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WTF? HP Power Ribbon

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    #1

    WTF? HP Power Ribbon

    Hi guys,

    I have come across a problem I have no experience with. I am working on a HP G60-439CA that won't power on. I believe I have found the problem, it being a ribbon having been ripped from the power button. I don't know how to go about putting this back together. Can anyone help?

    The ribbon is designated AWM E118077 2896 80C VW-1.

    The power board is designated Warrior Power Button Board ?

    Check pictures for more info.
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    #2
    Re: WTF? HP Power Ribbon

    You buy a new power button board which will come with the ribbon attached. Any other attempts will result in frustration.

    If you really want to do it, align the ribbon really carefully, tape it in place, heat up your soldering iron to at least 350C and go over each trace. Go along the trace, never left/right as you will definitely ruin both ribbon and board that way (been there done that). The plastic should melt leaving the ribbon secured to the board... or at least that's the theory. That one doesn't have a lot of lines so you might just succeed.
    Originally posted by PeteS in CA
    Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
    A working TV? How boring!

    Comment

      #3
      Re: WTF? HP Power Ribbon

      It may be solderable. You didn't post a photo showing the contacts on the ribbon, so it depends on what kind of shape those are in. I've never had good luck soldering those kind of ribbon cables personally. I always seem to melt them.

      That said, it's a fairly small part and I wouldn't imagine a new one would be terribly expensive. The power button board may be its own part, or it may be a component of the entire hinge cover piece. HP part numbers are usually on a sticker. You want to look for the SPS number, which is the part number. Search for that number and it will give you an idea of what a replacement might run.

      Comment

        #4
        Re: WTF? HP Power Ribbon

        Thanks for the reply T.u. and I have one quick question. Since the ribbon was ripped from the power button board there is still glue (?) and pieces of the ribbon on the board itself. What is the best way to remove this?

        I thought I might as well try to fix it.. if it works.. great.. if it doesn't, I'll replace the whole board. =)

        Comment

          #5
          Re: WTF? HP Power Ribbon

          Originally posted by Doming0 View Post
          Since the ribbon was ripped from the power button board there is still glue (?) and pieces of the ribbon on the board itself. What is the best way to remove this?
          Just melt it with the soldering iron, if you do it properly it'll solder itself regardless of what might be on it. As i said, you have a chance of success with this one, done it several times, but i tried the same on a higher density ribbon and failed.
          Originally posted by PeteS in CA
          Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
          A working TV? How boring!

          Comment

            #6
            Re: WTF? HP Power Ribbon

            Originally posted by yyonline View Post
            It may be solderable. You didn't post a photo showing the contacts on the ribbon, so it depends on what kind of shape those are in. I've never had good luck soldering those kind of ribbon cables personally. I always seem to melt them.

            That said, it's a fairly small part and I wouldn't imagine a new one would be terribly expensive. The power button board may be its own part, or it may be a component of the entire hinge cover piece. HP part numbers are usually on a sticker. You want to look for the SPS number, which is the part number. Search for that number and it will give you an idea of what a replacement might run.
            I tried to take a photo of the end of the ribbon but my camera is shite. I can tell you that I would have to probably expose the leads by filing the plastic around them since most of the lead was left attached to the board.

            Comment

              #7
              Re: WTF? HP Power Ribbon

              Originally posted by Doming0 View Post
              I can tell you that I would have to probably expose the leads by filing the plastic around them since most of the lead was left attached to the board.
              If you are still able to see where it goes and align it, just take my word for it and solder it directly. You'll have to clean the tip of your iron afterwards but that's a different deal.
              Originally posted by PeteS in CA
              Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
              A working TV? How boring!

              Comment

                #8
                Re: WTF? HP Power Ribbon

                Here's an example of how to solder one: http://www.youtube.com/watch?v=RQC4c9Lylg4

                Comment

                  #9
                  Re: WTF? HP Power Ribbon

                  That's an awesome example video Badcappy! Thanks for that. Unfortunately I tried before and made a bloody mess. Heh, well live and learn. I'm ordering another board as we speak.

                  Thank you to everyone for all the tips and advice. Next time I will try again and see how it goes.

                  Comment

                    #10
                    Re: WTF? HP Power Ribbon

                    I don't think that your cable could have broke while the computer was assembled. It may have broke when you were taking it apart. I have a feeling that once you get the new cable you will still have power issues with the computer. The G60 are notorious for power issues. If you read around you will find many people having issues with the G60. Most people recommend that you remove the battery and hold the power button for 20 sec. I think that it is a design flaw, in that, the power control chip is located really close to the battery terminals, so that when the battery is slapped into the computer or the computer takes any bump on the battery, the stress is transferred to the board through the terminals flexing the board right at the power chip. This weakens the solder joints at the power chip eventually causing a failure. Either the computer will not power on, charge the battery, or other strange power issues. The solution is to reflow the power chip. No more power issues. BTW the Compaq CQ series and the DV4 series all have the same problem. Hope this helps out

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