Hi there....I'm very new to the forum and to this whole concept of recovering data. I have a problem and was wondering if anyone could help me with it.

I fried my PCB by plugging in my laptop power cable and not realizing it until I smelled the burning. I can clearly see that one of the chips is burnt. I found a PCB with the exact same specs, by ordering a new drive. The drive has the exact same specs and the number on the drive (2060-771698-002 RevA) is an exact match. I tried to do a switch, and the adapter is recognized (its a USB external adapter) but the drive is not recognized.

I realize there may be something that I have to do with the BIOS, but I don't know what to do at all. Does anyone have any suggestions on this? I really would like my data back, but spending a couple grand to recover it is way outside the budget.

Thanks!
Enor.

Straight PCB swap will not work.

Search this forum for "TVS" and you will probably find your answer to the "burnt chip"

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Thank you, but I did a search for that term and it didn't let me. Any other suggestions to add to the search? Thank you!

How about DIODE as a keyword and/or MULTIMETER

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Thank you so much. Is there any way that you can show me on this picture where the TVS Diode is? I thought that it was a burnt chip, but it doesn't look as obvious as I though it did the first time I looked at it. I definitely smell burning and the drive doesn't power up, so it does sound like it could be that.

http://www.flickr.com/photos/hdd-donor/ ... hotostream

I'll try to upload my own picture later, when I have access to a digital camera.

Thanks again for the help! I feel like things are looking up.

Hey there, I've uploaded a couple pics of the PCB board if anyone has a chance to take a look and see if they see anything obvious. I'm just not seeing anything obvious like I thought I did at first.

http://imageshack.us/photo/my-images/96/img3359jh.jpg/

http://imageshack.us/photo/my-images/600/img3360y.jpg/

It seems like the burning smell is concentrated more around the area with the 4110 on it. After it heats up a bit it starts.

Thanks again for all the help!
Enor.

D3 and the other one next to it on the right hand side. Yes a picture of your board is required for us to see what burned and go from there.

So if I (somehow) remove both D3 and the one (I'm assuming you mean it's the one in the corner that looks very similar) then I should be able to run it, at least long enough to get the data off of it? Or am I misunderstanding?

What is the best way to remove them?

Thanks!

Check them with a multimeter if not sure how use google how to check diode. You need soldering iron to remove them.

If they are bad, I should just remove them? Should I then solder the spot then?

If bad just remove

Use flush cutters to snip the pins of the bad diode. I haven't tried fingernail clippers, but they might just work, too.

BTW, a 19V laptop adapter usually takes out D4, not D3.

Measure the resistances of zero-ohm resistors R64 and R67 on the 200 ohms range of your multimeter. They should both be close to 0.

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