I have been using it for about a year without a battery (battery died) and as of today it won't power on when I press the power button.

The power adapter plug glows green and has glowed green even with the computer plugged in and operating with no battery, in case that helps.

The computer should operate fine without a battery, right?

Does the green power plug mean the power supply is working properly?

⟐ Commented February 29, 2012 at 7:19 pm -0700

⟐ Answer deleted April 8, 2012 at 4:32 am -0700

My PowerBook doesn't charge. The light on the end of the Charger doesn't come on when I plug it into the computer. I have tried my old battery, which had a power on it, and the computer booted up fine. I tried a new charger but this didn't function. So I think it must be something inside. Perhaps the DC Board? What do you think?

Thanks

David

PowerBook G4 12" 1.5GHz

⟐ Answer accepted May 25, 2010 at 2:24 am -0700

my beloved PowerBook Titanium does not want to power up. Battery is ok as well as power supply. Any idea?

⟐ Answered February 26, 2012 at 7:52 am -0700

have just opened up my g5 1058

The short version of the story is that i've bought this as a dabble into the world of mac's. The story was won't power on...so I opened it up and found 6 definitely bulging caps. I've read this is common to these models and would like to have a go at replacing them, I've also read that you guys think this is a difficult repair job! So.. ? Have you any masterful hints and tips to remove them as the common thread is that it's difficult with these layered boards. Any help greatly appreciated.

also read a few articles about this on badcaps.net and one linked from previous questions which suggest "rippling"..now I'm not an engineer, I'm an ordinary citizen and I was lost after the first hyperbolic graph and accompanying abbreviations. My general understanding was that all? the caps will need replacing, and so will the PSU as this is the source of the "rippling". Am I on the right track here or am I confused?

⟐ Answered September 27, 2012 at 2:45 pm -0700

The symptoms seem to indicate a bad Magsafe i/o board in the computer. So I ordered a new one (made sure it was the correct one) and I installed it yesterday. Nothing has changed. I still get no light on my Magsafe charger and the computer still won't turn on.

So I guess I'm looking for some information on how to trace this power issue. If the Magsafe board is good, shouldn't it still charge the battery even if the Logic Board is bad? The internal battery cable goes right from the Magsafe i/o board to the battery and doesn't involve the logic board. Logically it looks like the battery should at least charge even if the Logic Board is bad.

So I'm wondering if I'm missing something or if maybe I did something incorrectly. So I'm looking for any information that someone can provide about how power gets routed to the system so that I can try to narrow down where it's going wrong. Any thoughts on this issue would be appreciated.

⟐ Commented December 28, 2011 at 7:45 am -0700

So here's the deal, I got this dead iPhone 4 for doing some trade work. I have tested the logic board in my own phone, as well as the battery and the dock connector. I cannot, for the life of me, think of anything else it could be. All of these parts work when they are put in my phone but when I put them back into the dead phone, nothing happens. It doesn't charge, it doesn't turn on, and the computer doesn't see it. What the heck could it be?

⟐ Answered April 24, 2012 at 4:37 pm -0700

I purchased a liquid damaged A1278 13.3" Macbook on E-bay. When I recieved it itworked perfect except for the keyboard. I ordered a new keyboard and installed it but after reassemby no power. I have tried resitting the keyboard connection, power button, and DC board to no avail. I have been buying and repairing A1181 macbooks with success for a couple years but am stumped on my first A1278. Any Suggestions?

⟐ Answered March 10, 2013 at 8:29 pm -0700

Since this happened, I have tried to power it on but it does not respond when I press the power button. The LED light on the power cord is orange. When I press the button on the side to test the battery, all the LEDs light up to show a full charge. The power button has no response.

Today I removed the back cover and unseated the battery connector. I should have done this 2 days ago, but I'm an idiot. Right now the battery is in the macbook, but it is not connected to the logic board.

What should I do now? I can still smell coffee, so I am optimistic it might still be wet and I can clean it.

I have read about using rubbing alcohol (90%+) to clean up coffee redisue. Can I pour that in the keyboard if my battery is still physically connected to the computer (but unseated from the logic board)? Or do I need to completely remove the battery from the enclosure before I try the rubbing alcohol trick?

⟐ Answer accepted April 14, 2013 at 8:25 am -0700