Troubleshooting Procedures
2.1Troubleshooting
Chapter 2 describes how to determine which Field Replaceable Unit (FRU) in the computer is causing the computer to malfunction. (The “FRU” means the replaceable unit in the field.) The FRUs covered are:
1. | Power supply | 8. | Optical Disk Drive | 15. | PCI ExpressCard slot |
2. | System Board | 9. | Modem | 16. | Fingerprint Sensor |
3. | USB FDD | 10. | LAN | 17. | Web camerta |
4. | 2.5” HDD | 11. | Wireless LAN |
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5. | Keyboard | 12. | Bluetooth |
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6. | Touch pad | 13. | Sound |
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7. | Display | 14. | Bridge Media slot |
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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 3.4 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 3.4 Setting of the hardware configuration in Chapter 3. Also update with the latest EC/KBC as described in Appendix H “EC/KBC 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
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∙Test board with debug port test cable
∙PC for displaying debug port test result
