I have a project that I have hit a wall on. I need your guidance!
I need to find the spots on the board for the 4 USB connections.
The attached photo is of the board.
There are 4 connections I need to find are: 5v+, data -, data +, ground
It came out of an Apple MacBook Pro early 2008 A126C w/ bad mother board.
I've found instructions online for the models newer and older than mine on how to solder a USB cable to the controller board to use the keyboard and trackpad. I can't find anyone who has figured out the connections on mine. Can anyone help? I don't even know where to start… Is this even possible to do? I have searched the other topics but none had suggestions on how to find the connections.
Any thoughts or insight is welcome at this point!
Thanks!!!
Best Answer
The CY8C24794 has USB D+ on pin 20 and D- on pin 21. Tracks from these pins appear to go to the connector on the lower right. Here we also see a thick trace with a pad marked '5V0' which I am guessing is USB +5V. Ground is probably connected to the grid pattern on the PCB, so should be easy to meter out.