Extron electronic HSA 200SE - Manual (Page 20)

HSA 200/222 Series • Maintenance and Modifications HSA 200/222 Series • Maintenance and Modifications
Maintenance and Modifications, cont’d
3-8
Replacing the Gas Lift
The gas lift that raises the HSA surface is rated for 100,000
opening and closing cycles. Replace the gas lift as follows:
Ensure that AC power is disconnected before
servicing the HSA unit.
CAUTION When the HSA 200 is upside-down, the latch may
be ineffective. If the latch releases in this position,
the enclosure will tip and could damage the flanged
edges. Keep a free hand on the enclosure to keep it
from tipping.
1 . Remove the surface mount enclosure from the table. See
Removing and Replacing the Enclosure, steps 1 through 4.
Place the enclosure upside-down on a horizontal surface.
To protect the finish, place the enclosure on a soft cloth.
2 . Loosen the three Philips head screws that secure the gas
lift mounting plate in place (figure 3-5).
Unscrew mounting plate
from gas lift.
Loosen (3)
screws.
Figure 3-5 — Removing the gas lift mounting plate
Figure 3-5 shows an HSA 200 model. Removing the gas
lift mounting plate from an HSA 222 is an identical
procedure.
3 . Slide the gas lift mounting plate toward the center of the
enclosure, releasing the mounting plate (figure 3-5).
4 . Turn the gas lift mounting plate counterclockwise until the
plate comes free from the shaft of the gas lift (figure 3-5).
5 . Turn the surface mount enclosure onto its back side and
open the top panel.
With the gas lift removed, the top panel must be
manually lifted.
6. (HSA 200 models only) Remove the four 1/16" hex head
screws on the right and left sides of the front panel
(figure 3-6). Retain the screws. Lift the panel away from
the enclosure.
Figure 3-6 shows an HSA 200 model. Removing the
front panel from an HSA 222 is an identical procedure.
Lift p a nel o u t
of enclo su re.
Remove 2 hex he a d
s crew s on e a ch s ide.
240 - 50/60 Hz 5A
HSA 200
AUDIO
Figure 3-6 — Front panel removal (HSA 200 models)
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