Specifications

Model 9800 Central Station Receiver Installation/Operation Manual
7-6 151018
7.2.1 Removing the Power Supply/Mother Board
Assembly
Once Silent Knight Technical Support has determined that a problem exists with either the
main power supply or the mother board, use the following procedure to remove the assembly
and return it to Silent Knight for repair.
1. Remove power by disconnecting the AC power cable (see Section 3.9 and 3.10) and
backup battery (if used).
2. Disconnect AC power Cable.
3. Disconnect the backup battery. (See Figure 3-13.)
4. Remove the front plate by unscrewing the front plate retaining screws. (See Figure 3-1 for
locations of front plate retaining screws.)
5. On the back of the receiver remove the four screws that hold the mother board/power sup-
ply assembly to the chassis. (See Figure 7-1 for screw locations.)
Figure 7-1 Mother Board/Power Supply Assembly retaining Screw Locations
6. From the front of the receiver pull the mother board/power supply assembly out.
Screw
Locations