TM 5-6675-323-14
NOTE
A f t e r each adjustment, return to step b and begin again until minimum
vibration is achieved.
P l a c e the SELF TEST switch S4-2 in the ON position. Press RESET and
b.
then STEP.
c.
S e t the Y-MUTE S2 to the OFF position.
d.
P r e s s and hold the #1 PEN SELECT pushbutton for approximately 5
seconds.
Release.
A d j u s t the X-3rd harmonic potentiometer R38 for minimum vibration
e.
of the pen holder.
P r e s s and hold the #2 PEN SELECT pushbutton until the plotter arm
f.
s t o p s . Release.
Adjust the X-gain potentiometer R22 for minimum vibration of the
g.
pen holder.
P r e s s and hold the #3 PEN SELECT pushbutton until the plotter arm
h.
s t o p s . 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
the pen holder.
R e t u r n the Y-MUTE switch S2 to the ON position.
k.
R e s e t SELF TEST switch to OFF position.
l.
Press RESET.
m.
Lower upper deck assembly and reinstall rear hood.
n.
3-263
