2 Troubleshooting Procedures

2.1Troubleshooting Introduction

Chapter 2 describes how to determine if a Field Replaceable Unit (FRU) in the computer is causing the computer to malfunction. The FRUs covered are:

1.

Display

5.

Speaker

9. Camera

13.

HDMI

2.

Keyboard

6.

Optical drive

10.

3in1 card

14.

MIC

3.

External USB

 

 

 

 

 

 

ports

7.

Modem

11.

HDD

15.

Thermal

4.

Touch Pad

8.

Wireless LAN

12. CRT port

16.

LAN

The Diagnostics Disk operations are described in Chapter 3. Detailed replacement procedures are given in Chapter 4.

The following tools are necessary for implementing the troubleshooting procedures:

1.Diagnostics Disk (Repair and Sound Repair)

2.USB memory disk

3.Phillips screwdriver (2 mm)

4.6mm nut driver (for the helix screw nuts on the rear ports for CPU door)

5.2DD or 2HD formatted work disk for floppy disk drive testing

6.Cleaning kit for floppy disk drive troubleshooting

7.Cleaning kit for optical drive troubleshooting

8.Multimeter

9.External monitor

10.USB compatible keyboard

11.Multimedia sound system with line-in and line-out ports

12.Headphones

13.USB test module and USB cable

14.Music CD

15.MIC module and MIC line

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

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Toshiba PROL450D manual Troubleshooting Introduction, Lan