WD5000AAKS Main Chip Swap

[Jvanderlinde]

Hi.

I've heard there's a specialist over here who can swap the main chip on a WD5000AAKS.

The drive died from a wrong PSU (External one). My current supplier of PCB plates cannot help me on this one as there needs to be main chips soldered and stuff.

Anyone here who can do the job?

Gr, Jvanderlinde.

[Amarbir[CDR-Labs]]

Hi.

I've heard there's a specialist over here who can swap the main chip on a WD5000AAKS.

The drive died from a wrong PSU (External one). My current supplier of PCB plates cannot help me on this one as there needs to be main chips soldered and stuff.

Anyone here who can do the job?

Gr, Jvanderlinde.

Sir ,
Post a Picture

[fzabkar]

The usual result of an overvoltage from an external PSU is a shorted 12V TVS diode at D4. Sometimes R64 goes open circuit as well. The solution is a no-cost DIY repair.

See http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.html

... and http://www.users.on.net/~fzabkar/HDD/bi ... diodes.jpg

BTW, even if the board is not repairable, then you still don't need to swap the MCU chip. The solution in that case is to reprogram the MCU chip on your replacement board using software costing US$150. That, too, is a relatively simple DIY procedure.

In any case, if you were to contemplate swapping the MCU, you would first need to ensure that it hadn't been damaged by the overvoltage. It would be silly to just go ahead and swap it without performing some very simple checks. Any competent repairer should know how to do this.

Last edited by fzabkar on February 12th, 2012, 5:35, edited 1 time in total.

[Jvanderlinde]

What for ?

WD5000AAKS S/N
WCAPW3775043 / 500GB TRNDA-655-1360B

That is the current model. There needs to be a PCB Swap but only a few experts can do this i was told.

Thx for the quick replies. But with my cheap iron i do not recall myself soldering on a PCB haha. If there is an expert able to swap the PCB...

[pcimage]

We can do this for a nominal fee

PM if interested

But check TVS first, as there might well be DIY solution for blown TVS.

[Jvanderlinde]

I dont think my client agrees with over 249 pounds

I might check the PCB first. But the problem is decent soldering. Its still SMD which is very small.

Will post some pics tomorrow, need to find the right tool to get those screws off.

[harddrivespecialist]

Its still SMD which is very small.

Processor chips is a small SMD chip?

[Amarbir[CDR-Labs]]

Its still SMD which is very small.

Processor chips is a small SMD chip?

Well ,
No Point He Cannot even Provide a Photo

[Jvanderlinde]

The drive actually seems to work, only spins on , clicks a couple of times and spins back down.

(Dangit, moderation pending)





The foam of the HDD melted partially on those SMD's.

[fzabkar]

Your board may be afflicted with a "mimic" problem whereby a faulty MCU produces the symptoms of a head or media fault. In any case, an MCU swap is not required. You just need to read the internal flash memory of the original MCU and then reprogram your replacement board.

See wd5000aaks-00tma0-damaged-t19077.html

AIUI, you should be able to do this using WDR-UDMA (US$150) or WD HD Pro, or the serial versions of these tools.

[pcimage]

Judging by the corrosion around the MCU I would say there could well be a possibility of the PCB beng at fault in this case.

Worth a shot IMHO

[Jvanderlinde]

If anyone might help me out with this PCB, your more then welcome.

My client agreed on soldering the SMD parts; actually i dont think that resoldering would solve the issue with this drive.

[einstein9]

If anyone might help me out with this PCB, your more then welcome.

My client agreed on soldering the SMD parts; actually i dont think that resoldering would solve the issue with this drive.

i agree, something else involved. to know for sure H.S.

[Jvanderlinde]

Dangit.

I'm trying to find a identical PCB based on the HDD type number, but there are many series for the TRNDA WD 500GB disc. Does anyone know if this can do any harm if i'm a few numbers above or below ?

From experience some discs dont complain with a slightly different PCB / Firmware but WD is a newcomer for me.

I've found someone on these forums who can do the job; but i need a PCB first.

[fzabkar]

The repairer alluded to in the following thread is also a PCB supplier:
http://community.wdc.com/t5/Desktop/Bur ... 0291#M8785

[Jvanderlinde]

Thx dude.

Wrote the guy a PM.

[Jvanderlinde]

4 days later: still no response.

Anyone has a clue how to get a donor PCB? Do models differ from the model i have?

[JWCC]

Offer a bounty in the Hard Drive buy/sell thread? You want also any mention of firmware revisions and such on the label. In fact, post a scan of the entire label. Good luck getting your board!

[Jvanderlinde]

A bounty eh ?

Here is the drive.. Dont mention the horrible dirty desk:



Finding a certain Seagate model is'nt as tough as finding an WD model.

[pcimage]

It's especially tough if you cover up the info on the label that's actually needed!