Search found 28 matches

by DrSynth
Fri Apr 28, 2017 5:00 am
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

Does Yamaha have that file somewhere and they could post it for those that have the means to burn it? Absolutely. Are they going to? That has about the same possibility of happening as the second appearance of Christ taking place tomorrow.


Do not lose the faith, brother ! :) :)

Manny
by DrSynth
Sun Apr 23, 2017 3:48 am
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

You just never know -- they may have documented & fixed the bug, but it's possible none or few went out -- remember Yamaha only sent out the upgrades as purchased/requested and if no units from late in production shipped from the factory with it installed it could be verrrrry rare. Manny BTW -- ...
by DrSynth
Sat Apr 22, 2017 1:56 am
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

I've never seen a 1.30 Seq ROM in the wild, so as Miks suggested, maybe a typo on that website given there is no entry for release date.

Anyone on this thread/forum actually have the 1.30 Sequence ROM in their SY99?

Manny
by DrSynth
Fri Apr 21, 2017 5:51 pm
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

The stuff I've been testing with I've been getting off eBay. Prices are all over the place, but if you just need one $50 (from a seemingly reliable vendor here in the states) is less than Yamaha charged. http://www.ebay.com/itm/252332575349?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3...
by DrSynth
Fri Apr 21, 2017 6:26 am
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

Gentlemen, Awesome news, we have success! I received Brian's burn of Mik's CPU data to the HD6475328CP10 Chip, combined it with the EPROM data of Mik's that I burned & tested previously - and voila' - SY99 upgraded from 1.40 to 1.57 ! So as long as the CPU is socketed (PLCC84), any SY99 should b...
by DrSynth
Sat Apr 15, 2017 6:09 pm
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

Miks, Yes - that picture is definitely worth a thousand words, confirming the CP10 will work. Just waiting for Brian's CPU to arrive to test ... since it's burned from the dump of your CPU's code, optimism is high. I've already confirmed the EPROM portion of the 1.57 firmware, so if Brian's burn of ...
by DrSynth
Sat Apr 15, 2017 4:13 am
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

As Alice would say, things are curiouser and curiouser.... I just got an SY99 off eBay, with v1.40. opened it up and this is the CPU chip: IMG_7907.JPG So, a different CPU chip series - 643 series vs 647 series - than what I've seen previously -- really can't wait to try the CPU Brian is sending me ...
by DrSynth
Mon Mar 27, 2017 7:57 pm
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

Miks,

Many thanks. I've ordered the chips and a burner. I'll keep everyone posted. Fingers crossed!

MAnny
by DrSynth
Mon Mar 27, 2017 6:29 pm
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

Miks, Do you have the CPU code dump? I've been talking to Brian (Sector 101), he advises against trying to use the cheap & available CP10 version of the chip as the clock max is too slow for the SY99. But there is also a H8/536 16MHz version available that is cheap enough ($20 on eBay) to try as...
by DrSynth
Mon Mar 27, 2017 4:46 am
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

Well, FWIW, the CP10 is available on eBay for $10- $50. Overclock?!? ;)

Manny
by DrSynth
Sun Mar 26, 2017 4:34 pm
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

Brian, That's very interesting, as that "CP10" version of the CPU does appear to be available though cost still unknown. I filled out quote request forms for two vendors and awaiting responses. It would be wonderful if that chip would function as replacement for the "CP12" that's...
by DrSynth
Sun Mar 26, 2017 5:46 am
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

I figured the chances were slim and none on the CPU, not giving up yet.

Manny
by DrSynth
Sat Mar 25, 2017 10:22 pm
Forum: Yamaha SY99 Forum
Topic: Musitronics 5MB RAM Expansion - anyone?
Replies: 5
Views: 644

Re: Musitronics 5MB RAM Expansion - anyone?

I've contacted Musitronics again about a small (4-6 unit) run of 5MB expansions. They are looking into fabrication costs of the PCB's and have said they'll get back to me in about 2 weeks. I'm looking for others interested if it comes close to the original EUR 299. I know that might be a little stee...
by DrSynth
Sat Mar 25, 2017 10:04 pm
Forum: Yamaha SY99 Forum
Topic: Begging for ROMS
Replies: 130
Views: 14416

Re: Begging for ROMS

Revisiting this -- I am determined to get Musitronics to produce a small run of 5MB expansion kits and I know there are some out there who might be interested but still have the older firmware. Thus I spent some time swapping chips between my two SY99's to help answer the need for the CPU question. ...
by DrSynth
Sat Sep 19, 2015 6:12 pm
Forum: Yamaha SY77
Topic: Hack the Wave card slot/format to enable custom samples/PROM
Replies: 331
Views: 30666

Re: Hack the Wave card slot/format to enable custom samples/

i use awave studio it has a good auto loop feature Yes, AWAVE is pretty comprehensive, and well worth a look at. It also has comprehensive support for all sorts of file formats (including Yamaha sample files) that the "big boys" would not bother with. They also have an experimental versio...

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