IBM BladeCenter T Type 8720 - Manual (Page 82)

Upper flex circuit assembly
Captive fasteners
7. Carefully remove the old upper flex circuit assembly by placing your fingers
under the lower edge of the assembly and pulling the unit out of the chassis.
8. Remove the new upper flex circuit assembly from the packaging.
9. Align the assembly so that the stamped position identifier ″Top″ is facing you.
10. Position the front end of the new upper flex circuit assembly into the assembly
bay in the chassis, making sure the leading edge rests on the lower shelf of
the bay.
CAUTION:
Be careful not to damage the EMI gaskets located on the vertical sides of
the upper flex circuit assembly bay.
11. Carefully push the assembly all the way into the bay.
12. Using a screwdriver, tighten the two captive fasteners on the new upper flex
circuit assembly.
Note: Torque the screws to 8 inch-pounds.
13. Reinstall the I/O switch that you removed.
14. If you have no other replacement procedures to perform at the rear of the
system, re-install the LAN module (see “Installing the LAN module” on page
59) and the KVM module (see “Installing the KVM module” on page 57).
15. Reconnect the power to the system (see “Starting the BladeCenter T unit” on
page 19).
16. For Type 8720 systems, reinstall dc terminal covers.
17. Start up the system (see “Starting the BladeCenter T unit” on page 19).
Lower flex circuit assembly
Complete the following steps to replace the lower flex circuit assembly.
Note:
v Read “Installation guidelines” on page 37.
v Read the safety notices at ″Safety information ″ on page 113.
v Read “Handling static-sensitive devices” on page 40.
1. Shut down the system and remove power from the system (see “Shutting
down the BladeCenter T unit” on page 21).
72 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide