SY99: the 999-disk USB emulator (no software needed)

The Yamaha SY99 is a synthesiser combining frequency modulation synthesis (branded as Advanced FM) and sample-based synthesis (branded as Advanced Wave Memory 2) and the direct successor to Yamaha's SY77/TG77

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EX5_etc
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Re: SY99: the 999-disk USB emulator (no software needed)

Unread post by EX5_etc » Thu Jul 31, 2014 7:07 am

I don't recall the exact dimensions but a little over one foot of ribbon cable would be adequate for the upgrade.

The original floppy does not use a separate connector to power up. Check the table I posted above, the GND and +5V signals are found on the 26-pin connector. Years ago when I sold upgrade kits on ebay (with new Sony 1.44M drives) I made some where I had re-used a power connector. Later on I improved the kit and I simply used two wires coming from the 26-pin connector as "power wires" for the drive. I had the tools and the connector pins to fabricate something that worked.

The adapter should look like a Y-splitter of some kind. On one side you have the 26-pin connector and 26 wires coming out of it. If you do build one make sure to align pin 1 of the 26-pin IDC connector (it is labeled with an embossed arrow) with wire 1. Most of the time wire 1 is labeled with a red solid stripe and in rare cases with a black stripe. Then chose one GND wire and one +5V wire and separate them from the 26-wire bunch but don't cut anything. Find which wire goes where as far as the power connector of the drive goes. The pinout of the power connector of a floppy drive can be found online and various sellers on ebay should sell them for a low price. The remaining wires go to the 34-pin IDC connector where pins and wires must follow the connections of the table posted above.

I don't have a picture that shows all this but even if I had one I would not post it. When I advertised/sold the kits I had included a note to prospective intellectual property "thieves" that since I was the first to design/fabricate/sell a single piece adapter I also had the copyright of it. Anyone else selling a single piece adapter would be getting some paperwork from my lawyer. Anyone making one for themselves should feel free to do so. Yamaha sold a 3-piece adapter and others made a 2-piece adapter but not a single piece one. By single piece I mean an adapter that you could not take apart. Yamaha's consisted of two ribbon cables and one small PCB. I have seen some that consist of one ribbon cable and a PCB that attaches to the drive. All this is fine with me and the makers can sell them as they wish.

As I have mentioned before, I do not make kits or adapters anymore and at this point I don't even have access to my SY99 that has been put in long time storage.

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DrF


Motif XF6, SY99, SY85, QS300, PSR1000, WX5, EX5R, A5000, TG500, TG55, RM50, QY700, QY100, QX5FD, MJC8, YDP2006, REV500, EMP700, EQ500U, MCS2, AW16G, Axiom Pro 49 and a few other things by Behringer, Evolution, Philips, Tascam, Technical Pro, Yamaha, etc, etc,... I wish I had time to use all this stuff; I am not even pro. :-)

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Re: SY99: the 999-disk USB emulator (no software needed)

Unread post by EX5_etc » Sun Aug 03, 2014 7:13 pm

The picture of a mask for proper drilling has been added to one of the earlier posts.

DrF


Motif XF6, SY99, SY85, QS300, PSR1000, WX5, EX5R, A5000, TG500, TG55, RM50, QY700, QY100, QX5FD, MJC8, YDP2006, REV500, EMP700, EQ500U, MCS2, AW16G, Axiom Pro 49 and a few other things by Behringer, Evolution, Philips, Tascam, Technical Pro, Yamaha, etc, etc,... I wish I had time to use all this stuff; I am not even pro. :-)

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Re: SY99: the 999-disk USB emulator (no software needed)

Unread post by inkubinator » Sat Oct 03, 2015 12:37 pm

Hello,
I have found this on the Internet : http://www.alancomputech.com/intel-26-t ... 2-202.html
I woluld like to ask whether this converter is proper for use with SFRM72-FU-DL USB Floppy Drive Emulator ?
Thank you for your answer.
Regards
Pawel


Yamaha SY99, TG500, RM50, RY20, REV500, CBX-K1, UX256, Roland JD-800, SH-201, VT-3, Akai Z8, Korg Radias, Electribe ER-1, Electron Machinedrum SPS-1 MKII, Access Virus TI2, Texas Instruments Speak&Spell + all cartridges.

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Re: SY99: the 999-disk USB emulator (no software needed)

Unread post by EX5_etc » Mon Oct 05, 2015 4:17 am

A positive or negative reply requires knowledge of the pinouts on both sides of that adapter. Without that knowledge any reply most likely will be pure speculation.

DrF


Motif XF6, SY99, SY85, QS300, PSR1000, WX5, EX5R, A5000, TG500, TG55, RM50, QY700, QY100, QX5FD, MJC8, YDP2006, REV500, EMP700, EQ500U, MCS2, AW16G, Axiom Pro 49 and a few other things by Behringer, Evolution, Philips, Tascam, Technical Pro, Yamaha, etc, etc,... I wish I had time to use all this stuff; I am not even pro. :-)

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Re: SY99: the 999-disk USB emulator (no software needed)

Unread post by jhulk » Mon Oct 05, 2015 7:12 pm

thats known as a slim floppy converter they are for changing the normal floppy drive to a slim floppy version i have loads of those adapters for the emax and e3
they work great but they are for the new standard of slim floppy drives
on the emaxes we have to add some extra links so that they make them ds0

i could do a test but as the flat cable is supposed to go to a slim floppy they might be reversed if being used the other way round



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Re: SY99: the 999-disk USB emulator (no software needed)

Unread post by inkubinator » Fri Oct 09, 2015 11:35 am

Thank you all for your answer.
I have replaced an old rubber belt with a new one and my 23-years-old SY99's disk drive works as new :D
And... that sound !!! :D You know what I mean...

Any USB emulator gives me no speed advantage over an old 720 kB disk drive, so I decided to use an original set as it works without any problem.


Yamaha SY99, TG500, RM50, RY20, REV500, CBX-K1, UX256, Roland JD-800, SH-201, VT-3, Akai Z8, Korg Radias, Electribe ER-1, Electron Machinedrum SPS-1 MKII, Access Virus TI2, Texas Instruments Speak&Spell + all cartridges.

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Re: SY99: the 999-disk USB emulator (no software needed)

Unread post by parametric » Fri Oct 09, 2015 3:49 pm

Nice result.

Those old drives are actually very robustly made and will repay a good clean of the various pulleys and the head - and a new belt usually gets you back where you were . . . .

parametric


Alesis Fusion 8SSD AND 6SSD - BOTH are 384Mb/120Gb SSD/Akai ADVANCE61/Yamaha MOXF6/1024Mb Flash Ram/Yamaha SY85/8.5mb vol/1024k non-vol/DX21/Roland MT32/Bachmann double overstrung Baby Grand Piano/Win10 Pro/Ubuntu MATE 15.0.4/iBook G4/Mac OS 10.4.6/ProTools 7.4/MBox2/M-Audio 24/96 Sector101 2x SYEMB06 / 4 x EXM-E3 128MB DRAM Module
BRAND NEW DSDD (720k) FLOPPY DISKS FOR SALE - viewtopic.php?f=22&t=9217

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Re: SY99: the 999-disk USB emulator (no software needed)

Unread post by abruzzi » Fri Jan 06, 2017 7:19 pm

EX5_etc wrote:The letters NC in the attached picture mean No Connection. The small triangle on the connectors points to pin 1. You only need one 26-pin IDC connector, one 34-pin IDC connector, one 4-pin floppy drive power connector with leads, about 30cm of 26-wire ribbon cable and the proper tool to clamp the IDC connectors. Someone who works with electronics and especially on projects with microprocessors should be able to make an adapter for you.
I had a few quick questions on this if anyone can answer them. I could probably figure this out if I opened my SY up, but I don't want to do that until I have a new floppy to install. Since I can't find cables to adapt 34 to 26, and I have no patience for building custom cables, I figured I'd build a small PCB adapter that connects all the right pins and would slide onto the 34pin connecter on the back of the PC floppy and you plug in the 26 pin cable.

- I'm going to try to make the board as short as possible, but is there clearance issues in the SY I need to worry about (depth, height)? Is there enough space to attache the board directly to the back of the floppy and the original 26 pin cable top the ack of the board?

- I'm assuming the SY floppy gets its power from the 5v lines on the ribbon cable, so I'll need to break those out to a floppy power connector, correct?

- The standard floppy power has a 5v and a 12v line. I take it the gotek drives don't use the 12v?

- Does anyone remember if the original 26 pin ribbon cable is keyed?


Thanks for any help. I've never designed a PCB before, but I have an experienced friend that will make sure I don't do anything too stupid. If it all works out, I'll probably upload the board to OSHPark or somewhere similar where anyone can order copies.



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Re: SY99: the 999-disk USB emulator (no software needed)

Unread post by EX5_etc » Fri Aug 11, 2017 7:14 pm

I normally receive a message that someone posted a comment after my comment but this time I got nothing. So It's no surprise I answer the questions 7 months later... You may have already found the answers to the questions.

There are clearance issues you have to worry about but that depends on how you design the adapter. Just install the emulator without any connections and take measurements.

You do need to break the power lines out of the ribbon cable.

The Gotek drives don't use 12 V anywhere.

The original ribbon is keyed in that if you plug it in the wrong way it won't work because one side of the cable is insulated and the other is exposed.

DrF


Motif XF6, SY99, SY85, QS300, PSR1000, WX5, EX5R, A5000, TG500, TG55, RM50, QY700, QY100, QX5FD, MJC8, YDP2006, REV500, EMP700, EQ500U, MCS2, AW16G, Axiom Pro 49 and a few other things by Behringer, Evolution, Philips, Tascam, Technical Pro, Yamaha, etc, etc,... I wish I had time to use all this stuff; I am not even pro. :-)

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