2010 MacBook Pro won't start when power button is pushed.

[macitech]

Hi,
2010 2.66 i7 820-2850
MacBook Pro that I replaced the Tandan Cap now Video works fine.
When I plug power into MagSafe Machine starts up.
Keyboard works letters work and trackpad works.
If I push the power button on keyboard machine instantly shutdown. I try to start by pushing power button and nothing happens.
I tried another keyboard and no difference.
Disconnected everything same issue.
?

 

[Gurmon]

Does the charge light turn green when you press the power button ? Basically is it doing a smc reset ?

 

[macitech]

Yes charge light turn green when you press the power button

 

[Gurmon]

Any corrosion on keyboard connector ?

Whats U5000 area like ? Any components knocked off or out of spec ?

 

[dukefawks]

Issue will be around U5001 or U5703, probably corrosion.

 

[macitech]

Thanks Duke!
U5703 has a burned through pin due to a liquid spill.
Duke is there a dictionary that explains the language for schematics?

 

[macitech]

Looking for replacement chip.
Thanks

 

[dukefawks]

You can remove U5703. Just no way to reset the SMC anymore. Not really a huge deal.

 

[larossmann]

No dictionary, only guessing based on context f the circuit and reading the datasheets when and if they are available. Which signal are you interested in?

 

[macitech]

Hi Louis,
Nothing particular at the moment just want to become more self sufficient quicker is all.
Thanks for responding ill be back prob in the next day or so with a question! lol
Louis Thank You for offering this forum. Invaluable to many of us!