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2.1
Troubleshooting
Chapter 2 describes how to determine if a Field Replaceable Unit (FRU) in the 610CT is
causing the computer to malfunction. The FRUs covered are:
1.
Power Supply
2.
System Board
3.
Floppy Disk Drive
4.
Hard Disk Drive
5.
Keyboard
6.
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.
A 610CT Diagnostics Disk
2.
A Phillips screwdriver (2 mm)
3.
A Toshiba MS-DOS system disk(s)
4.
A 2DD or 2HD formatted work disk for floppy disk drive testing
5.
A cleaning kit for 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.
An external monitor adapter
11.
An external monitor
610CT
2-1
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