Toshiba T2000 Maintenance Manual page 74

CONTENTS
Subtest 01 Sequential read
This subtest performs the Cyclic Redundancy Check (CRC) with a continuous read
operation of all the tracks on a floppy disk.
The tracks available for the floppy disk formats are:
Double-sided, double-density (2D): Tracks 0 to 39.
Double-sided, double-density, double-track (2DD) and Double-sided, high-density,
double-track (2HD): Tracks 0 to 79.
The start track was specified when you selected the Floppy Disk Test from the
DIAGNOSTIC TEST MENU.
Subtest 02 Sequential read/write
This subtest writes data to all tracks (as defined above) continuously, and then reads
the data out and compares it with the original data.
(The data pattern B5ADADh is repeated.)
Subtest 03 Random address/data
This subtest writes random data to random addresses on all tracks defined in subtest
01 and then reads the data out and compares it with the original data.
Subtest 04 Write specified address
This subtest writes the specified data to the specified track, head, and address. You
can specify the test data, track number, and head number.
Subtest 05 Read specified address
This subtest reads the data from the specified track, head, and address. You can
specify the track number and head number.
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