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3.8 USB Floppy Disk TestUSB Floppy Disk Test 3 Tests and Diagnostics
Subtest 01 Sequential Read
This subtest performs a Cyclic Redundancy Check (CRC) that continuously
reads all the tracks (track: 0 to 39/0 to 79) on a floppy disk.
The start track is specified at the start of the FDD test. Refer to 2.in this
chapter.
Subtest 02 Sequential Read/Write
This subtest continuously writes data pattern B5ADADh to all the tracks
(track: 0 to 39/0 to 79) on a floppy disk. 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 (track: 0 to
39/0 to 79) on a floppy disk. The data is then read and compared to the
original data.
Subtest 04 Write Specified Address
This subtest writes the data specified by an operator to a specified track, head,
and address.
Subtest 05 Read Specified Address
This subtest reads data from a track, head, and address specified by an
operator.
PORTEGE R100 Maintenance Manual (960-440) 3-21