General - Toshiba M645-S4080 Maintenance Manual

4.1 General

4.1 General
This chapter explains how to disassemble the laptop 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.
4.18 Membrane Power
4.19 Display Assembly
How to use the chart (two examples):
• For removing the Motherboard:
First, remove parts from 4.2 Battery
to 4.13 Bluetooth Module. Then you
are able to remove 4.14
Motherboard.
• For removing the Camera Module:
First, remove 4.20 LCD Bezel and
4.21 LCD Module. Then you are able
to remove 4.22 Camera Module.
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4.2 Battery 4.3 Memory
4.5 WLAN Card 4.6 WLAN Card
4.8 Keyboard 4.9 Logic Upper Assembly
4.13 Bluetooth
4.14 Motherboard
Module
4.17 ODD (Slot-load)
Board
4.4 HDD
4.7 ODD (Tray-load)
4.2 Battery 4.3 Memory
4.5 WLAN Card
4.5 WLAN Card 4.7 ODD (Tray-load)
4.8 Keyboard 4.9 Logic Upper Assembly
4.13 Bluetooth
4.14 Motherboard
Module
4.17 ODD (Slot-load)
4.18 Membrane Power
Board
4.19 Display Assembly
4 Replacement Procedures
4.10 Speakers
4.11 Logo Board
4.12 Touch Pad
Assembly
4.15 Thermal Fan (for
UMA Module)
4.16 CPU and
Thermal Module
4.20 LCD Bezel
4.21 LCD Module
4.22 Camera Module
4.23 Antennas for WLAN
4.4 HDD
4.10 Speakers
4.11 Logo Board
4.12 Touch Pad
Assembly
4.15 Thermal Fan (for
UMA Module)
4.16 CPU and
Thermal Module
4.20 LCD Bezel
4.21 LCD Module
4.22 Camera Module
4.23 Antennas for WLAN
4-1