How to determine site of HD related problem in iPod Classic this 160gb

I definitely have a problem related to the hard drive on my ipod. It will not do anything beyond go to the "Restore using Itunes", "Do Not Disconnect", or "Ok to Disconnect" screens both when I have it on its own or plugged into a computer or wall outlet; I have run the manual HDD SMART diagnostic and it won't go past the "opening disk" screen. I opened the thing up and secured all of the connectors, no change with activation/formatting or with diagnostics. I ordered a new hard drive from ifixit, plugged it in, same result with trying to activate or format. The diagnostic did work but it returned some pretty abysmal info:

Retracts: 196615

Reallocs: 200307

Pending Sectors: 196611

Poweron Hours: 196635

Start/Stops: 199947

Temp: Min 19C

Temp: Max 51C

So is this a failed logic board, or connector or did I get a bad second hard drive?