TX1320 M4 Upgrade and Maintenance Manual 205
Expansion cards and backup units
9.5.3 Replacing an FBU
V CAUTION!
● Dispose of used battery properly. Keep away from children.
● Do not throw flash backup units into the trash can. Batteries must be
disposed of in accordance with local regulations concerning special
waste.
9.5.3.1 Preliminary steps
Ê "Locating the defective server" on page 47
Ê "Shutting down the server" on page 49
Ê "Disconnecting the power cord" on page 50
Ê "Getting access to the component" on page 51
Ê "Disconnecting the front USB connector" on page 268
9.5.3.2 Removing the defective FBU
Ê Remove the FBU, see section "Removing the FBU from the tray" on
page 202.
Ê Disconnect the cable end on the FBU from the FBU adapter cable, see
section "Disconnecting the FBU cable from the FBU" on page 203.
9.5.3.3 Installing the new FBU
Ê Install the FBU in the holder and connect the FBU adapter cable to the FBU,
see section "Preparing the FBU" on page 198.
Ê Remove the FBU tray, see section "Removing the FBU tray" on page 199.
Ê Install the FBU, see section "Installing the FBU into the FBU tray" on
page 200.
Upgrade and Repair Unit
(URU)
Hardware: 10 minutes
Tools: tool-less