Questions to Jack wiring and positional sensing board

[Spectre]

Hello Megadrum-Forum,

recently I got the Full Megadrum ARM Kit and the positional sensing board from Dmitri.
I already build it in a case, which was a lot of work (pictures will follow)

But now I have to wire the input jacks. And the more I am reading here, the more confused I am.
Maybe you can help me a bit, by answering a few question.

I am refering to the newest instruction manual:
http://www.megadrum.info/sites/default/ ... manual.pdf

It it right, that I have to wire head/bow to ring and rim/edge to tip?
I would made it intuitively the other way round, for instance if you
connect a mono-pad with a mono-cable it would connect to rim and not to
head. Because a mono-jack in a stereo-socket only tip and sleeve are
connected. (ring and sleeve are short circuited.)
And I saw megadrum schematics (or instruction manuals) here which are the other way round ( Head to Tip and Rim to Ring).

On which inputs is positional sensing possible?
Here: viewtopic.php?f=3&t=1215&start=120
Dmitri wrote, that at the arm megadrum module positional sensing is possible an all even inputs.
But that makes noch sense to me.
Because in the instruction manual all even inputs are rim imputs.
For example an page 7:
Input 33 is Snare Head (odd number)
Input 34 is Snare Rim (even number).

Did I get something wrong?

Thanks for your help.
Greetings

[airflamesred]

'Even numbers' refers to the MD/MDM input number which is different from the actual pin numbers. So snare head, 2, is wired to pin 33. Snare rim (3) is wired to pin 34.
It's an extra step of translation but, I suppose, it would display rather oddly if just using the pin numbers.

[dmitri]

It it right, that I have to wire head/bow to ring and rim/edge to tip?

No. Where did you get this? Head/bow goes to tip and rim/edge goes to rim.

On which inputs is positional sensing possible?

On inputs 4, 6, 8, 10 and 12. Inputs numbers are different from pin numbers of the main/positional board. "MegaDrum kit - instruction manual" shows what inputs go to which pins and also an example wiring of input jacks.

[Spectre]

No. Where did you get this? Head/bow goes to tip and rim/edge goes to rim.

I get this from the jackplug symbol in the instruction manual.

Look at the attachment to this post.
I made a screenshot from the instruction manual and one from the wikipedia article about jack plugs.

jack2.jpg

jack1.jpg

So in that definition of how to read this jackplug-symbol: "The upper connector is the tip, as it is farther away from the sleeve." in the instruction manual Tip is Pin 34 and Ring is Pin33.

On inputs 4, 6, 8, 10 and 12. Inputs numbers are different from pin numbers of the main/positional board. "MegaDrum kit - instruction manual" shows what inputs go to which pins and also an example wiring of input jacks.

Where in the instruction manual can I see what pin goes to what input?
Because on page 6 of the instruction manual there is online Pin Numbers, but no Input Number.
Ok, Toms have numbers (Tom1, Tom2, ,...) and Aux have numbers (Aux1,Aux2,...,Aux19)

But where can I read the Input Number for Snare, Hihat, Bassdrum, Crash, Ride?

[airflamesred]

The input numbers are shown on the MD screen as you scroll through and also on the MDM pad screens

Kick (1) pin 37
hihat (2+3) pins 36 and 35
snare (3+4) pins 34 and 33 etc

Page 9 of the instruction manual has the more useful snare H (33), snare R(34) notation..

[Spectre]

Ok, thanks a lot.

So I connect Head to Tip and Rim to Ring and in that order as in the instruction manual, then everything will be fine

[airflamesred]

Well, I believe so. Just wire one and try it.

Be careful, my first attempt and I didn't pay close attention and wired 40 inputs with the head and rim reversed!

[dmitri]

No. Where did you get this? Head/bow goes to tip and rim/edge goes to rim.

I get this from the jackplug symbol in the instruction manual.

Look at the attachment to this post.
I made a screenshot from the instruction manual and one from the wikipedia article about jack plugs.

jack2.jpg

jack1.jpg

So in that definition of how to read this jackplug-symbol: "The upper connector is the tip, as it is farther away from the sleeve." in the instruction manual Tip is Pin 34 and Ring is Pin33.

I checked the manual and I see Snare tip going to pin 33 and Snare ring going to pin 34. Where did you see it reversed?

On inputs 4, 6, 8, 10 and 12. Inputs numbers are different from pin numbers of the main/positional board. "MegaDrum kit - instruction manual" shows what inputs go to which pins and also an example wiring of input jacks.

Where in the instruction manual can I see what pin goes to what input?
Because on page 6 of the instruction manual there is online Pin Numbers, but no Input Number.
Ok, Toms have numbers (Tom1, Tom2, ,...) and Aux have numbers (Aux1,Aux2,...,Aux19)

But where can I read the Input Number for Snare, Hihat, Bassdrum, Crash, Ride?

In the table on page 7. Kick is input 1, HiHatB is input 2, HiHatE is input 3 and so on, just as they are numbered in MegaDrum configuration in the Menu or in MDM.

[Spectre]

I checked the manual and I see Snare tip going to pin 33 and Snare ring going to pin 34. Where did you see it reversed?

I think we are both reading the symbol of the input jack a bit different.
As I think, and as the wikipedia article says: "The upper connector is the tip, as it is farther away from the sleeve."
So I would interprete the input jack symbol like this:

jack3.jpg

In my imagination this reassembles a real input jack, like this:

jack4.jpg

In the table on page 7. Kick is input 1, HiHatB is input 2, HiHatE is input 3 and so on, just as they are numbered in MegaDrum configuration in the Menu or in MDM.

oh, now I see it.
Maybe in the next revision of the instruction manual it would be better, to make an addition column on page 6.
That would be a lot better to understand.
Because the numbering of the pins goes in the opposite direction as the input numbers.

[dmitri]

As I think, and as the wikipedia article says: "The upper connector is the tip, as it is farther away from the sleeve."

It misled you. Tip is the pin which is furthest from sleeve. It just happened so that the furthest connector in the wikipedia diagram is at the top but if it were flipped upside down it would have been at the top but it would still be the furthest from the sleeve.