Toshiba T4400SXC Maintenance Manual page 13

2.1 T4400SXC Troubleshooting
Pan 2 describes how to determine if a Field Replaceable Unit (FRU) in the T44QOSXC is
causing the computer to malfunction. The FRUs covered are:
1. Power supply board
2. System board
3. Floppy Disk Drive
4. Hard Disk Drive
5. Keyboard
6. Display
The following tools are required to perform the T4400SXC troubleshooting steps.
1. A T4400SXC Diagnostics Disk
2. A Phillips head screwdriver (2 mm)
3. An MS-DOS system disk
4. An 2DD or 2HD formatted work disk for floppy disk drive testing
5. A Cleaning disk kit for the floppy disk drive troubleshooting
6. A Printer port LED
7. An RS-232-C wraparound connector
8. A Printer wraparound connector
9. A Multimeter
10. External RGB monitor
11. External 5-1/4" floppy disk drive
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