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fengland
October 14th, 2010, 05:41 AM
I found a 520st without the floppy drive or power supply. Does anyone have an extra of either of these they'd be willing to sell? I have an internal st floppy I might try to adapt if I can't find one.

billdeg
October 17th, 2010, 07:47 AM
there are a number on ebay, various prices. I just made a deal from a seller on craigslist - two for $50 plus shipping if that helps price them. Not sure if they work.

Chuck(G)
October 17th, 2010, 08:04 AM
You can use a standard 3.5" floppy drive if you've got the right cable with that funny DIN plug. (I may still have such a cable in my hellbox). All you need is a power supply for the drive. ISTR that the original 520ST floppy drive was single-sided.

dorkbert
October 17th, 2010, 08:17 AM
I have a dead (cyclng color) 1040ST that might be useful. for the cost of shipping.

fengland
October 18th, 2010, 05:22 AM
I guess I'll try to homebrew it. I have a dead 1040st too, maybe I can use it's floppy drive if I can find the right cable to adapt. Thanks.

dorkbert
October 18th, 2010, 03:00 PM
would the 520 logic board fit in a 1040? If it does, that might be a clearer approach.

fengland
October 19th, 2010, 05:13 AM
that's true, but the 520 doesn't have the internal connectorsfor the floppy and power supply. And some of the jacks are in different places, like the midi jacks are on the back, so it probably wouldn't fit exactly. What's the problem with the 1040? maybe I could try to fix it.

dorkbert
October 19th, 2010, 08:23 PM
interesting. The connector isn't populated on the board or is it completely absent?

Chuck(G)
October 19th, 2010, 09:22 PM
Look carefully--maybe it's been removed; they can be hard to find. I assume that the WD1772 is still on the board...

fengland
October 20th, 2010, 05:31 AM
I'll look for unpopulated headers. It's an old 520st though before they had internal floppy drives, so I wouldn't be surprised if there is just the external connector.

Chuck(G)
October 20th, 2010, 09:15 AM
I'm having trouble following the thread. The 520ST does not have an internal floppy header. None. Zilch. It only has the external DIN connector. Is that what's missing? If so, a floppy-less (i.e. missing the DIN connector) 520ST would be very unusual.

dorkbert
October 20th, 2010, 09:44 AM
The discussion morphed from seeking an external floppy drive to whether or not it is feasible to migrate a 520 logic board into a 1040 chassis with a dead logic board (thus forgo the need for an external floppy drive.)

Chuck(G)
October 20th, 2010, 09:49 AM
The discussion morphed from seeking an external floppy drive to whether or not it is feasible to migrate a 520 logic board into a 1040 chassis with a dead logic board (thus forgo the need for an external floppy drive.)

Not without a bunch of rework of the board and having case holes in the wrong places, as I recall. You'd have to devise a way to connect a floppy cable to the board (i.e. soldering) and also provide power to the floppy. More work that it's worth, methinks. And you lose the original 520ST case.

daviidwilson
November 2nd, 2010, 08:35 AM
would the 520 logic board fit in a 1040? If it does, that might be a clearer approach.

that's true, but the 520 doesn't have the internal connectorsfor the floppy and power supply. And some of the jacks are in different places, like the midi jacks are on the back, so it probably wouldn't fit exactly. What's the problem with the 1040? maybe I could try to fix it.


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dorkbert
November 2nd, 2010, 10:09 AM
that's true, but the 520 doesn't have the internal connectorsfor the floppy and power supply. And some of the jacks are in different places, like the midi jacks are on the back, so it probably wouldn't fit exactly. What's the problem with the 1040? maybe I could try to fix it.Last time I powered it up, it was cycling some colour. Hasn't tried it since.