HP 1730 blank while power on

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  • Azagtoth
    Rookie
    • Oct 2013
    • 3
    • Hrvatska
    #1

    HP 1730 blank while power on

    I have problem with an HP1730 which turns of by itself after aproximateley 10-15 minutes.Had some bulged caps on power board, and i remove them , put new ones but problem persists!I checked also logic board (has Benq logo on it) and everything seems in order.i also checked for dimmed screen, but no image at all.It simply turns itself off while power led is stil shining continuously.
    If there is any solution please suggest...im out of ideas!
    Thanks in advance!
    Tags: None
    • 1supertech
      Badcaps Veteran
      • Apr 2012
      • 384
      • USA
      #2
      Re: HP 1730 blank while power on

      Replace all the caps not just the ones that where bulged re solder inverter transformers
      you may have bad CCFL bulbs. test CCFL bulbs could be useful. Pictures of power board and logic board would be nice.

        Comment

        • jtamad44
          Senior Member
          • Apr 2013
          • 145
          • israel
          #3
          Re: HP 1730 blank while power on

          you can check all caps with LCR/ESR meter if you have, so you can easily find the bad caps like high ESR but low value.

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA
              #4
              Re: HP 1730 blank while power on

              This may help:
              http://elektrotanya.com/?q=showresul...nitor&kat2=all

              Test lamps:
              https://www.badcaps.net/forum/showth...er+testing+cfl
              Never stop learning
              Basic LCD TV and Monitor troubleshooting guides.
              http://www.badcaps.net/forum/showthr...956#post305956

              Voltage Regulator (LDO) testing:
              http://www.badcaps.net/forum/showthr...999#post300999

              Inverter testing using old CFL:
              http://www.badcaps.net/forum/showthr...er+testing+cfl

              Tear down pictures : Hit the ">" Show Albums and stories" on the left side
              http://s807.photobucket.com/user/budm/library/

              TV Factory reset codes listing:
              http://www.badcaps.net/forum/showthread.php?t=24809

                Comment

                • Azagtoth
                  Rookie
                  • Oct 2013
                  • 3
                  • Hrvatska
                  #5
                  Re: HP 1730 blank while power on

                  Thanks a million , guys...i will check this out as soon as i get home!

                    Comment

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