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71
* Applies to Sprint 2 Only.
SYMPTOM
Display erratic;
speed and
elevation controls
work.
Does the display
function
normally, except for
an
YES Re - calibrate elevation
potentiometer
incorrect (or
unchanging)
according to the
instructions in appendix
2.
elevation
readout?
If the potentiometer cannot be re
- calibrated,
replace the pot.
(#71013)
NO
Does the
selectable
YES Check display button, located on
upper display,
display
automatically scroll
for operation. Make sure it has
unobstructed
through display
functions?
movement.
NO
If the display is
showing
"Garbage" or is
otherwise
operating
incorrectly,
replace the display
board