Toshiba satellite a20 series Benutzerhandbuch

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3.8  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 1. in this 
section. 
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 place pointed by 
track, head, and address. 
Subtest 05 
Read specified address 
This subtest reads data from a place pointed by track, head, and address 
specified by an operator.  
 
Satellite A20 Maintenance Manual (960-444)
 3-23