yellowish spot on my pt-ae 100

Discussion in 'Projectors, Screens & Video Processors' started by monztur, Mar 26, 2006.

  1. monztur

    monztur
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    I have a pt100 now for four years the bulb which i just changed had over 11,000 hours on itand still working ,but I had a yellowish spot in the middle of the screen. I thought it was the bulb ,so i fianlly put a new one in. My yellow spot is still there ..what gives.. I thought about cleaning the optics path but was worried about alignment can path be cleaned or is it to hard .. is yellow spot dust or is it the lcd s dieing.. i only have 11,000 hours on it shouldnt it last a little longer than that........... thanks:hiya:
     
  2. dean randle

    dean randle
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    Hi
    On my Sanyo, when I had dust it was green, so it may be a simple case of getting an aerosol of air from Maplins and giving it a blow out?
    It may also be worth having a search on the AVS forums, as for my Sanyo there was a guide with pics of how to take the pj apart and where to aim the air.
    Good luck,
    Dean.
     
  3. Kramer

    Kramer
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    LCDs I reckon :( .

    Still, not bad...............11k hours :eek: :eek: .


    :smoke:

    Moved to LCD PJs.
     
  4. theritz

    theritz
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    yellowish spot sounds to me like you need to replace the blue polariser..... the part costs about £90 and it takes about 15 minutes to replace. If you're up to doing the job yourself it's well worth doing. You could try cleaning the blue polariser first, just make sure you mark it's position before removing it so you can put it back exactly in te right position.

    If you want to take this on I can send you the appropriate page out of the
    AE100 Service Manual, I'm sure I have a pdf of it somewhere....

    11,000 hours - Whoa !!! brilliant stuff .



    Regards,

    S.
     
  5. morkys

    morkys
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    Are you serious about 11,000 hours on one bulb? Or maybe that was your second or third bulb?
     
  6. shahedz

    shahedz
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    11, 000 :eek: i didnt think domestic projectors could last that on one bulb
     
  7. fallwood

    fallwood
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    I didnt think a panny pj could last that long period, never mind the bulb.
     
  8. throwit

    throwit
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    hey, i don't suppose you could make that pdf available to all ?

    also, (unlikely this) i don't suppose you can help me with a service (not user) manual for an infocus lp240 - they're hard to find !


    thanks

    matt

    :)
     
  9. stegalv

    stegalv
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  10. Comer

    Comer
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    Using the projector with this fault can cause damage to the LCD panel so best to get it sorted soon and not use the pj in the mean time.
     
  11. throwit

    throwit
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  12. monztur

    monztur
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    I 'm not kidding about the 11,000 hours . I would turn it on after work 4:00 and it would stay on till 1:00am every day ,as their is always some one in the family watching tv.(you think were watching a little to much tv....).The spot in the centre started around 4,000 hours .we were sure it was the bulb, But i just had to see how long it would go for on low.The old bulb is still working and the colors and quality were still pretty darn good except for the yellow spot.The new bulb really doesnt look any different than the old one.I want to take the mirrors out and clean them but they must be aligned i would think..:hiya:
     
  13. theritz

    theritz
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    Monztur,

    Do not take out any of the parts in the optical path (i.e. from the lamp to the lens) until you've at least read the Service Manual - you could well make a mess of the alignment. I'll have a look for manual later tonight - would you send me your email address in a PM so that I can send you the relevant stuff (assuming I can find the blooming thing......:) )


    Sean.
     

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