constant restore loop after logic board replace
after replacing the logic board the iPod boots to a white screen asking you to connect to iTunes and Restore. iTunes fails during the restore due to error 1416/1415. This happens in both Windows and Mac OS X (tried tiger, leopard and snow).
Try unplugging all USB devices other than the iPod cable, keyboard and mouse. Sometimes when trying to do a restore other USB devices can interfere in the process. I that doesn't work then you should try to take it apart and replug all of the cables to make sure they all have a good connection. If that still doesn't work then it probably has a hardware problem. That would mean either the logic board, hard drive or possibly even the hard drive cable.