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DLP lamp

Discussion in 'Electronic Repair' started by Jamie, Mar 18, 2006.

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  1. Jamie

    Jamie Guest

    had to replace my DLP lamp
    on my RCA 61" HDTV.
    what i got was a small lamp
    mounted in a plastic carrier case
    with interlock plug.
    this cost me $448 bucks and
    1.5 month wait by the time it got
    to my house.
    i noticed when removing the old
    one the element in the center had
    obviously blew apart from his base
    in the center and was just hanging
    by the side wire with some loose glass
    floating around inside the envelope.
    in my opinion i didn't get that much time
    on the unit, maybe 1.5 years or moderate
    usage? is this normal life expectancy or
    did i have a dud ? when i purchase this
    HDTV, the first one only lasted 8 hours and
    the lamp went out, i made the store deliver
    a whole new TV set.

    now, i noticed on the lamp there is a
    Philips number that seems to be the part number
    of the lamp only and not the carrier ! is it
    possible for me to simply get the lamp and rebuild
    this extra carrier unit ?, the lamp is simply held in
    with Robertson type screws.
    i don't remember the part number but its a small
    mercury lamp of 100W/30W level, the tv has a high and
    low power setting for the lamp.
     
  2. JANA

    JANA Guest

    You cannot substitute the lamp. The original lamps have a specific
    luminosity, shading characteristics, power and voltage rating, and colour
    temperature.

    In reality, these lamps are lasting about 800 to 1000 hours if you are
    lucky. I know some people that are changing these lamps about once a year.

    What I would recommend, is to sell the set, and get a new flat panel LCD TV.
    You will pay a little more up front, but the LCD should give you about
    40,000 to 60,000 hours of service before it needs a new set of lamps and
    ballast transformer. By then, you will be more than due for an upgrade
    always. Under normal use, the new models of the LCD screens should last
    about 10 to 12 years if used for only about 10 hours per day. This would be
    a much more cost effective way of watching TV.

    --

    JANA
    _____


    had to replace my DLP lamp
    on my RCA 61" HDTV.
    what i got was a small lamp
    mounted in a plastic carrier case
    with interlock plug.
    this cost me $448 bucks and
    1.5 month wait by the time it got
    to my house.
    i noticed when removing the old
    one the element in the center had
    obviously blew apart from his base
    in the center and was just hanging
    by the side wire with some loose glass
    floating around inside the envelope.
    in my opinion i didn't get that much time
    on the unit, maybe 1.5 years or moderate
    usage? is this normal life expectancy or
    did i have a dud ? when i purchase this
    HDTV, the first one only lasted 8 hours and
    the lamp went out, i made the store deliver
    a whole new TV set.

    now, i noticed on the lamp there is a
    Philips number that seems to be the part number
    of the lamp only and not the carrier ! is it
    possible for me to simply get the lamp and rebuild
    this extra carrier unit ?, the lamp is simply held in
    with Robertson type screws.
    i don't remember the part number but its a small
    mercury lamp of 100W/30W level, the tv has a high and
    low power setting for the lamp.
     
  3. To generalize that the lamps are lasting 800 to 1000 hours is overly
    pessimistic. Most are lasting much better than that. It is likely that
    the RCA had the same problems that Sony and others did with Philips lamps
    for a while. Those problems seem to have improved quite a bit. The Osram
    lamps used by other vendors still seem to last longer, but recent Philips
    lamps seem to be much improved over those of a couple of years ago. The
    life of this type of lamp has a great deal of variability. Some don't last
    long and some do. I know lots of people that have thousands of hours on
    their DLP lamps.

    LCD panels have their advantages, but even the best still have artifacts
    that are likely to be noticed by many more people than would find problems
    viewing a DLP unit. The picture on the better DLP products is stunning.
    Even the RCA DLP is far more watchable than even the best LCDs IMO. You
    also won't get the size out of a flat panel LCD that you will from DLP
    products.

    Leonard
     
  4. My Sagem DLP has a warranty for 5 years which includes the lamp. 3 years
    from the maker and an extra 2 from the store.
     
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