3745 FRU Exchange Procedure
Installation Procedure
1. Refer to Figure 4-123 on page 4-90 and set
the same board address as you noted during
the board removal.
2. Refer to Figure 4-124 on page 4-90.
3. Mount the new LIC board .5/ and the ground
bracket .6/ in place and secure them with the
four screws .4/.
4. Refer to Figure 4-123 on page 4-90.
5. Reconnect the flat power cables .3/.
6. Refer to Figure 4-124 on page 4-90.
7. Mount the ground strap onto the LIC board to
the frame with the screw and a washer .7/.
8. Attention: Use the ESD kit and procedures.
Install the LICs and SMUX into their proper
positions and fasten the thumb screws holding
them to the board. Finger strength is enough.
Do not use tools.
9. Install the LIC cables on the LICs.
10. Refer to Figure 4-122 on page 4-89.
11. Install the serial link cable (if any) on the
SMUX.
12. Install the flat cable (if any) between the two
SMUXs.
13. Refer to Figure 4-120 on page 4-88.
14. Install the SMUX cover with two screws .1/.
15. Close the rear door.
16. Switch CB1 ON.
17. Close the front door.
18. Press Power On on the control panel.
19. Run all diagnostics.
20. Go to “Action to Take After a Diagnostic Run
or an FRU Exchange” on page 4-99.
Chapter 4. 3745 FRU Exchange 4-91