Toshiba Libretto 50CT, User Manual

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4 Replacement Procedures 4.1 Overview
Libretto 50CT/70CT Maintenance Manual 4-3
Before You Begin
Look over the procedures in this section before you begin disassembling the computer.
Familiarize yourself with the disassembly and reassembly steps. Begin each procedure by
removing the AC adapter and the battery pack as instructed in Section 4.2.
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:
q
Dust and contaminates
q
Static electricity
q
Extreme heat, cold and humidity
4. Make sure the FRU you are replacing is causing the abnormal operation by performing
the necessary diagnostics tests described in this manual.
5. Do not perform any operations that are not necessary and use only the described
procedures for removing and installing FRUs in the computer.
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 put in a safe place and are identified with the
correct parts.
8. When assembling the computer, be sure you use the correct screws to secure the
various pieces in place. Screw sizes are listed in the corresponding figures.
9. The computer contains many sharp edges and corners, be careful not to injure
yourself.
10. After you have replaced an FRU, be sure the computer is functioning properly by
performing the appropriate test on the FRU you have fixed or replaced.