SHORT CIRCUIT WD

[sempre]

Hi to all!

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

Look model WD400BD

Attachments

[tetris]

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

Attachments

PCB

[rameez]

It is to destroy Read/write channel data.

[Daisy Woo]

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

[shaun]

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

[scratchy]

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 .

[sempre]

Hi to all!

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!!