USB-C question

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Bob_Crachet
    Member
    • Dec 2022
    • 11
    • United States
    #1

    USB-C question

    I have a motherboard that I am trying to repair. I have a know good USB-C charger with a light on it plugged into a USB-C ammeter. When I plug this cable combination into the board the light stays on the charger but the ammeter does not turn on.

    Does that sound like the port is bad? Is there a way I can check the continuity on the port, or will that matter?

    I posted this in the wrong forum. Can someone move this for me?
    Last edited by Bob_Crachet; 06-20-2023, 02:12 PM. Reason: I need to move this to the correct forum
    Tags: None
    • Vesko356
      VIP Moderator
      • Aug 2018
      • 4386
      • Bulgaria 🇧🇬
      #2
      Re: USB-C question

      Originally posted by Bob_Crachet

      I posted this in the wrong forum. Can someone move this for me?
      Done, thread moved from "Schematic requests" section.

      .
      ----------------------------------------------------------------------------------------------------------------------------------------------------------
      All donations to Badcaps are welcome.
      Become a Badcaps supporter
      >>>>> click on this link to donate <<<<<
      Thanks to all supporters.​
      ----------------------------------------------------------------------------------------------------------------------------------------------------------
      Doctrina est fructus dulcis, radicis amarae.
      .

        Comment

        • mon2
          Badcaps Legend
          • Dec 2019
          • 13829
          • Canada
          #3
          Re: USB-C question

          A well behaved USB Type C port will permit the USB Type C meter to display the power on default voltage of 5 volts + the current draw. This current draw may be any value from 0mA or higher.

          If the display on the meter goes dark, there is a hardware fault on the Type C connector.

          Which motherboard / widget are you testing?

          If you are mating with a removable paddle board / cable? If yes, remove it from the main board and test again.

            Comment

            • Bob_Crachet
              Member
              • Dec 2022
              • 11
              • United States
              #4
              Re: USB-C question

              Thank you for the reply mon2.

              Would the ammeter still turn on if I removed it from the motherboard and then plugged it into just the port? I removed the ammeter and just plugged the USB-c charging cable into the port and tried measuring the voltage on the pins. At one point I was getting about 3.3v on one of the pins but now have been unable to repeat that. Would you say that the port is bad? I will remove one that I know works and test that as well. Thanks for your help!

                Comment

                Previous template Next

                Related Topics

                Collapse
                • motormayhem
                  Lenovo T460 Only Charges on One Charger
                  by motormayhem
                  Laptop Question
                  Hello,
                  I'm working on a Lenovo T460 that has been having trouble charging as of late. Its worked well since I've owned it for a few years. When I went to use it the other day it was dead and wouldn't turn on (was sitting on an Anker 65W GaN charger). After some fiddling with the charger I got it to turn on and start charging, but seemed like the charger was not working as it should (took a few plug and unplug cycles to get it to start charging).

                  A day later it was dead again and wouldn't boot/charge no matter what I did. No lights or anything when...
                  05-12-2023, 01:46 PM
                • Document Archive
                  ISL88739AHRZ ISL88739 Laptop Battery Charger Datasheet
                  by Document Archive
                  The ISL88739 & ISL88739AHRZ are a highly versatile combo battery charger
                  configurable for operating as either a Hybrid Power Boost (HPB)
                  charger or a Narrow VDC (NVDC) charger, supporting 2-, 3-, or
                  4-cell batteries. Both configurations allow the battery to work with
                  the adapter together to supply the system load when it exceeds
                  the adapter capability, referred to as system Turbo mode. HPB
                  charger configuration reverse-boosts battery energy to the system
                  bus to help the adapter provide the system power in Turbo mode.
                  NVDC charger configuration...
                  11-05-2024, 03:28 PM
                • Johndill
                  Dell Inspiron 7567 LA-D993P odd charger issue
                  by Johndill
                  Hi, I have a Dell Inspiron 7567 LA-D993P that I've just got running.
                  There was corrosion around PU1503 which shorted PC1518 & blew PL1504. (Reference pictures attached)
                  I've replaced PC1518 & PL1504 & the laptop is now running however I now have another issue.

                  Here are the tested scenarios:

                  1. With the laptop running on battery, I plug in the 150W charger & the charger shuts off (no LED, protection mode) but the laptop remains running on battery.

                  2. With the laptop off, plug in charger (LED says on) & the front charging...
                  11-16-2022, 10:55 PM
                • Document Archive
                  ISL6257HRZ ISL6257HRZ-T Laptop Battery Charger Datasheet
                  by Document Archive
                  ISL6257HRZ ISL6257HRZ-T Laptop Battery Charger Datasheet

                  Highly Integrated Narrow VDC Battery Charger for Notebook Computers

                  The ISL6257HRZ ISL6257HRZ-T is a highly integrated battery charger controller
                  for Li-Ion/Li-Ion polymer batteries. ISL6257 is designed for
                  Narrow VDC applications where the system power source is
                  either the battery pack or the regulated output of the charger.
                  This makes the max voltage to the system equal to the max
                  battery voltage instead of the max adapter voltage. Operating
                  at lower system voltage can improve...
                  11-05-2024, 04:43 PM
                • exerion5000
                  DELL Alienware 17 R3 (LA-C912P) only work with 120w charger in mode low CPU clock
                  by exerion5000
                  Hello, I received this laptop with the following condition: When I turn it on, it shows the ALIENWARE light and the Alien button lights up, then it does not show an image and it restarts constantly, as the customer had already informed me that the battery was dead, I connected an original charger that I had it for testing, the machine turned on normally and I was able to enter Windows without problems, after a while of testing I noticed that it is very slow (like a Cyrix 425...), and after performing a CPU test the frequency is
                  below normal, as if it were operating in an extreme energy...
                  10-15-2023, 02:12 PM
                • Loading...
                • No more items.
                Working...