IBM 3112 Service Manual page 99

4. Open the top cover. Then open the right side cover.
5. Remove the Host Attachment Card grounding screw.
6. With host attachment card, but no IPDS card, unplug the
connector. With IPDS, pop the cards off the plastic standoffs as
you unplug the connector. (You will need to pinch the standoffs.)
7. With IPDS, separate the Host Attachment Card and the IPDS
Card (Remove the 2 screws from the host attachment card.)
Each card is a separate FRU.
8. Transfer the IPDS memory to the new IPDS card.
Repair Information
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