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KDL-52W5100 10 blinks

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    #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
    #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

      #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

        #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

          #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

            #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

              #7
              Re: KDL-52W5100 10 blinks

              Originally posted by budm View Post
              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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