3-2 420 Series
The DIAGNOSTIC TEST MENU contains the following functional tests:
❑ SYSTEM TEST
❑ MEMORY TEST
❑ KEYBOARD TEST
❑ DISPLAY TEST
❑ FLOPPY DISK TEST
❑ PRINTER TEST
❑ ASYNC TEST
❑ HARD DISK TEST
❑ REAL TIMER TEST
❑ NDP TEST
❑ EXPANSION TEST
❑ SOUND TEST
❑ CD-ROM TEST
You will need the following equipment to perform some of the Diagnostic test programs.
❑ The Diagnostics Disk (all tests)
❑ A formatted working disk for the floppy disk drive test (all tests)
❑ An external FDD attachment
❑ A cleaning kit to clean the floppy disk drive heads (Head Cleaning)
❑ A PC card wraparound connector for the I/O card test (Expansion test)
❑ A printer wraparound connector for the printer wraparound test (Printer test)
❑ An RS-232-C wraparound connector for the RS-232-C port wraparound test
(ASYNC test)
❑ A CD test media (Toshiba-EMI test disk TDY-03 and music CD) (CD-ROM test)
❑ External CRT (All tests)
❑ PS/2 or compatible keyboard (All tests)
❑ PS/2 or compatible mouse (Keyboard test)
❑ Serial port wraparound connector (ASYNC test)
❑ Multimedia sound system with line-in and line-out ports (Sound test)
❑ Headphone (Sound test)
❑ CD-ROM drive (CD-ROM test)
❑ A microphone
The following sections detail the tests within the Diagnostic Test function of the DIAGNOS-
TIC TEST MENU. Refer to Sections 3.19 through 3.25 for detailed information on the
remaining Service Program Module functions.
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