> Okay...
>
> I think I'm starting to get this.....in terms of the LFO, the 144 only

responds

> to positive voltages

yes and no: you can add an offset with the manual control to the attenuated
external CV. If a bipolar (i.e. negative and positive voltages, e.g. from an
LFO) CV is used you have to add an offset to avoid the silence during the
negative part of the LFO wave (~ center position of the "Man. Morph."
Control). The attenuator of the CV input is adjusted to obtain the desired
behaviour. This can be silence at the max/min points of the LFO but even
max. audio level according to the setting of the attenuator. If a positive
CV is used (e.g. from an ADSR) the offset is normally set to zero.

In technical terms: Whenever the sum of the voltage generated by the manual
control and the external CV is zero or negative all CV outputs of the A-144
are zero. If the sum is in the range 0...+5V you are in the working area. If
the sum goes beyond +5V all outputs are zero again.

Best wishes
Dieter Doepfer