KDL-52W5100 10 blinks

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  • freakaftr8
    Badcaps Legend
    • Oct 2012
    • 3743
    • USA
    #1

    KDL-52W5100 10 blinks

    Hey all. picked up this TV last night from the owner that TV works fine and then turned it on the next day the find powering on off 3 times and then a blinking 10 red light.

    already went through checking fuses on all boards and proper voltage is are being given to the mainboard. From what I gather this is an IC 7000 problem on the mainboard. Apparently this board is known for all sorts of problems. At one point I got the power on at least showing the back lights for a moment and then it would just sit there with no backlight but it didn't power cycle anymore the green light stayed on.

    apparently ic 7000 is a regulator for the 5V and 10v? Going to tcon.

    any thoughts I'm going to get more in depth with this tonight
    Did I leave the soldering iron on?
    Tags: None
    • freakaftr8
      Badcaps Legend
      • Oct 2012
      • 3743
      • USA
      #2
      Re: KDL-52W5100 10 blinks

      Correction. Ic7000 regulates the 10.5v and 5v feeding the tcon. Done on the BU mainboard.
      Did I leave the soldering iron on?

        Comment

        • freakaftr8
          Badcaps Legend
          • Oct 2012
          • 3743
          • USA
          #3
          Re: KDL-52W5100 10 blinks

          Well this issue refers to the microprocessor error. Is this the main ic?
          Did I leave the soldering iron on?

            Comment

            • freakaftr8
              Badcaps Legend
              • Oct 2012
              • 3743
              • USA
              #4
              Re: KDL-52W5100 10 blinks

              well I heated up the back of the main board and it started working go figure and staying on
              Did I leave the soldering iron on?

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA
                  #5
                  Re: KDL-52W5100 10 blinks

                  Well keep us posted, I look at the service manual and it talks about "Watch dog timer to track uproc, not to record error". I wonder exactly what it means, I did not have the time to read through the whole manual yet.
                  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

                    • freakaftr8
                      Badcaps Legend
                      • Oct 2012
                      • 3743
                      • USA
                      #6
                      Re: KDL-52W5100 10 blinks

                      This is the second kdl-52w5100 I repaired with heat. The first one was the tcon. Power with backlight and sound no picture. It never failed yet.

                      Then this one. Hit the back of the BU board and viola.
                      I'm stumped.
                      Did I leave the soldering iron on?

                        Comment

                        • freakaftr8
                          Badcaps Legend
                          • Oct 2012
                          • 3743
                          • USA
                          #7
                          Re: KDL-52W5100 10 blinks

                          Originally posted by budm
                          Well keep us posted, I look at the service manual and it talks about "Watch dog timer to track uproc, not to record error". I wonder exactly what it means, I did not have the time to read through the whole manual yet.
                          Yes the WDT watches IC7000 correct? But ic7000 is a voltage regulator it seems. I'm stumped. Its gotta be a cold solder connection. Still working thou
                          Did I leave the soldering iron on?

                            Comment

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