Toshiba TOSHIBA NB100 manual General Replacement Procedures, System Board

4.1 General 4 Replacement Procedures

4.1General

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	4. 3	4. 4
Keyboard cover and	Wireless LAN Card	Display Assembly
Keyboard

4.5

Top Cover

4. 6	4. 7	4. 11
SSD/HDD and Fan	System Board,	Touch pad board
	DC-IN,RJ-45 Cable
	and Blue-Tooth Card

4. 8

Display Mask

4.9

LCD Modules

4.10

CCD Board and Speakers

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.

4. 2	4. 3	4. 4
Keyboard cover and	Wireless LAN Card	Display Assembly
Keyboard

4.5

Top Cover

4. 6	4. 7	4. 11
SSD/HDD and Fan	System Board,	Touch pad board
	DC-IN,RJ-45 Cable
	and Blue-Tooth Card

4. 8

Display Mask

4.9

LCD Modules

4.10

CCD Board and Speakers

TOSHIBA NB100 Maintenance Manual 4-1