Question about Sanyo PLC SW20A Multimedia Projector

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Sanyo PLC SW20AR - Shuts itself down

Basically, my projector has started powering itself down a split second after it completes its startup countdown. Makes it the full 30 second countdown, displays image for less than a second, then shuts itself off. Neither the "lamp replace" nor "warning temp" light comes on. Is it my lamp? Or something more severe?

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  • 93 Answers

Check the follwoing :
check lamp physically for melted filament, white deposits on filament/ reflector, if so change lamp
if lamp looks perfect, the ballast needs to be replaced, also check for fans if they are running fine

Posted on Feb 08, 2009

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Posted on Jan 02, 2017

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It sounds like the lamp is going.
Do you know how many hours of use are reported on the lamp?

Many times these projectors have circuitry to shutdown when they suspect the lamp is near the end of life. Lamp hours vary and usually will go up to and even beyond expectancy, but there is occasions you can receive a bad lamp and have it blow in a matter of hours...not common but it does occur.

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hi,
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also check that is the lamp replace light lights up or not. if its lights then you have to change the lamp and then reset the lamp hour.
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Projector turns off after 5 seconds


You have a classic temp sensor problem. Its a fail safe on theprojector, basically a fuse that bridges the main power cables. Lookslike a little pot, With a white ceramic head.
Now what it does, Is the white ceramic head rises as the unit getshotter, and thus breaks the power circut. All you need to do is, openup the unit, locate the sensor (its mounted next to the lamp on yourprojector) And push the little white head back down, thus closing thecircut, and restoring power supply.
Here is the full repair schematic to guide you. :)
http://yama.co.za/forum/index.php?topic=146.0

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1 Answer

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Sanyo plc-xu35


Sounds like a simple problem to fix but don't ask here unless you plan on signing up...take your projector to a "real" professional who'll actually speak to you.

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