Troubleshooting - Toshiba PORTEGE R830 Maintenance Manual

Troubleshooting Procedures
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
2. System Board
3. USB FDD
4. HDD/SSD
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
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
 Toshiba MS-DOS system FD
 RS-232C cross cable
 Test board with debug port test cable
 PC for displaying debug port test result
2-6
PORTEGE R830 Satellite R830 Series Maintenance Manual (960-880) [CONFIDENTIAL]
8. Optical Disk Drive
9. LAN
10. Wireless LAN
11. Bluetooth
12. Sound
13. SD Card slot
14. PCI ExpressCard slot
15. Fingerprint Sensor
16. Web camerta
17. 3G
18. HDMI