Troubleshooting; Procedure - Toshiba Satellite A300 series Maintenance Manual

2 Troubleshooting Procedures
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2.1

Troubleshooting

Chapter 2 describes how to determine which Field Replaceable Unit (FRU) in the computer
is causing the computer to malfunction.
The FRUs covered are:
1. Power supply
2. System Board
3. USB FDD
4. 2.5" HDD
5. Keyboard
The Test Program operations are described in Chapter 3. Detailed replacement procedures are
described in Chapter 4.
NOTE: After replacing the system board or CPU, it is necessary to execute the subtest 01
initial configuration of the 3.3 Setting of the hardware configuration in Chapter
3. Also update with the latest BIOS as described in Appendix G "BIOS Rewrite
Procedures"
After replacing the LCD, update with the latest EC/KBC as described in
Appendix H "EC/KBC Rewrite Procedures" to set the SVP parameter.
The implement for the Diagnostics procedures is referred to Chapter 3. Also, following
implements are necessary:
1. Phillips screwdrivers (For replacement procedures)
2. Implements for debugging port check
•
Toshiba MS-DOS system FD
•
RS-232C cross cable
•
Test board with debug port test cable
•
PC for displaying debug port test result
Satellite A300 Maintenance Manual (960-Q08)
6. Touch pad
7. Display
8. Optical Disk Drive
9. Modem
10. LAN
11. Wireless LAN
12. Sound
13, Finger Print Board
14, Bluetooth
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