2.1 Troubleshooting 2 Troubleshooting Procedures
TECRA R10 Maintenance Manua l ( 960-708) [CONFIDENTIAL ] 2-1
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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 “FRU” m eans the replaceable unit in the field.)
The FRUs covered are:
1. Power supply 8. Display 15. SD Card Slot
2. System Board 9. Optical Disk Drive 16. Fingerprint Sensor
3. USB FDD 10. LAN 17. Web camerta
4. HDD/SSD 11. Wireless LAN 18. Intel Turbo Memory
5. Keyboard 12. Bluetooth
6. Touch pad 13. Sound
7. Membrane switch 14. 3G
The Test Program operations are described in Chapter 3. Detailed replacem ent procedures are
described in Chapter 4.
NOTE: Before replacing the system board, it is necessary to execute the subtest 03 D MI
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 procedur es)
2. Implements for debugging port check
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Toshiba MS-DOS system FD
RS-232C cross cable
Test board with debug port test cable
PC for displaying debug port test result