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. Contact the Extron S3 Sales &
Technical Support Hotline at the nearest phone number listed
on the rear cover of this manual to obtain a replacement gas lift.
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 Phillips 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 panel out
of enclosure.
Remove 2 hex head
screws on each side.
240 - 50/60 Hz 5A
HSA 200
AUDIO

Figure 3-6 — Front panel removal (HSA 200 models)

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