The stepping motor for the Y axis suddenly stopped working. Among the possible causes is a failed motor driver card. At a suggestion from support, I swapped the boards for X and Y, but did not reinsert the Y card properly. The result is a chip on the motherboard with a burn mark on the top of the package, and smoke curling up. Clearly time to replace the board. My questions are:

1. does the replacement board come with instructions?
2. does it include new stepper motor drives as shown on the catalog pictures?

thanks for your help.