I'm trying to troubleshoot my macbook Pro -17" and am looking for a schematic and boardview or parts placement diagram for logic board 820-2610-A dated 2009 on the PCB. Currently the green LED on the adapter is on when plugged in, and the battery light appears to be on and charged. The laptop is completely dead right now and does not respond to the power button. I checked the voltage at fuse F6905 and it looks fine. I'm trying to locate U6900 to see if the Sys_onewire output and VCC are present from U6901. I just can't locate any of these components. If there is a schematic that is for this exact board; that would be great too. Thanks everyone!