The 6-sided K2 Case, I propose, can be put into
a violin-case permanent pre-stressed condition,
common to many string instruments - when they
notorious Bail - is pre-stressed installed,
with the Long-Screw method. Many installers have
noted the post-stress bowed cover plate, after
their long-screw install. "... but it straightens
out when installed".
I propose the whole case, and any attached pcbs,
and possibly some pcb-installed components -
all now share in that bowing process, during
long-screw installation. Maybe the LCD display,
perhaps installed L's, possibly pcb component and
IC shorts, that mysteriously showed up only after
a few months service?
I'm sure this all sounds silly - but my
"bend-bail-1/4-inch-in-a-vise" method, eliminates the
distorted 6-sided K2 case condition. Hypothesis -
let's say the
bail is pre-bent 1/2" too long, but installer used
the long-screw method and temporary compression,
to get the very long bail intalled on panel. Then
K2 builder installed this bowed panel on his or
her K2 - and in effect straightened it out supposedly
flat with body screws. Then the entire 6-sided case,
would now be-prestressed violin-style by that original
too-long bail.
Sounds, I know, like an April 1st entry, but I propose
we may have found one source of the problems of some
of the past strange situations that mysteriously show
up in K2's in the field. Key jacks that mysteriously
last only a short time, adjustments that seem too
touchy, mechanical adjustments that seem to change,
front-panel buttons that don't work correctly,
rheostat shafts that start to bind, speakers that
seem to be distorted?, speaker coils that now bind,
component lead shorts that came out of nowhere,
........ Doubt it?
Fred, FL Snow Bird on the road north ....
N3CSY Awaiting his K3 delivery ....
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