General - Toshiba Satellite M40 Maintenance Manual

4.1 General

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4.1 General
This chapter explains how to disassemble the computer and replace Field Replaceable Units
(FRUs). Some replacement procedures may not require you to remove all the surrounding FRUs to
replace only one FRU. The chart below shows the FRUs in the order in which they should be
removed in a top-down manner, irrespective of their physical locations. The FRUs shown in the top
area of the chart should normally be removed before removing the FRUs shown in the bottom area.
To replace the FRUs, first identify the suspect FRU for the system failure. Next, according to this
chart, determine the FRUs that need to be removed before removing the suspect FRU. After you
determined those FRUs, go to the appropriate sections according to the section numbers shown in
the boxes. Then start removal and replacement
How to use the chart (two examples):
For removing the System Board
First, remove the top cover with the
display assembly. Then, remove the
HDD, selectable bay module, Bluetooth
card, keyboard, and wireless LAN
card, all of which are shown above the
top cover with the display assembly.
For removing the LCD Module
First, remove the display mask and FL
inverter board, both of which are shown
above the LCD module.
Satellite M40/M45, TECRA A4, dynabook Vx/4 Maintenance Manual
4 Replacement Procedures
4-1