User Guide

100CS 2-1
2.1 Troubleshooting
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. System Board(s)
2. VGA Board
3. HDD I/F Board
4. Floppy Disk Drive
5. Hard Disk Drive
6. Keyboard
7. Display
The Diagnostics Disk operations are described in Chapter 3 and detailed replacement proce-
dures are given in Chapter 4.
The following tools are necessary for implementing the troubleshooting procedures:
1. Diagnostics disk
2. Phillips screwdriver
3. Toshiba MS-DOS system disk(s)
(You must install the following onto the disk: SYS.COM, FORMAT.COM,
FDISK.COM and FDISK.EXE)
4. 2DD or 2HD formatted work disk for floppy disk drive testing
5. Cleaning kit for floppy disk drive troubleshooting
6. RS-232-C wraparound connector
7. Printer wraparound connector
8. Multimeter
9. External CRT
10. PS/2 or compatible keyboard
11. PS/2 or compatible mouse
12. Serial port wraparound connector
13. PC card wraparound card