Phase #20 - Extended Floppy Disk Interface Diagnostics; Phase #20 Test - AT&T 3B2 Off-Line Diagnostic Manual

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Phase #20 - Extended Floppy Disk Interface Diagnostics
Phase Name:
Type:
Function:
Test:
Time:
Warnings:
Notes:
Phase #20 Test
Test Number:
Function:
Procedure:
Extended Floppy Interface Control Test (efic_tst)
Interactive
This phase performs a floppy disk drive head position check.
Test 1 - checks the ability to write to and read from all sectors of the floppy
disk.
15 minutes
The test code assumes a formatted double-sided, dual-density diskette.
Further, the test code is configured using International Standards Organization
(ISO) Standard Dual-Density Format specification.
None
1
This test writes and reads back all sectors of all tracks.
The test procedure is as follows:
1. Write then read track 0 of sector 1.
2. Write then read track 79 of sector 1.
3. Repeat Steps 1 and 2 for sectors 2 through 9.
4. Repeat Steps I, 2, and 3 for tracks 1 and 78.
5. Repeat Steps I, 2, and 3 for tracks 2 and 77.
6. Continue this pattern until all remaining tracks (3 through 76) have
been tested.
7. Repeat Steps 1 through 6 for the other side of the floppy disk drive.
Hardware Tested: The WD1793 Floppy Disk Controller/Formatter is tested.
Data Returned: The failing test number (last number displayed on the system console before
failure) and failing test pattern are returned.
Notes: None
SYSTEM BOARD DIAGNOSTICS 3-135