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Fried PCB - How do I identify the bad component??

 
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domperignon
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Joined: 04 Nov 2010
Posts: 2
Location: Pacific Northwest

PostPosted: Wed Nov 17, 2010 12:03 am    Post subject: Fried PCB - How do I identify the bad component?? Reply with quote

Hey y'all - I'm new to this forum, so bear with me!!

I had a situation... where someone accidentally plugged a 17v power supply into an external hard drive of mine. Not a good idea!! So now it's fried... I swapped PCBs thinking that if I got one with a manufacture date within two weeks of the one of my drive, maybe I'd be in luck!

No such luck. It's a Toshiba drive, and I've now learned that they calibrate each hard drive uniquely at the factory, and thus even the two hard drives coming out next to each other on the assembly line wouldn't be compatible...

Which brings me to figuring out which component on the PCB is fried, then replacing it. Luckily, since I already bought an identical PCB, I think I have all the replacement parts I need. My problem is being able to figure out which part(s) is burned out. Any ideas? I guess if I could get a schematic or something I could test each ocmponent with a multi-meter, but I wouldn't even know where to start to try to find one...

Help!! Thanks!

Dom
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sunnydreamspace
Deadharddrive regular +5


Joined: 04 Jan 2009
Posts: 540

PostPosted: Wed Nov 17, 2010 12:22 am    Post subject: Reply with quote

Dear Dom,
please send both image of your PCB to me by email. i will show you which one you need to swap. you'd betters use good PCB instead of.
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provide Hard drive PCB,entire drive/ Data Recovery service.... big HDD resource. talk to me immediately! sunnydreamspace@hotmail.com
skype: sunnydreamspace
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domperignon
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Joined: 04 Nov 2010
Posts: 2
Location: Pacific Northwest

PostPosted: Wed Nov 17, 2010 12:24 am    Post subject: Reply with quote

So you think it's a better idea to replace the chip that stores the data that's linked to the platters rather than replacement burned out components on the original drive?
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harddrivespecialist
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Joined: 29 Dec 2007
Posts: 471
Location: Providence, RI. Boston, MA USA

PostPosted: Wed Nov 17, 2010 3:23 am    Post subject: Reply with quote

Post those pictures, we'll show you what could/should be done.
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fzabkar
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Joined: 02 Apr 2010
Posts: 210

PostPosted: Mon Nov 22, 2010 1:04 am    Post subject: Please post your images to the forum Reply with quote

[quote="sunnydreamspace"]please send both image of your PCB to me by email[/quote]
Why?
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