General, Inverter Board | Toshiba PROL450D guide

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4 Replacement Procedures

4.1General

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

4.5WLAN Card

4.8Keyboard Cover and Keyboard

4.3HDD

4.6Modem Card (BTO)

4.9Logic Upper Assembly

4.4Memory

4.7ODD

4.10 Power Board

4.11 Speakers

4.12 Touch Pad

Bracket

4.13 Thermal

4.14 Motherboard

Fan

4.16 Display Assembly

4.15CPU and

Thermal Module

4.17LCD Bezel Assembly

4.18LCD Module and Inverter Board

4.19Camera

4.20 Hinge Saddle

4.21 USB Board

4.22 RJ11 Jack

How to use the chart (two examples):

∙ For removing the Motheroard:

First, remove parts from 4.8

4.2 Battery	4.3 HDD	4.4 Memory


4.5 WLAN Card	4.6 Modem Card	4.7 ODD
4.5 WLAN Card	(BTO)	4.7 ODD
	(BTO)

4.10 Power Board

4.11 Speakers

Keyboard Cover & Keyboard, 4.9

Logic Upper Assembly, 4.13

Thermal Fan.

∙ For removing the LCD Module:

First, remove LCD Bezel Assembly,

then remove the LCD module and

the Inverter Board.

4.8 Keyboard Cover		4.9 Logic Upper
and Keyboard			Assembly


4.13 Thermal	4.14 Motherboard
Fan



4.16 Display Assembly
4.16 Display Assembly