Western Digital WD10EAVS - please help

[jaseandwave]

This WD WD10EAVS 1Tb was in a WD MyBook but it stopped working, no noise, no smell just as dead as a dodo.

Upon testing the power supply I found it was supplying 20V instead of 12V, so I guess this is the cause.

I'd like to get a similar logic board and replace it but apparently you need to swap the U12 ROM chip. My board has not got a U12 ROM chip so any ideas would be appreciated.

Also I've removed diodes D3 and D4 (I read that this might work) but still no good.

Ideas please!

Attachments

[fzabkar]

Did you check R64 and R67?

Did you try connecting the drive directly to your computer's motherboard? It could be that there is an additional problem on the USB-SATA bridge board inside the enclosure.

[jaseandwave]

Hi, I'll check R64 and R67, what should their values read.

Also, when I plug the drive onto the mother board, the PC switches itself off and wont turn on again untill the drive is removed again.

Thanks.

[fzabkar]

D3 is still present in this photo:
download/file.php?id=2926&mode=view

Have you removed D3 since the photo was taken?

R64 and R67 should measure 0 ohms.

If the PC won't power up, then there must be another short circuit. Measure the resistances between ground and each of the +5V and +12V pins at the SATA power connector.

Here is the pinout:
http://pinouts.ru/Power/sata-power_pinout.shtml

[jaseandwave]

Yes,

D3 was definitely removed, and still same problem. The resistors are reading 0ohms as they should. I'll meter the pins on the SATA connector as you suggest.

Thanks.

[networkpc3000]

hi,
i have this PCB in stock. please feel free to contact me by email or MSN if need. i can help with firmware transfer too.