laptop power circuits

Discussion in 'HP' started by jmor, Sep 19, 2008.

  1. jmor

    jmor Guest

    Want circuit diagrams for HP Pavilion ZE5730us motherboard power
    circuitry. Trying to determine why power will come on for 5 seconds,
    then turn off. It does produce 5volts from the supply, either with or
    without the 16volt battery, so I suspect power control circuitry.
    Since power on switch is a momentary contact push button, I'm focusing
    on the latching circuits in the power control chain and wish to
    identify those components. Any HP schematics in this are might be
    helpful.
     
    jmor, Sep 19, 2008
    #1
    1. Advertising

  2. jmor

    Ben Myers Guest

    Good luck. Service manuals are not widely available for HPaq laptops, let alone
    schematics, which are off in a Pacific Rim country somewhere, not even on HP
    premises. Your best bet is to try to find a service manual. They can be found,
    although HP generally restricts access to service information on its web site.

    .... Ben Myers

    On Fri, 19 Sep 2008 07:42:55 -0700 (PDT), jmor <> wrote:

    >Want circuit diagrams for HP Pavilion ZE5730us motherboard power
    >circuitry. Trying to determine why power will come on for 5 seconds,
    >then turn off. It does produce 5volts from the supply, either with or
    >without the 16volt battery, so I suspect power control circuitry.
    >Since power on switch is a momentary contact push button, I'm focusing
    >on the latching circuits in the power control chain and wish to
    >identify those components. Any HP schematics in this are might be
    >helpful.
     
    Ben Myers, Sep 19, 2008
    #2
    1. Advertising

Want to reply to this thread or ask your own question?

It takes just 2 minutes to sign up (and it's free!). Just click the sign up button to choose a username and then you can ask your own questions on the forum.
Similar Threads
  1. Jeffrey Chee
    Replies:
    6
    Views:
    315
    Ben Bradley
    Sep 18, 2003
  2. Morten
    Replies:
    2
    Views:
    321
    Noel Henson
    Mar 7, 2004
  3. Susan Perkova

    interfacing 3.3v and 5v logic circuits

    Susan Perkova, Jul 12, 2005, in forum: Embedded
    Replies:
    6
    Views:
    1,463
    shashankm8
    Dec 25, 2010
  4. Jake D
    Replies:
    4
    Views:
    775
    Pete D
    Feb 26, 2009
  5. Roberto Waltman

    Very Slow Circuits (Was: Fast Circuits)

    Roberto Waltman, Jul 15, 2011, in forum: Embedded
    Replies:
    2
    Views:
    346
    1 Lucky Texan
    Jul 15, 2011
Loading...

Share This Page