Question about InFocus In Focus SP-LAMP-021 Replacement Lamp 3000 Hours SP-4805 Projector Lamp

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Infocus 4805 unit fires up but no picture...only about 500 hours on lamp???thx john

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  • Anonymous May 12, 2008

    I have the same problem green light, fan fires up, then down, and so on. No picture.

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Bulb is burned out

Posted on Oct 01, 2008

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Posted on Jan 02, 2017

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LP540 Projector Lamp Does Not come on> it has an error message; "Lamp didn't Strike". Does that mean the Lamp/Bulb is bad?


Hi,
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,
Jim

Jan 13, 2010 | InFocus SP-LAMP-017 Projector Lamp for...

1 Answer

Hi we have an infocus 4805 and had to store it (very carefully) for 5 months. Now when we come to use it there is a light for about 30 secs if you look down the lens and then nothing. The bulb had hours of...


Hi,
After storage for a while one of the fans may be stuck causing the over heat safety circuit to shut down the projector. Use a bright flashlight & look in vented areas for fans & use a popsicle stick, thin plastic straw or suitable while unplugged (do not use anything metal) & give all the fans you see a little push to turn them around some. Also remove the lamp cover & remove the lamp & push the cooling fan inside the lamp compartment to loosen it up. Put the lamp back in & replace the cover & then plug it back in, wait 5 minutes then try starting it up again.
Just one of many things that can be wrong but worth a try. Good Luck,
Jim

Jan 07, 2010 | InFocus SP-LAMP-017 Projector Lamp for...

1 Answer

The Lamp won't strike


if the inside of the lamp has bulges, black spots or fogging, replace the lamp. otherwise, if you have a dlp projector, it may be the colorwheel or the ballast. if you have an lcd projector, it may be the ballast.

Dec 21, 2009 | InFocus In Focus SP-LAMP-021 Replacement...

1 Answer

InFocus Won't turn off, no powering down, and no projection


The 4805 does not have a power button it has a power switch next to the mains power connector but that switch has no lights near it.
If you meant the power light on the top of the projector right next to the menu button is yellow that is bad. it indicates that the main board is not working which would explain the projector always being on. also the led being orange means that both the green and red led's are on at the same time (this is BAD)
This is not a valid function for the led's. Another indicator that the main board is wacked. By the way if you received the projector less than 30 days ago you can file a claim with the eBay resolution center that the projector is not as advertised/Described in the listing. And you might be surprised when you get your money back! the "NO RETURNS"is null and void if there was any gross misrepresentation or deception in the listing!! i.e. Not as described...

Sep 19, 2009 | InFocus In Focus SP-LAMP-021 Replacement...

1 Answer

My InFocus 4805 SP projector is showing just black and white


If you have any video at all and it's only Black and white there is a 99.99% chance that your Color Wheel has lost all of it's glass color filters.
You can confirm this by removing the lamp. then look straight into the projector where the lamp was and you should see the color wheel of colored glass segments (Red, Green and blue) I believe you won't see them because they came off of the wheel.
Also if you lift up the projector and turn it around in various angles and you will hear the small pieces of broken glass from the color wheel.
Unfortunately you will need to take it to an authorized service center for repair. Be prepared to spend upwards of $300 for the repair.

Cheers

Aug 23, 2009 | InFocus In Focus SP-LAMP-021 Replacement...

2 Answers

I have infocus sp5000 and the lamp has stopped working. I pulled it our of the unit and it looks perfect. I suspect it is the lamp counter, but I need a method to reset without being able to see the...


there isn't one. you need to see the menu. but what color is the led and is it blinking?
green- all is well
red blinking:
1 time- lamp not striking after 5x.
2 times- lamp has more than 3000 hrs. replace lamp.
3 times- lamp failure. replace lamp.
4 times- fan failure. shuts down.
5 times- undiagnosed error. possibly ballast or colorwheel.

if the colorwheel won't spin, the lamp won't light. when you turn on the projector, do you hear a high-pitched whir? if not, the colorwheel needs replacing.

Aug 17, 2009 | InFocus SP-LAMP-017 Projector Lamp for...

1 Answer

InFocus LP130 Projector has intermittent power off


go into the menu to find out the lamp hours. it could be the lamp, but if the projector shuts down and not just the lamp, there is either an overheating issue, or a power supply issue.

Mar 07, 2009 | InFocus LP130 Replacement Projector Lamp -...

1 Answer

Infocus lamp not firing


more then likely the ballast has gone bad and the lamp is not getting the right voltage to fire. Only other thing you can do is remove the lamp the turn the power on and check the voltage at the connector. This will not check the triggering voltage mine you only the lower operating voltage. But since you have replace the bulb with a known good one I'm betting on the ballast is bad.

Dec 08, 2008 | InFocus Replacement Lamp Projector Lamp...

1 Answer

Replacing bulb


hold the volume up/down in ,switch unit on while holding these in for 30 secs, if that fails, flash unit with new software.

Dec 01, 2007 | InFocus In Focus SP-LAMP-021 Replacement...

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