ASUS X542UR Touchpad problem

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  • Test asus
    New Member
    • Apr 2024
    • 7
    • Turkey
    #1

    ASUS X542UR Touchpad problem

    Hello,

    My laptop's touchpad is not working. I have tried software, touchpad and touchpad fpc. I think the motherboard is faulty, can you share motherboard schematics or how can I fix the problem?

    Model
    X542UR-GQ272T

    Part No
    90NB0FE2-M03490

    Part Desc
    AS X542U 7500U/1DG5/12G/TU

    Part Specification
    X542UR-1BGQ/8SL/V/WAC/A08

    Have a good day,
    Attached Files
    Last edited by Test asus; 04-25-2024, 03:51 AM.
    Tags: None
    • SMDFlea
      Super Moderator
      • Jan 2018
      • 21841
      • UK
      #2
      Schematic requests go here -> https://www.badcaps.net/forum/troubl...-requests-only
      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

        Comment

        • Test asus
          New Member
          • Apr 2024
          • 7
          • Turkey
          #3
          Originally posted by SMDFlea
          Schematic requests go here -> https://www.badcaps.net/forum/troubl...-requests-only
          I asked both for the schematic and to see if we could find a solution to my problem.

            Comment

            • mon2
              Badcaps Legend
              • Dec 2019
              • 14659
              • Canada
              #4
              Which is the trackpad connector? Is it J3103 in the shared pic?

              Test it by placing the meter in diode mode. No power on the logic board. Connect the trackpad.

              Red meter probe (yes red) to ground.
              Black meter probe to point to test.

              Test each pin on the trackpad connector. Post each diode mode measurement.

                Comment

                • Test asus
                  New Member
                  • Apr 2024
                  • 7
                  • Turkey
                  #5
                  Originally posted by mon2
                  Which is the trackpad connector? Is it J3103 in the shared pic?

                  Test it by placing the meter in diode mode. No power on the logic board. Connect the trackpad.

                  Red meter probe (yes red) to ground.
                  Black meter probe to point to test.

                  Test each pin on the trackpad connector. Post each diode mode measurement.
                  I checked each pin of J3103 and they all work

                    Comment

                    • mon2
                      Badcaps Legend
                      • Dec 2019
                      • 14659
                      • Canada
                      #6
                      Post each diode mode measurement.

                      Click image for larger version Name: tp1.png Views: 271 Size: 125.7 KB ID: 3259717
                      Click image for larger version Name: tp2.png Views: 245 Size: 64.5 KB ID: 3259718
                      Last edited by mon2; 04-25-2024, 07:10 AM.

                        Comment

                        • Test asus
                          New Member
                          • Apr 2024
                          • 7
                          • Turkey
                          #7
                          Originally posted by mon2
                          Post each diode mode measurement.

                          Click image for larger version Name: tp1.png Views: 271 Size: 125.7 KB ID: 3259717
                          Click image for larger version Name: tp2.png Views: 245 Size: 64.5 KB ID: 3259718
                          which ones I will measure, can you write their names?

                            Comment

                            • mon2
                              Badcaps Legend
                              • Dec 2019
                              • 14659
                              • Canada
                              #8
                              Post #4

                                Comment

                                • Test asus
                                  New Member
                                  • Apr 2024
                                  • 7
                                  • Turkey
                                  #9
                                  Originally posted by mon2
                                  Post #4
                                  I checked all the J3103 pins, they're all working.

                                    Comment

                                    • Test asus
                                      New Member
                                      • Apr 2024
                                      • 7
                                      • Turkey
                                      #10
                                      Originally posted by Test asus

                                      which ones I will measure, can you write their names?
                                      and my motherboard touchpad connector name is not J3102, my touchpad connector its J3103.
                                      Attached Files

                                        Comment

                                        • Test asus
                                          New Member
                                          • Apr 2024
                                          • 7
                                          • Turkey
                                          #11
                                          ok my problem is solved, I was connecting to the wrong connector

                                            Comment

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