Maximizing Lamp Life

Discussion in 'Projectors, Screens & Video Processors' started by kelaD, Apr 13, 2005.

  1. kelaD

    kelaD
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    Projector lamps are an expensive commodity.
    Any suggestion on how to maximize lamp life?

    Things I do:

    - allow the full cooling cycle before even thinking about switching back on
    - keeping it switched on for at least 30 minutes at a time
    - watching the ambient temperature (it's no 90 degree home here!)
    - using the dim setting (which looks better with my set up)

    Any more?
     
  2. dekoded

    dekoded
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    I think thats pretty much all you can do, although it could be worth checking/cleaning your filters.
     
  3. Peter Parker

    Peter Parker
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    Some say that if you can run the fan on high mode whilst keeping the lamp on low, you may preserve the lamp a little better. Of course, that could be a noisy solution depending on the pj.

    Gary.
     
  4. Jules

    Jules
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    If by not switching on until the the cooling cycle has finished you mean until the cooling fans stop, then I don't think that's enough.
    I won't let anyone near my projector unless it has had at least 1 hour to cool down. I think 'hot starting' is a lamp killer.
    I also try not to disturb it in anyway whilst its running.

    If the room gets warm, I switch the fans on high with the lamp on low.
    It can be quite noticeable how much cooler the exhaust air is when the fans are running quicker.

    Oh, and I make sure I've decided what I'm going to watch before turning the projector on.
    In the past I've made the mistake of turning it on first, only to rummage through my DVD collection and not found anything I was in the mood for.
    This is usually followed by a visit to play.com :D
     
  5. PJTX100

    PJTX100
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    Some go to the extreme of purchasing an uninterruptable power supply (UPS) in case of power cuts.

    A week or two back we had roughly 6 or 8 "mini" power cuts in our area within the space of a couple of hours - by "mini" I mean anything between 2 secs to 10 secs. Luckily the PJ wasn't on at the time!

    ...PJ
     
  6. hebawom

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    Was this in the big storm with lightning and thunder a couple of weeks ago?? Mine was on at the time we had a power-cut. I thought that would probably knock a few hours off the overall time of my lamp :(
    Not too bothered though - I understood the cost of lamps when I bought my projector, and I use it for everything. TV, computer games, web browsing, films etc etc.
     
  7. rimibar

    rimibar
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    I have an H78 - is it possible to set the fan to high regardless of lamp setting?
     
  8. Joe Fernand

    Joe Fernand
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    Never switch in on :)

    We've had LCD PJ's on our hire stock for a fair few years and these get anything but well looked after and I cant say the lamps fair any better or worse than the units we supply to Home Theatre customers.

    Best regards

    Joe
     
  9. PJTX100

    PJTX100
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    Spot on Joe.

    PJ's in work get hammered, flung around, switched off at the wall, switched straight back on... they seem to keep on smiling.

    That said, it's kid gloves with mine!...PJ
     
  10. PJTX100

    PJTX100
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    No there wasn't a storm, just think it was a problem at the substation or something.

    I've had one powercut when the PJ was on. Yes I'm sure it does the PJ no good, though I'm told the main no-no is switching the unit back on before the lamp has cooled... I've got a feeling I may have done this once or twice while fine tuning my home made shelf! :suicide:

    ...PJ :)
     
  11. Peter Parker

    Peter Parker
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    It has been said that if the surounding components of the lamp are able to withstand the slow heat dissipation after a mains fail, then there's no real problem except the lamp will probably not restart if it's still warm.

    I've also heard that when the power is interupted, there is a rise in temperature before it subsides which can effect the lamp fillament at the base IIRC, causing it to get very hot and melt slightly, thinning the wire in the process. That doesn't sound so good. Anyone going to look at their lamp which has sufferd a power cut and see if they can see anything obvious?

    Gary.
     
  12. Solomon Grundy

    Solomon Grundy
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    ...or you can do everything to nurture the lamp and it still breaks when it is only 5 months old and has only been used for 120 hours... :censored: piece of :censored: ...knew I should have bought a plasma. :mad:
     
  13. PJTX100

    PJTX100
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    Tiny do some great ones ;)
     
  14. Solomon Grundy

    Solomon Grundy
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    HA! Sure they do...I'm not too upset though, if the worst comes to the worst I'll just have to shell out £250 for a new lamp. Why is the H30 lamp £50 more expensive than the H30A lamp?
     
  15. Peter Parker

    Peter Parker
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    Are the lamps interchangeable? When they produced the NEC HT1100, the lamp from that would fit the HT1000.

    Gary.
     
  16. Solomon Grundy

    Solomon Grundy
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    Not sure, took it back to Sevenoaks in Hull and they are sending it back to Optoma to take a look at. Fingers crossed.
     

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