Greetings! I am having a blast reading the threads, but for the first time I'll stop lurking and get myself into the fray.
A long time friend of mine gave me an
Hitachi HDT721010 drive: filled with personal family and
of course without a backup
.
The drive is not recognized in Windows or Linux, and repeated clicking is audible. It from a Lacie USB enclosure.
Bear in mind that i don't know the previous history of this drive: maybe it fell, maybe it was attached to a wrong adapter or experienced overvoltage from an adapter. It is possible my friend asked somebody else, who already tried some standard procedure (maybe imaging through a Linux distribution instead of Windows, and so on).
Thanks to some mycology forums, I managed to open it in a (for a DIY approach, at least) suitable environment:
[*]no apparent marks on visible platter
[*]filter is clean
[*]drive spins up
[*]
after spinning up, the head moves toward the center, then comes back toward the resting position, then the drive beeps one time; afterwards the cycle repeatsReading The thread "testing drives with some confidence", I was thinking about testin the PCB while separated from the drive, maybe the TVS diodes.
While doing that, I manage to procure another PCB of the same drive, manufactured roughly in the same period and with similar ICs onboard (first two lines on the pcb sticker match).
Is it reasonable to think that the issue might be in the PCB? Maybe in finding the
Service Area track?
If so, would it be reasonable to
swap the PCB and solder on the new PCB the two EEPROMs (U5 and U7 in the pic)form the damaged drive?
A photo of the PCB and a vid of the... well, beeping is availble here:
https://www.dropbox.com/sh/fkn1yz0d07yy1t0/AADPJJ9n6CEq7cElCwllFAvAa?dl=0Any help would be greatly appreciated. Also in the form of useful threads, obviously.
I may consider buying some software, but since I'm doing this
pro bono and for personal research, expensive professional tools (PC3000) are out of the question. Instead, sodlering, reading and writing EEPROMs are not an issue.
Thank you!