Released April 2010 / 2.4, 2.53 GHz Core i5 or 2.66, 2.8 GHz Core i7 Processors

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Won't power on, totally unresponsive.

Ok, so this machine has has a liquid spill (looks like coke) and won't power on at all. No fans, no noise, nothing.

When I plug in the charger, the light jut goes green, does not charge.

The battery indicator button does nothing.

I've taken the logic board and used pure isopropanol to clean the whole thing top to bottom as well as the case etc. No change.

Tried resetting SMC, no change. Also tried tricking the SMC into booting the machine by holding the power button and plugging in the adapter afterward which DID work the first time. I didn't have RAM installed so it beeped as you would expect but after putting the RAM in I can't get it to repeat this. Dead as a doornail.

Is there anything I can check on the motherboard? Like points to test with my multimeter for power or where the pads are to power on without the keyboard? Maybe there is something I missed?

Answered! View the answer I have this problem too

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I should note that though the keys are obviously where the liquid entered (crunchy keys) the power button does seem to work as I can hear the power adapter making noises when I press the power button. Other keys might be perminantly pressed down though. I've also never seen this machine power on, though the person who had it before me swore blind it powered on and froze at the apple logo.

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Does no one just have a diagram of test points, or just the pads to short to power on without the keyboard attached?

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Well I have it mostly working now, when I plugged it in I noticed a ticking sound coming from the middle of the logic board. Then I noticed an inductor was blown. Replaced it from a parts board and boom all worked great.

Only thing now is the battery doesn't work, or something in the path to the battery doesn't work. The battery status has an x through it and it says there's no battery found. Any ideas on this would be appreciated.

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what color is the X, red or black?

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Hi Joel, hopefully you see this post as I have a similar problem to yours. just wondered if you could explain how you changed the inductor (i.e. did you have to solder it or does it unclip). I haven't got down to disassembling the logic board yet but if there is soldering involved (not to mention actually getting the correct inductor), I may give it a miss.

As far as your battery charging is concerned, it could be a faulty Magsafe board. My battery charges OK but I get the same clicking when I try to boot up and no power initiating noises when the power button is pressed. I have checked the hard drive by removing and connecting to another computer and it is fine, so that is not the reason for the clicking as such, although I cannot be sure it isn't the hard drive where the noise is coming from when it is installed in the Macbook Pro. Perhaps the hard drive isn't getting sufficient power and is clicking as it tries to initiate itself. I can't imagine where on the logic board the noise could be coming from.

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The inductor was surface mounted and yes, soldered to the board. You would need an SMD rework station too due to it's design. It's a shame since it's a part that's worth less than 50p. Check on your board for a small round component like this: http://media.digikey.com/photos/Sumida%2...

If you push on it and the ticking changes the likelyhood is that's your problem. Of course there could be lots of things making a ticking noise but not if nothing else turns on.

I changed the magsafe board, battery and battery status board, none fixed the issue.

If your HDD is ticking it's almost certainly dead but you have confirmed that's not the case. If nothing else powers on then I think you are looking at the same problem I had. I have some spare inductors of the same value if you want them, I'll not have a use for them now.

How did your macbook die? Liquid? Just stopped turning on? More details are needed.

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Thanks for the quick reply Joel. After further checking of the notebook I am certain the clicking noise is coming from the logic board and assume it is some sort of power supply relay which is constantly tripping and then re-setting as it tries to supply power to the board. The short in the damaged component(s) on the board would be causing this. Since my soldering expertise is fairly limited and I don't have access to an SMD flow station, I think taking on the repair of these damaged components is out of my league. Looks like I will have to bite the bullet and try to locate a secondhand logic board that isn't priced too highly. Thanks again for your help and good luck with your own endeavours.

BTW the MacBook Pro died, we think, from a power spike which happened during a lightning storm. The owner uses very good surge protection but I doubt anything will stop a lightning strike going through the lines. He is probably fortunate it didn't take out the notebook power supply as well.

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Joel will be eternally grateful.
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