WD Balck Caviar 2TB short circuits in dock

WD Internal Drives Desktop & Mobile Drives
1

Hey guys,

Had a very reliable Black just start shorting out the external HDD docks PSU… I tried a second dock and power supply and same thing!! I took the board off the top and had a look and cant see anything visibly blown but I don’t know what to test with my meter… thinking it may have had a 24V PSU plugged in accidently by someone at home so is there a resistor or diode that could be blown that someone could point out for me???

Cheers

Mitch

2

Dude, try to contact the board member named fzabkar

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I suspect that D4 may be shorted:
http://www.users.on.net/~fzabkar/HDD/bigcircuitboard_diodes.jpg

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

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4

fzabkar wrote:
I suspect that D4 may be shorted:
http://www.users.on.net/~fzabkar/HDD/bigcircuitboard_diodes.jpg

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

You sir are my favourite person in the world today!!! hahaha SOLVED. So simple and once you look on the board there is a massive diode symbol and D4 and D3 next to them. I read another forum the other day saying Seagate or someone told a customer to find a component and simply cut it off with pliers and everyone thought he was stupid… well in short that would actually work… I took the D4 off as it was shorted but now I have to source one from Sydney AUS. there is an RS components but I just have to find the part which will be a mission…

Thanks so much again you guys… got my 2TB of Blurays and my complete music collection back up and going… but i will put another D4 up to keep it safe.

Cheers

Mitch

5

In addition to RS Components, there is also Farnell. You can replace D4 with an SMBJ12A.

http://au.element14.com/jsp/search/browse.jsp?N=0&Ntk=gensearch&Ntt=SMBJ12A
http://australia.rs-online.com/web/c/semiconductors/discrete-semiconductors/tvs-diodes/?searchTerm=SMBJ12A

BTW, I’m in AUS, too.

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