Hello Joachim, Thank you for those explanations. Indeed, i forgot about the +rail voltage.But i guess i can adress that with some cardboard put between the rail and the tail connection of the board?
Actually my primary intend was to simply disconnect the output as you suggest, but i realized today that i could also disconnect one of the last voice M board from the system to get a few spares and then being able to isolate the bad IC in the other voice card, much quicker than hunting for one online, or locally here in Italy.
So i guess it means that i would need to properly disconnect this board from any supply -15/+15v voltage, but even if i manage to do so, what about the other 'communication' connection (with SH, KAS...)? Is it safe to let a voice card in the system, even though it is decoupled from the supply voltage ONLY?
Or should i completely unsolder all the wires from it?
I saw a post here of David Rogoff talking about jumpers in the KAS... i dont know how to locate those jumpers yet, but is is the proper procedure?
Thank you
