Dead ibook after replaced power supply

i'm trying to fix my mom's ibook for her. it hasn't powered up in a few years. apparently, she took it to a guy of questionable skills and he replaced the power supply. it then worked for a few weeks and died again. my question is this: could he have installed another bad power supply, or could something else in the computer be killing the power supplies? is there anything else i could try, like resetting it, to make it start up?
more details: the ibook has a brand new battery in it, and resetting the PMU has no effect on the machine.
Message was edited by: saridout

I don't know what you mean when you say that he installed a power supply?
The power supply of an iBook is an external power adapter which plugs into the adapter port on the side of the iBook.
So, what do you mean "he replaced the power supply"? Do you mean he replaced the power adapter? Or did he replace something inside the computer? If so, could you tell us exactly what he replaced?
What is the MHz rating on the iBook? Which type of optical drive does it have? Which version of the OS is installed on it? How much RAM is installed? Do you know the hard drive capacity and how much space remains available on it?

Similar Messages

  • G4 1.42 dualie still won't start after replacing power supply.

    This Machine was turning off randomly for about a week when it just stopped working. The power light would go on when pressed, but nothing happens.
    Tried plugging into a wall socket instead of power strip. Nothing. Reset PMU. Nothing. Battery is good.
    Read though many reports and determined the culprit was the Power Supply. The power supply was replaced with original Apple part. The problem remains. Press the power button and the light goes on, release it and the light goes off. Nothing spins up, no chimes, nothing.
    Now I'm reading it may be the power button - someone solved the problem by attaching an older keyboard with a start button. I don't have one to test.
    I don't want to keep shooting in the dark on this one.
    Thanks for any help.

    Hi wagsfx, and a warm welcome to the forums!
    Good research so far!
    Now I'm reading it may be the power button - someone solved the problem by attaching an older keyboard with a start button. I don't have one to test.
    Too bad you're not closer, I have 5 I don't need, because buying 8 was cheaper than buying on on eBay!
    Anyway, my suspicion is that if that KB thing works it is the Power Button assembly, but that other things will start going wrong shortly there after.
    It's likely not any consolation, but I think the MDDs are the worst G4 ever turned out, I wish I could have my $20+K back from buying, repairing, & upgrading them, since all 3 are now dead as a doornail.
    Hang on though, there's many far greater experts here than I, & I hope they can drop in with some better ideas for you!

  • 2008 iMac 8,1 still won't power up after replacing power supply

    A few days ago my iMac powered-ON as usual at 8AM and was working normally, I checked email and left for a meeting. When I returned 30 minutes later my office had a slight odor of hot bakelite and the screen was dark, instead of displaying the screen saver. Thinking the power may have blinked, I pushed the start button on the back and nothing happened, tried several more times, then depressing and holding, still nothing - absolutely lifeless.
    Presumed it was probably the power supply, so took it into the Genius Bar and my suspicion was confirmed; they checked the LEDs and advised that the power supply was mostly bad. Despite the hassle, the solution seemed simple enough: replace the power supply and I'd be back in business. That proved to be wrong!
    Bought a new (NIB) power supply from a reputable dealer and carefully disassembled/reassembled the iMac feeling ever so confident that I'd hear the chime and fan whir when I depressed the ON/OFF Button. To my total disbelief nothing has changed! Its still dark and lifeless as before. Not discounting a theoretical chance that both power supplies could be bad I'm puzzled what to do next and where to look. Obviously, there isn't much in line ahead of the power supply, but given the fact there is no fan noise and no glimmer on the display, I can't fathom it could be anything other than something between the power cord and the power supply.
    What could have caused the hot bakelite smell? The original power supply had NO bakelite odor and no burned chips, traces, scorched transformer windings or cooked capacitors. That had surprised me, so sniffed around the motherboard/backplane and detected a slight bakelite odor at or near the hard drive; I haven't cracked the case yet to examine the HDD - but, even if it were dead, I'd still hear the chime and fan, and maybe see at least a slight glow on the display, right?
    And so, I'm calling on all you "pros from Dover" for some insights, wisdom and pointers to help me diagnose the problem and get the thing fixed. Your thoughts?
    Thanks, much, compadres. AK

    My assumption is the same as KT’s, the logic board fried. If the logic board is functional, even if the hard drive is dead, it should power on and perform the POST. Since it isn’t my advice is the same as KT’s - hope you don’t need Snow Leopard to run some older program(s).

  • Mac G5 dual won't start, even after replacing power supply

    I was having an issue with the mac starting, getting the bong and then it would run for a while and then shut down. I tried resetting pram and then replaced the power supply.  It still does the same thing.  Help.

    OK, good news/bad news...
    We found the problem, but Disk Utility & fsck cannot repair it, it's either erase everything on the drive, or try DiskWarrior...
    Your best bet is DiskWarrior, you need the CD/DVD though.
    http://www.alsoft.com/DiskWarrior/
    BTW, you might enjoy these DiskWarrior review/recommendations...
    http://discussions.apple.com/thread.jspa?messageID=9645801&#9645801
    http://discussions.apple.com/thread.jspa?messageID=10541019#10541019
    http://discussions.apple.com/thread.jspa?messageID=11918925&#11918925
    http://discussions.apple.com/thread.jspa?messageID=12684129#12684129
    http://discussions.apple.com/thread.jspa?messageID=12744794&#12744794
    http://discussions.apple.com/thread.jspa?messageID=12912879#12912879

  • G4 just replaced power supply , it powers up , but the screen is not on and the mouse and keyboard aren't on either. A few times the computer came on with screen working but then it froze up, can't do any type of reset cause of keyboard not working. Help!

    G4 just replaced power supply , it powers up , but the screen is not on and the mouse and keyboard aren't on either. A few times the computer came on with screen working but then it froze up, can't do any type of reset cause of keyboard not working. Help! Pressed pmu button already,  nothing ,..  Ppc g4 Mac

    Should I check the memory cards themselves? Reseat them?
    Yes.
    Memtest X or Rember to test the RAM.
    Reseat is also good.
    The iPhone 4 doesn't like USB 1.1 much.
    after the update the computer was working well, except for this freeze when ever I connect iPhone.
    I'd try USB 2.0 PCI. That's how I connect my iPhone 4s, and have connected all iPhones and iPods, to my G4.
    Never an issue.
    Can't say the same for USB 1.1.......
    The above (previous post) linked PCI card is cheap enough.
    Want cheaper, try this:
    http://www.amazon.com/Protronix®-5-Port-Controller-Card-Chipset/dp/B005JE2U82/re f=sr_1_2?ie=UTF8&qid=1337472141&sr=8-2
    The NEC chipset is the desired chipset, regardless of what OS the maker says is compatible.
    OS X has native NEC chipset USB support.

  • Replacement Power Supply Works But Smells

    Having replaced the Power Supply, and have it working again, I have noticed a sort of smell, an odour of very hot electronic components. I smelt it this morning when I opened the door where the G4 lives. Booting up it doesn't stop. On a scale of one to ten, I would give it about three. There is no smoke, yet.
    Is there a software program which can show the internal temperature of the CPU's?

    Yeah The smell is not diminishing. I had shut the door after a 4 hour session with the window open, I shut the door and the window and went out. When I opened the door the odour was there, a bit stronger because the door and the window were shut. Maybe the fans inside Power Supply or the G4 are not working properly, I don't know. The G4 is fully functional despite the smell, burning/melting, capacitors or something inside there. Anyone else had anything like this after a Power Supply replacement? Not funny.

  • Replaced power supply same problem

    took my imac g5 to apple store where genius told me it needed a new power supply because machine would not turn on and when it did just to gray apple screen Even though the serial number was in the range for extended repair program, i was told mine was to old and did not fall under any repair program. I replaced power supply same issue of gray/white apple screen and fan kicks on loud. reset pram, reset smu, checked diagnostic led lights 1,2,3 all light as they should. Cannot start up with discs either. Anyone with any ideas it would be much appreciated.

    What a bummer! If you can get hold of the reseller, go after him for legal discs, if you can't get him, call Apple at 800-767-2775 and they will send you an appropriate set for a nominal fee.

  • Where can I buy a replacement power supply?

    Where can I buy a replacement power supply for my time capsule?

    Apple do not sell parts for the TC..
    And do not allow their OEM to sell parts.
    So you need to bypass Apple and create your own.
    Or fix the existing one.
    https://sites.google.com/site/lapastenague/a-deconstruction-of-routers-and-modem s/apple-time-capsule-repair

  • Where can I buy a replacement power supply for Optiplex 9020 Mini Tower?

    Where can I buy a replacement power supply for Optiplex 9020 Mini Tower?
    I don't see anywhere on Dell's website to purchase this.

    So far there is no replacement/upgrade PSU for Dell Optiplex 9020 MT from Dell.
    Will a dedicated power supply work for playing games? i bought this system as used (excellent condition) just for Gaming Purpose (GTA V), now i am stuck with the PSU issue. I can alter the case to fit the big size GPUs, but the issue is of PSU.
    Will ePower EP-450CD can help me in any way. 
    My main reason for changing PSU is to play my favorite game.
    Link to ePower ()
    or

  • Replacement Power Supply

    Does anyone know where I can get a replacement power supply for my Inspire 4.1(4400) speaker system? It is a 2VAC 2.9A power supply.

    I have the same speaker system but im afraid that i have fried the subwoofer. so i dont need the power supply any longer. I would be happy to let you have it for cheeper than you could get it at a electronics store. if you are interested then you can email me @ [email protected]
    and we can discuss it.
    cool?
    Jimbo

  • Replacement power supply for Airport N base station?

    I'm in need of a replacement power supply for an Airport Extreme N base station.
    Is this something I can pick up at a friendly neighborhood Radio Shack, or do I need to order the OEM part from Apple?
    I don't need the automatic international voltage switching, just something that can power this puppy with US AC. Thanks.

    Tom welcome to the discussions.
    I would probably call the Apple number.
    1-800-MY APPLE
    I am sure that they can point you in the right direction.
    I am a little shocked that one of the Apple Retail stores can't offer you a Power Supply.
    If all else fails, it sounds like you have tried an alternitve, if it works use it, until you can get a replacment.
    Don

  • TS1538 iphone5 went in recovery mode after replacing power button, everything went well in the repair  ,try to restore but it quit in the middle of the process

    iphone5 went in recovery mode after replacing power button, everything went well in the repair  ,I try to restore but it quits in the middle of the process and go back to i tunes logo please help I been without my phone for a week.

    Hi
    did you get any reply?
    I have the same problem I dont know what to do..
    Regards

  • Replacement power supply #614-0296 for iMac G5 20".

    Looking for a replacement power supply for an iMac G5 20", original part #614-0296. Model M9824LL/A.

    Try welovemacs.com or Jim Warholic

  • Replacing Power Supply 200w ATX-1956D with 1956F

    HP Pavillion 873n, replacing power supply have extra adapter. Looks like newer replacement has been slightly modified. Where do I plug this 3 pin femare adapter ?or do I leave it unplugged?
    This question was solved.
    View Solution.

    chariot5 wrote:
    HP Pavillion 873n, replacing power supply have extra adapter. Looks like newer replacement has been slightly modified. Where do I plug this 3 pin femare adapter ?or do I leave it unplugged?
    I would venture to say that your 3pin female adapter should be plugged into a 3pin male adapter on your motherboard.  This allows your system to control fan speed on the power supply.  I hope this helps you.

  • Need step by step directions to install a replacement Power Supply for a HP Color LaserJet 1215

    I have a HP Color LaserJet 1215 printer that is only a couple of years old.  Had a power problem at home that burnt out the power supplies of two HP Towers, a DSL Modem, and (I think) the power supply of my printer.  I have located a replacement power supply but would sure appreciate any one that would know how to replace.  I need a step by step guide aas to how to perform such a task.
    It would also help to have a diagram of the printer showing precisely how to get to the power supply.
    Thanks in advance for any and all help.  I have spent days looking for this information and can't seem to find any.

    How do I start using the reciept scanner

Maybe you are looking for