At 19:30 -0500 9/17/06, Jochen Kunz wrote:
Sometimes it helps this old hardware to be
disassemble the whole machine, reaseat all PCBs and connectors and try
again. (Sometimes connectors get a litle bit of corrosion etc. that is
cleand out by un- and repluging the connector.)
Thirded (1). I have a Mac Plus with Brainstorm accelerator
(16 MHz 68000, plus SCSI chip upgrade). It has been giving me fits
with intermittent operation for years. Tuning the 5V setting on the
analog board *right up* against (but not over) the crowbar seemed to
help, but it'd still reset periodically. Best diagnostic I have is
(unfortunately) still a Radio Shack Archerkit analog VOM, which does
not show momentary Voltage transients.
Finally, this month, I was doing battle with it again, got
the 5V setting tweaked up and the machine running face down, but then
it failed when I set it back up on its feet. At long last, during the
post-failure examination, I took loose and re-seated the power cable
from the analog to digital board at the *analog board*
end. I'd done
this dozens of times at the *digital board* end - that's a
likely to take out the end of the CRT when my hand slips - but not at
the analog board end.
Machine has been running without problems since then. Wife is
re-addicted to Dark Castle (and I have to put in a good word for
Delta Tao on that score, they just sold me, at a discount, the
original software! (2) ), kids getting addicted to Concertware +
MIDI. Next project may be to find a MIDI interface for the thing and
start learning more about digital music.
(1) I'm curious about the etymology - where does the expression
"kreidlered" come from?
(2) Not affiliated, but if I had to choose one company in the field
to hold up as wonderful, Delta Tao would be it.
Mark Tapley, Dwarf Engineer
(I haven't cleared my neighborhood)