Toshiba Satellite A10 Maintenance Manual page 145

3 Tests and Diagnostics
Subtest 04
Subtest 06
Subtest 07
Subtest 09
Subtest 10
3-30
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Cross talk & peak shift
This subtest writes eight types of worst pattern data (listed below) to a
cylinder, then reads the data while moving from cylinder to cylinder (to check
the data interference in the neighbor track) to compare.
Worst pattern data
'B5ADAD'
'4A5252'
'EB6DB6'
'149249'
'63B63B'
'9C49C4'
'2DB6DB'
'D24924'
Write specified address
This subtest writes specified data to a specified cylinder and head on the
HDD.
Read specified address
This subtest reads data from a specified cylinder and head on the HDD.
Sequential write
This subtest writes specified 2-byte data to all of the cylinders on the HDD.
W-R-C specified address
This subtest writes data to a specified cylinder and head on the HDD, then
reads the data and compares it to the original data.
Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)
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3.11 Hard Disk Test
Cylinder
0 cylinder
1 cylinder
2 cylinder
3 cylinder
4 cylinder
5 cylinder
6 cylinder
7 cylinder