If you have only one diskette drive, you see a prompt to remove the the Reference diskette and insert a blank diskette before running the test. You see these messages:

If using drive 1, remove your Reference Disk.

Insert a formatted blank disk in the drive before starting the check.

Any data present may be erased.

Start the check ? (Y/N)

Make sure the blank diskette you prepared is in drive A (l), then select Y. The program displays the current track number as each cylinder is tested. For example, with a 1.44MB diskette, the first message you see is:

Current track is 79

After the test is over, be sure to replace the Reference diskette in drive A before you select another device from the Device List or exit System diagnostics.

Disk Change Check

This option tests the ability of a diskette drive to detect whether a diskette has been inserted or removed. Disk changes cannot be detected by a 360KB diskette drive.

Select option 4 from the menu to start this test. The program checks the selected drive type; if it is a 360KB drive, you see these messages:

Drive d is a 360 KB drive.

DISK CHANGE is not allowed with this type of drive.

Press ENTER to return to the menu.

C - 2 6 Performing System Diagnostics