Lenovo ThinkPad S31 ThinkPad S30, S31 Hardware Maintenance Manual (October 200 - Page 32

FRU Removals and Replacements, FRU Service Procedures, Safety Notice 1 - review

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FRU Removals and Replacements This section contains information about removals and replacements. v Do not damage any parts. Only certified and trained personnel should service the computer. v The arrows in this section show the direction of movement 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. v When other FRUs must be removed before the failing FRU is removed, they are listed at the top of the page. v To replace a FRU, reverse the removal procedure and follow any notes that pertain to replacement. v 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 replacement, 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 rattling 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, disassemble 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. 28 ThinkPad s30, s31

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FRU Removals and Replacements
This section contains information about removals and
replacements.
v
Do not damage any parts. Only certified and trained
personnel should service the computer.
v
The arrows in this section show the direction of
movement 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.
v
When other FRUs must be removed before the failing
FRU is removed, they are listed at the top of the page.
v
To replace a FRU, reverse the removal procedure and
follow any notes that pertain to replacement.
v
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
replacement, 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 rattling 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,
disassemble 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.
28
ThinkPad s30, s31