IBM 6400-I15 Maintenance Manual - Page 222
Coax/Twinax Expansion Board, Carefully lift the expansion-CT board out of the card cage cutout and off
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IBM Coax/Twinax Expansion Board Removal ATTENTION To prevent electrostatic damage to electronic components, wear a properly grounded static wrist strap when handling circuit boards, the shuttle frame assembly, and any other electronic component. 1. Prepare the printer for maintenance (page 194). 2. Cabinet Model: Remove the paper guide assembly (page 235). Pedestal Model: Remove the top cover assembly (page 210). 3. Loosen, but do not remove, the two screws securing the coax/twinax I/O plate to the rear of the card cage. Loosen the thumbscrew on the CT board until the screw is released from the standoff on the controller board. (See Figure 52, page 289.) 4. Carefully lift the expansion-CT board out of the card cage cutout and off the expansion connector adapter that attaches the CT to the CMX board. 5. Remove the expansion connector adapter from the CMX controller board by carefully lifting it straight up and out of the controller connector. Installation 1. Reverse steps 2 through 5 of the removal procedure. 2. Return the printer to normal operation (page 159). 222 Replacement Procedures and Illustrated Parts List
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