Lenovo ThinkPad T14 gen1 charging problem

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • tmks2
    Member
    • Oct 2020
    • 12
    • EU

    #1

    Lenovo ThinkPad T14 gen1 charging problem

    I have a think pad t14 gen1, mainboardboard NM-C931 REV 1.0, I replaced the damaged USB-C charging socket, I still have a problem with charging only 5V. Where to look for the fault? Which electronic component is responsible for charging negotiation?

    here is schematics an boardview
    https://www.badcaps.net/forum/troubl...98#post1768898
  • mon2
    Badcaps Legend
    • Dec 2019
    • 14203
    • Canada

    #2
    USB type C is with power delivery. Power delivery will use the cc1 and cc2 pins for communication. The pd controller is the think engine 3 chip on this Lenovo.

    Comment

    • tmks2
      Member
      • Oct 2020
      • 12
      • EU

      #3
      Power delivery TPS65988, this chip may be damaged? is it a programmable chip?

      Comment

      • mon2
        Badcaps Legend
        • Dec 2019
        • 14203
        • Canada

        #4
        It is but is configured by an external I2C host or SPI external flash at run / boot time.

        Comment

        • tmks2
          Member
          • Oct 2020
          • 12
          • EU

          #5
          I replaced the Power delivery TPS65988, charging still 5V, where to look for the problem?

          Comment

          Related Topics

          Collapse

          • Document Archive
            Lenovo ThinkPad X1 Carbon + ThinkPad USB 3.0 Pro Dock Notebook X Specification for Upgrade or Repair
            by Document Archive
            This specification for the Lenovo ThinkPad X1 Carbon + ThinkPad USB 3.0 Pro Dock Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the X1 Carbon + ThinkPad USB 3.0 Pro Dock boardview and X1 Carbon + ThinkPad USB 3.0 Pro Dock schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...
            09-06-2024, 11:40 AM
          • Document Archive
            Lenovo ThinkPad X1 Carbon + ThinkPad USB 3.0 Pro Dock Notebook X Specification for Upgrade or Repair
            by Document Archive
            This specification for the Lenovo ThinkPad X1 Carbon + ThinkPad USB 3.0 Pro Dock Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the X1 Carbon + ThinkPad USB 3.0 Pro Dock boardview and X1 Carbon + ThinkPad USB 3.0 Pro Dock schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...
            09-06-2024, 11:40 AM
          • Document Archive
            Lenovo ThinkPad X1 Carbon + ThinkPad USB 3.0 Pro Dock Notebook X Specification for Upgrade or Repair
            by Document Archive
            This specification for the Lenovo ThinkPad X1 Carbon + ThinkPad USB 3.0 Pro Dock Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the X1 Carbon + ThinkPad USB 3.0 Pro Dock boardview and X1 Carbon + ThinkPad USB 3.0 Pro Dock schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...
            09-06-2024, 11:40 AM
          • Document Archive
            Lenovo ThinkPad X1 Carbon + ThinkPad USB 3.0 Pro Dock Notebook X Specification for Upgrade or Repair
            by Document Archive
            This specification for the Lenovo ThinkPad X1 Carbon + ThinkPad USB 3.0 Pro Dock Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the X1 Carbon + ThinkPad USB 3.0 Pro Dock boardview and X1 Carbon + ThinkPad USB 3.0 Pro Dock schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...
            09-06-2024, 11:40 AM
          • Document Archive
            Lenovo ThinkPad X1 Carbon + ThinkPad USB 3.0 Pro Dock Notebook X Specification for Upgrade or Repair
            by Document Archive
            This specification for the Lenovo ThinkPad X1 Carbon + ThinkPad USB 3.0 Pro Dock Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the X1 Carbon + ThinkPad USB 3.0 Pro Dock boardview and X1 Carbon + ThinkPad USB 3.0 Pro Dock schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...
            09-06-2024, 11:40 AM
          • Loading...
          • No more items.
          Working...