samsung UE32F5000AK led no backlight

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  • painner
    New Member
    • Aug 2011
    • 8
    #1

    samsung UE32F5000AK led no backlight

    samsung UE32F5000AK led no backlight


    Hello I am wondering if anyone can give me some advice I have a Samsung UE32F5000AK when I turn it on the screen stays blank. I can hear the TV working fine and when I hold a bright torch I can see a picture so I think it's the backlight gone. Can anyone advise me how to fix this as I bought another power board and that didn't fix my backlight?
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: samsung UE32F5000AK led no backlight

      It will be an open circuit LED in the backlight array, the TV panel needs to come apart to fix this.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • painner
          New Member
          • Aug 2011
          • 8
          #3
          Re: samsung UE32F5000AK led no backlight

          many thanks for very quick reply so does that mean one of the leds has gone and I have to track down which one . Don't mind taking it apart again had the led strips out the other day wanted to see what voltage they where because I wondered if I could send that voltage through each strip to check if they were blown

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA
              #4
              Re: samsung UE32F5000AK led no backlight

              You can make 3VDC from two AA batteries and put 100 Ohms resistor in series with the positive to limit the through the LED, then you can test each LED on the strip one at a time to find out which one is bad, the Anode is positive, Cathode is negative.
              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

                • painner
                  New Member
                  • Aug 2011
                  • 8
                  #5
                  Re: samsung UE32F5000AK led no backlight

                  many thanks for all your help and very helpful advice will look forward to trying this out

                    Comment

                    • painner
                      New Member
                      • Aug 2011
                      • 8
                      #6
                      Re: samsung UE32F5000AK led no backlight

                      Many thanks found two blown leds jumped that strip to see if works and came on. so now just got to find where to get some spares in UK. Many thanks for you knowledge

                        Comment

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