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Posts referring to the InFocus LP350
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Jun 10, 2010 9:53 AM
I'm sure HP was a typo.
I called the Infocus support line, they just needed the serial number to tell whether the fix was in or not, and for mine, it wasn't. They recommended contacting projectordoctor.com, but if the fix were understood I'd just as soon do it myself, if possible. Although, given that the lamp housing needed to be modified, the fix, at best, probably takes buying a new board on eBay.
Jun 10, 2010 9:05 AM
I've got an LP-350, and once again, my lamp needs replacement. I've only had used lamps, so I can't say whether they made it close to 2000 hours or not.
An ebayer was selling a new lamp and said it's only for "Upgraded Lamp for Converted Projectors Only". I asked him about it, and he was nice enough to give me a fuller-than-expected answer:
"These projectors had an issue that resulted in the bulbs burning out fairly fast due to a problem with the power supply. LP offered a free fix for this problem and the units had to shipped to them for the retrofit. As a result of this fix, the bulb housing was altered and the new bulbs sold work in conjunction with retrofitted units. If your unit has not been fixed by HP, I think you would need to remove the bulb from the housing in order to use it, but you would have to give HP a call to verify that. If you look up your model number on their website, they have an informtional page on what bulb you need to buy based on the status of your projector. I will say that after HP fixed our unit, our bulb went beyond the 2000 hours and the spare that I'm selling, I never needed because my bulb lasted so long."
So far I haven't found any details of this repair work to see if it's been done to my projector or to do it myself. If anyone has further details about this, I'd appreciate hearing from you. Despite its age, I really like my projector, and it fits perfectly in the room I have it in, but if it's going to shorten the life of $200 lamps it may be time to move on.
Feb 6, 2009 9:45 PM
I have an LP 350 by InFocus and the bulb wont work. When I power on the projector a blinking green LED comes on and for about the first 15 seconds the projector makes a reving sound. The bulb never comes on and then the green LED changes from blinking green to a red/amber color. I have tried to reset the bulb hour counter, and a few other tricks. I appreciate any help, right now the projector is opened up so I could inspect the circuit board, found nothing obviously wrong with it.
Oct 5, 2008 5:09 PM
I have the same projector and my lamp just blew out. Did you get the new firmware on yours? Could you tell me how you did it and sell me the adapter you made, or do I need to do something else to get a new lamp for it and make it work.
Feb 12, 2008 4:02 AM
so here is the deal
for the first 30 minutes it is on there is no problem
after that variously it will slightly distort
at top corners for fractions of a second at a time
it also will show 2 very faint horizontal lines
and the color kinda looks like a psychedelic wash
all of these symptoms are very minor
but it is better to figure it out before it gets worse
i opened the unit and cleaned the fans
which seemed to help a little
i kinda think it may be heat induced
because he first 30 minutes its fine
i also have no clue how many hours the bulb has on it
the unit never seems to keep up with that
any help is appreciated
thanks in advance
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