+eebuckeye Posted February 6, 2020 Share Posted February 6, 2020 The drive will not load disks and I ran a drive test program and it shows that track numbers are not being read correctly. What chips could cause this problem? Thanks! Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted February 6, 2020 Share Posted February 6, 2020 Not having done any advanced troubleshooting with these drives my first thought would be to check the disk you are using to test on another drive and make sure it is not duff. It is apparently getting some good GCR data, which could be anything from the head (including alignment,) down the line to the input circuit, including the cabling. Have you had it open? Quote Link to comment Share on other sites More sharing options...
+eebuckeye Posted February 6, 2020 Author Share Posted February 6, 2020 Have not opened it yet.. next step for sure but not sure what I'll be able to do with it. The drive will not format either and I have tried other disks. It does seem to load a directory though which is interesting... I guess I'm hoping it is one of the main chips where I might have a spare. Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted February 7, 2020 Share Posted February 7, 2020 If it will load a directory it could be a cabling problem, but I do not suspect the read circuitry. I would almost think it is an alignment problem. Did it ever work before? Have you cleaned the head? Quote Link to comment Share on other sites More sharing options...
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