2.1 Troubleshooting

2 Troubleshooting Procedures

2.1Troubleshooting

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.

FM tuner

2.

System Board

9.

Modem

16.

Bridge Media slot

3.

USB FDD

10.

LAN

17.

PCI ExpressCard slot

4.

2.5” HDD

11.

Wireless LAN

18.

Fingerprint Sensor

5.

Keyboard

12.

Bluetooth

19.

Web camerta

6.

Touch pad

13.

Sound

20.

Intel Turbo Memory

7.

Display

14.

PCI-E-Mini card slot3

 

 

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

QOSMIO G50 Maintenance Manual (960-683)

[CONFIDENTIAL]

2-1

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Toshiba G50 manual Troubleshooting Troubleshooting Procedures