Sony KDL-52EX700 - 5 Blinks

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  • jason123
    Badcaps Legend
    • Oct 2015
    • 1154
    • USA
    #1

    Sony KDL-52EX700 - 5 Blinks

    I've read some horror stories about this TV series with 5 blinks. I was watching TV at a friends house (Nice set - not 4k but great pic) then all of a sudden the TV shut off. Pushing the Power button, yields switch from red to green LED. Seems like it's going to start, then goes to Red LED. Then Red LED off, and blinks 5 times, and repeat.

    I tried the Display + 5 + Vol - + Pwr, but nothing turns on. Unplugged from wall, pressed the PWR on set for 30 second, replugged it in, no change

    Where do I start Anyone has experience with this that can save some time on troubleshooting? I downloaded the Service manual and the troubleshooting guides from Sony. There is No damage to the panel, went from on, to basically non-functional. Help is appreciated.
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    • diif
      Badcaps Legend
      • Feb 2014
      • 6978
      • England
      #2
      Re: Sony KDL-52EX700 - 5 Blinks

      Page 27 of the service manual. 5 times blinking trouble shooting.

        Comment

        • jason123
          Badcaps Legend
          • Oct 2015
          • 1154
          • USA
          #3
          Re: Sony KDL-52EX700 - 5 Blinks

          Thanks - This error seems to have cause many people headaches - some reported TCON failure, some LCD Damage, Some even just cleaning the LVDS took care of the problem. Just looking for tips on going about this.

            Comment

            • jason123
              Badcaps Legend
              • Oct 2015
              • 1154
              • USA
              #4
              Re: Sony KDL-52EX700 - 5 Blinks

              Shorted panel tabs (board between panel and TCON) was the issue.. non-fixable unfortunately.
              Thanks

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA
                  #5
                  Re: Sony KDL-52EX700 - 5 Blinks

                  The caps on that tab bonding boards none of them shown as shorted?
                  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

                    • jason123
                      Badcaps Legend
                      • Oct 2015
                      • 1154
                      • USA
                      #6
                      Re: Sony KDL-52EX700 - 5 Blinks

                      There were actually burn marks on the flex cables ... too many to attempt a repair. I didn't go further to find the cause. As soon as I disconnected the panel, back light on, sound on, and so on.. so at least I know the components are good and I can get some ca$h back

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