General - Toshiba Satellite U900 Maintenance Manual

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Replacement Procedures
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.
4.2 Battery Pack
4.7 Logic Upper Assembly
4.10 Fan 4.11 Motherboard
4.13 Speaker
How to use the chart
(one example):
For removing the
LCD Module:
First, remove 4.13
Display Assembly,
4.14 LCD Bezel,
then remove 4.15 the
LCD Module.
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4.4 HDD
4.3 Memory
4.8 LED Board
4.14 Display Assembly
4.2 Battery Pack
4.7 Logic Upper Assembly
4.10 Fan 4.11 Motherboard
4.13 Speaker 4.14 Display Assembly
4.5 SSD Card
4.9 TPC
4.12 Thermal Module
4.4 HDD
4.3 Memory
4.8 LED Board
4.12 Thermal Module
4.6 WLAN Card
4.15 LCD Bezel
4.16 LCD Module
4.17 Camera Module
4.5 SSD Card
4.6 WLAN Card
4.9 TPC
4.15 LCD Bezel
4.16 LCD Module
4.17 Camera Module
4
4-1