3 Tests and Diagnostics  3.13 Hard Disk Test 
3-28 [CONFIDENTIAL]     Satellite Pro S300, TECRA A10/S10/P10 Maintenance Manual (960-684) 
Subtest 04  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. (Test the 
data interference in the neighbor track) 
Worst pattern data  Cylinder 
‘B5ADAD’ 0 cylinder 
‘4A5252’ 1 cylinder 
‘EB6DB6’ 2 cylinder 
‘151149’ 3 cylinder 
’63B63B’ 4 cylinder 
‘9C49C4’ 5 cylinder 
‘2DB6DB’ 6 cylinder 
‘D25114’ 7 cylinder 
Subtest 05  Partial Read 
  This subtest reads 1GB data that is in minimum, middle and maximum 
address of the HDD area. 
Subtest 06  Write specified address 
This subtest writes specified data to a specified cylinder and head on the 
HDD. 
Subtest 07  Read specified address 
This subtest reads data, which has been written to a specified cylinder and 
head on the HDD. 
Subtest 08  Sequential write 
This subtest writes specified 2-byte data to all of the cylinders on the HDD. 
Subtest 09  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.