Toshiba Satellite 1400 Series Maintenance Manual page 134

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3 Tests and Diagnostics
Subtest 01
Sequential Read
This subtest performs a Cyclic Redundancy Check (CRC) that continuously
reads all the tracks on a floppy disk. The following tracks are read according
to the media type in the floppy disk drive:
The 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. The 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. The 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.
3-22
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.
Satellite 1400/2400 Maintenance Manual (960-364/365)
3.8 Floppy Disk Test

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