please help identify this diode

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  • shaunbt123
    Senior Member
    • Nov 2012
    • 119
    • uk
    #1

    please help identify this diode

    im working through my tv power supply board and i found a diode which appears shorted.the best way i can describe the diode is clear glass/plastic with a single yellow band.i have tried taking pics but cannot focus in clear enough.
    thank you.
    Tags: None
    • selldoor
      Slow Learner
      • Dec 2010
      • 7870
      #2
      Re: please help identify this diode

      Doubt if there is a chance better to post a picture of the board it came from with a close up of where it is and the board designator ZD??? can you find a schematic?

      There is no fixed marking agreed between manufacturers the yellow band just signifies cathode ( If I remember correctly)
      Please upload pictures using attachment function when ask for help on the repair
      http://www.badcaps.net/forum/showthread.php?t=39740

        Comment

        • shaunbt123
          Senior Member
          • Nov 2012
          • 119
          • uk
          #3
          Re: please help identify this diode

          thanks for your reply,on the board is just says.D830,however i de-soldered the diode then tested again, and it tested fine.

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA
              #4
              Re: please help identify this diode

              It may be connected in parallel with a low ohm resistor.
              Make and Model of the TV?
              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

                • shaunbt123
                  Senior Member
                  • Nov 2012
                  • 119
                  • uk
                  #5
                  Re: please help identify this diode

                  thank you for your help, its from a toshiba 32AV504D power supply.

                    Comment

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