Doepfer

Hello everybody. I'm a totally newbie and just assembled my 
A-100 mini system this week. It has a A-190-2, A-110, A-106-1, A-145, A-132-3 and A-140 assembled on a Tiptop Happy ending kit.

I tried to send a gate output from the A-190-2 midi interface to the A-140 ADSR gate input but nothing happened. I connected the A-145 LFO to the A-140 and then it's 'ADSR Contr.' light turned on. The 'ADSR Contr.' light also turned on when it received signal from the waveforms output from the VCO. Is there another way to trigger the A-140? Maybe the 190-2 gate output is faulty?

I followed the "Simple synthesizer standard patch with one envelope generator" diagram from page 11 of A-190-2 (since it is a very similar system as mine except for the different filter module) but could not get a sound from it. 

I just removed the two jumpers from A-190-2 and the junper from A-140 but nothing changed. 

Thank you,

Sidney H.