Epson 386 User's Guide download pdf (Page 165)

Random Seek Check

This test is identical to the sequential seek check, except that the seek

operation is performed on each track in random order instead of

sequential order. Select option 2 from the menu to start this test.

Write, Read Check

This test checks the ability of the selected disk drive to read and write

data from a diskette. The test writes to and reads from each cylinder

on the diskette, starting at the center.

Select option 3 from the menu to start this test.

If you have only one diskette drive, you see a prompt to remove the

diagnostics diskette (the Reference diskette) and insert a blank diskette

before running the test. You see these messages:

Use only a formatted blank diskette for this test.

Any data present may be erased.

If using drive A, remove your Diagnostics Disk.

Enter Y to start this check.

Enter N to return to the menu.

Make sure the blank diskette you prepared is in drive A, then press Y

and

Enter.

The program displays the current track number as each

cylinder is tested. For example, with a 1.2MB floppy disk, the first

message you see is:

Current track is 79

After the test is over, be sure the Reference diskette is in drive A

before you return to the device list.

Performing System Diagnostics

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Epson 386 User's Guide Page 165