820-01958 intermittent power on 20v then plugged again 5V 0.24A on 2 USB-C

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Wachenaggo
    Senior Member
    • Jul 2018
    • 66
    • Philippines
    #1

    820-01958 intermittent power on 20v then plugged again 5V 0.24A on 2 USB-C

    No Water Damage
    Issue
    -5V 0.24A on 2 USB-C sometimes it powers on slow high fan speed and 1% battery.
    -12.3v PPBUS

    no burn or water damage?? something is loosened?
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14115
      • Canada
      #2
      Re: 820-01958 intermittent power on 20v then plugged again 5V 0.24A on 2 USB-C

      Are you using the official and recommended power adapter? If not, post the full specs of the power adapter.

      Remove all power. Rotate the power adapter head by 180 degrees. Insert into the laptop again. Does it work now?

      Remove all power. Meter in DIODE mode.

      Red meter probe, yes RED to ground.
      Black meter probe to the CC1 line of this type C connector.

      What is the voltage measurement?

      Repeat for the CC2 line diode mode check.

      Post each reading. The CCx lines are used to communicate with the power delivery capable adapter. If the tvs esd diodes are blown, the logic board will be unable to switch to use the 20v power delivery contract.

        Comment

        Previous template Next

        Related Topics

        Collapse
        • Shinju
          Razor Blade Steath 13" RZ09-01963 plugged in Not Charging (new battery)
          by Shinju
          Hey All!

          Long time forum member here with a problematic laptop issue!

          I got a RZ09-0196 with a bloated battery (still worked and charged fine) I pulled the old cell pack out and installed a new cell pack in its place.

          The laptop would not power on with the new battery installed without the power supply being plugged in.

          When booting into Win10 (all up to date BTW) I saw the battery icon with 49% plugged in not charging.

          TL;Dr version, old battery worked, charged but was bloated, installed a new non OEM replacement, laptop/windows...
          10-20-2021, 04:58 PM
        • rilley
          MacBook Pro 13inch 2017mid (A1706 820-00923-A) - liquid damage - USBC and Display short circuit
          by rilley
          Hello everyone,
          I am new into this, sorry to post it here. I want to make this as a pet hobby project, as this mac is not urgent.

          I have (Macbook Pro 13inch 2017mid) A1706 820-00923-A

          My mac had liquid damage a long time ago, the connector from J8500 is damaged on pin 46 (PP5V_S0_ALSCAM_F), I guess the LCD/display panel is in short circuit, as I saw the connector from the LCD burned as well.

          And the resistor L4004 is literally burned.

          From what I see from the schematics, it does not affect any other rails, only the connection to the display...
          07-10-2024, 01:57 AM
        • protocold
          MacBook Pro 15" 2010 820-2850 intermittent charging
          by protocold
          I would like to get some help on a 820-2850 logic board with intermittent charging problem. Sometimes the battery will charge all the way and sometimes magsafe would be cycling between green and orange.

          I have already tried replacing dc-in board, swapping good battery, swapping genuine 85w chargers. None of that helps..

          when it is not intermittent:
          PPVBAT_G3H_CHGR_R is 12.07v

          when it is intermittent:
          When the light is green, PPVBAT_G3H_CHGR_R is 12.99v
          when the light is orange, PPVBAT_G3H_CHGR_R is 11.62v

          data line on the battery...
          07-25-2025, 08:18 PM
        • drscoot
          usbc connector replacement on mobile
          by drscoot
          I replaced the broken usbc connector on this Ciontek CS50 mobile device. It worked fine afterwards, although it looks like the battery went down quickly and the device got warm at the back (battery section). After putting it in standby for a while it didn't came back anymore?
          The battery is still charging (red led), but no power on.
          I had another look at the usbc connector, it looks like one of the components is melted down (blue marking)? I have a picture of an untouched device and then the repaired device with 2 pictures; what are these components with B1 and PB marking? Are these...
          3 Photos
          07-13-2025, 02:37 PM
        • wrobbie
          Lenovo T14 (AMD, gen1) over-voltage protection IC keeps dying.
          by wrobbie
          My T14's (NM-C801) main USBC input keeps failing every few months. Initially, it worked fine for several years. The symptom is that once powered from the main USBC port using a 65W power brick, after some time (minutes, hours) charging will fail completely. Powering from the secondary (docking) USBC input still works. This laptop is basically always plugged in. The first time it happened, it took me a long time to find that the FPF2281 over-voltage IC for that USBC input was at fault. When the issue occurs, it will continuously reset power delivery negotiations with the power brick -- according...
          02-26-2025, 10:02 PM
        • Loading...
        • No more items.
        Working...