Question about ViewSonic PJ402D DLP Projector

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DIY lamp I hook a 110V 100W bulb to the pj402d. It lit up for 5 sec. then it turned off. No damage was done to the bulb or projector. Is there a cheap way to replace the bulb with something else? There must be a modification to the sensor circuit that will allow a substitute bulb to operate properly.

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I had the same problem awhile back and looking around for an answer i found this.
http://recklessphilosophers.com/2008/05/02/home-theatre-for-63--dlp-pj-retrofit-for-7-bulb-instead-of-300.aspx

Posted on May 22, 2008

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Hello :

It must be overheating problem . Check the fans . If the fans run properly , then you need to check the fuse or the power PCB [printed circuit board ] . If everything is okay with all of those , then I recommend you to replace the bulb .

Here I'll tell you how to replace it :


  1. Make sure that your power switch is off and that the power cord is unplugged from the electrical socket.
    It is also wise to unplug any other cables and label them in order to restore them in the right way once the lamp is replaced.
  2. In order to see the lamp, remove the access handle on the outside cover. You may need to use a screwdriver.
  3. Pull out the used lamp and clean the relevant parts using micro fiber products and not paper.
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  4. Insert the new lamp into the projector carefully avoiding touching the glass of the lamp itself.
    Touching the lamp will deposit skin oil that will likely damage any new lamp during use.
  5. Reassemble the access panel, repluge the cables and power up the projector.

Things You'll Need:

Warning:
  • avoid touching the bare projector lamp

please rate !.

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