Chapter Two - Testing13Chapter 2 - TestingOn units with MS-DOS, Xycom Automation provides diagnostic tests to verify theoperation of the system hardware functions. If any of these tests fail, either you donot have the correct default setting or there is a failure. Check the default settingsand run the tests again. If another failure occurs, contact Xycom Automation’sProduct Repair & Customization Department (see Chapter 5).NoteRemove device drivers and memory resident programs (TSRs) that are installed on thesystem before running Xycom diagnostics. If this step is not completed unexpectedfailures may occur.Make sure the BIOS setup menus are configured properly (factory-set configuration).To enter the BIOS setup menus:• Press F2 after the POST RAM test has completed.• Make the necessary changes by following directions on the screen.• Press ESC.• Press ENTER twice to save the settings and exit.Refer to the CPU manual for more information on the Setup Menu.Preparing for the TestsTo test your system, you need the following equipment:• Floppy disk drive• IBM PC/AT or PS/2-compatible• Xycom System Test Disk 3.5 inch, DS/DD disk (bootable), Xycom part number99290-001• Centronics-compatible printer cable• Parallel printer (Centronics-style interface)• Two serial loopback test connectors (refer to Figure 2- 1 for pinouts)• Formatted 3.5-inch, DS/HD (1.44 Mbyte) disk
