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Maxtor DiamondMax 21 STM3250620A board
http://forum.hddguru.com/viewtopic.php?f=15&t=31558		 Page 1 of 1
Author:  Semaphor [ July 10th, 2015, 21:58 ]
Post subject:  Maxtor DiamondMax 21 STM3250620A board
I have this DiamondMax 21 hard drive that decided to stop working. When you plug it into the PSU, the whole system shuts down. I took the circuit board off the HDD and plugged it in by itself; same result.

Anyway, I'm looking for a replacement for the board. Any help with this is greatly appreciated.

On the chip it reads:
- ST MV08BB
- 100404195
- V470BB16ETR
- 96613019
- AA145
- TWN 99,626

Back Side:
- 100406538 REV A


Image


Image
Author:  pcimage [ July 11th, 2015, 4:11 ]
Post subject:  Re: Maxtor DiamondMax 21 STM3250620A board
Check the two black TVS diodes, bottom right of your photo.

Search this forum for "TVS" for further details.

It might save you buying a new PCB :-)
Author:  fzabkar [ July 11th, 2015, 4:32 ]
Post subject:  Re: Maxtor DiamondMax 21 STM3250620A board
http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.html

http://www.users.on.net/~fzabkar/HDD/ (photo clips)
Author:  Semaphor [ July 11th, 2015, 13:11 ]
Post subject:  Re: Maxtor DiamondMax 21 STM3250620A board
Thanks for the info, guys.

The 5V diode marked below is showing <1 ohms in both directions. I guess it's time to pull that sucker. The other diode is showing ~600 ohms in one direction and 0 in the other. Probably fine?

Image
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