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Removal and Installation Procedures
Menu Buttons and Elastomer
1.
Lay the front trim on a flat surface.
2.
Gently remove menu button elastomer. Avoid touching the electrical
contacts.
3.
Remove the menu button(s).
4.
Install menu buttons by placing a menu button
in
each menu button
location.
5.
Place the menu button elastomer over the menu buttons, ensuring that
all standoffs protrude through the elastomer. Avoid touching the electri-
cal
contacts.
Power Button Replacement
1.
With the front trim removed, grasp the power button and pull straight out
from the chassis.
2.
Install the power button by pushing the button onto the power button
shaft
until it locks into place.
Installing the Front Trim
1 .
2.
3.
4.
5 .
TAS 475 and TAS 485 Service Manual
If the menu buttons were removed, insert each button to its hole
in
the
trim ring and
install the menu button elastomer.
Align
the front trim to the front
of
the instrument, without engaging any
of the four
flex locks.
Position the power button
in
line with the front-panel power button
opening.
Slide the front trim onto the instrument, ensuring that all four flex locks
engage.
If installing a new front trim, apply the appropriate front trim label.
6-19
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