Lenovo G560 Compal LA-5752 charger stops with overcurrent

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Hexel
    Member
    • Jan 2019
    • 15
    • Ukraine
    #1

    Lenovo G560 Compal LA-5752 charger stops with overcurrent

    Hello!

    Need help in troubleshooting notebook G560. When with battery, charger ISL6521 starts charging, and after few seconds, when CHLIM input (current setpoint from EC) reaches 250mV, charger shuts down with audible click. After ~5ms EC turns off adapter input (ACOFF is asserted) and switch to battery input.
    When with only adapter, or battery, no problem.
    Tried different batteries, adapters. ISL, charger mosfets, bootstrap caps are replaced, no effect. Its nothing else issue, as process interrupts when ADP_I signal peaks and charger PWM pulses disappers. After that, EC puts EN input to ISL low.
    Maybe, any ideas?
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • flat-earther
      ASUS X54H laptop thinks it's always charging even with charger unplugged
      by flat-earther
      The charging indicator light on my ASUS X54H laptop is always on even when the charger is disconnected.

      Windows also shows ''Plugged in'' when charger is not connected.

      This problem started year ago gradually, when unplugging the charger the charging light took several seconds to disappear, then minutes, and now almost always on even when unplugged for an entire day.
      Strangely, before sometimes immediately when plugging in the charger the charging light went away, and later came back with it connected.
      If I let battery run out and say it has 3% Windows will...
      06-24-2025, 09:32 AM
    • 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
    • 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...