4.1 General

4 Replacement Procedures

Before You Begin

Take note of the following points before starting work. Always remove the AC adapter and battery pack before commencing any of the procedures. The procedure for removing the battery pack is described in section “4.2 Battery Pack”.

1.Do not disassemble the computer unless it is operating abnormally.

2.Use only the correct and approved tools.

3.Make sure the working environment is free from the following elements whether you are using or storing the computer.

Dust and contaminates

Static electricity

Extreme heat, cold and humidity

4.Perform the diagnostic tests described in Chapter 2 to determine which FRU is the cause of the fault.

5.Do not perform any unnecessary work. Always work in accordance with the disassembly and reassembly procedures in this manual.

6.After removing parts from the computer, place them in a safe place away from the computer so they will not be damaged and will not interfere with your work.

7.You will remove and replace many screws when you disassemble the computer. When you remove screws, make sure they are placed in a safe place and identified with the correct parts.

8.When assembling the computer, make sure that you use the correct screws to secure the various pieces in place. Screw sizes are listed in their corresponding figures.

9.The computer contains many sharp edges and corners, so be careful not to injure yourself.

10.After you have replaced an FRU, make sure the computer is functioning properly by performing the appropriate test on the FRU you have fixed or replaced.

PORTÉGÉ R500 Maintenance Manual (960-634)

[CONFIDENTIAL]

4-3

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Toshiba r500 manual Before You Begin