Is it possible to blow out gate outputs on your Midibox CV? I’ve been using mine for about 5 years (AOut version), and I built a new ADSR yesterday (http://electro-music.com/forum/viewtopic.php?t=54641) and when I went to go test it it seems to have blown out the gate on my midibox CV i was testing it with. I tried a different gate output and that’s dead now too. I was using one of the gates off of J5 that come directly off of the PIC.
I don’t see any voltage on the gate input from the module, the only thing I can think of is that the module was in my new cabinet and it runs off of a different power supply. Maybe there was a ground differential between the two cabinets? Any Ideas? I’m stumped.
Can anyone think of a way to fix this? Should I have put some sort of protection in place on my gate outputs?
Protection: yes, definitely. The two systems used are buffers/level shifters (also gives you a +5 V logic level in the case of newer Core modules) and 220R resistors for short circuit protection.
First, if you use differen PSUs you have to connect all grounds.
Just some obvious stuff to consider:
Are the outputs really dead? Have you checked with a different ADSR? Maybe it´s just with the new module?
Is the MBCV listening on the correct midi channel?
Are you using the two gates on the MAX-Chips? If they are really blown you can switch to using the 8 Outputs provided by the core.
If you are using the Gate-outs from the core, you might need a new pic… or use the 2 Gate outs from the AOut-module instead and still haVE ll 8 Gates…(hope you haven´t blown Gate 3-8 by now)