AHL50/abl52 LAC710p - ac120ns no power with battery connected

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  • mzk10k
    New Member
    • Apr 2024
    • 1
    • Spain
    #1

    AHL50/abl52 LAC710p - ac120ns no power with battery connected

    Hello

    I have model AHL50/abl52 LAC710p - ac120ns. It doesn't turn on after connecting the battery. The battery is charging correctly. I remove the battery, restart the bios by pressing the start button for 30 seconds without a charger and it works. I connect the battery, press the start button and it does nothing.
    When it is on and I connect the battery, I reset it and it works and detects the battery.
    I have measured some voltages according to the schematic and they are correct.​
    Can the BIOS be corrupted?
    Tags: None
    • mcplslg123
      Badcaps Legend
      • Jun 2015
      • 7262
      • india
      #2
      Very unlikely bios issue. You need to focus on charging IC,dc-in and discharge area.
      measure voltage on Gate-Source-Drain of dc-in mosfets
      All pins of charging IC with 01. only adapter connected 02. With battery+charger connected.

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