2.1 Troubleshooting

2 Troubleshooting

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

7.

Touch pad

2.

System board

8.

Modem

3.

3.5" USB FDD

9.

LAN

4.

1.8" HDD

10.

Sound

5.

Keyboard

11.

SD card slot

6.

Display

12.

Wireless LAN

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:

1.Diagnostics Disk (Test program for maintenance)

2.Phillips screwdrivers

NOTE: Be sure to use the PH point size “0” screwdriver complying with the ISO/DIS 8764-1:1996.

3.Toshiba MS-DOS system FD

4.Work disk (for FDD testing)

5.Cleaning disk kit (for FDD head cleaning)

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

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

8.Wraparound connector for PC card

9.Tester

10.External CRT

11.External USB Keyboard

12.External USB mouse

13.Headphone

14.Microphone

15.LAN wraparound connector

PORTEGE R100 Maintenance Manual (960-440)

2-1

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Toshiba R100 manual Troubleshooting