> My a-152 only works in the last 4 steps.
> It doesnt goes to,the first ones at all.
> Maybe i should try and replace ome of the ic's
>
> Cheers,
>
> Dennis

Maybe the processor is defective (one address line not working) but that's
only a guess. You may replace the processor but I cannot guarantee that this
will solve the problem. Even if one of the DG408 multiplexers has a short
circuit the same symptom would occur. I'd recommend to send in the module
for repair.

Best wishes
Dieter Doepfer