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Thread: Maynard Electronic Hard Drive Motor Problem

  1. #1

    Default Maynard Electronic Hard Drive Motor Problem

    Hello, I have ISA HardCard 20 from Maynard Electronic. There is nice 20MB 3,5" MFM hard drive. Problem is with disk rotation. When I turn it ON, disk is not rotating, but when I start gently turning with ring which is connected to moving heads, disk start rotating and work without problems. When I turn it off and again turn on, sometimes disk starts without moving with heads, but mostly I must again repeat operation with moving heads.

    464A62D5-B1DA-4EF5-AB80-5014B39A4257_resize.JPG IMG_9829_resize.jpg
    IBM PC 5150(A): IBM PC 5150(B): IBM PC 5160 (64-256k): IBM PC 5160 (256-640k): IBM PC 5170 (099): IBM PC 5170 (319/339): IBM PC 5140: IBM PC 5162: IBM PC 5155: IBM PC Expansion Unit 5161:
    WANTED!: IBM 5175 monitor, IBM 5145 monitor, IBM PC/XT/AT rear screws, Intel INBOARD 386AT card, IBM 5140 keyboard, very early IBM PC (S/N: under 5000)
    My IBM PC hardware collection

  2. #2

    Default

    This is a classic case of stiction. There's plenty of discussion here about this subject -- it's been very well covered.

    https://www.google.com/search?q=site...d.org+stiction
    PM me if you're looking for 3" or 5" floppy disks. EMail For everything else, Take Another Step

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