510
Assembly Replacement Procedures
Disk Drive
4. Remove the 2 screws (4) that attached the A4A1 Disk Drive Interconnect
board (5) to the A4 CPU assembly.
5. Unplug and remove the A4A1 Disk Drive Interconnect board from the A4
CPU assembly by carefully sliding the board out towards the disk drive
bay opening (6).
Installation
1. Refer to Figure 14-60. Plug the A4A1 Disk Drive Interconnect board (5)
into the A4 CPU assembly by carefully sliding it into place from the disk
drive bay opening (6).
2. Install the 2 screws (4) that secure the A4A1 Disk Drive Interconnect
board to the A4 CPU assembly and torque them to 9 inch-lbs.
3. Replace the A4 CPU assembly cover (1) and attach it with 19 new
flat-head screws (2) and the 3 pan-head screws (3). Torque all screws to
9 inch-lbs.
4. Re-install the A4 CPU assembly into the instrument. Refer to the CPU
Assembly installation procedure.
5. Re-install the A5 Disk Drive assembly into the instrument. Refer to the
Disk Drive installation procedure.
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