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HP ZSO50 LA-A992P REV1.0 - No power, White led fix

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    HP ZSO50 LA-A992P REV1.0 - No power, White led fix

    Hi,
    I have a ZSO50 LA-A992P with no power.
    When i connect the DC PS with battery connected, orange led appears. After 3-4 seconds, becomes white (fixed, no blinking).
    Without battery, only white led fixed appears.
    Trying to turn on from the button, nothing appears. I've tried to short pins 1 and 2 on the JPWR1 but nothing appears.
    19 V is ok from the connector.
    On the PU301, +5VLP is 5V and +3VLP is 3.3V
    Nothing on +3VALWP and +5VALWP.
    I think EC_ON is missing.
    I've tried with the client's PS and an another mine (that i'm sure is ok because i'm using with my work's laptop. Same power, same voltage) but nothing.
    The DC jack is a little bit ruined on the center. I supposed that could be a problem for the ADP_SIGNAL but on the connector i measure 19V as the VIN and the ADP_ID (after PR1) is 4.37 V.
    How could i check if the ADP_ID could be the problem?
    The client told me some times ago, first to dead, the laptop started to charge the battery only when it was OFF and cannot charge completely the battery.
    May i do other checks?

    Thank you!!
    Last edited by Federause; 01-24-2021, 07:00 AM.

    #2
    Re: HP ZSO50 LA-A992P REV1.0 - No power, White led fix

    Replace the dc jack and hopefully everything will be fine.

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      #3
      Re: HP ZSO50 LA-A992P REV1.0 - No power, White led fix

      Thanks for your reply. I've replaced the connector and everything has been ok! Laptop running!

      Comment

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