Filter
Top Products
FRU Removals and Replacements
This section contains information about removals and
replacements.
Do not damage any parts. Only certified and trained
personnel should service the computer.
The arrows in this section show the direction of move-
ment to remove a FRU, or to turn a screw to release
the FRU. The arrows are marked in numeric order, in
square callouts, to show the correct sequence of
removal.
When other FRUs must be removed before the failing
FRU is removed, they are listed at the top of the
page.
To replace a FRU, reverse the removal procedure
and follow any notes that pertain to replacement.
When replacing a FRU, use the correct screw size, as
shown in the procedures.
Safety Notice 1:
Before the computer is powered on after FRU replace-
ment, make sure all screws, springs, or other small parts,
are in place and are not left loose inside the computer.
Verify this by shaking the computer and listening for rat-
tling sounds. Metallic parts or metal flakes can cause an
electrical short circuit.
Safety Notice 4:
The battery can cause a fire, explosion, or severe burn. Do
not recharge it, remove its polarized connector, disas-
semble it, heat it above 100°C (212 °F), incinerate it, or
expose its cell contents to water. Dispose of the battery as
required by local ordinances or regulations. Use only the
battery in the appropriate parts listing. Use of an incorrect
battery can result in ignition or explosion of the battery.
Safety Notice 8:
Before removing any FRU, power-off the computer, unplug
all power cords from electrical outlets, remove the battery
ASM, and then disconnect any interconnecting cables.
An electrostatic discharge (ESD) strap (P/N 6405959) must
be used to establish personal grounding.
FRU Service Procedures
Review the following procedures before replacing any
FRU.
24 ThinkPad 240