446 Upgrade and Maintenance Manual TX140 S1
System board and components
14.3.2.3 Removing the TPM board
Ê Remove the system board as described in section "Removing the system
board" on page 455.
Ê Lay the system board on a soft, antistatic surface with its component side
facing down.
Figure 287: Removing the TPM screw
Ê Locate the slotted lower end of the TPM screw (1).
Ê Carefully loosen the TPM screw using a thin slotted screw driver (e.g.
watchmaker's screw driver) or the dedicated TPM screw driver (Japanese
market) (2).
V CAUTION!
Ensure to turn the screw clockwise in order to remove it!
Slowly and carefully increase the pressure on the screw until it begins
to turn. The effort when loosing the screw should be as low as
possible.
Otherwise the thin metal bar may break, rendering it impossible to
loosen the screw.
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