TX140 S1 Upgrade and Maintenance Manual 243
Expansion cards and backup units
Ê Remove the fan module as described in section "Removing the fan module"
on page 208.
9.2.4.3 Removing the defective TFM
Ê Remove the depending expansion card as described in section "Removing
an expansion card" on page 234.
Ê Disconnect the FBU adapter cable as described in section "Disconnecting
the FBU adapter cable from the TFM" on page 265.
Figure 117: Removing the TFM
Ê Remove the three screws (1).
Ê Remove the TFM (2).
9.2.4.4 Installing the new TFM
Ê Install the new TFM as described in section "Preparing the FBU" on
page 256.
Ê Connect the FBU adapter cable to the TFM as described in section
"Connecting the FBU adapter cable to the TFM" on page 259.
Ê Install the expansion card as described in section "Installing expansion
cards" on page 226.