Question about Mitsubishi WD-52725 52". Rear Projection HDTV

1 Answer

Lamp life Have owned the unit since 7/05 have gone thru 3 lamps. In the shop now for another lamp 5.5 months old. Tech has stated 2077 hrs on the lamp. Unit not shuting off?? Mits no help and the tech replace the blast 1 year ago.

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  • was1532 Oct 07, 2007

    I dont understand. The hour for the lamp are right on the meter for normal use. The problem is the unit is shut off every day and I dont watch that much tv. So the meter is still running or the lamp isnt shutting off. Tech stated the lamp is shutting off.

    In order to have 2077 hours on the lamp the unit would have to be on for 20 hours a day.

    Any help would be appreicated cant afford knew lamp every 4 to 6 months.



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This lamp life is about right if the TV is getting constant use. Please check that the cooling fan is running at the correct speed and the vents are unobstructed.

Posted on Oct 07, 2007

  • Martin B
    Martin B Oct 07, 2007

    There is a possibility that the power supply for the lamp is not adjusted properly making it run too bright.

  • Martin B
    Martin B Oct 07, 2007

    Ok I have read the manual now, yes you should expect a lamp life of 4000hrs or more.
    I now understand what you meant by blast (ballast).

    Quote from the manual:-
    The actual life of the lamp in this television can vary, based on the lamp itself, the air temperature around the TV while it is operating, and your viewing patterns. Warmer air or poor ventilation shortens the lamp life, as does turning the television on and off frequently.

    Which you probably knew already.

    I would suggest checking the cooling fan and the dust filter which needs regular cleaning to maintain airflow over the lamp.



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lamp replacement may require an internal limp timer reset have a qualified tech replace the lamp.

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