Viewsonic PJ50D DLP Projector cuts out

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  • dzak66
    New Member
    • Jan 2009
    • 4
    #1

    Viewsonic PJ50D DLP Projector cuts out

    Hi all,
    does anyone have any info on Viewsonic PJ50D.
    My unit cuts out after about 30 seconds use.
    I suspect the power supply is faulty (possibly overheating) as the power indicator light goes out also and doesn't come back on for about 10 minutes.
    I pulled it down and carried out a visual inspection on the board and caps, all seems ok so i resoldered the board.
    Worked for one night but the problem returned the next day.
    Any ideas of common faults or links to circuit data etc would be appreciated

    dzak
    Tags: None
    • dzak66
      New Member
      • Jan 2009
      • 4
      #2
      Re: Viewsonic PJ50D DLP Projector cuts out

      what about a good source for smps unit repairs/testing & info

        Comment

        • dzak66
          New Member
          • Jan 2009
          • 4
          #3
          Re: Viewsonic PJ503D DLP Projector cuts out

          woops stuffed up the model number in the title.
          Any help peeps?

            Comment

            • momaka
              master hoarder
              • May 2008
              • 12170
              • Bulgaria
              #4
              Re: Viewsonic PJ50D DLP Projector cuts out

              Check all of the solder joints really carefully with a magnifying glass. Quite possible that some of them may be cracked.
              If possible, post some pictures of the boards here (but please use this forum's Manage Attachments feature rather than using an off-site host). Hopefully, that will also get more people to respond.

                Comment

                • dzak66
                  New Member
                  • Jan 2009
                  • 4
                  #5
                  Re: Viewsonic PJ50D DLP Projector cuts out

                  Thanks,
                  I have already resoldered the power supply board but didn't find any dodgy joints. I will pull it apart again soon and recheck and take some photos.

                  What i have also found is that if i leave the unit on standby it will always cut out after 30 seconds or so, but if I have it switched off at the wall until i am ready to use it the projector may go all night without a problem ???

                    Comment

                    • momaka
                      master hoarder
                      • May 2008
                      • 12170
                      • Bulgaria
                      #6
                      Re: Viewsonic PJ50D DLP Projector cuts out

                      Originally posted by dzak66
                      What i have also found is that if i leave the unit on standby it will always cut out after 30 seconds or so, but if I have it switched off at the wall until i am ready to use it the projector may go all night without a problem ???
                      Interesting. Perhaps the standby section of the power supply is doing something funny when it warms up. Definitely post some pictures, especially of the power supply.

                        Comment

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