Aspect Medical Systems BISPECTRAL INDEX A-2000, Service Manual

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SECTION VII DISASSEMBLING AND REASSEMBLING THE A-2000™
- 7-9 -
7.4
THE FRONT PANEL SWITCH SET
The switch set is not serviceable and should not be removed unless a new one is to be
installed. Removing the switch set will destroy it.
7.4.1
Removing the Switch Set
1. With bezel assembly dismounted from case (see Section 7.2.1), remove EMI strip.
(See Figure 7-5).
2. Insert flat blade screwdriver through the cable access port to push switch set panel
away from bezel. (See Figure 7-5).
3. From front panel, carefully peel rubberized surface of switch set from bezel assembly.
4. Pull flex circuit cable and EMI strip through access port and discard switch set.
5. Using isopropyl alcohol and a cloth, remove any residue remaining on bezel surface.
Allow surface to dry completely before installing new switch set.
7.4.2
Installing the New Switch Set
1. Remove the covering on the back of the new switch set, exposing the adhesive. (See
Figure 7-6).
2. Feed the switch set flex circuit cable and EMI strip through the access port in the
bezel.
3. Position the set carefully along an edge and press down to secure it to the bezel
surface. Press securely over entire surface to assure complete adhesion.
4. Turn bezel over and secure the EMI strip to the metalized interior surface.
5. Reassemble bezel to case as described in Section 7.2.2.
Note:
Failure to properly secure the Electro-magnetic Interference strip may
result in excess Electro-magnetic radiation from the Switch Set.