we had a proto board that halfway through building developed a short, part
had to be out that day of course. After 3 people looked at it for half an
hour we were still no closer to finding it. Wound up pulling the valuablle
chips and connecting a 12V SLA battery across 5V and gnd, found the fault, a
tantalum cap and failed got a few choice holes burnt into the desk (i'm not
joking these are serious holes) and blew a 5v regulator (understandablly I
think, I really should have removed that too). A note to all who try this
method AIM AWAY FROM FACE. Seriously that ammount of energy and things go
pop with a bang.

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Andre Thomas
Sent: Saturday, April 24, 2004 6:10 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE:] Power Supplies


Incidently, I did this with an amplifier which was in my car... Kept on
blowing fuses so I replaced the fuse with a piece of copper wire to see
where the smoke comes from.... Replaced some mosfets and now everything
is working perfectly again :)

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Peter L. Peres

You can always set the limit high and troubleshoot by observing the
smoke source if that's your personal style ...

Peter

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