Fried PCB on Barracuda 7200.10 what Diode to replace?
January 26th, 2012, 20:32
Ok I accidentally plugged in a 19v laptop adapter onto an external maxtor enclosure (woops!)
And it fried, attempting to plug it into the normal 12v afterwards caused the PCB to just smoke, I didn't look at which part smoked instead immediately opted to unplug the drive. I've seen (based on other posts) that this is not uncommon, but which part should I remove/replace to get it back working in an enclosure.
I'm guessing it's one of the 2 top right Diodes (I think I remember seeing one of them fry)
Far right Diode: 721 LEM
Slightly left of it: QE R721
And it fried, attempting to plug it into the normal 12v afterwards caused the PCB to just smoke, I didn't look at which part smoked instead immediately opted to unplug the drive. I've seen (based on other posts) that this is not uncommon, but which part should I remove/replace to get it back working in an enclosure.
I'm guessing it's one of the 2 top right Diodes (I think I remember seeing one of them fry)
Far right Diode: 721 LEM
Slightly left of it: QE R721
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Re: Fried PCB on Barracuda 7200.10 what Diode to replace?
January 26th, 2012, 20:49
"LEM" is the 12V TVS diode. That's the usual suspect.
See http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.html
See http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.html
Re: Fried PCB on Barracuda 7200.10 what Diode to replace?
January 26th, 2012, 20:51
fzabkar wrote:"LEM" is the 12V TVS diode. That's the usual suspect.
See http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.html
Thanks very much! exactly what I was looking for.
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