Instruction manual

Appendix C – Replacing I/O Boards
69
Optima SD Instruction Manual
FIG. 41 Pull CPU/board unit straight out & remove CPU
FIG. 42 Remove screw & side slide-key
3a: Carefully pull the CPU/board unit straight out of the enclosure frame.
3b: Pull up on the CPU board, wiggling slightly to loosen it from the board unit. Tip the board unit
to the left for Step 4.
Avoid pins when pulling out and when pulling up
CPU
Board unit
3
3a
3b
Side slide-key
4a
4b
4
4a: Remove the side screw.
4b: Remove the side slide-key. Stand the board unit on the slide-key end for Steps 5 and 6.