Power switch circuit for 13" MacBook

[LeRoy O]

I replaced the water damaged keyboard on my white 13" MacBook 6.1, which now works except for the power switch and Keycaps light. I think what happened when troubleshooting, I jumpered the 2 MLB contacts to bypass the power switch and may have made contact with another trace that may have damaged a diode or transistor in that circuit. Plus, I think that the fact that the Keycaps light doesn't work indicates that supply voltage going to the power switch in missing, if that is where the Keycaps LED gets its power. Jumpering the contacts is still the only way to power it up. If anyone has the circuit diagram of this part of the MLB or knows the solution I would appreciate the information. My last resort is to wire an external switch to the contacts and mount it somewhere on the side of the laptop. Thanks for any help.