LCD micorprocessors

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  • angelos
    Badcaps Veteran
    • Dec 2012
    • 568
    • South Africa

    #1

    LCD micorprocessors

    Hi there, i have always wondered about the processors that run the LCD TV. If i had one whose micro processor was shorted and i ordered a brand new one and managed to re solder it on the board would it work? I mean after all where does the operating system reside? Is it in the memory chip (25Q32) or is it loaded in the ROM of the micro processor? Just wondering???
    If my question is not clear I can elaborate further. I am not talking about an LG or Samsung board but rather the TSUMV59XU-Z1 chip used in these cheaper Chinese sets.
  • Davi.p
    Hobbist Tech
    • Sep 2009
    • 4308
    • Italy - Milan

    #2
    Re: LCD micorprocessors

    What do you mean for lcd microprocessor? The main chip in a tcon is not a microprocessor, but have something similar to a program, it is stored inside itself when outside there isn't a flash, or outside when there is an external flash.. the i2c eeprom doesn't apply, it's only settings..

    Comment

    • lotas
      Badcaps Legend
      • Jan 2016
      • 4562
      • Russia

      #3
      Re: LCD micorprocessors

      If we are talking about TSUMV59XU-Z1 (MStar), then the firmware is in spi flash 25Q32, just change the processor and that's it, if the firmware remains alive, then everything will work.

      Comment

      • Davi.p
        Hobbist Tech
        • Sep 2009
        • 4308
        • Italy - Milan

        #4
        Re: LCD micorprocessors

        It it's the main processor, what about the unique codes stored in it like mac address etc..? Is a new chip virgin and have to be initialised? i know there are special factory software to do these jobs.. these softwares like the other ones to access and program system by uart are no more available around..
        Last edited by Davi.p; 10-19-2022, 05:53 AM.

        Comment

        • lotas
          Badcaps Legend
          • Jan 2016
          • 4562
          • Russia

          #5
          Re: LCD micorprocessors

          This is a normal, simple scaler controller, it does not have any MAC, etc. All settings, panel and remote control codes are stored in spi flash.
          Attached Files

          Comment

          • Davi.p
            Hobbist Tech
            • Sep 2009
            • 4308
            • Italy - Milan

            #6
            Re: LCD micorprocessors

            Are you advicing an universal board? For me them causes a lot of trouble with connectors /case management and an annoying visible external ir receiver.. but anyway it's a matter of flavours..

            Comment

            • lotas
              Badcaps Legend
              • Jan 2016
              • 4562
              • Russia

              #7
              Re: LCD micorprocessors

              I do not advise anything, I just explained that replacing this controller on the motherboard will not create any problems.

              Comment

              • angelos
                Badcaps Veteran
                • Dec 2012
                • 568
                • South Africa

                #8
                Re: LCD micorprocessors

                Originally posted by lotas
                This is a normal, simple scaler controller, it does not have any MAC, etc. All settings, panel and remote control codes are stored in spi flash.
                Have you ordered some from Aliexpress and soldered it into a unit and it worked?

                Comment

                • lotas
                  Badcaps Legend
                  • Jan 2016
                  • 4562
                  • Russia

                  #9
                  Re: LCD micorprocessors

                  Originally posted by angelos
                  Have you ordered some from Aliexpress and soldered it into a unit and it worked?
                  No, I personally did not order, but I know colleagues who changed and there were no problems.
                  But it can also fly off the firmware of his native.
                  Last edited by lotas; 10-20-2022, 07:53 AM.

                  Comment

                  • angelos
                    Badcaps Veteran
                    • Dec 2012
                    • 568
                    • South Africa

                    #10
                    Re: LCD micorprocessors

                    Ok, i will order and sort this out. Thank you for your advice.

                    Comment

                    • Davi.p
                      Hobbist Tech
                      • Sep 2009
                      • 4308
                      • Italy - Milan

                      #11
                      Re: LCD micorprocessors

                      check better because there are prettiest board than the simply one posted by lotas..

                      Comment

                      • lotas
                        Badcaps Legend
                        • Jan 2016
                        • 4562
                        • Russia

                        #12
                        Re: LCD micorprocessors

                        Originally posted by Davi.p
                        check better because there are prettiest board than the simply one posted by lotas..
                        What do you mean?

                        Comment

                        • Davi.p
                          Hobbist Tech
                          • Sep 2009
                          • 4308
                          • Italy - Milan

                          #13
                          Re: LCD micorprocessors

                          in the past i have seen on AliExpress more powerful universal boards than the one you posted.. i was writing to the op not you.. bye..

                          Comment

                          • lotas
                            Badcaps Legend
                            • Jan 2016
                            • 4562
                            • Russia

                            #14
                            Re: LCD micorprocessors

                            I posted a photo of the board on which this controller is used (TSUMV59XU-Z1) and showed that there is no need to program anything on it (mac address ...).

                            Comment

                            • Davi.p
                              Hobbist Tech
                              • Sep 2009
                              • 4308
                              • Italy - Milan

                              #15
                              Re: LCD micorprocessors

                              SORRY! I had not understood.. thanks..

                              Comment

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