General - Toshiba Satellite L300D Maintenance Manual

4.1 General

4 1
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 determine those FRUs, go to the appropriate sections
according to the section numbers shown in the boxes. Then start removal and replacement.
4. 2
HDD
4. 3
ODD Bay Module
4.7
Top Cover
4. 16
Speakers
4.17
Touch Pad and
Touch Pad Board
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.
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4. 5
4. 4
Keyboard
MDC Module
4. 8
Display Assembly
4. 9
4. 18
System Board, AC-IN cable and ODD Extended Board
USB cable, CRT
cable, Power But on t
Board, AC-IN cable
4. 10
and RJ11 cable
Cooling Module
and Fan
4. 17
4. 6
Wireless LAN Card
4. 11
CPU
4. 2 4. 4 4. 5
HDD
Keyboard
MDC Module
4. 3 4. 8
Display Assembly
ODD Bay Module
4.7
Top Cover
4. 9
4. 16
4. 18
Speakers System Board, AC-IN cable and ODD Extended Board
USB cable, CRT
cable, Power But on t
Board, AC-IN cable
4. 10
Touch Pad and and RJ11 cable
Cooling Module
Touch Pad Board
and Fan
4 Replacement Procedures
4. 12
Display Mask
4. 13
FL Inverter Board
4. 14
CCD Board and MIC
4. 15
LCD Modules
4. 6
4. 12
Wireless LAN Card
Display Mask
4. 13
FL Inverter Board
4. 14
CCD Board and MIC
4. 15
LCD Modules
4. 11
CPU
System Board
LCD Module
4-1