Hi all, hope someone can help with this. I picked up an MBA Rev A 2nd hand which was sold as broken. It didnt power up and no light comes on the AC adapter. I've just replaced the logic board with one I got from an ebay seller who assured me is working (good rep and his story of breaking for parts due to hinge damage seems plausible as he also gave me the top casing which shows damage to hinge cowel). Again with the new logic same again, it looks like this -No power led on AC adapter, it does power my MBP and when using the MBP AC on the MBA there is no light on the adapter again -No boot sounds -No display -No clicking sounds (although there is an almost imperceptible ticking approx every 1 second when plugged in, doesnt sound like a HDD ticking though and you have to press you ear right to the casing to hear it) I'm looking to replace the power connector for the MBA as I can't think of any other components which would prevent powering up. I have tried to boot with the battery in and removed, no change. Anyone have any idea if there could be any cause apart from the power connector on the MBA which could cause this to happen. Going nuts pumping money into what appears to be a dead duck. Cheers.