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Chapter 2 Troubleshooting Procedures
Satellite L600D/L640D/L645D, Satellite Pro L600D/Pro L640D/Pro L645D Maintenance Manual (960-Q08)
2
2.1 Troubleshooting
Chapter 2 describes how to determine which Field Replaceable Unit (FRU) in the computer
is causing the computer to malfunction.
The FRUs covered are:
1. Power supply 7. LAN 13. 3G
2. System Board 8. Wireless LAN 14. Camera
3. SATA HDD/SSD 9. Sound 15. Microphone
4. Keyboard 10. Bluetooth 16. Ext CRT
5. Touch pad 11. HDMI 17. USB Board
6. Display 12. Memory 18 LED
19. Optical Disk Drive 20. Modem 21. 3 in 1 Card Reader
The Test Program operations are described in Chapter 3. Detailed replacement procedures are
described in Chapter 4.
NOTE: After replacing the system board or CPU, it is necessary to execute the subtest 01
initial configuration of the 3.3 setting of the hardware configuration in Chapter
3.
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 Free-DOS system FD