2.1 Troubleshooting  2 Troubleshooting Procedures  
Satellite Pro S300, TECRA A10/S10/P10  Maintenance Manual (960-684) [CONFIDENTIAL]  2-1 
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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 “FRU” means the replaceable unit in the field.) 
The FRUs covered are: 
 
1.  Power supply    8.  Optical Disk Drive  15.  PCI ExpressCard slot 
2.  System Board    9.  Modem  16.  Fingerprint Sensor 
3.  USB FDD  10.  LAN  17.  Web camerta 
4.  2.5” HDD  11.  Wireless LAN  18.  Intel Turbo Memory 
5.  Keyboard  12.  Bluetooth   
6.  Touch pad  13.  Sound   
  7.  Display  14.  Bridge Media slot   
 
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 3.4 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. 
 
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 
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Toshiba MS-DOS system FD 
RS-232C cross cable 
Test board with debug port test cable 
PC for displaying debug port test result