ID these floppy jumpers?

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FNG2 Posted: Thu, Nov 20 2003 7:00 PM
The floppy of my Korg DSS-1 is going out. It won't load in most sound programs and some it will only load partially. The original is a Canon MD350. My Bro' sent me a Teac FD-235HF 240-U. I can get it to spin up but it gives either a "drive not ready" or "unformatted floppy" type error.

How can I get it to recognize 720K 2DD disks? 7 rows of jumper pins are as follows:
* * H-HO
* * OP
* * LHI
* * HHI
* * D1
* * D0
* * FG

it came with 2 - 2 pin jumper clips but I don't know where to place them. FG pins are soldered together. Placing a jumper between D0 pins seem to let the Korg recognize the floppy. I've tried placing the 2nd jumper horizontally across each of the other pin pairs successively doesn't seem to work.

Shouldn't this drive work in 2DD mode? Can someone help me identify these jumpers?

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Ramman replied on Fri, Nov 21 2003 8:19 AM
Try this site:


He goes through the process of replacing the drive and other info. From what I got, not all floppy drives will work.

Good luck!
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FNG2 replied on Mon, Nov 24 2003 3:14 PM
Thanks. I've seen the site and they are selling a replacement floppy drive for $62.00. I'm hoping to understand how to make this drive work or at least a reason why it won't work.

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FG stands for Floppy Ground. bridging it connects the signal ground (all odd-numbered pins on the floppy cable) to the frame ground, and should always be done when using drives in PCs.

D1 and D0 stand for Drive Select 1 and Drive Select 0, respectively.

Check out [url][/url] for more floppy interface details (search on the page for "LHI" to find the section on this.)

Also, check out [url][/url] - they sell kits for replacing this drive in Korg DSS-1's. The kit includes instructions for installation. The drive kit is $62 plus $6 shipping in the USA.
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