2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
3
2.1 Troubleshooting 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