Programming instructions

136
3300 ICP Technician’s Handbook
Analog Main Board (MXe Controller)
To replace the analog main board (AMB) in an MXe:
1. Power down the controller (see page 99).
2. Disconnect the power supply cable.
3. Remove the top cover (see page 101).
4. Disconnect the power cable and remove the ribbon cable on the AMB
by flipping up the clip on the connectors at each end of the cable.
5. Remove the Analog Main Board.
6. Place the new AMB on the power supply carrier and slide the port
interfaces through the slots at the rear of the controller.
7. Secure the AMB to the carrier with the captive screw provided.
8. Attach the ribbon cable to the controller by lifting up the clip and
inserting the cable vertically into the connector. Push the clip down to
secure the cable.
9. Attach the power supply cable.
10. Replace the top cover and power up the controller (see page 22).
Figure 23: Screws and Standoffs on the Analog Main Board