Inverted power issue [HITACHI hts541616j9sa00]

[Andronizer]

Hello everyone, I have a problem with my 2.5 SATA HDD. I gave him an inverted power (+12 instead of +5), so now it`s not working.
http://www.imagecross.com/11/image-hosting-view-29.php?id=875827022010866.jpg
http://www.imagecross.com/11/image-hosting-view-29.php?id=208427022010867.jpg
The thing, marked "N" near the F1 has no conduction, as far as I know it`s a power protection diode, in the case of inverted power it must become a conductor preventing the hdd from further damage... But it`s not blown, and as I said has endless resistance.
So, the right leg of this diode has -5V and so does the 3 elements (small, mid, bigger) at right of it and 3 small jumpers.
One of the main questions is: where does the +5V (7,8,9 pins) go except the left leg of N diode? There`s no connection for +5V on the other side of PCB.
And the main question: what can be the reason of the dead HDD?

[harddrivespecialist]

And the main question: what can be the reason of the dead HDD?

I gave him an inverted power (+12 instead of +5), so now it`s not working.

[fzabkar]

See this thread:
hitachi-5k160-hts541616j9sa00-swap-pcb-t12119.html?hilit=hts541616j9sa00

I'm not a DR guy, but I suspect that the motor controller IC (TLS2501) may have taken a hit. It would be connected directly to the +5V supply.

If you need to replace the board, you may need the following parts to be working.

LE25FV055T, 512Kbit, 64Kx8, Sanyo, Serial flash memory:
http://www.semiconductor-sanyo.jp/ds_j/NA0447.pdf

BR93L66RF-WE2, Rohm, Microwire BUS Serial EEPROM, 256×16bits, marking RL66:
http://www.rohm.com/products/databook/g ... 76-w-e.pdf
http://www.rohm.com/products/databook/e ... r93l-e.pdf

I would confirm that neither are powered directly from +5V. To this end, test for continuity between the 4R7 coil (L1) and the power pins of each IC.

Best of luck.

[poehere]

You more than likely blew your TVS get a voltage meter and check this out

[fzabkar]

You more than likely blew your TVS get a voltage meter and check this out

I can't see one on this board.

[hddguy]

More than likely Fuse is damaged. This is the component marked 'N'.

[Andronizer]

Sorry, for no answers, here`s what`s going on...
http://www.techsupportforum.com/hardwar ... ost2615205
Thank you all very much!!!