Appendix C: Field-Replaceable Units
7750 SR-a4 and SR-a8 Installation Guide 197
Step 1. If the system has a single CPM-a and you have a spare CPM-a with the appropriate
CF card, install the spare CPM-a in the empty CPM-a slot; see Replacing a CPM-a
on page 194.
Step 2. Remove the CPM-a that has the compact flash that you need to replace and place it
on a flat antistatic work surface; see Removing a CPM-a on page 193.
Step 3. Remove the new CF card from the packaging and place it on a flat anti-static work
surface.
Step 4. Remove the CF card that is being replaced by doing the following; see Figure 72
for its location on the CPM-a.
i. Lift the card retainer bail that covers the CF card slot (Key 1 on Figure 72).
ii. Use a pair of pliers or tweezers to pull the CF card out of the slot (Key 2 on
Figure 72). (The card is intentionally difficult to remove.)
iii. Place the extracted CF card on a flat antistatic work surface.
Step 5. Insert the new CF card into the slot until it is fully seated.
Step 6. Close the card retainer bail to hold the CF card in the slot.
Step 7. If you installed a spare CPM-a in Step 1, remove it; see Removing a CPM-a on page
193.
Step 8. Reinstall the CPM-a that has the new CF card; see Replacing a CPM-a on page 194.
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