IBM Laptop MT 2632 User Manual download pdf (Page 54)

Removing and replacing a FRU

This section presents information and drawings for use in

removing and replacing a FRU. Be sure to observe the

following general rules:

1. Do not try to service the computer unless you have

been trained and certified. An untrained person runs

the risk of damaging parts.

2. Before replacing any FRU, review “FRU replacement

notices” on page 47.

3. Begin by removing any FRUs that have to be removed

before the failing FRU. Any such FRUs are listed at the

top of the page. Remove them in the order in which

they are listed.

4. Follow the correct sequence in the steps for removing

the FRU, as indicated in the drawings by the numbers

in square callouts.

5. When turning a screw to replace a FRU, turn it in the

direction indicated by the arrow in the drawing.

6. When removing the FRU, move it in the direction

indicated by the arrow in the drawing.

7. To put the new FRU in place, reverse the removal

procedure and follow any notes that pertain to

replacement. For information about connecting and

arranging internal cables, see “Locations” on page 87.

8. When replacing a FRU, use the correct screw as

shown in the procedures.

CAUTION:

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.

CAUTION:

Do not disassemble the battery pack, throw it into fire

or water, or short-circuit it. Dispose of the battery pack

as required by local ordinances or regulations.

Attention: Before the computer is powered on after FRU

replacement, make sure all screws, springs, and other

small parts are in place and are not 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: The system board is sensitive to, and can be

damaged by, electrostatic discharge. Establish personal

grounding by touching a ground point with one hand before

touching these units.

You must use an electrostatic discharge (ESD) strap (P/N

6405959) to establish personal grounding.

Removing and replacing a FRU

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IBM Laptop MT 2632 User Manual Page 54

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