On 15/11/2014 17:52, John Robertson wrote:
On 11/15/2014, 6:04 AM, Adrian Caspersz wrote:
On 14/11/14 23:50, Rich wrote:
http://hackaday.com/2014/11/13/extre...-a-burnt-pcb/#

[xsdb] had a real problem. His JBL L8400P 600 watt subwoofer went
up in
flames ? literally. Four of the large capacitors on the board had
bulged
and leaked. The electrolyte then caused a short in the mains AC
section
of the board, resulting in a flare up. Thankfully the flames were
contained to the amplifier board. [xsdb's] house, possessions, and
subwoofer enclosure were all safe. The amplifier board however,
had seen
better days. Most of us would have cut our losses and bought a new
setup. Not [xsdb] he took on the most extreme PCB repair we've
seen in a
long time.

...

(added sci.electronics.repair)

I wouldn't quite call this extreme...


Maybe not extreme, but it was clever, very clever...

I've rebuilt PCBs using epoxy to make flat surfaces and then used old
PCB repair trace kit to make replacement traces. Making a small PCB from
some good photos is certainly a good idea!

Extreme might be if you had to do this on the ISS (International Space
Station) for the life support logic PCB.

John :-#)#


Or even Apollo 13. Crew saved by making a life-support CO2 filter from
plastic bag, a manual cover and gaffer tape, now that was extreme repair