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Need help identifying component U501 on the power supply of a toshiba 40rv525u

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    Need help identifying component U501 on the power supply of a toshiba 40rv525u

    A power surge took out a few components on the power supplies primary. Part U501 is a pmic but it is completely blown and I can't read its part #. I've tried searching for a schematic but there are none available. If someone could identify the part that would be extremely helpful. The power supplies model# is Pk101v0830i. Thanks in advance for any help you guys provide.
    Attached Files

    #2
    Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

    To me, it looks like a Power Integrations TNYxxx chip -- the hard part is determining the "xxx" part. Any clue of those last digits?
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

    Comment


      #3
      Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

      On a similar Toshiba TV's board the U501 has these markings:
      A6069H
      SK942
      17CP
      It's a seven pin IC.
      Board number is: PK101V1000I/FSP245-4F03
      http://www.digikey.com/product-detai...69H-ND/3661844
      Attached Files
      Last edited by tibimakai; 09-04-2013, 01:19 PM.

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        #4
        Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

        That checks out this one is a seven pin as well. Thanks

        Comment


          #5
          Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

          U501 is part # STR-A6251M

          http://pdf1.alldatasheet.com/datashe...TR-A6251M.html

          Comment


            #6
            Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

            I am looking for the part numbers for VS101 and VS102 on the power supply PK101V0830I
            Thanks

            Comment


              #7
              Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

              I am Stuck with same issue but my toshiba pSU board # PK101W0070I
              IC mentioned U501 has 8 legs NOT 7 Legs
              it blown top part ..i can't read the number ..
              can someone please help me to find the number
              its 8 legs..
              this

              Comment


                #8
                Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

                Post deleted.

                Comment


                  #9
                  Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

                  apologize for not picture in previous post...
                  here is picture
                  part mention in RED circle..
                  help appreciated ..thanks in advance..
                  Attached Files
                  this

                  Comment


                    #10
                    Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

                    If its the part circled in red there are numbers on it try using a good magnifying glass.

                    Comment


                      #11
                      Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

                      hello sir,
                      thanks , this is just similar board i tried to use to mention rigt location ..
                      the board which has damage IC is blown from top so i can't read at all.
                      i tried magnifying glass only last 2-3 digit i can read that's all ...
                      its 8 LEG IC ..and same board as shown in image..
                      Last edited by nilesh; 07-08-2016, 06:15 PM.
                      this

                      Comment


                        #12
                        Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

                        OK, after hours of manipulating the picture of U501 using shojimmy photo and searching the FAIRCHILD website.
                        U501 is made by FAIRCHILD P/N FSB117HNY used in your board version.
                        The connections of the IC pins on the board seems to match the app notes.
                        https://www.fairchildsemi.com/design...-design-tools/
                        https://www.fairchildsemi.com/search/?searchText=fps

                        Pictures provided by shojimmy.
                        Attached Files
                        Last edited by budm; 07-08-2016, 06:47 PM.
                        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


                          #13
                          Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

                          Thank you so much BUDM ,
                          much much appriciated , before i post here since 2 days i am trying to fliping lot of website and pictures..but none of has any clear picture neither i am photoshop expert to modify the picture to clear view of number.
                          your effort much much appriciated not just to find the number but also cross verification to make sure that that's the right one.
                          ..thank you everyone to help me..
                          Last edited by nilesh; 07-08-2016, 07:31 PM.
                          this

                          Comment


                            #14
                            Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

                            my Toshiba bdx 1200 blue ray player PSU board is burn it's code u501 can you help me to identify the component

                            Comment


                              #15
                              Re: Need help identifying component U501 on the power supply of a toshiba 40rv525u

                              my Toshiba bdx 1200 blue ray player PSU board is burn it's code u501 can you help me to identify the component
                              Attached Files

                              Comment

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