7 May
2005
7 May
'05
3:39 p.m.
Vintage Computer Festival wrote:
I still wonder about the diodes/capacitors (assuming a conventional
circuit) in the raster correction area....
On Sat, 7 May 2005, Jim Battle wrote:
...
Mine produced smoke too :( Where did yours smoke
from? I want to get
mine working again. It seemed to have come from the CRT section. I'll
bet I have a smoked cap somewhere.
I didn't see any smoke. The previous owner reported it, so it was just
speculation on my part that it was dust cooking off the CRT neck.
A very common problem reported is that the switching power supply
sometimes wouldn't start oscillating and it would result in a cooked
machine.
If an SMPSU fails to oscillate, it gives no outputs (well, an isolating
one does anyway, and anyone who designs a computer that's not isolated
from the mains input is criminally insane!). It will
not cook anything
else. But it'll probalby blow its own chopper transistor and
assorted
other parts...
-tony