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Toshiba satellite a20 series User Manual

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3.2  Executing the Diagnostic Test 
3  Tests and Diagnostics 
3.2  Executing the Diagnostic Test 
Toshiba MS-DOS is required to run the DIAGNOSTICS TEST PROGRAM. To start the 
DIAGNOSTIC TEST PROGRAM, follow these steps: 
1.  Insert the Diagnostics disk in the floppy disk drive and turn on the computer while 
pressing U.  
(The Diagnostics Disk contains the MS-DOS boot files.) 
NOTE:  To execute the CD-ROM or DVD-ROM test, make sure the CD-ROM and CD-
ROM drive or DVD-ROM and DVD-ROM drive is installed in the computer. 
The following menu will appear: 
 
 
NOTE: To exit the DIAGNOSTIC TEST MENU, press 
Esc
. If a test program is in 
progress, press 
Ctrl
 + 
Break 
to exit the test program, or press 
Ctrl 
+ 
C 
to stop the test 
program.  
Satellite A20 Maintenance Manual (960-444)
 3-3