Search found 107 matches

by dojoe
Tue May 31, 2016 11:23 am
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Call for beta testers

Ozricsfan wrote:I have a Roland A-90 (and JV-2080) if you can still use more testers.
Cool, thanks for volunteering! :) I'll get back to you as soon as I know the problems with the JVs are fixed.
by dojoe
Sun May 29, 2016 12:28 am
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Anarkand wrote:Still waiting to throw money after this project
Why wait? Throw to your heart's content, just don't expect a card back yet :lol:

Seriously, I'm glad you guys are still there. It's all taking its sweet time, but it will happen. Probably even before Christmas this year ;)
by dojoe
Sun May 15, 2016 11:04 pm
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

JD800 and TR626 - no issues so far. \o/ Thanks for testing and also thanks for the photos! Happy the card arrived safely and works well for you :) In other news, I met with baz99 today to figure out and measure the problems the JV series are having with the RevC cards. We had a nice play around wit...
by dojoe
Mon May 09, 2016 10:51 am
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Call for beta testers

I'll be more than happy to purchase a card to test with my Roland D70 Right now all the cards I have are in use for some testing, but I'll contact you if that changes - thanks for volunteering! hi..have you tested this card with roland r880? If by R880 you mean the GC-8 controller attached to it, t...
by dojoe
Sat Apr 23, 2016 4:16 pm
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Call for beta testers

Hello there! I would definitely like to be a tester as I have a Roland D-10. :) Hey, thanks for volunteering! =) Something came up with Joe50000's card that I have to investigate and I'll need the leftover card for that. But you're on the list =) Joe has problems formatting the RevC card in his JV ...
by dojoe
Wed Apr 20, 2016 12:58 pm
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Call for beta testers

oli wrote:I would love to purchase a card, and join in testing. I would like to use with a Roland R-880.
Congratulations, you got the job ;) I'll PM you about details.

One or two cards left, any takers? ;)
by dojoe
Sat Apr 16, 2016 10:14 pm
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Call for beta testers

So. All RevC cards are built and tested now. I hope I'll never have to solder one of these by hand again :roll: I have a few cards (two or three depending on tester responses) that I haven't assigned to anyone yet, so if you'd like to get your hands on a coveted prototype for less than the final sel...
by dojoe
Wed Apr 13, 2016 11:36 am
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Interesting card - I was wondering if this could be used to make sample cards as well, I designed one for the Yamaha RX5: https://www.retrokits.com/rk001.jpg Nice card, and nice case =) Check this page and the previous one -- we just discussed using the card as sample cards. Main problem is the lac...
by dojoe
Mon Apr 11, 2016 11:33 am
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Short update: Six of eight RevC cards have been built (new soldering station! yay! \o/) Zaichornok received a RevC card already (to verify the new design fixes the issues in his GC-8); probably testing as I type Three more cards are on their way to beta testers, two further testing inquiries have go...
by dojoe
Thu Apr 07, 2016 8:18 pm
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

To re-iterate the first post: This one's an actual beta tester that's having problems reaching me ;) Valentine, I got your PM now, and sent you my email address in response. I'll shove a few PMs into the queue after it; maybe that'll get the pipes unclogged ;) You could PM me your email too to make...
by dojoe
Mon Mar 14, 2016 11:23 pm
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Molex has some 170 pos .75mm pitch connectors. Quite expensive for a try (2 wires for 1 pin hack maybe?) Hmm, you mean like http://www.digikey.de/product-detail/en/amphenol-fci/10058835-1000LF/609-3133-ND/1855737 ? You might be onto something there =) The half pin pitch will make plugging an advent...
by dojoe
Mon Mar 14, 2016 8:33 pm
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Still, I couldn't find any edge card connector with 1.5mm pitch... I'm a noob in electronics anyway and only searched the web for a 34 pos. connector... Maybe there are connectors with more positions and 1.5mm pitch that could be used, but didn't find any on the web (hard to find the right words to...
by dojoe
Mon Mar 14, 2016 8:01 pm
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

I don't know anything about the U220, but at least on the JV-1080 the PCM card slot is physically different than the Data card slot, it's much shorter and the connector pins are narrower and much closer together. Also the JV-1080 PCM card slot can take PCM cards up to 2MByte (the SM shows 21 addres...
by dojoe
Mon Mar 14, 2016 10:46 am
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Edit: U-220 card bus is a bit wider: 19 bits address bus, hence 512KB ROM cards, but other 34 pins seem compatible with the card port you found on a D-20.. You can check it in the service manual, page 7 for the U-220 ( http://www.synfo.nl/pages/servicemanuals.html ) Wow, 19 bits -- they're re-using...
by dojoe
Sat Mar 12, 2016 4:57 pm
Forum: Gear Services & Other Goods
Topic: Custom-built multi-bank Roland M-256/M-512 memory cards
Replies: 466
Views: 200850

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

I've been thinking about making a USB reader/writer for these memory cards; as madtheory pointed out, my test jig can already do that. The real show stopper is the unavailability of matching card slots. If anyone can point me to a reliable source of inexpensive 34-pin card edge slots with 1.5mm pin ...