There are some suggestions in this thread like freezing the drive, tapping the drive while it's spinning up, opening the case, etc. Sometimes it will come back to life long enough for you to get your data off. If not, then you could consider a data recovery company if you have important data on the drive. If you don't have important data on the drive but you just want a new drive, send it back to maxtor for replacement if it's under warranty. I could be wrong but I don't recall anyone saying that the PCB was to blame (unless you can see that the PCB is visibly damaged) and I think you'd have a hard time finding a replacement PCB even if it was to blame.