JPS6464178A - Automatic adjusting device for magnetic disk device tester - Google Patents

Automatic adjusting device for magnetic disk device tester

Info

Publication number
JPS6464178A
JPS6464178A JP62220899A JP22089987A JPS6464178A JP S6464178 A JPS6464178 A JP S6464178A JP 62220899 A JP62220899 A JP 62220899A JP 22089987 A JP22089987 A JP 22089987A JP S6464178 A JPS6464178 A JP S6464178A
Authority
JP
Japan
Prior art keywords
seek
microprocessor
control part
position signal
disk device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62220899A
Other languages
Japanese (ja)
Inventor
Koichiro Harayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62220899A priority Critical patent/JPS6464178A/en
Publication of JPS6464178A publication Critical patent/JPS6464178A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)

Abstract

PURPOSE:To automatically attain the seek adjustment and to efficiently execute a testing work by replacing a variable resister with a D/A converter and controlling the setting action with a microprocessor. CONSTITUTION:Respective types of a seek instruction are given from a microprocessor 5 through an interface circuit 7 to a magnetic disk device control part 3 and various seek actions are executed to a tested disk device 1. When the device 1 executes the seek action, a position signal is outputted from the control part 3 and the overshooting, an undershooting, an access time, etc., of the position signal are detected by a detecting circuit 4. The microprocessor 5, after D/A converters 61-65 are adjusted so that the seek adjustment can be optimum, based on the detecting value by the detecting circuit 4 in accordance with the built-in program, executes the seek action again and confirms the condition of the position signal. After this is repeated and the servo system of the control part 3 is automatically adjusted and the testing is executed.
JP62220899A 1987-09-03 1987-09-03 Automatic adjusting device for magnetic disk device tester Pending JPS6464178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62220899A JPS6464178A (en) 1987-09-03 1987-09-03 Automatic adjusting device for magnetic disk device tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62220899A JPS6464178A (en) 1987-09-03 1987-09-03 Automatic adjusting device for magnetic disk device tester

Publications (1)

Publication Number Publication Date
JPS6464178A true JPS6464178A (en) 1989-03-10

Family

ID=16758275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62220899A Pending JPS6464178A (en) 1987-09-03 1987-09-03 Automatic adjusting device for magnetic disk device tester

Country Status (1)

Country Link
JP (1) JPS6464178A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04223519A (en) * 1990-12-25 1992-08-13 Fujitsu Ltd Microprogram control method for magnetic disk device
US5305161A (en) * 1990-06-29 1994-04-19 Digital Equipment Corporation Adaptive track seeking for disk drives

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5305161A (en) * 1990-06-29 1994-04-19 Digital Equipment Corporation Adaptive track seeking for disk drives
JPH04223519A (en) * 1990-12-25 1992-08-13 Fujitsu Ltd Microprogram control method for magnetic disk device

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