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.

Touch pad

2.

System Board

9.

SD card slot

3.

USB FDD

10. Modem

4.

HDD

11. LAN

5.

Optical Drive

12.

Sound

6.

Display

13.

Wireless LAN

7.

Keyboard

 

 

The Detailed replacement procedures are given in Chapter 4. Test Program operations are described in Chapter 3.

The following tools are necessary for implementing the Diagnostics procedures:

For tools required for executing the Test Program, refer to the Chapter3. For tools required for disassembling/assembling, refer to the Chapter 4.

1.A set of tools for debugging port test (test cable, test board, RS-232C cross cable, display, D port FD)

2.A PC with a serial port (for displaying debug port test result)

3.Toshiba MS-DOS system FD

4.An external CRT display(for Display trouble shooting)

5.A SD card(for SD card slot trouble shooting)

6.An external microphone(for Sound trouble shooting)

7.Headphone(for Sound trouble shooting)

PORTEGE A200 Maintenance Manual (960 -499)

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Toshiba A200 manual Troubleshooting Troubleshooting Procedures