FRU Removals and Replacements
This section contains information on removals and
replacements, as well as locations.
The arrows in the removals and replacements show
the direction of movement to remove a field
replaceable unit (FRU), or to turn a screw to release
the FRU. The arrows are marked in numeric order 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. Go to the removal procedure for each FRU
listed, remove the FRU, and then continue with the
removal of the failing FRU.
To replace a FRU, reverse the removal procedure
and follow any notes that pertain to replacement.
See “Locations” on page 673 for internal cable
connections and arrangement information.
Safety Notice 8: Translation on page 14
Before removing any FRU, power-off the computer,
unplug all power cords from electrical outlets, remove
the battery pack, and then disconnect any
interconnecting cables.
Note: You must use an electrostatic discharge (ESD)
strap to establish personal grounding.
656 IBM Mobile Systems HMM