Keysight Technologies Option 503 Service Manual page 506

Assembly Replacement Procedures
Disk Drive
4. Remove the 2 screws (4) (0515-0372) that attached the A4A1 Disk Drive
5. Unplug and remove the A4A1 Disk Drive Interconnect board from the A4
Installation
1. Refer to
2. Install the 2 screws (4) (0515-0372) that secure the A4A1 Disk Drive
3. Replace the A4 CPU assembly cover (1) and attach it with the 19
4. Re-install the A4 CPU assembly into the instrument. Refer to the
5. Re-install the A5 Disk Drive assembly into the instrument. Refer to the
506
Interconnect board (5) to the A4 CPU assembly.
CPU assembly by carefully sliding the board out towards the disk drive
bay opening (6).
Figure 16-83. 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).
Interconnect board to the A4 CPU assembly and torque them to
9 inch-pounds.
flat-head screws (2) (0515-1227) and the 3 pan-head screws (3)
(0515-0372). Torque all screws to 9 inch-pounds.
Assembly installation procedure.
Disk Drive installation procedure.
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CPU