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InFocus LP540 projector won't come on, power cord checks good

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  • prhendricks Jan 03, 2009

    Infocus LP540 won't power up, power cord checks good.
    Unit is out of warrenty.
    Can you tell me where the fuse(s) is located

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Have you checked the bulb ?

Posted on Jan 01, 2009

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Hi and welcome to FixYa,

Initially, if there are no indicators that power is reaching the inside of the InFocus LP540 projector, then it would be safe to assume that it is primarily a power supply issue. Now this could be as simple as a blown fuse, missing +5 standby voltage or complicated as thermal protection or auto protect mode.

This of course would require opening the unit, perform voltage measurements, determine faulty component and subsequent part(s) replacement. Further, a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron would be required. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings.Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Good luck and Thank you for using FixYa. Happy New Year.

Posted on Jan 01, 2009

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Kindly remove the power chord or wire on the projector,, then you will see the hub on it kindly test in on a tester if you have the tester, switch the tester in x10 resistance then check it, if the pointer of your tester will not move it means there is no resistor that connects to the power because it will not on,, just try it my dear,, then if you have a comment, kindly ask it again for clarification,.. regards JAN_yuanjia

Posted on Dec 12, 2008

  • Antonio Buenafe Jr.
    Antonio Buenafe Jr. Jan 01, 2009

    if the power is good then it will not on the problem on it is the bulb, check the voltage on the bulb and test it if it is work, because the bulb has defected

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Make sure the lamp cover is in place as it has a plunger on it which closes a switch . If the switch is open you will never power on. With the cover remover you can manually actuate the switch too and it will power up.

Posted on Dec 12, 2008

  • Manoj Rout
    Manoj Rout Dec 12, 2008

    Go to this site for user manual guide

    http://www.aboutprojectors.com/InFocus-L...

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If the unit is outside of warranty start by checking the fuses and the power adapter, or power board. If the unit is still covered by warranty contact your dealer or infocus for repair service.

if you don't want to take the unit apart you may want to contact a service center, if you need a service center drop me a comment.

Posted on Dec 12, 2008

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Check power supply battery and try to reset it.
change power code and replace battery.

Posted on Dec 12, 2008

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Hi

The fuse is located on backside of projector you can unscrew it and than replace it if it is faulty.
Thankyou

Posted on Jan 03, 2009

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