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Help with Sony KDL-37S5500 TV Display issue please

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    Help with Sony KDL-37S5500 TV Display issue please

    Hello everyone thank you in advance for taking your time to help me solve this issue.

    I have a screen that is showing a negative look or low pixel resolution. I have attached a photo here of the current issue.

    I did some research and everyone pointed to a small chip on one PCB that's was the cause on the T-CON LVDS BOARD. So I managed to locate another board same version. I swapped out the board only not to have solved the problem to my disappointment.

    So here I am asking if anyone has some advice in regards to this, is there another main cause.

    All the cables where cleaned and re-seated.

    I've also attached the board that I changed out.

    Thank you all in advance for any help.
    Attached Files

    #2
    Re: Help with Sony KDL-37S5500 TV Display issue please

    Try a factory reset, no joy, try a firmware update, two pretty easy things to try. Can you take a better close up picture of the tcon? can't see any detail in that one.
    Last edited by nomoresonys; 02-01-2022, 12:15 PM.

    Comment


      #3
      Re: Help with Sony KDL-37S5500 TV Display issue please

      Any other work done to it? Maybe wrong format.
      I assume no responsibility for any stupid suggestions I might post.

      Comment


        #4
        Re: Help with Sony KDL-37S5500 TV Display issue please

        Good point Dskall, might need to go in and change the format.

        Comment


          #5
          Re: Help with Sony KDL-37S5500 TV Display issue please

          Hi all

          To nomoresonys : Please see attached files of T-con board close up.
          How do you propose to do factory reset, or a firmware update please.

          To dskall :
          No other work to my knowledge.
          Maybe wrong format ( in which sense please)

          Are you referring to bit i.e. 8 to 16 or 32 bit I could not see any setting that referred to this.

          Thank you for assistants regarding this.
          Attached Files

          Comment


            #6
            Re: Help with Sony KDL-37S5500 TV Display issue please

            write over here the main chip label of the t-con not clear at photo.. some certain chips known by Gama fault.

            Comment


              #7
              Re: Help with Sony KDL-37S5500 TV Display issue please

              He has the RM5101 (AS15) gamma.

              Comment


                #8
                Re: Help with Sony KDL-37S5500 TV Display issue please

                Check the VG voltages and right them down. The test points are VG1 ~ VG21
                VG1-- __
                VG2-- __

                VG21-- __

                The voltage should be fairly liner from VG1 to VG21

                Comment


                  #9
                  Re: Help with Sony KDL-37S5500 TV Display issue please

                  If those things check out, for the factory reset you can try this: menu options: Select Device Preferences → Reset → Factory data reset → Erase everything → Yes, might work your model may be different, would check the chip and all on tcon as suggested first.

                  Comment


                    #10
                    Re: Help with Sony KDL-37S5500 TV Display issue please

                    He did say he replaced boards, but possible they both had same problem.
                    I assume no responsibility for any stupid suggestions I might post.

                    Comment


                      #11
                      Re: Help with Sony KDL-37S5500 TV Display issue please

                      It is a sony, every time you sneeze you should update a sony, lol.

                      Comment


                        #12
                        Re: Help with Sony KDL-37S5500 TV Display issue please

                        Hi everyone

                        Diah : I have attached better photo's in macro so you can read the chip ID better.

                        Lotas : Please see attached, does this chip have a gamma issue, and which chipset should I have to avoid this issue.

                        dskall : Yes I did think that myself as I can't confirm the other board that I purchased was good other than what the seller stated. If that's not correct then we are looking at a different problem but everyone leads to this card, to be the source of the issue.

                        R_J : Where are these test points VG1 ~ VG21 located you are referring to please.

                        Nomoresonys : I did reset the software when I went into the service side looking for a pixel bit size nothing so I reset and still the same no change.

                        How do I update the Sony having never done one before.

                        Thank you kindly for your help.
                        Attached Files

                        Comment


                          #13
                          Re: Help with Sony KDL-37S5500 TV Display issue please

                          yours photo .. yes this is the fault gama chip

                          take look on this video

                          Comment


                            #14
                            Re: Help with Sony KDL-37S5500 TV Display issue please

                            They are scattered but VG1 > vg19 are test points. I would access service menu and make sure you are on right lvds format.
                            I assume no responsibility for any stupid suggestions I might post.

                            Comment


                              #15
                              Re: Help with Sony KDL-37S5500 TV Display issue please

                              Hi everyone

                              Diah: Do you know the best replacement chip that does not have gamma issues please.

                              Comment


                                #16
                                Re: Help with Sony KDL-37S5500 TV Display issue please

                                Just found this:

                                https://www.youtube.com/watch?v=bAQrDV_AOg0

                                Same board he replace's the IC with AS15 G at 8.21 in the video and solves the issue.

                                Please correct me if I am wrong but the replacement IC's are
                                AS15F, AS15 G, AS15 U, AS15 H, AS15 HF, AS15 AF.

                                This replaces the:
                                RW5101
                                A0W936.1
                                0930A5TG

                                Advice please.

                                Comment


                                  #17
                                  Re: Help with Sony KDL-37S5500 TV Display issue please

                                  Originally posted by WiseMoves View Post
                                  Hi everyone

                                  Diah: Do you know the best replacement chip that does not have gamma issues please.
                                  No guarantee on this chip.. could remain good over 15 years and more or after one months cut the gamma so replace it same with out thinking on good or better,

                                  Comment


                                    #18
                                    Re: Help with Sony KDL-37S5500 TV Display issue please

                                    Originally posted by WiseMoves View Post
                                    Just found this:

                                    https://www.youtube.com/watch?v=bAQrDV_AOg0

                                    Same board he replace's the IC with AS15 G at 8.21 in the video and solves the issue.

                                    Please correct me if I am wrong but the replacement IC's are
                                    AS15F, AS15 G, AS15 U, AS15 H, AS15 HF, AS15 AF.

                                    This replaces the:
                                    RW5101
                                    A0W936.1
                                    0930A5TG

                                    Advice please.
                                    It looks like the RM5101 replaces the AS15-xx

                                    Comment


                                      #19
                                      Re: Help with Sony KDL-37S5500 TV Display issue please

                                      RM is Original Taiwanese .. AS Chinese ( Main Land ) COPY

                                      Comment


                                        #20
                                        Re: Help with Sony KDL-37S5500 TV Display issue please

                                        Originally posted by R_J View Post
                                        It looks like the RM5101 replaces the AS15-xx
                                        Indeed the AS15X replace this one. If you find a RM5101 they are far more expensive than the AS15x range. The RM5101 are far more reliable than the AS15X ics though I have found.

                                        Comment

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