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4 Replacement Procedures
4
4.1 General
This chapter 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 PC Card, then follow the
chart downward removing only those FRUs necessary to reach the one you think is causing the
computer to operate improperly. Refer to the example on the following page.
Battery pack
HDD Keyboard Wireless LAN
ODD Modem Display Assembly
Expansion Memory
Module
Top Cover Display Mask
System Board LCD Module
Fan & Heat Sink
CPU
Direct Play
Button Board
Speakers Touch Pad
FL Inverter
Board
Satellite M40X Series Maintenance Manual [CONFIDENTIAL] 4-1