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EDP LED switcheroo



EDP gurus, I've got a tech question:

During a performance last weekend, a malfunction caused my Overdub LED to
light green when Overdub was engaged, red when it was not -- just reversed
from what they normally are.  You can imagine the confusion and bizarro
loops that did (and did not :) evolve before my trusty sound guy (and EDP
user) Gary Hull and I figured it out.  Pretty trippy.

Gary deduced that it was an eprom software glitch, and suggested a hard
reset which indeed restored normal function.  Yeahhhhh...sigh of relief.
The question remains: are there identifiable factors that might have caused
it??

The only potential variable I've noticed is that the EDP seems to be 
running
fairly hot.  (As in, too hot to touch back on the heat sink area.)
Everything looks fine under the hood, however -- no toastage, solder joints
look solid, etc.  I bought it in Sept. '97, so it does have the clipped pin
5 on IC U12.  However, as mentioned, it has a heat sink and voltage
regulators rather than the switching power module on later models.  Given
the subjective nature of assessing temperature, does this sound normal for
this particular model?

Now I'll always wonder, is green REALLY green?  Is red REALLY red?  And 
what
IS the nature of the Universe?  That's some heavy-duty stuff to be 
pondering
when merely hitting the Overdub button... :)

All that being said, this box is totally outrageous.  Big-time, ongoing
thanks for all the thrills, Matthias and Kim!

Laurie