Path: csiph.com!x330-a1.tempe.blueboxinc.net!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Rod Speed" Newsgroups: comp.sys.ibm.pc.hardware.storage,comp.sys.ibm.pc.hardware.misc Subject: Re: MFM Miniscribe HDD does not spin, how to repair?? Date: Wed, 7 Dec 2011 04:13:18 +1100 Lines: 36 Message-ID: <9k70pgFonrU1@mid.individual.net> References: <1a48a8a8-9a7d-4fd5-b8b8-9de48cc2d51e@g7g2000vbd.googlegroups.com> <9jtaikF1cjU1@mid.individual.net> <8299422c-5700-413a-bac4-77e18b9c9f93@q11g2000vbq.googlegroups.com> X-Trace: individual.net emd5FD0LfSU18qrTb9pYuAZlRG7UT3XqNq0hM/a+gYE0LOTUo= Cancel-Lock: sha1:vWVs/MZuUmtsFoI8MnxgASukBiA= X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.2670 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670 X-RFC2646: Format=Flowed; Original Xref: x330-a1.tempe.blueboxinc.net comp.sys.ibm.pc.hardware.storage:2083 comp.sys.ibm.pc.hardware.misc:22 larry moe 'n curly wrote > XYLOPHONE wrote >> I am trying to get my 20MB Miniscribe 3.5" hard drive running again. >> The problem is that it doesn't spin up anymore when I power it up. I >> disassembled the drive's PCB, and swapped it with the PCB from a >> working drive, and the other HD works with both PCBs, so proving the >> problem is with the spindle motor itself. >> Looking closer at it, I notice that when I power it up, the platter >> spins about 1/4 of a revolution, then stops forever, until I power >> off and on again. Rotating it manually doesn't fix it. >> What could be the problem? I feel that if I can get the HDD to >> correctly spin again, I should be able to access the data. This drive >> is vintage, so I'm doing all efforts to rescue it. > Does the RedHill.net.au have any info? HDDguru.com forums are > dominated by people who do HD repair and data recovery. > I would try unplugging the cables from that motor and the motor of a > working drive and compare the resistance readings of their coils. > However resistance measurements don't always tell everything about > coils, and for that you need to ring the coil: > http://members.ozemail.com.au/~bobpar/k7205.pdf > http://repairfaq.org/sam/flytest.htm > Is it possible to replace the motor without opening the drive? Nope. > I have a feeling dust would be a problem if even if the motor can be removed that way. Its academic because it cant be.