Thoughts and ideas on restoring SY77.

Yamaha SY77 is a 16 voice multitimbral music workstation first produced by Yamaha Corporation in 1989. The SY77 is a synthesizer whose architecture combines AFM (Advanced Frequency Modulation) synthesis, AWM2 (Advanced Wave Memory 2) for ROM-borne sample-based synthesis, and the combination of these two methods christened Realtime Convolution and Modulation Synthesis (RCM).

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Studiostriver
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Thoughts and ideas on restoring SY77.

Unread post by Studiostriver » Thu Aug 22, 2019 11:46 pm

Hi guys.

After playing this synth for quite some time I have thoughts using it for a lifetime for FM sounds. Nevertheless I felt that it will need some restoration in a future,some estethic and some to being able to stand the test of time.

I want to ask is there anybody who has done some to share their photos and where they found parts would be the second question.

I will put list of things currently I find the need to get in a future or find desirable:

1.Screws ( I feel many of them got lot of rust. Getting the right size and maybe high quallity would be desirable thing)

2.Plastic synth cheeks restoration. This one are in the worst shape of any parts so far. Plastic screws got damaged and right is totally demolishes on one spot. Gluing it,getting read o scratches, maybe re paint it would be very desirable.

One things that comes to my mind is to make entire new one from would from sound crafty luthiers.

3. Floppy/USB emulator. I got Gotek by dude who done the mod,and got covnerter from 34 to 26 pin but I need to get IDC Flat Ribbon Cable.
I think it will work good judging by peoples comments online ,the only think I dislike is its cheap plastic.

Is this the right cable to get can anyone tell me?
https://www.ebay.com/itm/2Pcs-Pitch-1-2 ... 1151751608

4. Retro white the keys in hydrogen 12% to get them super bright.

5. Getting rid of corrosion inside on some parts with alcohol or WD40,later use some spray over it to slow the process as slow as possible.

6.Changing into more visable screen with beter light.

You can add recomendation for your desirable mods,and any of them I mentined if you done it where you bought it etc..

Cheers. ;)
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Re: Thoughts and ideas on restoring SY77.

Unread post by Studiostriver » Thu Sep 12, 2019 5:26 pm

Not even single one comment. :? I was hoping that for the tie how much this synth is old there are bunch od dudes and dudesses who make some restoring on their beloved synth. :geek:
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Re: Thoughts and ideas on restoring SY77.

Unread post by Miks » Thu Sep 12, 2019 6:55 pm

As for the display - see here:

viewtopic.php?f=54&t=8045

and maybe here:

viewtopic.php?f=55&t=5973

The display/s on a SY77 and a SY99 is/are (originally) the same so all tips & tricks regarding a display swap on a SY99 will work on a SY77 too...

Maybe this helps...?
My (key related) gear (in alphabetical order):
Ferrofish: B4000+
Kawai: K1 II
Korg: M1 (up'd to EX, w/ 'Cool Blue'), M1REX (w/ 'Cool Blue'), Poly-800
Roland: D-50, D-110, D-550, PG-1000
Yamaha: AW1600, DX7IID (w/ 'Cool Blue'), EX5R, RM50, RX5, SY99 (w/ 'Cool Blue'), TG500,
TX-802, YMM2
Sector101: SYEMB05 (5x), SYEMB06 (3x), EXFLM2 (1kit), MCD Sweet16 (1x), DataBlade32 (1x),
WaveBlade 8MB Card (1x) & 1x Programmer Unit for WaveBlade
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Re: Thoughts and ideas on restoring SY77.

Unread post by Derek » Thu Sep 12, 2019 7:05 pm

Sorry, I tend not to post when I don't have anything to add. The Cool Blue Mods and Floppy/Battery fixes are well covered, and then perhaps the lack of responses is because few people have had to do any other type of restoration. The restoration I had to do on mine doesn't quite fit your description, so I didn't bother chiming in, but here it is if you want it :)

When I got my SY77 as an ebay purchase in 2007 it was the only purchase from eBay I have ever had that was not "as described". It was described as pristine, but the LCD was knackered, the floppy drive was not working, and the case/keys were a mess it was generally filthy but made worse because somebody had glued labels on it in the button areas, pulled them off and left all the glue residue.

So it took a lot of isopropyl alcohol and elbow grease to clean it up and I negotiated a discount on the purchase price to compensate.
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Re: Thoughts and ideas on restoring SY77.

Unread post by Rara » Fri Sep 13, 2019 12:59 pm

Side cheeks for sy77 are always in demand and if they ever (rarely) pop up on ebay,
they are are usually sold soon after they are listed. Or, the sellers who part out (working) SY77's,
often throw out the shell (cheeks as well) and only sell the smaller easier to pack interior parts.
They often wont pack or ship larger parts like front panels and side cheeks because they are lazy,
regardless of the fact the buyer is willing and happy to pay extra for the privilege.
I have been looking for a left cheek (floppy side) for 8 years ..... 8O

Rara 0-)
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Re: Thoughts and ideas on restoring SY77.

Unread post by Studiostriver » Fri Sep 13, 2019 11:28 pm

Miks wrote:
Thu Sep 12, 2019 6:55 pm
As for the display - see here:

viewtopic.php?f=54&t=8045

and maybe here:

viewtopic.php?f=55&t=5973

The display/s on a SY77 and a SY99 is/are (originally) the same so all tips & tricks regarding a display swap on a SY99 will work on a SY77 too...

Maybe this helps...?
Nice, I like the blue color very much.
Derek wrote:
Thu Sep 12, 2019 7:05 pm
Sorry, I tend not to post when I don't have anything to add. The Cool Blue Mods and Floppy/Battery fixes are well covered, and then perhaps the lack of responses is because few people have had to do any other type of restoration. The restoration I had to do on mine doesn't quite fit your description, so I didn't bother chiming in, but here it is if you want it :)

When I got my SY77 as an ebay purchase in 2007 it was the only purchase from eBay I have ever had that was not "as described". It was described as pristine, but the LCD was knackered, the floppy drive was not working, and the case/keys were a mess it was generally filthy but made worse because somebody had glued labels on it in the button areas, pulled them off and left all the glue residue.

So it took a lot of isopropyl alcohol and elbow grease to clean it up and I negotiated a discount on the purchase price to compensate.
Well thanks for your input. ;)
Rara wrote:
Fri Sep 13, 2019 12:59 pm
Side cheeks for sy77 are always in demand and if they ever (rarely) pop up on ebay,
they are are usually sold soon after they are listed. Or, the sellers who part out (working) SY77's,
often throw out the shell (cheeks as well) and only sell the smaller easier to pack interior parts.
They often wont pack or ship larger parts like front panels and side cheeks because they are lazy,
regardless of the fact the buyer is willing and happy to pay extra for the privilege.
I have been looking for a left cheek (floppy side) for 8 years ..... 8O

Rara 0-)
8 years,damn. My SY7 got damage on right cheek,but its not too much,its geting to be fixed by a tech,since all parts are there,just need to get glued tight.

So if no one was doing any other mods like something custom it speaks at least of well built quality of this insturment and how it can stay in good shape for years.
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Re: Thoughts and ideas on restoring SY77.

Unread post by Rara » Sat Sep 14, 2019 2:45 am

Studiostriver wrote:
Fri Sep 13, 2019 11:28 pm
So if no one was doing any other mods like something custom it speaks at least of well built quality of this instrument
and how it can stay in good shape for years.
Well built yes :-) I'm not particularly interested in "modding" a synth except for things which
keep them usable and reliable.
eg floppy drives, LCD back lights and battery holders etc. otherwise unnecessary mods like
circuit bending or something else custom devalues a synth IMO.

0-)
Last edited by Rara on Sat Sep 14, 2019 4:35 am, edited 1 time in total.
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Re: Thoughts and ideas on restoring SY77.

Unread post by parametric » Sat Sep 14, 2019 3:52 am

I agree <Rara> . . . .

Max out the memory, fix the floppy or upgrade to a usb emulator, by all means . . . .

I did this with my SY85 . . . . . (but just fixed the floppy drive)

I DID consider taking out the captive mains lead (ALWAYS hated captive leads) and replacing it with an IEC Socket . . . .

Then YOU decide how long a lead you need (IYSWIM).

The Tendency of Yamaha to do this has always niggled me . . . . . :/:

. . . but then there is much to be said for "Keeping it Original" - which is less "complicated" later, if you wish to sell it anytime . . :think:

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BRAND NEW DSDD (720k) FLOPPY DISKS FOR SALE - http://www.yamahaforums.co.uk/forum/vie ... =22&t=9217

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Re: Thoughts and ideas on restoring SY77.

Unread post by Rara » Sat Sep 14, 2019 4:45 am

power cords and IEC sockets is something I have wanted to do for a long time. :idea:
I never got around to doing that.

Rara 0-)
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Re: Thoughts and ideas on restoring SY77.

Unread post by Studiostriver » Sun Sep 15, 2019 6:03 pm

Rara wrote:
Sat Sep 14, 2019 4:45 am
power cords and IEC sockets is something I have wanted to do for a long time. :idea:
I never got around to doing that.

Rara 0-)
I actually have that on my SY77,previous user made that mod already and it works fine.
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Re: Thoughts and ideas on restoring SY77.

Unread post by Studiostriver » Mon Sep 16, 2019 2:37 pm

Just sent my for final restoring of cheeks, glueing,inside he will put metal connections to make them stop from future crackings and after that painting with black color.

I needed to fix also last key C(kind a works slower) and it will good for lifetime playing I hope. ;)

I just wish I can find original size black screws to change because some got beaten terribly and wear off. :confusion-confused:
Last edited by Studiostriver on Mon Sep 16, 2019 5:17 pm, edited 1 time in total.
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Re: Thoughts and ideas on restoring SY77.

Unread post by Miks » Mon Sep 16, 2019 3:18 pm

Studiostriver wrote:I just wish I can find original size black screws to change because some got beaten terribly and wear off.
Maybe this shop can help...?

screwsandmore.de/en/product-range/black-screws/?p=1
My (key related) gear (in alphabetical order):
Ferrofish: B4000+
Kawai: K1 II
Korg: M1 (up'd to EX, w/ 'Cool Blue'), M1REX (w/ 'Cool Blue'), Poly-800
Roland: D-50, D-110, D-550, PG-1000
Yamaha: AW1600, DX7IID (w/ 'Cool Blue'), EX5R, RM50, RX5, SY99 (w/ 'Cool Blue'), TG500,
TX-802, YMM2
Sector101: SYEMB05 (5x), SYEMB06 (3x), EXFLM2 (1kit), MCD Sweet16 (1x), DataBlade32 (1x),
WaveBlade 8MB Card (1x) & 1x Programmer Unit for WaveBlade
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Re: Thoughts and ideas on restoring SY77.

Unread post by Studiostriver » Mon Sep 16, 2019 5:20 pm

Miks wrote:
Mon Sep 16, 2019 3:18 pm
Studiostriver wrote:I just wish I can find original size black screws to change because some got beaten terribly and wear off.
Maybe this shop can help...?

screwsandmore.de/en/product-range/black-screws/?p=1
Thank you mister. I now only need to find out which would fit to SY77.
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Re: Thoughts and ideas on restoring SY77.

Unread post by Miks » Mon Sep 16, 2019 11:17 pm

@ Studiostriver:

please DO check your PM's... 8)
My (key related) gear (in alphabetical order):
Ferrofish: B4000+
Kawai: K1 II
Korg: M1 (up'd to EX, w/ 'Cool Blue'), M1REX (w/ 'Cool Blue'), Poly-800
Roland: D-50, D-110, D-550, PG-1000
Yamaha: AW1600, DX7IID (w/ 'Cool Blue'), EX5R, RM50, RX5, SY99 (w/ 'Cool Blue'), TG500,
TX-802, YMM2
Sector101: SYEMB05 (5x), SYEMB06 (3x), EXFLM2 (1kit), MCD Sweet16 (1x), DataBlade32 (1x),
WaveBlade 8MB Card (1x) & 1x Programmer Unit for WaveBlade
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Re: Thoughts and ideas on restoring SY77.

Unread post by Studiostriver » Tue Sep 17, 2019 2:03 pm

I will. Thank you kindly. (Y)
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