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Toshiba 32AV933G stuck on stby

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    Toshiba 32AV933G stuck on stby

    Hello, I have this TOSHIBA 32AV933G and it is stuck on standby LED (red). It doesn't turn on and the 12V is missing. Anyone has any experience with these PSUs and what to check? (DPS-140SP A)

    #2
    Re: Toshiba 32AV933G stuck on stby

    Maybe the firmware has crashed.
    Attached Files

    Comment


      #3
      Re: Toshiba 32AV933G stuck on stby

      Are you getting a change at your PS_on terminal?
      I assume no responsibility for any stupid suggestions I might post.

      Comment


        #4
        Re: Toshiba 32AV933G stuck on stby

        Originally posted by dskall View Post
        Are you getting a change at your PS_on terminal?
        Nope, 0,0V at PS_ON. Any other idea?

        Comment


          #5
          Re: Toshiba 32AV933G stuck on stby

          Originally posted by lotas View Post
          Maybe the firmware has crashed.
          I thought about this too. Do you think the 25Q64 needs programming?

          Comment


            #6
            Re: Toshiba 32AV933G stuck on stby

            Originally posted by WhiteWolfHellas View Post
            I thought about this too. Do you think the 25Q64 needs programming?
            What is your motherboard number and panel number?

            Comment


              #7
              Re: Toshiba 32AV933G stuck on stby

              If you don't try you don't know. I think I wrote 993 wrong instead of 933.
              Attached Files
              Last edited by yokoono; 01-18-2022, 02:59 AM.

              Comment


                #8
                Re: Toshiba 32AV933G stuck on stby

                Originally posted by lotas View Post
                What is your motherboard number and panel number?
                Panel: LTA320AP05
                MB: 32AV933_MAIN BD 11580673-MB00309-60EB40M0KB02P
                Attached Files

                Comment


                  #9
                  Re: Toshiba 32AV933G stuck on stby

                  Originally posted by dskall View Post
                  Are you getting a change at your PS_on terminal?
                  I just injected 3,3V with my bench PSU to PS_ON and 12V and 24V appeared, so my PSU is OK. The problem is the main board?

                  Comment


                    #10
                    Re: Toshiba 32AV933G stuck on stby

                    Originally posted by WhiteWolfHellas View Post
                    Panel: LTA320AP05
                    MB: 32AV933_MAIN BD 11580673-MB00309-60EB40M0KB02P
                    Try under your panel.
                    Attached Files

                    Comment


                      #11
                      Re: Toshiba 32AV933G stuck on stby

                      Originally posted by lotas View Post
                      Try under your panel.
                      I just removed it, programmed it then resoldered it back to the main board, still the same unfortunately.

                      Comment


                        #12
                        Re: Toshiba 32AV933G stuck on stby

                        Check all the voltages on the motherboard inductors, maybe there is no voltage or the voltage on them is too low.
                        Attached Files

                        Comment


                          #13
                          Re: Toshiba 32AV933G stuck on stby

                          Check your power on and ir for voltage and change when you press buttons. Try heating up main chip and see if it comes on, BGA problem. 3.3v on pin8 of eeprom. 1.2v for processor core. Voltage at oscillator.
                          Last edited by dskall; 01-18-2022, 10:50 AM.
                          I assume no responsibility for any stupid suggestions I might post.

                          Comment


                            #14
                            Re: Toshiba 32AV933G stuck on stby

                            Did you check the solder joints on the powersupply?

                            Comment


                              #15
                              Re: Toshiba 32AV933G stuck on stby

                              Originally posted by dskall View Post
                              Check your power on and ir for voltage and change when you press buttons. Try heating up main chip and see if it comes on, BGA problem. 3.3v on pin8 of eeprom. 1.2v for processor core. Voltage at oscillator.
                              I see voltage change when I press buttons on the remote and there are 3,3V on pin 8 of eeprom.

                              Comment


                                #16
                                Re: Toshiba 32AV933G stuck on stby

                                Originally posted by nomoresonys View Post
                                Did you check the solder joints on the powersupply?
                                PSU was checked for cold solder joints, nothing suspicious.

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