Maintenance Manual

Chapter 2 Troubleshooting Procedures

Satellite L600/L640/L645, Satellite Pro L600/Pro L640/Pro L645 Maintenance Manual (960-Q08)

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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 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

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