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Alternatives for MV8-OP1 (Hacking project.)
Posted: 08:38, 17 May 2015
by Seccione
Hi guys,
Out of frustration for not being able to find a MV8-OP1 board, I started thinking of using some other output board as a replacement.
I haven't found full schematics for the MV8-OP1, but based on the clues in MV-8800 service manual, I have kind of an idea what to look for.
So, I peeked at the schematics of SP-808, and it looks like it's SP808-OP1
might be compatible with MV, with just a small tweaks. (DAC clock speed, cabling)
I made a topic to
Gearslutz about my findings, but no one seems to be interested. :D
Has anyone here tried something similar?
Is there any other output expansion boards (from Roland) that could be investigated?
All input appreciated!
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 00:49, 20 May 2015
by JUKE179r
I'll continue following your progress Seccione. Good Luck!
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 04:25, 20 May 2015
by Seccione
Cheers, mate!
Relieved to see that I'm not the only one without the expander... :/
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 21:30, 21 May 2015
by waxdat
I would start at getting a digital input to work. If you can get that to work then you can move on. The digital/optical input is the most important part of the MV8-OP1.
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 05:15, 22 May 2015
by Seccione
Digital input is challenging, because I don't the specs how MV8-OP1 does it.
I'm certain that the sync clock in SP808-OP1 is configured differently, but without schematics for MV8-OP1 it's about rolling dices.
Analog multiouts are relatively simple to get working, so I'll treat that as a 'proof of concept'.
Once ("if") I get something working, it should be easy to get the rest. Maybe.
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 17:14, 3 June 2015
by Seccione
Ok, I actually got this working!
The strange wire-thingy on the top-right corner is the modification I had to make to configure DA converters to be compatible with the MV. :D
Now I have 6 extra output in my MV, and I paid like 90€ for it!
At some point I might check out if I could get the digital i/O to work, but those analog outs was the thing I was looking for.
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 00:11, 4 June 2015
by JUKE179r
Duuuuuuuude! You Rock! Good Job Seccione!
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 02:40, 4 June 2015
by waxdat
That's some serious surgery there Doc. Good shit!
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 06:15, 5 June 2015
by Jack TripHop
This is REALLY cool!!!
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 23:44, 5 June 2015
by JUKE179r
Here you go Seccione… Merry Christmas…
Manual - MV-8000 SM MV8-OP1.pdf
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 05:17, 6 June 2015
by Seccione
:O Omg, where on earth did you find this? I was sure I searched the whole internet for this!
Thank you for sharing this!
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 20:50, 17 June 2015
by Blakk_Heart
It looks like the only shot I have at getting this feature for my MV 8800 hinges on how successful you are with this hack. Good luck.
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 05:38, 18 June 2015
by Seccione
As mentioned above, the analog outputs are already working.
I haven't had time to work this further, but the next thing I'll do it to make the 'hidden' third MIDI-output somehow usable.
(I'm using my MV as the master sequencer to control other gear.)
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 05:45, 19 June 2015
by Blakk_Heart
You don't think you'll take a shot at the digital input? That's the goodie in my opinion.....
Re: Alternatives for MV8-OP1 (Hacking project.)
Posted: 11:48, 19 June 2015
by DJFLEX-mk2
**YAY** !!!
Thanks to by
JUKE179r » Fri Jun 05, 2015 6:44 pm
**FOR THE PDF ~
SERVICE NOTES: MV-8000 & MV8-OP1_SN - NOV.2003**
Manual - MV-8000 SM MV8-OP1.pdf
THANK YOU VERY MUCH !!!!!!!!!!!!!!!! :)