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Troubleshooting Procedures
2-6 [CONFIDENTIAL] TECRA A11/S11/P11/Satellite Pro S500 Series Maintenance Manual (960-784)
2.1 Troubleshooting
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
5. Keyboard 12. Bluetooth
6. Touch pad 13. Sound
7. Display 14. Bridge Media slot
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 MS-DOS system FD
RS-232C cross cable
Test board with debug port test cable
PC for displaying debug port test result