iBook G4 - Power Cable Connector Problem.

Discussion in 'PowerPC Macs' started by awesomesauce, Jan 4, 2008.

  1. awesomesauce macrumors newbie

    Jan 4, 2008
    This is quite an interesting situation I'm in.
    Today during High School, my first period, I noticed a Mac iBook G4 in the recycle pile used by my schools Tech department. I decided to swoop it up and give it a whirl, and see for myself what the problem with it was.
    When I first powered it on, I was receiving a scrambled signal on my display. It was merely a white screen with lines in it, after a while of tinkering, even grabbing a few mac knowledgeable buddies of mine to see if they could do anything. It seemed like this would drag on, and I would not fix it.
    In the end, we ended up tapping the screen and seeing a faint hope of light, that light was the appearance of the desktop! Unfortunately, the screen soon vanished back into it's scrambled state. Upon further tapping, we could only figure it was a problem with the connection of the display to the logic board.

    I decided to open up my iBook, following this guide:

    Everything was going great until this step:
    In which it states in the directions:
    "[WARNING] The connectors at the ends of the cables are attached very firmly to the sockets on the logic board. Pulling directly on the cable will either separate the cable from its connector or the socket from the logic board.
    * Lift the upper case enough to disconnect the blue and white power cable from the logic board. Using your fingernails or a dental pick, carefully pry the connector from its socket. Make sure you're pulling only on the connector and not on the socket."

    I used a small screwdriver to pry up the connection cable, in the end I ripped the connector off of the logic board..

    Here's a few pictures to possibly help:

    This one is of my iBook, and the circled area is where the connector was pulled off.
    This is a close up of that area.
    And here is a close up of the cable that also has a connector attached to it.

    If it helps, the cable that was connecting these two peripherals was Blue and White, connected to the keyboard, and is directly wired to the power button. ):
    So the real question now is: Can this be soldered back on? Is there any hope for this device? Possibly another way to turn it on? D:

    Thanks in advance.

    Oh yeah, and the specs on this mac from what I know of is that it's a:
    iBook G4 - 12" - 1.33GHz - Mac OS X
    I'm sorry, but that's all I know. ):
  2. OrangeSVTguy macrumors 601


    Sep 16, 2007
    Northeastern Ohio
    did you try connecting it to an external monitor? i don't know if it can be fixed or not but just throw it up on ebay for $250, hell you might get a little bit more since that's a faster processor.
  3. awesomesauce thread starter macrumors newbie

    Jan 4, 2008
    I should've thought of that before toying around with it. Oh well.
    I would really like to keep it if I could, but if it comes down to that, I might as well scrap it or just sell it like you mentioned.
    Thanks for the advice.
  4. zioxide macrumors 603


    Dec 11, 2006
    That stupid little connector broke off mine when I was changing the hard drive. I soldered it back on and it's been fine ever since.

    Just make sure you don't bridge the connection with solder or you'll be screwed.

    Also, if you want to run other tests to see if you can figure out the display issue before you go about doing the soldering, you could just hook up the ibook with the case off and use a screwdriver to just jump that connection on the logic board to start it up.
  5. awesomesauce thread starter macrumors newbie

    Jan 4, 2008
    That is the most bodacious idea ever! I'll give it a shot right now! Crap. Gnarly tips dude, you're a real life saver. :) <3
  6. awesomesauce thread starter macrumors newbie

    Jan 4, 2008
    Well, after searching elsewhere I found this picture:
    Showing the exact location for me to press a needle nosed plier to start it up.
    Well, now I'm stuck with a broken screen, but I did find a temporary fix! Leave it on, let it sleep. Win. :)
    Thanks for the help guys.
  7. bigneilt macrumors newbie

    Jan 15, 2009
    I am attempting to solder the connector plug

    I have an ibook G4 12" and was trying to replace the bezel and clutch and pretty much had to disassemble the entire computer. When I got to the point of taking the top shield off, the power connector plug didn't want to give, the blue and white wires pulled free from the connector -- so then I tried to pry the plug from the connector and the whole thing came loose from the logic board and I knew I was in for some good times. After researching more on the web I learned this was the POWER connector and learned that I was in for further good times.

    So now I am attempting to solder the power connector plug to the logic board. I am unsure though as to what gets soldered to what. There are 2 small wires on the bottom of the plug connector: [​IMG]

    and the area on the logic board where I believe it gets solder to I circled in red and believe to be the 2 larger pins at the top:


    Am I correct in my assumptions?
  8. OrangeSVTguy macrumors 601


    Sep 16, 2007
    Northeastern Ohio
    To make sure, do what was said earlier, use a flat head screw driver to "bridge" those connections and see if those 2 will start it up. I don't remember 100% off the bat but I do think that the power connector is for the 2 lower "parallel" solder lines that are directly below it. Try and see which are the 2 right ones. If you do solder it back on, it doesn't matter which way it goes as long as you solder both of the leads back on without crossing them :)
  9. bigneilt macrumors newbie

    Jan 15, 2009
    i was able to bridge those 2 smaller connections on the logic board together with a small screwdriver and start it - several times. I don't know if I ever got it to start by pressing the power plug connector to it and pressing the power button.

    I made the mistake of trying to just super glue in place, but when I went to press start nothing happened and then I had to break the whole thing apart which caused a mess and of course the area doesn't look as clean or clear as it did in the original pics.

    now i am left with a shallow double line
  10. bigneilt macrumors newbie

    Jan 15, 2009
    so now the plug connector is worn out and the board looks like this:


    pretty unrecognizable. I tried heating the pads on the board and the pins on the plug connector and then pressing it together. I tried adding some solder (.022) but it just didnt want to stay on one side or the other. now this resembles a moonscape.

    I was just able to start it again with a screwdriver.

    I have no idea what to try next.
  11. bigneilt macrumors newbie

    Jan 15, 2009
    so i can still start with a screwdriver, but the bottom 2 pads on the logic board that I need to solder to are pretty unrecognizable and hard to see. Only one is still chrome or silver in color.

    anyone know how to save me.
  12. zioxide macrumors 603


    Dec 11, 2006
  13. OrangeSVTguy macrumors 601


    Sep 16, 2007
    Northeastern Ohio
    You used super glue instead of solder? :confused::confused:

    Try using an xacto knife or razor to scrape off the glue residue.

    Needle nose plyers and a good wattage heatgun should fix that no problem
  14. bigneilt macrumors newbie

    Jan 15, 2009
    Okay, so I've been fooling with this for the last 2 days. I am not an expert to soldering, not even close. I did the superglue thing which got me off to a really bad start, because
    then I had to scrape it clean.

    So I tried soldering again today. I managed twice to get the wires soldered to what I thought was on those 2 nubs. So then I wired the wires to the power button on
    the top shell. Both attempts and the computer would not start using the button. I desoldered after my 2nd attempt and there is just nothing left to work with. I've scraped
    the logic board clean in that area 2 see the 2 lines and tried jumping the board to start it with the screwdriver. Now all I can do is to get it the fan to spin for a second.

    How do I know if the logic board is shorted out? When I plug the adapter in the side, the light on it still turns green, I don't know if this is an indicator or not.

    I wish I could go back to before I put the glue down and start with a clean logic board, but I am left with this:

  15. bigneilt macrumors newbie

    Jan 15, 2009
    I've given up trying to solder for now, but I have one question: If the battery still charges, does that mean that the logic board has not shorted out?
  16. nthorn77 macrumors newbie

    Apr 13, 2009
    Jumpstarting iBook

    Could someone more specifically explain how to jumpstart an iBook where the power connector socket has broken off the logic board?

    Also, if the socket that goes onto the logic board is damaged, do you know if one can be ordered anywhere?

    Thank you.

  17. bigneilt macrumors newbie

    Jan 15, 2009
    the 2 small rectangular pins that are close together on the board, just bridge them with a screw driver and hit the power button. it will start right up.
  18. F4ntasyman macrumors newbie

    Apr 20, 2009
    The same thing happened to me when I was installing a new hd today. After 10 minutes of cursing and crying I realised that I could never solder the thing back in its place, even with wires, so I did this:


    As you can see, I had to remove one internal speaker, but hey...they're crappy anyways :cool:. Now I just have to carry a screwdriver with me, but to be honest I don't really need one because I rarely need to restart my iBook. Sleeping works like normal: just close the lid.
  19. e-dard macrumors newbie

    Jun 15, 2009
    Now this is a real no-messing-around-kinda-guy's solution!!!! ha!!! It's brilliant!
  20. epheterson macrumors member


    Jul 24, 2002
    San Francisco
    Sigh of relief

    I was changing the hard drive in my roommate's computer, and this happened.

    I initially tried to solder the connector right to the board, but after many attempts, that seemed to not be the right way to go.

    I found F4ntasyman's video on YouTube and considered it, really considered it. (F4ntasyman, you'll find a YouTube message from me.) I then decided this isn't my laptop, it's my roommate's, and ruled it out.

    Then I started searching for prices of new logic boards on eBay. :(

    Finally, I found this forum. I have to thank zioxide for giving me the balls to try soldering again.

    Here's what I did:

    I took a USB cord, cut it and separated all the wires out.

    I took two of them, the black and the white, cut an end off to expose the wires and went at it.

    The trick I learned during this endeavor was to put solder on the wire before putting the wire to the board. This is opposed to holding the spindle of solder to the board and letting it drip on. By putting the solder on the wire, you decrease the possibility of using too much, and shorting the two tiny leads on the logic board.

    So I went in, soldered the two wires to the board then scratched my head.

    I then decided to cut another piece of wire and solder it to the connecting jack which came off of the mother board. I used the same solder-on-wire method and it worked just dandy. To be sure nothing touches, I melted some plastic onto the connections. Silicon is preferred, but I locked myself in my room and didn't want to leave until it worked, and I had no silicon, just a plastic ice-cube tray.

    Okay, so now I was doing good! When I touch the cords together, the computer turns on consistently. I tested if the proper connector-in-jack method worked, and it did.

    Because I used two sets of wires, I then soldered them together, wrapped tape around, and thanked my lucky stars. By the end I cut the wires pretty short so that I could stuff them under the Top Shield, which is important, because otherwise it all won't fit.

    Ladies and gentleman, the common man can fix this problem.

    Best of luck to anybody who finds themselves in my situation.
  21. bilboshaggins macrumors newbie

    Oct 4, 2009

    Thank the lord allah jesus christ for the creation of this thread. If MacGuyver was a meme, you guys would be it.

    Not only is this thread hilarious (plastic ice cube tray? seriously dude? that's awesome!), it totally fixed my problem (ibook won't turn on... because that damn part fell off).

    I was going to pull out my refrigerator and fashion up a soldering iron out of the wiring, mixing solder out of eyebrows and sweat and heating it with a curling iron, but after reading this thread I decided merely to screwjump it and reassemble. I felt like I was bringing life into the world, seeing as how I probably won't turn it off until it's ready to retire. Then I felt like I killed a retard child when the screen went black halfway through putting the case back on and I had to screwjump again. I've got a good feeling about this one, though.

    Again, thanks everybody. For someone who's never even put ram inside of a pc, to be able to jump my 6-year old mac was a godsend. Awesome!!!!:D
  22. sunnah macrumors newbie

    Oct 29, 2009

    My mouth was openthe entire time I was reading this thread. I cannot believe I was reading about the exact problem I am in. After a kernal panic an investigating I changes my airport module, upgraded HD, and combo drive. BTW, I have the iBook G4 (mid 2005). Now I am contemplating what to do. I hate the idea of sodering but it comes down to 20 bucks versus 1200 buck for a new laptop. I will definitely keep everyone updated on my progress. Thanks a lot for the documentation.
  23. sunnah macrumors newbie

    Oct 29, 2009
    Not looking so good. Now I have two problems. The connection and I am still getting the kernal panic. I am trying to start from CD to install in the new HD. What to do?
  24. smithco macrumors newbie

    Jun 28, 2008
    Is it fried?

    Just attemped a hard drive replacement, and now I'm finding myself in the same situation. I used glue to fix it first... and it worked great... for a week. Then my iBook stopped turning on. I tried soldering it, but couldn't get it to turn on. I'm worried I might have fried the board. This picture you posted is a little confusing to me. I want to try to jump mine with a screwdriver/needlenose, but I don't want to fry the thing in case it already isn't. Question: are the two locations attached by the blue line the areas you connect? Why is there both a blue line and a red line?

    Also, when the power adapter is plugged in, the green light on the side does light up. Is this a good sign that my board is not ruined? Or does it have nothing to do with it at all?

    I really wish I would have seen this post before attempting.


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