I’ve got a few dead hdd’s after setting up a NAS in an old pc and connecting them with a dodgy molex to sata connector. 2 HGST and 2 WD (WD120EMAZ, WD120EDBZ) that have the same pcb (004-0B41714)
Looking around online and at replies from @fzabkar, it looks like they might be fixable either by a pcb swap and transfer the bios chips, or replacing the dead components on the broken pcb. So first I’m thinking to try repairing the pcb’s.
The data on the drives wasn’t important, although it was the main copy and the backup, so if I get the data back it will be a bonus.
So far looking at one drive (WD120EMAZ) there is no visible damage on the PCB, but measuring continuity on the board it looks like this fuse is blown. So I’m hoping it might be just a case of replacing that, and the same on the other disks
The question is can anyone advise what fuse that is? and if they can be purchased on there own? or if it is better to get a replacement pcb and take the components from that?
Also what other components might be damaged that would be easy to check before going further?
I don’t have an electronics background so I’m learning as I go. I like trying to fix things when they break. So I’m going to get an SMD Soldering practice board and some relatively cheap soldering gear to try that first and see how much harder it is than it looks.
Any pointers would be greatly appreciated.
Thanks
