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Hello all,

I'm posting because I need help with a "fried" hard drive.
I accidentally connected a bad power source to a Fujitsu MHY2160BH 2.5" 160 GB SATA hard drive and I think it got fried (over-voltage). There was no burned smell, but I suppose, from what I've read on the forum that the TVS diode may have done its job (I hope !).

AFAIK, 2.5" drives are powered only by the 5V rail, so there should be only 1 TVS diode and maybe a fuse.
I unmounted the PCB board, but I can't find these components. I post a closeup of the PCB board here:

http://img36.imageshack.us/img36/3250/p1010744hq.jpg

Has anybody ever done a TVS repair on 2.5" Fujitsu hard drives ? The problem is that I can't locate the TVS diode and/or the 5V fuse.
Is it a good idea to buy a similar PCB board (ebay...) and perform a swap ?

Could anyone please help me out with this ? Any help is greatly appreciated. All my data is still on the drive... and I really need it.

Best regards.
 

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Those components are not well marked, there is a zero ohm resistor near the power connector ( Device with "Z" on it. Check that with a Multimeter set on 200 or 200 ohm scale, should read closed or short. This would act as a fusible link. I don't see any obvious TVS diodes on the board, which may well be on a 2.5 inch drive. You could also check across the 5 v and ground on the adapter. This should be open or very high resistance. If it reads very low resistance or short then there is a diode - just be tougher to track it down.. Also check the 3.4 and 12VDC ( even though the drive shouldn't use the 12 ) http://pinouts.ru/Power/sata-power_pinout.shtml
 
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