Troubleshooting - Toshiba PORTÉGÉ A600 Maintenance Manual

2.1 Troubleshooting

2
2.1
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
2. System Board
3. USB FDD
4. Hard Disk Drive
5. Keyboard
6. Touch pad
7. Display
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
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
PORTEGE A600 Maintenance Manual (960-710)
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Troubleshooting
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.
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Toshiba MS-DOS system FD
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RS-232C cross cable
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Test board with debug port test cable
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PC for displaying debug port test result
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8. Optical Disk Drive
9. Modem
10. LAN
11. Wireless LAN
12. Bluetooth
13. Sound
14. 3G
2 Troubleshooting Procedures
15. SD Card Slot
16. Fingerprint Sensor
17. Web camerta
18. Intel Turbo Memory
[CONFIDENTIAL] 2-1