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

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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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Re: Lamp life

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

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Lamp timer needs reset. This is usually an automatic function. TV detects Increased lamp current from previous failed bulb or weak bulb condition and resets automatically. TV must be unplugged for lamp replacement for this to work. Occasionally it must be reset manually, as below:

1. TV must be in standby mode. (Power off).
2. Press the following buttons on the Remote Commander within a
second of each other:
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contains the Category with the Adjustment Item you want to change.
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Note: Pressing 2 or 5 only changes the categories within the
Service Menu displayed. To change a Category on one of the other
Service Menus, press the JUMP button until the correct Service
Menu is displayed.
3. To change the Adjustment Item, press 1 or 4 on the Remote
4. To change the Data Value, press 3 or 6 on the Remote
Note: To go back to the last saved Data Value, press 0 then ENT
on the Remote Commander to read the memory.
5. To save the changes, press MUTING then ENT to write into
6. To exit service mode, turn the power off by pressing POWER .
Wait 2 minutes before restarting the set to allow the fans to
completely shut down or the Service Menu will appear on the screen.


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Oct 27, 2007 | Mitsubishi WD-52725 52". Rear Projection...

1 Answer


Replace the lamp, also the shut down time is correct the unit must allow plenty of time proper lamp cooling. otherwise the lamp life will be greatly shortend. normal lamp life is 3000 hrs.
lamp replacement may require an internal limp timer reset have a qualified tech replace the lamp.

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