Maintenance
Maintenance Manual 165
Removing a B Board Assembly
Two individuals are recommended for this procedure.
1. Open the front door. See “Opening a Front Door” on page 20.
2. Open the control box. See “Opening a Control Box” on page 31.
3. Directly behind the control box, the location of the B board is found.
Figure 248. B Board Location
There are multiple cables connecting the A board to the B board as well as connections to the
system.
4. Disconnect all wiring, see the following figure, from the B board and move the wires away from
the board to allow for servicing.
Figure 249. Disconnecting Wiring from the B Board
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