.

Good luck with this.

Posted on Apr 13, 2008

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  • Benjamin Patri
    Benjamin Patri Apr 13, 2008

    Is the projector excessivelly hot?

  • Benjamin Patri
    Benjamin Patri Apr 13, 2008

    Is the projector excessivelly hot? You may have to

  • Benjamin Patri
    Benjamin Patri Apr 13, 2008

    Is the projector excessivelly hot? You may have to replace

  • Benjamin Patri
    Benjamin Patri Apr 13, 2008

    Is the projector excessivelly hot? You may have to replace a

  • Benjamin Patri
    Benjamin Patri Apr 13, 2008

    Is the projector excessivelly hot? You may have to replace the

  • Benjamin Patri
    Benjamin Patri Apr 13, 2008

    sorry, my computer was going nuts



    bulb might be bad too or may need to get cleaned itself

  • Benjamin Patri
    Benjamin Patri Apr 14, 2008

    check for crossed wires (and broken, possibly just the insulation) and for any lose pieces on the board please and then let me know what you find

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  • Master
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HI,

Sounds like it may be overheating, have you cleaned the air filter. If the unit gets too hot, the projector will shut its self down.

Goodluck,
Please don't forget to rate the solution

Posted on Apr 13, 2008

  • Priya darshan Apr 13, 2008

    Hi again,

    the problem appears to be with the bulb. Once the bulb gets 'tired' the
    filament becomes 'stranded' and the running temperature increases
    massively. The safety mechanism of the projector cuts in before serious
    damage occurs.

    Interestingly, using big external fans didn't
    solve the problem, but turning the projector upside down does
    (presumerly the heat sensor is at the top of the projector).

    Solution: Buy a new bulb, or for what bulbs cost, but a new projector!!

    Please don't forget to rate the solution.

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