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Test Program for Field.
Satellite L20 Maintenance Manual(960-Q01) 113
3.8 Floppy Disk Test
CAUTION: Before running the floppy disk test, prepare a formatted work disk. Remove
the diagnostics disk and insert the work disk into the FDD. The contents of the floppy disk
will be erased.
To execute the Floppy Disk Test select 05 from the Diagnostic Test Menu, press Enter and
follow the directions on the screen. The Floppy Disk Test contains five subtests that test the
FDD. Move the highlight bar to the subtest you want to execute and press Enter.
Subtest 01 Sequential Read
This subtest sequentially reads all the tracks (Tracks 0 to 79)on the floppy
disk.
Subtest 02 Sequential W/R/C
This subtest continuously writes the data pattern B5ADADh to all the
specified tracks selected in Subtest 01. The data pattern is then read and
compared to the original data.
Subtest 03 Random Address/Data
This subtest writes random data to random addresses on all tracks defined in
Subtest 01. The data is then read and compared to the original data.