Installation Manual

1027144–0001 Draft – Revision D.01 10–12 Maintenance RT installation
If you need to replace the CCM, follow these steps:
If you need additional details concerning the instructions below,
see section 3.4 (page 3–24).
Removing the existing CCM
1. Make sure the EMS operator has taken the RT out of
service.
2. Remove power from the IDU chassis power supply.
3. Loosen the thumbscrews at each end of the (existing) CCM.
4. Using an ESD wrist strap connected to a chassis ground
terminal, slide the CCM out of its slot, as shown in
figure 10-6.
CAUTION
Always wear a new or recently tested
electrostatic discharge (ESD) wrist strap
(figure 3-14) when handling circuit
modules. Failure to use a wrist strap may
result in damage to components.
Figure 10-6 Removing the CCM
5. Place the CCM in ESD protective packaging.
Installing the replacement CCM
6. Slide the replacement CCM into the CCM slot (slot 1).
7. Tighten the thumbscrews at each end of the CCM.
8. Apply power to the IDU chassis power supply.
9. Use the CCM LCD to check the CCM status. (For details,
see section 7.7).
10. Notify the EMS operator that the RT is ready to resume
service.
10.5
Replacing the CCM