Hi madrayken

>> 3) The clock-out seems to do nothing despite receiving clock signals
>>> from my sequencer (AFAIK).
>> Yes, that's the function of the clock out
> I'm confused. Its function is do nothing when it receives a clock
> tick from my sequencer The LED doesn't light What do people
> actually do with this output, then Is it only for the clock
> divider/sequencer module

Unfortunately "yes", but somehow also "no". ;-)

temposync-systems like MIDI-clock or DIN-Sync consist from two parts:
1.) the clock
2.) the action commands.

The clock usually runs all the time and provides the tempo.
The action commands say something like "Start", "Stop", "Reset" or
similar. In MIDI these are separated command words. In DIN-sync (which
is a two or four pole cable) there is a clock-line and (at least) a
Gate-line which says Start(=Gate On) or Stop (=Gate Off).

Unfortunately the A-190 does not output a Start/Stop Gate like DIN-Sync
would do, but it sends at the "Reset" output, an inverted version: it
goes low (=Gate Off) when receiving a MIDI-Start command; and it goes
high (=Gate on) when it receives a MIDI-Stop command.

To derive a Start/Stop-Gate like for the DIN-Sync you have to invert
this signal with an A-165 Trigger modifier (or A-166 Logic Module)

To derive a clock which does not run when MIDI-Stop is received (e.g for
an SH-101 sequencer or any arpeggiator clock in) then you have to feed
the A190 clock out to the I/O-input of an A150 VC-switch, control the
switch by the A190 reset output and pick the clock at the A150 on I/O2.

If you want to derive separated start stop triggers like for the A154 it
becomes very complicated... :-( You need the A165 trigger modifier and
an A166 Dual logic modul.
The A165 produces triggers at the end and(!) the start of the
Start/Stop-Gate. You need the two Gates of the A166 with different
AND-settings to enable the Start- and the End-trigger at separate outputs.

> Sorry - I should have been more specific. The only way I can get the
> portamento to start working is to first send a CC #65 (64-127), and
> then send CC #05 (to some value).
>
> I presume this is normal.

Yes.

Florian