WD Blue Scorpio 1TB: Need help finding TVS to fix 2.5" Harddrive

Xenohunter

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Jan 10, 2015
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Hi Guys,

This is my first time seeking hardware/electronics help, and honestly, i'm a bit of an amateur at stuff like this. But here's the basic story:

1. I plugged a 1tb WD Blue Scorpio drive (http://www.wdc.com/en/products/products.aspx?id=800) into an external 2.5" enclosure. It just needs 2usbs to power it, no power lead etc.
2. This worked fine for a good few months until I then tried to plug it into a powered USB hub, which seemed to short both the enclose I was using and something on the drive itself.
3. I got a new enclosure but now when it is plugged in it doesn't make any noise/attempt to spin up.
4. So i got reading online and apparently something called a TVS diode/s may have fused, but after taking the drive apart with my T5s and accessing the circuit board, I can't see it.
5. Basically I just need help finding this TVS diode so that I can try and recover my data, which is semi-critical. Please circle the right one/ones and provide the number/code thing- i'm not very good with this stuff.

Here are some pictures of it:

http://www.storagereview.com/western_digital_scorpio_blue_1tb_review_wd10jpvt has some very clear pictures of the board, this is identical to mine.

Actual pics taken by me:

http://i60.tinypic.com/16bkm8l.jpg

and

http://i59.tinypic.com/29uvdc0.jpg


Thanks for taking the time to read my question and i hope someone can help me rescue this HD :)
 

PizzaTheHutt

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Jan 2, 2015
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A straight PCB swap yielding a working hard drive isn't as rare as you would think - I had a WD Passport 2tb that failed a while ago - it showed up in device manager but wouldn't spin up. After swapping the PCBs it works fine. I retrieved my data and the drive finally failed last month - 4 months of regular use after the swap. I think that if you source one with the exact same firmware and model number you should be fine but as with all data recovery operations, there is some element of risk that it won't work.
 

Xenohunter

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Jan 10, 2015
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Thanks for your reply.

From what i've read on the internet a straight pcb-pcb swap working is quite rare, could you confirm that it would work fine with this model of harddrive?
 

PizzaTheHutt

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Jan 2, 2015
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A straight PCB swap yielding a working hard drive isn't as rare as you would think - I had a WD Passport 2tb that failed a while ago - it showed up in device manager but wouldn't spin up. After swapping the PCBs it works fine. I retrieved my data and the drive finally failed last month - 4 months of regular use after the swap. I think that if you source one with the exact same firmware and model number you should be fine but as with all data recovery operations, there is some element of risk that it won't work.
 
WD drives store unique, drive specific, "adaptive" information in flash memory. In this particular case there is an 8-pin "ROM" at location U12. If the donor and patient "adaptives" happen to be closely matched, then the data may be recoverable, but I wouldn't continue to use such a drive.
 

Xenohunter

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Jan 10, 2015
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Thanks for the advice everyone. May order a replacement PCB and see if it works w/o transplanting the rom, if not, I may have to consult an electronics specialistist and have it fixed by them.

Thanks again!
 

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