
2 Troubleshooting Procedures
PORTEGE R400 Maintenance Manual (960-623) [CONFIDENTIAL]
2-1
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
8. Bluetooth
2. System Board
9. Wireless LAN
3. USB Floppy Disk Drive
10. 3G
4. 1.8-inch Hard Disk Drive
11. Tablet pen
5. Keyboard/Touch pad
12. Sound components
6. Display
13. Fingerprint sensor
7. LAN
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
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 DOS system FD
RS-232C cross cable
Test board with debug port test cable
PC for displaying debug port test result
Summary of Contents for Portege R400 Series
Page 10: ...x CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 12: ...1 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 35: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 36: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 106: ...2 Troubleshooting Procedures 2 68 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 107: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 108: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 3 ...
Page 112: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 214: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 215: ...4 Replacement Procedures 4 ii CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 4 ...
Page 219: ...4 Replacement Procedures 4 vi CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Page 294: ... CONFIDENTIAL Appendices ...
Page 295: ...Appendices App ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 303: ...Appendices App x CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 321: ...Appendices Appendix B Board Layout B 12 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 359: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 369: ...Appendices Appendix I Reliability 2 CONFIDENTIAL PORTEGE R4000 Maintenance Manual 960 623 ...