2.1 Troubleshooting 2 Troubleshooting Procedures
PORTÉGÉ M500 Maintenance Manual (960-559) [CONFIDENTIAL] 2-1
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 6. Display 11. Wireless LAN
2. System Board 7. Optical Drive 12. Sound components
3. USB Floppy Disk Drive 8. Modem 13. Bridge media Slot
4. Hard Disk Drive 9. LAN 14. Fingerprint sensor
5. Keyboard/Touch pad 10. Bluetooth
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 D MI
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 MS-DOS system FD
RS-232C cross cable
Test board with debug port test cable
PC for displaying debug port test result