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4 Replacement Procedures
4.1 General
This section explains how to disassemble the computer and replace Field Replaceable
Units (FRUs). It may not be necessary to remove all the FRUs in order to replace one.
The chart below is a guide to which FRUs need to be removed in order to remove others.
Always start by removing the battery pack, next, optional items such as the optional
Express card and optional Media card, then follow the line on the chart to determine
which FRU you must remove first in order to repair the one you think is causing the
computer to operate improperly. Refer to the example at the bottom of the page.
How to see the
chart:
This chart shows
which unit(s) you
need to remove
in advance when
you replace one
unit.
Example:
When you want
to replace the
Main PCB, you
need to remove
units in the
hatched boxes
above the box in
which the Main
4-6 [CONFIDENTIAL] SatelliteM500/M500D Maintenance Manual