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U5805 Pin 2 is 4,9 volt other pins 0 volt

I don't have PP18V5_S5_r

The trackpad sometimes works just a little bit on some parts but its mostly dead. Tried other cables and trackpads with same resoults. The connector gets very hot when the computer starts. Everything else seems to work. The board is clean and have no signs of liquid

Have this board that has EFI lock. I don't know anything about how that works. I have identical boards i the pile. Is it posiible to take U6100 from one of the other boards and replace it? I don't know anything about programming

I know. One day I might learn to replace smc

after some heat on the smc SMC_REST_L is 3,4 volt but PPBUS_G3H is still 12,27 volt

just noticed that the area around the smc looks a bit bad. I'll try a reflow

SMC_REST_L is 0 Volt The other two isn't low

Had no green light on this board. PPBUS_G3H was 0 volt. Replaced U7000 and now I have green light but only 12,27 Volt on PPBUS_G3H Can it only be dead SMC or is it something that I'm missing?

When the computer is running SMBUS_SMC_BSA_SCL goes up to 3,4 volt. But when it is off it's only 1,5. checked three other macbooks and they are all showing 3,4 when off. dukefawks Dont understand what you meen with this "I doubt you checked this as the BIL does not work and there is no power...

SCL is 0,497 and SDA is 0,500

Something is pulling down SMBUS_SMC_BSA_SCL . I get 1.5 volt at pin four on the battery connector. On another bord with same battery I get 3,4 volt

have done that. The big problem is that it wont start from battery. Don't think that BIL need to be connected to start from battery

or maybe not....

yes, but indicator on the side doesn't work. My guess right now is R5280 or R5281

PPBUS_G3H 12,15 volt with only battery. Battery status on OS X is normal

This one won't start from battery and it won't show anything on the battery indicator. With magsafe connected it starts and charges the battery. There is no X on the battery icon. It runs from battery if magsafe is disconnected. Nothing changes if I disconnect the BIL

Found it. Bad trace between J5714 pin 15 and U5701 pin 39. Noticed that P didn't work either. Now it's all perfect. Thanks again for the help

yes I understand what you are writing. It is only caps lock that doesn't work no matter what keyboard I'm using. J5714 pin 14?

no light and no function. I think that I'll try another connector tomorrow. Is there a schematic over the keyboard? What key goes to what pin?? didn't find on google