Toshiba Tecra A8 Maintenance Manual - Page 49
Troubleshooting - recovery
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2.1 Troubleshooting 2 Troubleshooting Procedures 2 2.1 Troubleshooting Chapter 2 describes how to determine if a 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 Floppy Disk Drive 4. Hard Disk Drive 5. Keyboard/Touch pad 6. Display 7. Optical Drive 8. Modem 9. LAN 10. Bluetooth 11. Wireless LAN 12. Sound components 13. SD card Slot 14. Fingerprint sensor The Test Program operations are described in Chapter 3. Detailed replacement procedures are described in Chapter 4. NOTE: Before replacing the system board, it is necessary to execute the subtest 03 DMI Information save of the 3.3 Setting of the hardware configuration in Chapter 3. After replacing the system board, it is necessary to execute the subtest 04 DMI Information recovery and subtest 08 System configuration display of the 3.3 Setting of the hardware configuration in Chapter 3. Also update with the latest EC/KBC as described in Appendix H "EC/KBC Rewrite Procedures". The implement for the Diagnostics procedures is referred to Chapter 3. Also, following implements are necessary: 1. Phillips screwdrivers (For replacement procedures, Refer to Chapter 4) 2. Implements for debugging port check • Toshiba DOS system FD • RS-232C cross cable • Test board with debug port test cable • PC for displaying debug port test result TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573) [CONFIDENTIAL] 2-1