Hello,

The other day the PCB/logic board for my samsung shorted out.

It seems i've lost one of the small components on the board when comparing the board to pictures of a working logic board (picture of my board below)

http://bobandchris.co.uk/hdd/100_2362.jpg

I have found a possible replacement/donor drive to swap out the logic board, but the serial number and part number of the drive is different, but the rest match, would this be a problem?

Also, i carn't seem to find the firmware number, i have 2005.11 on the front of the drive of which i can only assume is the firmware number for the drive?

The details of my drive are as follows:

SP2514N
S/N: SO8BJ1OYB58119
P/N: 1231J2FYB76915
P/V: MS
LGA 488,397,168 250.0 P120
REV.A
E-H011-05-1241(B)
2005.11

Logic board:
BF41-00085A
Poseidon
Rev.10
PATA
88i6523-LFH1
HA13645

Im not totally sure which numbers need to match for the new logic board to work perfectly, i just need to get the data off this drive and then bin it.

The details of the new/doner drive i've been given are:

SP2514N
S/N S08BJ1FP100652
P/N 300312FLC40497
P120 is after the part number
Logic - BF41-00085A
Poseidon - Rev. 10 PATA
LBA - 488,397,168 Rev. A

Would the logic board from this donor drive work with my old drive to just pull the data off onto another spare drive?

Much thanks in advance for any help!

I believe that the Marvell MCU (big "M") contains unique, drive specific calibration data. These "adaptives" would need to be transferred from patient to donor.

Your board may have suffered an overvoltage on the +5V supply. The burnt component appears to be an inductor.

Before attempting a board replacement (which would most likely not work without the abovementioned ROM transfer), I would measure the resistances of the three components in this photo clip (the diode has been removed):

http://www.users.on.net/~fzabkar/HDD/SP2514N_5V_TVS.jpg

Set your multimeter on the 200 ohms range. Also measure the resistance of the component to the right of the inductor. That should tell you if there is a short on the load side of the inductor.

_________________
A backup a day keeps DR away.

Replacing a pcb straight away will work in 1 to 5 percent . Just in case, we can recover your data even if the original pcb is lost or totally destroyed, safely. Or repair and make work again - and test - your pcb even if parts are missing or broken.

Cheers for the advice,

My multimeter is currently on its way to me so i carn't do them tests yet.

If one of those components was to be found shorted, what would be the course of action?

Would it be ideal to still buy this possible donor drive to then be able to take needed componenets off it to doctor the board?

Thanks in advance

Listen carefully :

1) donor board has 5 up to 10% of probability to work straight away - in that case play lottery the same day. If not, you need pro help to make things work.
2) if the problem is limited to a specific section of the PCB you *maybe* can succeed or *maybe* you make more damage when you power it on with common PC power supply. Then you will need A LOT OF PRO HELP to make things work AGAIN.
3) if after tinkering with the PCB then the drive spin up but it is not recognised or clicks, you need pro help.
4) if after tinkering with the PCB the drive doesn't spin up , go to point 1).

Hope it is only 2) , 1st part .

In my stats, except for catastrophic PS failures, all SSU Poseidon / P120 I have recovered had other problems, but it's another story - I have EVERYTHING I need to repair them.

Regarding the donor pcb, i was meaning if its the inductor (or any other small component) which has shorted/broken then if i was to have the donor pcb i could possibly remove components from the donor pcb and (re)solder them onto my broken pcb.

If it is the inductor which has shorted, i assume this powers up the motor as it currently does not spin up, and if i was to replace this with a new inductor (or an inductor from a working donor pcb) then it may spin up again.

I give up.

I thank you for your help, but im not sure you understand what i mean. I understand a full pcb swap would not work in most cases, but taking components from a working board and planting them on a non working board may be a viable way.

Everything is viable, we landed on moon 40+ years ago and neurosurgery is done, don't know if for example it is VIABLE for you to move the MCU or the combo chip .

Time for dinner then it's beer 'o clock , it's saturday

I would only want to move at first any shorted componenets, the inductor is the most damaged from what i can see and if i was to replace that component then that would make it a possible/viable option.

Have a beer on me

If there is no short on the load side of the inductor, assuming that's what it is, then you can replace it with a wire link. I believe its purpose is to filter high frequency noise. However, I suspect that your board, or HDA, has more serious problems. :-(

That said, you need to fully assess the damage before deciding what to do next.

_________________
A backup a day keeps DR away.

Lack of schematics, I believe...

fzabkar, I also have the same problem, I could do with some help please in finding how to recover the data on the hard drive.

I am Reading various posts about this topic but need to understand the basics from the ground up. I live in Brazil and can see a big potential in data recovery. If you have any suggestions about how to set up a business here I would be grateful

Regards and look forward to any help

camelunghi,
see your other post for advice on this.
Also, you have already asked both these questions in other threads.

If you want to learn from the ground up - start by reading all the doc and help sections here and look at as many sections of the forum for tutorials and details. Then, you will come across mention of many other avenues to read such as The Hard Drive Oracle at http://malthus.zapto.org/index.php that has many more docs, datasheets, tutorials, lists of data and resources etc etc.

Then you are able to come back and say "I read this and tried this, and the result was this.. but here is the bit I don't understand.." You will get a lot better result.

Grab some hard drives and play, learn. I don't even fix hard drives really, and I have accumulated around 50 or so in my general PC stuff Ive done. I also WAS going to learn to do DR and bought about 6 or so faulty drives on Ebay for very cheap to play around with. I did fix a drive yesterday JUST using info from these forums.

One thing I have learnt while lurking around here is that I don't think I am going to be starting a HDD recovery business anytime soon There is just too much equipment and time required for it than I am able to dedicate right now.

You could always start a business and hire a pro. Starting a DR Business is like any other. You need a business plan, you need market research and estimates of costs and revenue just like any other. But it is also a demanding job, and you will have to learn a LOT if you are going to participate in the recovery work.

Anyway, that's more than I was going to say... good luck

Thanks for the advice......business wise, I would need someone who is a pro but who would need someone on the ground to get work here. In the north east of Brazil there would be potential to find clients. So it might be a good business proposition. In many ways Brazil has potential as electronics are so far behind.....if I want to buy anything special I have to order from outside the country as buying electronic goods here shows there just isnt the range or availability like in the US or Europe etc.

But maybe all the best pros are so busy they don't need extra work, but it is maybe worth looking into for a pro who has time to spare and enjoys a challenge.

Like most things here - business plans are usually a sign outside and adverts in the newspaper. Whether any ones an expert is an entirely different matter......poor service is the norm here.....Well, it is in the north east of Brazil. If you see all the unhappy gringoes you will understand why. I can tell lots of stories.....which is why I am hopeful if any pro wishing to partner me we could
stand a good chance.

Thanks for the input, cheers!

I think I have found a partner to represent their business here, very professional. They appears they have business plan worked out, for agents and reps. So I will start by just advertising as see the response.

Cheers