Testing voices with arduino - do I need 5v to acc?

Hi guys

So i am working on my NAVA and things are going forward, but I would love to be able to test the individual voices one by one before i proceed.

I have an old Arduino lying around and I have set it up as described in this topic from the Yocto forum: viewtopic.php?f=16&t=179#p701

This is working as far as I can see on my oscilloscope.

I then connected the GND from the Arduino to the GND on my Nava, and the trig to the trig input on the SD voice on the PCB.
A quick test and there was no sound, but what I am thinking is that I need to connect 5V to the Acc input (close to the TRIG point on the PCB).. I am currently awaiting my MUX_SH board, and so I am not entirely sure it's a good idea to connect the 5V the Acc input - if it could damage anything or maybe it just doesn't work.
I also looked at this video for some guidance: https://www.youtube.com/watch?v=7vfHpRA8Lak but it's not possible to see all connections made.

So, what I am asking is, would it be a dangerous thing to connect the 5V coming from the PSU to the Acc point on the SD voice and then proceed with my testing method with the arduino and so on?

I can provide pictures and maybe this could end up being a sticky post for other newbies looking to see how they can test their individual voices.

Okay, apparently not so much knowledge here - I am beginning to build the sequencer now; I have two voices finished, but I really want to test them before I build the rest. Hopefully this won't blow anything up

Let me know if that is a bad idea - have only found one guy here on the forum who said he did and it was fine, so hope that is correct!

I built the whole IO board and sequencer, then I built each individual voice. This allowed me to test each voice as I went along. You can essentially follow the Yocto2 build guide (with some fairly obvious modifications).

Acetate wrote:I built the whole IO board and sequencer, then I built each individual voice. This allowed me to test each voice as I went along. You can essentially follow the Yocto2 build guide (with some fairly obvious modifications).

Cheers mate. I am proceeding. Have a little problem with GND on the master section, so awaiting some answers for now