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Re: Projector InFocus LP540
I agree! However you can still find good deals on eBay occasionally... The lamp is a SP-LAMP-017 the same lamp is used in the LP640 as well as the ASK Proxima C160 and C180 Do not buy a Chinese "Replacement for" as these are usually unreliable at best.
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It's most likely the lamp is bad or the part that starts the lamp called a ballast is bad. The LP540 model has an issue with the ballast burning out. The ballast is a part that starts or strikes the lamp. The only sure way to test is to try starting it with a known good lamp.
You can check for signs of a bad lamp. Think about how long you've had your projector & estimate the total hours on your lamp. If it's over 500 it very well could be the lamp as they fail at any time. Remove the lamp cover door & pull out the lamp to visually inspect it. Look in good light & use a magnifier if available too check for any cracks or chips in the small bulb & look to see if the round part of the small bulb is covered with a lot of white or if it's not round anymore. If it's very white it means it has a lot of hours on it. If there's any loose glass inside (check by turning the lamp cage in different directions) then the lamp is bad. If it's nice & clear or has only a small white spot it's probably a good lamp.
I repair almost all Infocus models if you need a quote.
Thanks & good luck,
most of infocus parts are oem and made by a company in taiwan that no longer makes power supplies, and many of the parts have their stock numbers and not neccesarily a common stock. the power supply, however, is in stock at infocus for about $65.
I haven't serviced an infocus projector before, But I have seen 3 or 4 Red cutting out display simptoms on projectors caused by bent or pushed in gold pins on the VGA leads. (it always seems to be red!) I won't comment on insides but do check this basic tip before delving in too deep. Good Luck
good luck. not even the infocus authorized service centers get those. besides, they were made by another company that does not make power supplies antmore. and infocus doesn't have any new ones in stock. if you're getting no power at all, replace the mosfets. it works half of the time.