The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    Z60M Power Plug Question

    Discussion in 'Lenovo' started by Solmyr, Dec 23, 2006.

  1. Solmyr

    Solmyr Newbie

    Reputations:
    8
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    5
    Hi!
    First of all sorry for my english:/ it isn`t perfekt

    I have a z60m and my little child (3 years) has broken the center pin in the coaxial power plug.

    It is market "signal". DC power is using the outside and inside part of the
    barrel, so it still works great.

    What does this signal do? It is nessecery to have it?
    Can i plug this power cord to my laptop without any problems ?

    After a small investigation :D i discovered the signal cable isnt used (there are only 2 cord in power cord) am i right?

    ThX in advanse for answer
     
    Solmyr, Dec 23, 2006
    #1
  2. dietcokefiend

    dietcokefiend DietGreenTeaFiend

    Reputations:
    2,291
    Messages:
    3,023
    Likes Received:
    2
    Trophy Points:
    106
    It is needed for the power plug to work properly with the laptop. I would highly suggest you purchase a new AC adapter (they are 41 bucks from Lenovo).
     
    dietcokefiend, Dec 23, 2006
    #2
  3. Solmyr

    Solmyr Newbie

    Reputations:
    8
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    5
    Hi! Thx for answer, but could you explain exacly what is the function of this center pin, look at the picture attached - its my power cord - center pin isn`t attached to anything...
     

    Attached Files:

    Solmyr, Dec 28, 2006
    #3
  4. dietcokefiend

    dietcokefiend DietGreenTeaFiend

    Reputations:
    2,291
    Messages:
    3,023
    Likes Received:
    2
    Trophy Points:
    106
    If the plug is messed up anyways, chop off the end leaving maybe 2-3" of lead from the plug in case you need to resolder. Chop into both wires coming from the adapter, and see if there is a center conductor inside one of the wires. Another possibility is the center plug has no wire, but instead is connected by resistor from the ground side. I just checked my center plug, and it is definitely connected to something, giving about 9k of resistance from the outside ground area. The power adapters have some way of identifying themselves to the laptop (my T60 knows if its a 90w or 65w connected). I am guessing its that.
     
    dietcokefiend, Dec 28, 2006
    #4