T3400, T3400CT
Subtest 01 Sequential Read
This subtest performs a Cyclic Redundancy Check (CRC) that continuously
reads all tracks on a floppy disk. The following tracks are read according to
the media type in the FDD:
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.
A start track is specified when the FDD test is started from the Diagnostic Test
Menu. Refer to step 3 at the beginning of this section to set the start track.
Subtest 02 Sequential Read/Write
This subtest continuously writes data pattern B5ADADh to all the specified
tracks selected in subtest 01. Data 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. Data is then read and compared to the original data.
Subtest 04 Write Specified Address
This subtest writes specified data to a specified track, head, and address.
Subtest 05 Read Specified Address
This subtest reads data from a specified track, head, and address.
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