One of my friends have a toasted harddrive.
A diode on the input is dead, he tried a pcb from a similar disc, but it did not work. The discs were not exactly same ones by partnumber, the drive was spinning up, but BIOS could not see it.
Why is the diode toasted? - I could swap the diode from the other pcb, which have a similar one, but will the "smoke" get out of it? This is the last chance to save something from the drive. The data is not that important, so Ontrack, and similar company's is not an option.
Thanks
EDIT: Forgot the pics!!