Hello

> 1) Is the A-190/AD5 combination supposed to send gate and CV
> information to both rails, or just the one they are attached to

Just to the one it is attached to.

> 2) If the AD5 was dead, would that result in a totally inoperative A-190

Yes

> 3) If the A-190 were dead, would that result in the oscillators on the
> same rail receiving stupidly low CV information

Yes this might be - but I never tested it ;-).


I definitely subscribe the recommendation of Derek. Learn a little bit
more about electronics and learn to handle a voltmeter.

Florian