Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
November 16th, 2011, 1:43
I have WD5000AADS-00S9B0 and it's PCB has been burned due to power surge, how can i match the donor HDD for my WD
( in case replace the PCB only and also in case of replace the Head or platters only )
My Model : WD5000AADS-00S9B0
My DCM : DCM: HBNNHT2AHN
MY PCB STICKER : 2061-771640-Q03 01P XC BP02 3Z85 K 0001130 1131
MY PCB : 2060-771640-003 REV P1
So how can i match the donor HDD that can work for PCB or HEAD & Platters swap?
November 16th, 2011, 2:30
Not sure why you would want to 'platter swap'?
If it was a surge you might be lucky enough the the problem is only the TVS protection diode. Do some research on this forum about TVS before you go any further.
November 16th, 2011, 3:38
Nick_CT wrote:Not sure why you would want to 'platter swap'?
If it was a surge you might be lucky enough the the problem is only the TVS protection diode. Do some research on this forum about TVS before you go any further.
thanks for your reply...
what is the TVS please?
can you explain it to me.
November 16th, 2011, 5:36
If you go ahead and make a search on this forum for TVS, it will return a hundred results which will answer all your question.
In a flash, a TVS is a diode.
November 16th, 2011, 16:22
Searching this forum for "TVS" will find absolutely nothing.
Instead, here is the information in a nutshell:
http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.htmlLots of photos of TVS diodes here:
http://www.users.on.net/~fzabkar/HDD/That said, a surge often damages the motor controller chip, in which case your most expedient solution would be a board swap and firmware transfer. If location U12 is vacant, then a firmware transfer is not a simple DIY proposition. However, some board suppliers include this service for US$10 - $20.
November 16th, 2011, 18:33
Thanks fzabkar for your reply.
Yes the motor controller chip has been damaged, it's the same as this chip:

so can you please tell me which PCB i need to replace mine.
i have tried many PCB in more than one shop but they didn't know how to get it work again, so please can you tell me how to get the working PCB for my HDD ?
so i can buy it.
another case i'm not sure but i think there is tech man that he swapped the ROM chip and has lost it ( i guess ) so what is the solution for this?
thanks in advance
November 16th, 2011, 18:34
fzabkar wrote:Searching this forum for "TVS" will find absolutely nothing.
Instead, here is the information in a nutshell:
http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.htmlLots of photos of TVS diodes here:
http://www.users.on.net/~fzabkar/HDD/That said, a surge often damages the motor controller chip, in which case your most expedient solution would be a board swap and firmware transfer. If location U12 is vacant, then a firmware transfer is not a simple DIY proposition. However, some board suppliers include this service for US$10 - $20.
Thanks for your reply.
Yes the motor controller chip has been damaged, it's the same as this chip:

so can you please tell me which PCB i need to replace mine.
i have tried many PCB in more than one shop but they didn't know how to get it work again, so please can you tell me how to get the working PCB for my HDD ?
so i can buy it.
another case i'm not sure but i think there is tech man that he swapped the ROM chip and has lost it ( i guess ) so what is the solution for this?
thanks in advance
November 17th, 2011, 1:27
You can indeed search the forum.hddguru.com site for TVS and get lots of relevant terms, but not by using the built-in search function.
Do a google search for the following:
tvs site:forum.hddguru.com
November 17th, 2011, 3:23
I was able to fix the issue with the search. It was related to the mysql settings. In the future, please PM me about this kind of issues.
November 17th, 2011, 4:30
Strange. I searched yesterday for "TVS Diode" and i got back 600 results (or so).
November 17th, 2011, 9:22
@northwind:
Before Dmitry changed the MySQL settings (thanks Dmitry

), your search would have ignored "TVS" (due to being only 3 letters) and just given results for the word "diode".
I hope that helps to explain what you saw
November 17th, 2011, 10:42
ah, ok, got it. It works correctly now, though.
November 17th, 2011, 17:31
Dmitry Postrigan wrote:I was able to fix the issue with the search. It was related to the mysql settings. In the future, please PM me about this kind of issues.
I apologise. I should have checked again. Thanks.
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