Need NEWB help with WD15EARS-OOMVWBO

[Enor]

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.

[pcimage]

Straight PCB swap will not work.

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

[Enor]

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!

[labtech]

How about DIODE as a keyword and/or MULTIMETER

[Enor]

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.

[Enor]

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.

[networks]

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.

[Enor]

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!

[networks]

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

[Enor]

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

[networks]

If bad just remove

[fzabkar]

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.