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 Post subject: HDD PCB Component burnt. TSV?
PostPosted: June 7th, 2019, 14:51 
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Joined: June 7th, 2019, 14:46
Posts: 2
Location: london
Hi,
I have an old IDE drive , Seagate Barracuda 7200.9 300GB. st3300822a. The device does not spin up, and there is clear and evident damage to a component situated on the PCB of the drive. I have tried my best to photograph the drives PCB and the component. Would anyone by chance know if I could replace this component or if there is a fix - as I would like to recover the data on this drive. Many thanks..

- I have seen a video online whereby someone desolders the chip... Is it that simple? Would I not have to replace the component?

https://pasteboard.co/Iil3BMM.jpg
https://pasteboard.co/Iil327H.jpg
https://pasteboard.co/Iil3DkG.jpg


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 Post subject: Re: HDD PCB Component burnt. TSV?
PostPosted: June 7th, 2019, 16:41 
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Joined: February 2nd, 2019, 1:21
Posts: 157
Location: Sri Lanka
contact DR PROFFESIONAL. This is the best way if you have important data inside.


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 Post subject: Re: HDD PCB Component burnt. TSV?
PostPosted: June 7th, 2019, 16:41 
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Joined: February 2nd, 2019, 1:21
Posts: 157
Location: Sri Lanka
sorry. dubble


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 Post subject: Re: HDD PCB Component burnt. TSV?
PostPosted: June 7th, 2019, 16:58 
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Joined: September 8th, 2009, 18:21
Posts: 11612
Location: Australia
That appears to be a 5V TVS diode. Hopefully this diode was able to protect the preamp from the overvoltage. If so, then removing the diode should be enough to recover your data. However, make sure that the +5V and +12V supplies are OK before powering up the drive.

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 Post subject: Re: HDD PCB Component burnt. TSV?
PostPosted: June 7th, 2019, 18:05 
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Joined: June 7th, 2019, 14:46
Posts: 2
Location: london
fzabkar wrote:
That appears to be a 5V TVS diode. Hopefully this diode was able to protect the preamp from the overvoltage. If so, then removing the diode should be enough to recover your data. However, make sure that the +5V and +12V supplies are OK before powering up the drive.


Potentially hot air desolder the TVS? Would I need to do much more then that? Before connecting power, use multimeter to confirm voltages?? Many thanks for your fast and knowledgeable reply.


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 Post subject: Re: HDD PCB Component burnt. TSV?
PostPosted: June 7th, 2019, 18:14 
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Joined: September 8th, 2009, 18:21
Posts: 11612
Location: Australia
You can snip the diode with flush cutters.

Use a multimeter to measure the +5V and +12V supply voltages at the SATA plug.

https://pinoutguide.com/Power/sata-power_pinout.shtml

Then power up the board on its own and make sure that it doesn't have any obvious problems.

Otherwise you can purchase a replacement PCB with the same firmware version and do a direct swap, without a ROM transfer.

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A backup a day keeps DR away.


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