Removing And Replacing An Fru - Lenovo IdeaPad S100 Hardware Maintenance Manual

Removing and replacing an FRU

This section presents exploded figures with instructions indicating how to
remove and replace an FRU. Make sure to observe the following general rules:
1. Do not attempt to service any computer unless you have been trained and
2. Before replacing any FRU, review the "FRU replacement notices" on
3. Start by removing any FRUs that must be removed to access the failing
4. Follow the correct sequence of steps to remove the FRU, as given in the
5. When turning a screw to replace an FRU, turn it in the direction indicated by
6. When removing an FRU, move it in the direction indicated by the arrow in
7. To put the new FRU in place carry out the removal procedure in reverse and
8. When replacing an FRU, use the correct screw as shown in the procedures.
Attention 1: After replacing an FRU, do not turn on the computer until you have
made sure that all screws, springs, and other small parts are in place and none
are loose inside the computer. Verify this by shaking the computer gently and
listening for rattling sounds. Metallic parts or metal flakes can cause electrical
short circuits.
Attention 2: The system board is sensitive to, and can be damaged by,
electrostatic discharge. Before touching it, establish personal grounding by
touching a ground point with one hand or using an electrostatic discharge (ESD)
strap (P/N 6405959) to remove the risk of electrostatic shock.
30
Lenovo IdeaPad S100 Hardware Maintenance Manual
certified. An untrained person may damage parts.
page 29.
FRU. Any such FRUs are listed at the top of the page. Remove them in the
order in which they are listed.
numbers in square boxes by the illustrations.
the arrow in the illustration.
the figure.
pay attention to any notes pertaining to replacing the parts. For information
about connecting and arranging internal cables, see "Locations" on page 59.
DANGER
Before removing any FRU, turn off the computer, unplug all power cords from
electrical outlets, remove the battery pack, and then disconnect any of the
interconnecting cables.