TM 5-6675-318-14
NOTE
A f t e r each adjustment, return to step b and begin again until minimum
vibration is achieved.
b . Place the SELF TEST switch S4-2 in the ON position. Press RESET and
then STEP.
S e t the Y-MUTE S2 to the OFF position.
c.
d . Press and hold the #1 PEN SELECT pushbutton for approximately 5
Release.
seconds.
A d j u s t the X-3rd harmonic potentiometer R38 for minimum vibration
e.
of the pen holder.
f . Press and hold the #2 PEN SELECT pushbutton until the plotter arm
stops.
Release.
Adjust the X-gain potentiometer R22 for minimum vibration of the
g.
pen holder.
h . Press and hold the #3 PEN SELECT pushbutton until the plotter arm
stops . Release.
C e n t e r the X-B offset potentiometer R40 and adjust the X-A R43 for
i.
m i n i m u m vibration of the pen holder.
Adjust the X-B offset potentiometer R40 for minimum vibration of
j.
the pen holder.
k . Return the Y-MUTE switch S2 to the ON position.
Reset S E L F TEST switch to OFF position.
l.
Press RESET.
m.
Lower u p p e r d e c k a s s e m b l y a n d r e i n s t a l l r e a r h o o d .
n.
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