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SHORT CIRCUIT WD

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sempre

Post subject: SHORT CIRCUIT WD

Posted: March 24th, 2009, 15:41

Joined: October 14th, 2005, 9:26
Posts: 1060

Hi to all! :mrgreen:

Please infos all gurus... (short circuit wd a knocking )
In P10? :?:

Look model WD400BD

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SHORT CIRCUIT.JPG [ 70.15 KiB | Viewed 5517 times ]

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tetris

Post subject: Re: SHORT CIRCUIT WD

Posted: March 26th, 2009, 2:18

Joined: March 26th, 2009, 1:55
Posts: 2
Location: Budapest

Hi.

Shortcircuiting P9-P10 is supposed to reset the EPROM or what does it exactly do?
I have a few WD5000AAJS drives and I think this would help for a few of them...

Is P9-P10 on this board the same as on yours?

Thanks and Best Regards,

Tetris

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File comment: PCB

wd5000aajs_pcb.jpg [ 366.73 KiB | Viewed 5484 times ]

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rameez

Post subject: Re: SHORT CIRCUIT WD

Posted: March 29th, 2009, 6:30

Joined: June 27th, 2006, 11:33
Posts: 2288
Location: In ur HDD !

It is to destroy Read/write channel data.

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Daisy Woo

Post subject: Re: SHORT CIRCUIT WD

Posted: March 29th, 2009, 7:47

Joined: July 19th, 2008, 17:42
Posts: 64

What you are using to 'short' the pins out is an RC bridge and not a short.

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shaun

Post subject: Re: SHORT CIRCUIT WD

Posted: March 29th, 2009, 9:32

Joined: July 8th, 2006, 6:18
Posts: 222

What's the purpose of using the probe on the photo, which obviously contains the said resistors and capacitors?
Does it belong to one of the big $$$ systems? I'm quite curious on this one

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scratchy

Post subject: Re: SHORT CIRCUIT WD

Posted: March 29th, 2009, 10:11

Joined: August 9th, 2007, 8:40
Posts: 791
Location: United Kingdom

It was used on Hitachi drives as a part of the method of password removal, but advances in understanding of microcode in the NV-RAM make the probes redundant.

the probe in the photos looks like it is one for the Hitachi 3.5 inch drives as issued with PC3000 so yes, it is the $$$ equipment .

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sempre

Post subject: Re: SHORT CIRCUIT WD

Posted: March 30th, 2009, 7:56

Joined: October 14th, 2005, 9:26
Posts: 1060

Hi to all! :mrgreen:

This method has explanation in the manual of pc3000, but it does not have for the model that necessary, only this information that I need. This and the reason of first post.

Thanks advanced!!

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