Toshiba Satellite A300 Maintenance Manual - Page 77
Troubleshooting, Troubleshooting Procedures - bios update
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2 Troubleshooting Procedures 2 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 6. Touch pad 7. Display 8. Optical Disk Drive 9. Modem 10. LAN 11. Wireless LAN 12. Sound 13, Finger Print Board 14, Bluetooth 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) 1