On 07/09/2014 07:04 PM, Ville Laustela wrote: > > Hello. > > I had a brief return to this project. I bought a working 1541-II board from eBay, just for a reference. I am still getting exactly the same symptoms (no stepper movement, drive halts), same thing with both drive mechanisms. > > As I have no reason to blame this board having the same fault, I am now almost positive that I must have two faulty drive mechanisms (and the boards that I have, could have been working all along). I am afraid that earlier while fiddling with these drives, I must have connected the drive cables wrong way around. As said on the Ray Carlson's site: "If accidently reversed, you can do serious damage to the drive board or mechanism". > > I see at least two 1541-II mechanisms on eBay, although of different manufactorer. Are the drive mechs interchangable? Yes, at least I was able to switch between a Chinon and a Mitsumi drive without problems on one of my 1541-II here. The front bezels differ between them though, so these need to be moved with the mechanism. And here's a hint about how to avoid switching the connectors: Before disassembling something, I mark every connector with a permanent marker where the mark connects both parts of the connector. Make sure the mark is in a different position on each connector and it's very easy to alway put things together the right way. No stepper movement could be U8, U10 or U13. Gerrit Message was sent through the cbm-hackers mailing listReceived on 2014-07-09 18:01:13
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