Panasonic Toughbook CF-52 IC Identification

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  • adiserwis
    Member
    • Nov 2013
    • 14
    • UK
    #1

    Panasonic Toughbook CF-52 IC Identification

    Hello everyone,

    Could someone please identify the burned element on CF-52MK3 board?
    Not much information on those boards and don't have spare one at the moment
    Thank you in advance
    Attached Files
    Last edited by adiserwis; 07-19-2021, 06:47 AM. Reason: Picture link missing
    Tags: None
    • SMDFlea
      Super Moderator
      • Jan 2018
      • 21483
      • UK
      #2
      Re: Panasonic Toughbook CF-52 IC Identification

      Post the silkscreened motherboard part number,there might be a schematic available, and post the part number on the chip.

      .
      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

        Comment

        • adiserwis
          Member
          • Nov 2013
          • 14
          • UK
          #3
          Re: Panasonic Toughbook CF-52 IC Identification

          Thanks for reply,

          Motherboard is CF-52MK3 DFU1912ZA (1)
          Chip is almost completely burned, only readable part is "ADM2"
          Attached Files
          Last edited by adiserwis; 07-19-2021, 08:53 AM.

            Comment

            • mon2
              Badcaps Legend
              • Dec 2019
              • 14596
              • Canada
              #4
              Re: Panasonic Toughbook CF-52 IC Identification

              ADM = Analog Devices.

              Wonder if this is a charge-pump style RS232 transceiver @ 28 pins?

              Did this laptop feature a RS232 serial port ?

                Comment

                • adiserwis
                  Member
                  • Nov 2013
                  • 14
                  • UK
                  #5
                  Re: Panasonic Toughbook CF-52 IC Identification

                  Hi, yes, it has RS232, and yes, I believe you're right about it.
                  My problem is, there is few and they all unfortunately
                  start with ADM2

                    Comment

                    • mon2
                      Badcaps Legend
                      • Dec 2019
                      • 14596
                      • Canada
                      #6
                      Re: Panasonic Toughbook CF-52 IC Identification

                      Ok. Check ADM213 - see attached datasheet and confirm the caps to the RIGHT side of this IC. Trace their pads with a meter to confirm they match the attached datasheet. Common part to source.

                      Fairly sure that your blow IC is:

                      ADM211EARZ

                      or

                      ADM213EARZ

                      Both are of the same pinout but behave differently during shutdown of the part. During a shutdown, the 213 device remains active to wakeup the host PC with a mouse movement or external serial device.

                      I would suggest for you to source 1 of each of the following for testing:

                      https://www.digikey.ca/en/products/d...11EARZ/1007300

                      https://www.digikey.ca/en/products/d...213EARZ/820157

                      Was this the only problem with this logic board? If yes, use a hot air tool to remove and replace this part. Or have your local cell phone repair shop to do the same.
                      Attached Files
                      Last edited by mon2; 07-19-2021, 09:25 AM.

                        Comment

                        • adiserwis
                          Member
                          • Nov 2013
                          • 14
                          • UK
                          #7
                          Re: Panasonic Toughbook CF-52 IC Identification

                          It looks like after all it is ADM213.
                          Placement of caps checks out according to datasheet.
                          Thank you very much for your help

                            Comment

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