In message <4290597B.20804 at gjcp.net>
Gordon JC Pearce <gordon at gjcp.net> wrote:
From past experience with these bloody awful
contraptions, it's because
that's the chip he's currently cooking his breakfast on...
I had my Acorn Master 128 set up and running, with a logic analyser hooked up
to the 1MHz Bus port (debugging some hardware - the analyser makes it soo
much easier). A few seconds later, I noticed a crackling noise.. followed by
copious quantities of foul-smelling Magic Smoke doing its level best to
escape from the PSU area of the plastic case. Needless to say, the machine
was rather quickly unplugged and relocated to a well-ventilated area (i.e.
outside) until the machine stopped smoking.
What did I find after I ripped the machine apart? A Class X2 mains capacitor
that had arced over, shorted out, then overheated. The ensuing smoke-dump and
flamefest ripped the casing apart on one side and reduced part of the casing
to a pile of carbonised plastic.
If anyone wants to see the damage, let me know and I'll put the photos online
somewhere :)
Later.
--
Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB,
philpem at philpem.me.uk | ViewFinder, 10BaseT Ethernet, 2-slice,
http://www.philpem.me.uk/ | 48xCD, ARCINv6c IDE, SCSI
... I'm spending a year dead for Tax Purposes