Programming instructions

137
Upgrades and FRUs
Analog Main Board (CX/CXi Controller)
To replace the analog main board (AMB) in a CX or CXi:
1. Power down the controller (see page 99).
2. Remove the cover (page 101).
3. Remove the screw that secures the faceplate to the back panel.
4. Remove the Analog Option Board, if one has been installed, by
reversing the installation procedure (page 114).
5. Disconnect the power supply cable on the AMB.
6. Remove the ribbon cable on the AMB (not from the main board) by
flipping up the clip on the connectors at each end of the cable.
7. Remove the Analog Main Board.
8. Insert the new Analog Main Board.
9. Replace the ribbon cable by sliding it under the guides on the side and
up into the connector. Flip the clip down to secure the cable.
10. Replace the power supply cable.
11. Replace the Analog Option Board (if previously removed).
12. Replace the top cover and power up the controller (see page 22)..
Figure 24: CX/CXi, Insert the Analog Main Board