TCL 65S450F no logo, bleeping sounds?

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  • nomoresonys
    Badcaps Legend
    • Jan 2013
    • 12086
    • U.S.

    #81
    Originally posted by CapLeaker

    Be careful what you wish for here. Look at German politics. They had a 3i party coalition government between SPD, FDP and Greens aka traffic light coalition (red, yellow, green). Needless to say nothing much got done.
    I hear that, Seems like nothing works that they've tried so far, It's a damn shame when the countries with dictators seem to be getting more done that Our "democracy"

    Comment

    • CapLeaker
      Leaking Member
      • Dec 2014
      • 8033
      • Canada

      #82
      O.k. Back to topic.
      I just effed around with that monkey box. I’ve got no panel power (even with the LVDS disconnected) and one inductor shorted full to GND. That explains no display of any sort ( lack screen).
      Attached Files

      Comment

      • lotas
        Badcaps Legend
        • Jan 2016
        • 4486
        • Russia

        #83
        This is how it should be, in t-con there is one inductor on ground to convert negative voltage relative to ground (VOFF = VGL = VGOFF = VEEG = from -5V to -9V).

        Comment

        • CapLeaker
          Leaking Member
          • Dec 2014
          • 8033
          • Canada

          #84
          Originally posted by lotas
          This is how it should be, in t-con there is one inductor on ground to convert negative voltage relative to ground (VOFF = VGL = VGOFF = VEEG = from -5V to -9V).
          I just just came back upstairs again and figured that one out, because the diode above it is -10V. So VGL popped right into my mind.
          However, I don’t have any panel power to speak of. Maybe 1V?

          Comment

          • lotas
            Badcaps Legend
            • Jan 2016
            • 4486
            • Russia

            #85
            You need to find out how the t-con (12v) is powered, where the power is supplied from and whether it is supplied in general...
            Attached Files

            Comment

            • EazyBone
              Badcaps Legend
              • Jun 2023
              • 1306
              • United states

              #86
              You also got a ribbon that is poorly set and maybe shorting stuff

              Comment

              • CapLeaker
                Leaking Member
                • Dec 2014
                • 8033
                • Canada

                #87
                Originally posted by EazyBone
                You also got a ribbon that is poorly set and maybe shorting stuff
                yeah, that I know... it still shows that in the picture as I keep "recycling" it. lol Ignore that ribbon, it sits straight for a while now.

                lotas that plug on the bottom right is the speaker left. There is the same plug on the other side for speaker right. I'll see what I can measure at that point you circled tomorrow morn.

                Comment

                • nomoresonys
                  Badcaps Legend
                  • Jan 2013
                  • 12086
                  • U.S.

                  #88
                  Weird tv, who do you get help from, amazon since it's their os or tcl? amazon has a chat feature, not sure about tcl. Whenever I use a chat feature I do my damndest to keep them talking til it's fixed, if they act like they want to give up, I say I need this fixed boost me up the ladder. Sometimes you have to try the resets several times, maybe try turn tv on for a minute then just unplug it from power, then hold power button on tv while plugging in hold button til you see screen come on then let go, go for a minute, no joy, try less maybe just a 10 count or 15 then let go, play with the times like that. I can't really see any reason why this tv won't reset. Always hated fire devices because EVERY single time you turn it on it checks for updates and forces them, no choice in the matter, that's why I only bothered with one original fire tv box and one stick, some friends would buy about every one that came out.
                  Last edited by nomoresonys; 08-17-2024, 08:27 PM.

                  Comment

                  • Diah
                    Badcaps Legend
                    • Feb 2013
                    • 6349
                    • Germany

                    #89
                    this TV PSU always active. " r´thought it had only One Opto" because its Fire TV. I/O signal to drive the Panel depending on the one Soc and its firmware script. any damage at FW the Soc will be blind.

                    you have on MB the socket PW1 which i think its the key of supplying panel V. LVDS both had no sign of Panel V rail.

                    filter coil you thing it shorted from Photo its sitting on GND.

                    so let see the whole back of the set to follow Panel rail .

                    Comment

                    • CapLeaker
                      Leaking Member
                      • Dec 2014
                      • 8033
                      • Canada

                      #90
                      Originally posted by Diah
                      this TV PSU always active. " r´thought it had only One Opto" because its Fire TV. I/O signal to drive the Panel depending on the one Soc and its firmware script. any damage at FW the Soc will be blind.

                      you have on MB the socket PW1 which i think its the key of supplying panel V. LVDS both had no sign of Panel V rail.

                      filter coil you thing it shorted from Photo its sitting on GND.

                      so let see the whole back of the set to follow Panel rail .
                      Here we go. Went back to it for a bit this morning. I do have 12Vdc panel power on some places on the board, but nothing going to the screen. See pictures attached. The LVDS data lines has no signals either. PW1 is just going to the PSU.
                      I am not convinced the panel is dead. I think it is that main board that’s faulty.
                      Attached Files
                      Last edited by CapLeaker; 08-18-2024, 06:31 AM.

                      Comment

                      • Diah
                        Badcaps Legend
                        • Feb 2013
                        • 6349
                        • Germany

                        #91
                        Originally posted by CapLeaker

                        Here we go. Went back to it for a bit this morning. I do have 12Vdc panel power on some places on the board, but nothing going to the screen. See pictures attached. The LVDS data lines has no signals either. PW1 is just going to the PSU.
                        I am not convinced the panel is dead. I think it is that main board that's faulty.
                        yours Panel didn't need 12VCC... as i wrote before its ONE Soc. system design like the way on Mobile but with large screen .. I2C on this One Soc for Video / panel worked within the section of Kernel at Firmware... yours Kernel distributed much likely during update or et turned off and on again ..
                        you still have 5V USB VCC and first power _On in tact ... firmware flashing are the answer always no HW issue at my eyes.

                        Comment

                        • nomoresonys
                          Badcaps Legend
                          • Jan 2013
                          • 12086
                          • U.S.

                          #92
                          Originally posted by Diah

                          yours Panel didn't need 12VCC... as i wrote before its ONE Soc. system design like the way on Mobile but with large screen .. I2C on this One Soc for Video / panel worked within the section of Kernel at Firmware... yours Kernel distributed much likely during update or et turned off and on again ..
                          you still have 5V USB VCC and first power _On in tact ... firmware flashing are the answer always no HW issue at my eyes.
                          That sounds very likely, probably why it refuses to reset.

                          Comment

                          • nomoresonys
                            Badcaps Legend
                            • Jan 2013
                            • 12086
                            • U.S.

                            #93
                            These fire tvs are way too dependent on being online, what if someone just wanted to hook up an antenna and watch over the air non-compressed programs like the person in the LG thread, is it even possible without being online? I hate always having to fiddle around with something just to look at the news or whatever, I keep it simple. Adjust the tv to be dumb and use a smart streamer, from what I understand it doesn't wear out the eMMC chip as fast either.
                            Last edited by nomoresonys; 08-18-2024, 07:13 AM.

                            Comment

                            • Diah
                              Badcaps Legend
                              • Feb 2013
                              • 6349
                              • Germany

                              #94
                              he need to take out the heatsink of the Soc and tell the name of the Soc. if its MSTAR... so the tools will help flashing

                              Comment

                              • Diah
                                Badcaps Legend
                                • Feb 2013
                                • 6349
                                • Germany

                                #95
                                Originally posted by nomoresonys
                                These fire tvs are way too dependent on being online, what if someone just wanted to hook up an antenna and watch over the air non-compressed programs like the person in the LG thread, is it even possible without being online?
                                no need to be online to receive antenna or cable or sat.... but the set should be activated first with user profile

                                Comment

                                • nomoresonys
                                  Badcaps Legend
                                  • Jan 2013
                                  • 12086
                                  • U.S.

                                  #96
                                  Originally posted by Diah

                                  no need to be online to receive antenna or cable or sat.... but the set should be activated first with user profile
                                  Thanks Diah, I thought that should be the case, they make it pretty tough for the non-tech inclined like some seniors for example AND me.
                                  Last edited by nomoresonys; 08-18-2024, 07:40 AM.

                                  Comment

                                  • CapLeaker
                                    Leaking Member
                                    • Dec 2014
                                    • 8033
                                    • Canada

                                    #97
                                    Originally posted by Diah
                                    he need to take out the heatsink of the Soc and tell the name of the Soc. if its MSTAR... so the tools will help flashing
                                    Thanks for post 91. That was helpful to understand why there is no 12V going directly to the panel. Never thought of it that way. The Soc is an Amilogic. So now I am out of clue. The Mstar I know, but this Amilogic thing… nope.
                                    Attached Files

                                    Comment

                                    • CapLeaker
                                      Leaking Member
                                      • Dec 2014
                                      • 8033
                                      • Canada

                                      #98
                                      Originally posted by Diah

                                      no need to be online to receive antenna or cable or sat.... but the set should be activated first with user profile
                                      I didn’t get that far. I turned it on and worked, Connected cables to it including Ethernet. Then it said new firmware found and it did its thing. So I left the room for 10mins. Came back and found the TV in this state, Nobody touched it in between.

                                      Comment

                                      • CapLeaker
                                        Leaking Member
                                        • Dec 2014
                                        • 8033
                                        • Canada

                                        #99
                                        Originally posted by nomoresonys

                                        Thanks Diah, I thought that should be the case, they make it pretty tough for the non-tech inclined like some seniors for example AND me.
                                        I should set this post as it being the answer.

                                        Comment

                                        • Diah
                                          Badcaps Legend
                                          • Feb 2013
                                          • 6349
                                          • Germany

                                          #100
                                          Originally posted by CapLeaker

                                          Thanks for post 91. That was helpful to understand why there is no 12V going directly to the panel. Never thought of it that way. The Soc is an Amilogic. So now I am out of clue. The Mstar I know, but this Amilogic thing… nope.
                                          you are lucky as the Soc Amlogic.. it had bootloader section on it which we can trick it with PC..connect yours TV with male to male USB with PC let see how the PC show
                                          here we are with tools

                                          Attached Files
                                          Last edited by Diah; 08-18-2024, 08:17 AM.

                                          Comment

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