Toshiba PQF46X Manual Do Utilizador

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4.1 General 
 
4 Replacement Procedures 
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. 
4.9
Top Cover
4. 2
HDD
4. 3
ODD Bay Module
4. 20
Touch Pad and
Touch Pad Board
4. 7
Wireless LAN Card
4. 4
Speaker
cover
and
Keyboard
4. 5
4. 8
Display Assembly
4. 13
VGA Card
4. 12
System Board, AC-IN cable and Fan
4. 16
Display Mask
4. 17
FL Inverter Board
4. 19
LCD Modules
4. 14
Cooling Module
4. 15
CPU
Switch Board
4.11
USB and CRT Cable,
Fingerprint Board
and
Bluetooth Card
4. 10
Speakers
4. 6
MDC Module
4. 18
CCD Board and MIC
 
 
System Board
LCD Module
4.9
Top Cover
4. 2
HDD
4. 3
ODD Bay Module
4. 20
Touch Pad and
Touch Pad Board
4. 7
Wireless LAN Card
4. 4
Speaker
cover
and
Keyboard
4. 5
4. 8
Display Assembly
4. 13
VGA Card
4. 12
System Board, AC-IN cable and Fan
4. 16
Display Mask
4. 17
FL Inverter Board
4. 19
LCD Modules
4. 14
Cooling Module
4. 15
CPU
Switch Board
4.11
USB and CRT Cable,
Fingerprint Board
and
Bluetooth Card
4. 10
Speakers
4. 6
MDC Module
4. 18
CCD Board and MIC
 
                                
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.  
Qosmio F40/F45   Maintenance Manual 
4-1