Toshiba R600 S4202 Maintenance Manual - Page 152
Tests and Diagnostics, 13 Hard Disk Test
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3 Tests and Diagnostics 3.13 Hard Disk Test 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 'B5ADAD' '4A5252' 'EB6DB6' '151149' '63B63B' '9C49C4' '2DB6DB' 'D25114' Cylinder 0 cylinder 1 cylinder 2 cylinder 3 cylinder 4 cylinder 5 cylinder 6 cylinder 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 Subtest 07 Subtest 08 Subtest 09 Write specified address This subtest writes specified data to a specified cylinder and head on the HDD. Read specified address This subtest reads data, which has been written to 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. 3-28 [CONFIDENTIAL] PORTEGE R600 Maintenance Manual (960-709)