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 Post subject: HGST HUH721010ALE600 burnt PCB due to failed USB enclosure
PostPosted: October 12th, 2021, 15:12 
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Joined: February 22nd, 2018, 13:05
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Location: Budapest
Hello,

I have a HGST He10 (model number HUH721010ALE600) that was used in an USB enclosure. One day it was not willing to turn on, it just emitted some kind of strange high pitched electronic-like noise and I smelt something bad. Detaching the PCB shows damage near the power plug (I have tested the enclosure with another hard drive that had serious media problems and the same happened, it even smoked).

I am not a data recovery professional just an enthusiast. I have no non-backed up date on the drive, I'm just curious if it would be possible to repair it - I have friends with soldering skills.

Any comments are appreciated. Thanks in advance and have a nice day.

Attachment:
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Attachment:
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 Post subject: Re: HGST HUH721010ALE600 burnt PCB due to failed USB enclosu
PostPosted: October 12th, 2021, 15:38 
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Joined: November 7th, 2020, 5:31
Posts: 430
Location: The_UK
Remove the diode and check for a short.

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 Post subject: Re: HGST HUH721010ALE600 burnt PCB due to failed USB enclosu
PostPosted: October 12th, 2021, 16:37 
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Joined: September 8th, 2009, 18:21
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Location: Australia
Also check the fuse.

Could we see the PCB in the enclosure? I suspect that its 5V regulator has failed with a short from input to output.

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 Post subject: Re: HGST HUH721010ALE600 burnt PCB due to failed USB enclosu
PostPosted: October 13th, 2021, 14:42 
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Joined: February 22nd, 2018, 13:05
Posts: 23
Location: Budapest
fzabkar wrote:
Also check the fuse.

Could we see the PCB in the enclosure? I suspect that its 5V regulator has failed with a short from input to output.


Thanks for your reply fzabkar. Could you please clarify where the fuse is?

I think you are right. We have measured the output of the AC adapter and it is fine (12.1V), here are the pictures of the enclosure, it is branded Orico. What I have highlighted on the second picture is very hot.

Attachment:
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Attachment:
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20211013_075603.jpg [ 382.04 KiB | Viewed 754 times ]


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 Post subject: Re: HGST HUH721010ALE600 burnt PCB due to failed USB enclosu
PostPosted: October 13th, 2021, 15:14 
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Joined: September 8th, 2009, 18:21
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Location: Australia
See attachment.


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 Post subject: Re: HGST HUH721010ALE600 burnt PCB due to failed USB enclosu
PostPosted: October 13th, 2021, 15:37 
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Joined: February 22nd, 2018, 13:05
Posts: 23
Location: Budapest
fzabkar wrote:
See attachment.


Thank you very much. So you think if I'm lucky I might end up with a working drive after replacing the 5V TVS diode and the fuse(s) if necessary?


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 Post subject: Re: HGST HUH721010ALE600 burnt PCB due to failed USB enclosu
PostPosted: October 13th, 2021, 16:11 
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Springdale wrote:
So you think if I'm lucky I might end up with a working drive after replacing the 5V TVS diode and the fuse(s) if necessary?

You just need to replace the fuse or bypass it, if there are no other problems. Remove the shorted TVS diode, of course.

As for the bridge PCB, I suspect that the 8-pin IC under the DC socket is the culprit.

TVS Diode FAQ:
http://www.hddoracle.com/viewtopic.php?f=100&t=86

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 Post subject: Re: HGST HUH721010ALE600 burnt PCB due to failed USB enclosu
PostPosted: October 16th, 2021, 15:13 
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Joined: February 22nd, 2018, 13:05
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Thank you very much. Appreciate your help! Wishing all the best.


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 Post subject: Re: HGST HUH721010ALE600 burnt PCB due to failed USB enclosu
PostPosted: October 18th, 2021, 10:32 
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Joined: October 3rd, 2005, 0:40
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Location: Hungary
It is probably sufficient to do what Franc said if you only want to copy the data off, but for continued protection you need to replace the failed components.
pepe

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