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Sony KDL-50W800C BLInk 5 times

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    Sony KDL-50W800C BLInk 5 times

    Masta please help. I got problem with sony KDL-50W800C.
    BLINKING 5 times. Suspected tcon board . Bord tcon no is T550HVN08.2 CTRL BD. Anybody exp with this tcon. Maybe can advice . Flash fimware will solve? Coz n short on board
    Attached Files

    #2
    Re: Sony KDL-50W800C BLInk 5 times

    If 5 blinks is the tcon, check for voltage on both sides of the fuse. I see it marked 32V/3A. Second test is to power up the tv with only one side connected at a time from the tcon and see if you get a picture one side.

    Comment


      #3
      Re: Sony KDL-50W800C BLInk 5 times

      Originally posted by neilc6 View Post
      If 5 blinks is the tcon, check for voltage on both sides of the fuse. I see it marked 32V/3A. Second test is to power up the tv with only one side connected at a time from the tcon and see if you get a picture one side.
      +1

      Also "T550HVN08.2 CTRL BD" is the P/N of the Blank PCB not PCB assembly, you need to match the P/N as printed on the bar code sticker.
      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


        #4
        Re: Sony KDL-50W800C BLInk 5 times

        Hye masta. Before i say thanks to both of sifoo. What i do is. I read back bios eprom on tcon. I put on my programmer. Then i backup and i place back bios ic. After that i pwr on with only one tcon. And i got display half. I pwr off then place both tcon cable. Wow display come back. Thanks u all

        Comment


          #5
          Re: Sony KDL-50W800C BLInk 5 times

          hello same problem here.. i got hold of this sony bravia kdl-50w800c the problem is black display with patch white with 5 red blinks immediately i assume its a tcon problem, i bought a tcon but unfortunately when i connect the tcon and power up the unit.. it only displays the logo of sony with the android title then goes black again with 5 red blinks.. what seems to be the problem.. thanks in advance guys..
          Never stop LEARNING because life never stops TEACHING!

          Comment


            #6
            Re: Sony KDL-50W800C BLInk 5 times

            Originally posted by Duranitron View Post
            hello same problem here.. i got hold of this sony bravia kdl-50w800c the problem is black display with patch white with 5 red blinks immediately i assume its a tcon problem, i bought a tcon but unfortunately when i connect the tcon and power up the unit.. it only displays the logo of sony with the android title then goes black again with 5 red blinks.. what seems to be the problem.. thanks in advance guys..
            What happen if you do not have ribbon cables between T-CON and the LCD panel connected, and if you have it connected one at a time?
            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


              #7
              Re: Sony KDL-50W800C BLInk 5 times

              Originally posted by budm View Post
              What happen if you do not have ribbon cables between T-CON and the LCD panel connected, and if you have it connected one at a time?
              tcon is not compatible with my unit.. i already return the new tcon and replaced it with original tcon serial number and it works .. thanks for the time..really appreciate it..
              Attached Files
              Last edited by Duranitron; 10-21-2020, 10:12 PM.
              Never stop LEARNING because life never stops TEACHING!

              Comment


                #8
                Re: Sony KDL-50W800C BLInk 5 times

                Originally posted by Duranitron View Post
                tcon is not compatible with my unit.. i already return the new tcon and replaced it with original tcon serial number and it works .. thanks for the time..really appreciate it..
                Thanks for the follow-up on the repair, I'm glad you get the correct T-CON.
                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


                  #9
                  Re: Sony KDL-50W800C BLInk 5 times

                  Originally posted by Duranitron View Post
                  tcon is not compatible with my unit.. i already return the new tcon and replaced it with original tcon serial number and it works .. thanks for the time..really appreciate it..
                  So that's all you did, was put the original tcon back in and it worked?

                  Comment


                    #10
                    Re: Sony KDL-50W800C BLInk 5 times

                    I think he is saying that he got another new TC-ON board that match the barcode sticker numbers this time, that is what I understand.
                    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


                      #11
                      Re: Sony KDL-50W800C BLInk 5 times

                      Ok that makes more sense.

                      Comment


                        #12
                        Re: Sony KDL-50W800C BLInk 5 times

                        yah i bought a new tcon similar to the serial number of my original tcon. its an eye opener for me not to lean only to the board number but to the serial number.. the two have the same board number but different serial number ...
                        Never stop LEARNING because life never stops TEACHING!

                        Comment


                          #13
                          Re: Sony KDL-50W800C BLInk 5 times

                          the number on the bar code is the PCBA (Printed Circuit Board Assembly) part number.
                          The T550XXXXXXX printed on the PCB is the Blank PCB that can be stuffed with many difference parts to make many required PCBA.
                          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


                            #14
                            Re: Sony KDL-50W800C BLInk 5 times

                            Ohh guys. I just posted this problem related to the same issue may be. I was looking for these 5 blinks on Google but it did not show me any results from this forum. How stupid i am So is that mean that i need to buy another one T-Con with barcode the same like mine one and not only the model?
                            Last edited by Dobsuk; 10-26-2020, 03:25 PM.

                            Comment


                              #15
                              Re: Sony KDL-50W800C BLInk 5 times

                              Indeed, you need to match up those numbers on the sticker, just going by model number is a no no.

                              Comment


                                #16
                                Re: Sony KDL-50W800C BLInk 5 times

                                Thank you. I will have a look for another one T-Con with the same sticker's number and fingers crossed
                                Last edited by Dobsuk; 10-26-2020, 04:43 PM.

                                Comment


                                  #17
                                  Re: Sony KDL-50W800C BLInk 5 times

                                  Any chance anyone has repaired this T-Con for future reference? What chip goes bad similar to ISL9860?

                                  Comment


                                    #18
                                    Re: Sony KDL-50W800C BLInk 5 times

                                    Originally posted by sasser View Post
                                    Masta please help. I got problem with sony KDL-50W800C.
                                    BLINKING 5 times. Suspected tcon board . Bord tcon no is T550HVN08.2 CTRL BD. Anybody exp with this tcon. Maybe can advice . Flash fimware will solve? Coz n short on board

                                    I do have same problem . can you please let me know how you backup e prom please?

                                    Comment


                                      #19
                                      Re: Sony KDL-50W800C BLInk 5 times

                                      In sony tv the lvds cable mostly damaged.check if it is damaged or not.if it is ok then check tcon voltages.if all ok then open left side cable and watch.if same open only right side lvds and watch.if same problem you need to replace tcon.

                                      Comment

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