<div>I MV-8 may be a different version. From the little amount of info I have found, these models were produced around 1993 or 1994. I think this may have been purchased assembled by Paia. It has an 8 position DIP switch labelled 'mode/channel', a 'mode/aux' switch, 8 rca cv outputs, 8 cv inputs, 8 gate outputs, and 8 gate inputs. It's a MIDI to CV and a CV to MIDI...at least that's what it looks to be. I'm only reluctant to fire it up because I'm not sure how to test it's functionality. I'll experiment a little this weekend and get some photos up.
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<div>Thanks for the response, Dave. Perhaps these different models share a lot of similarities. If so, I'll try some of the mods.</div>
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<div> I contacted Paia so hopfully they will have some documentation for me soon.</div>
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<div>peng<br><br> </div>
<div><span class="gmail_quote">On 3/10/06, <b class="gmail_sendername">Dave Kendall</b> <<a href="mailto:davekendall@ntlworld.com">davekendall@ntlworld.com</a>> wrote:</span>
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<div style="DIRECTION: ltr">Hi.<br><br>I built a MIDI2CV8 a while back, and have been pleased with it. I can recommend adding a few additional circuits on a bit of perfboard though. <br><br>The pitch wheel centres at +5V (+5.33V on my board), with 0V at the bottom and just over 10V at the top. It's well worth fitting an offset /scaler circuit on the PB output, so that 0V is the "off" or centre position.
<br>All of the continuous controller outputs are stepped, or "zippery" if left with 0 to +10V range. There is a little diagram in the Paia construction manual showing how to get the pitch bend range down to a more musically useful range - doing this removes perceivable zipper noise. I wired my PB output to one sub-circuit giving a fixed ±2 semitones, and to another one with a pot for range, with a DPDT switch selecting between the two. Both had the offset set with multiturn trimmers.
<br><br>To get rid of zipper noise on the other CV outputs (e.g. in mode 1 you have Mod Wheel and Aftertouch CVs), use a simple lag circuit on the output of each, with the rate set so that when controlling, say, VCF cutoff, there is no audible zippering, but it has an acceptable control response. In practice, the slight control lag hasn't been a problem.
<br><br>It might be worth replacing the DAC trimmer with a multi-turn one, although fitting it to the board might be tricky for space/footprint reasons. <br><br>cheers,<br> </div>
<div style="DIRECTION: ltr"><span class="sg"><br>Dave</span></div>
<div style="DIRECTION: ltr"><span class="e" id="q_109e50a8bf1894d6_2"><br><br><br><br><br>on 9/3/06 22:07, megaohm at <a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:megaohm1@gmail.com" target="_blank">
megaohm1@gmail.com</a> wrote:<br><br>
<blockquote>Hi,<br><br>I just picked up a Paia MV-8 and I'm looking for documentation, schematics, any info, tips , and/or links. Any and all help will be greatly appreciated.<br><br><br>Thanks,<br>peng<br></blockquote></span>
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