What is ISO cable? Regular MIDI one?
2 hours ago, Moulin said:
could it make sense to rewire the Midi plug instead of messing with the controller?
Which plug?
3 hours ago, Antichambre said:
What is ISO cable? Regular MIDI one?
Which plug?
jep, the regular 5 pin Midi one, however they are called 
Forget the other question, I did not understand the pin 2 shield thing first. I was just confused since I assume the normal Midi cables also have the ground on pin 2 so why would ground not be used? But meanwhile I got it.
Here is a normal MIDI interface schematic.
As you can see ground is only on pin 2 of the MIDI outputs.
I think your problem is that the chase bliss has no optocoupler input and doesn’t get the signal between the regular pin 4 and 5(between signal and 5V) but between 4 and 2(signal and ground).
if no ground is provided on pin 2 of your controller then the pin4(signal) has no reference.
Before open the controller check the continuity between midi out pin 2 and another ground, e.g. sleeve of the XPDL jack
If there’s nothing then open the enclosure and add it…
I checked the continuity of pin 2 on the Musicomlab and the sleeve of the plugged XPDL TRS. I get some ohms on the display. Looks like pin 2 is grounded???
Also I tried sending PC from the DAW to the CBA through my Audio interface. Doesn’t work. However it works with another pedal.
WTF!!!
So I don’t know.
Try to change the MIDI channel according to its MIDI manual.
8 hours ago, Antichambre said:
So I don’t know.
Try to change the MIDI channel according to its MIDI manual.
I think it is now evident that the problem is the missing opto-coupler.
Hey there,
I have a Meris Ottobit jr. I´d like to control.
First I used an Elektron Cycles which has 3.5mm Midi I/O. Using a TRS cable TX works (CC & PC).
For being able to TX/RX, I built the cable (as described by Bruno, with Pin 4 bridged).
Plugging that to my RME Fireface UC I get RX (from Pedal) but cannot TX!
Using a Behringer BFCF000 I can TX but get no RX!!
So I got myself an iConnectivity mioXL today - neither RX nor TX!!!
Taking the Elektron again for testing both RX/TX work with the built cable (but can´t use this as an interface).
Any ideas on that? …or is it just chance?
Thanks,
best
Tim
15 hours ago, tense said:
Any ideas on that? …or is it just chance?
On my side it works with a MOTU fastlane or both MTPAV(old and USB model)
I think there’s no rule, here I tried to find a workaround to avoid commercial boxes, I never said it will work without exception 
Still better to buy or build one of this active boxes, with optocoupler inside.
BR
Bruno
Ah, no complains from here!
Thanks for caring.
Seems like there exist a bunch of standard midi implementations.
Just ordered the Conduit - hope that works.
Best,
Tim
On 6/10/2022 at 10:36 PM, tense said:
Ah, no complains from here!
Thanks for caring.
Seems like there exist a bunch of standard midi implementations.
Just ordered the Conduit - hope that works.
Best,
Tim
Something you can do is using the shield as ground, some recent machines doesn’t provide GND on Midi out pin 2, there’s a chance shield is connected, this cable adaptation needs the GND to work properly.
There’s some explanation about it above in the thread.