Analogue-sequencer

> my PSU *does* output DC. i thought center positive was what was required,
> but i guess i was wrong. anyway, i rewired the power jack and woo hoo it
> lights up!!!!

Cool, that's a start...

> however, i'm unable to initialize the memory so it just sists there
> freaking out. the reason i can't do this is because the whole first column
> of keys on the function keypad is not working... i probably crunched some
> diodes (damn diodes again! :) when i was snipping out the tact switches to
> replace them with maplin switches. more ordering from mouser... hooray! :)

A single bad diode shouldn't take out the whole column.

> the other issue is that the step key LEDs do not light up at all... at one
> point, i did manage to get the P3 to do something, and pressing the switch
> did acutally switch modes... the step key LEDs were changing in an
> expected fashion. would problems on the keypad or with a lack of
> initialization cause this?

Sounds more like it could be wiring problems.
Difficult to tell from here...
Have you got a multimeter with a continuity tester ?
Check the continuity from the diode and LED terminals through the ribbon
cable to the drive resistors and input buffer. The pin-outs and schematics
are in the construction pages.

Cheers,
Colin f



________________________________________________
Message sent using UebiMiau 2.7.2

On Fri, 13 Aug 2004, Colin f wrote:

> A single bad diode shouldn't take out the whole column.

i took measurements with the multimeter, and though hard to pin down, the
measurements from the left column were significantly different from those
in the other two... i'm going to replace all the diodes just to make sure.

> Sounds more like it could be wiring problems.
> Difficult to tell from here...
> Have you got a multimeter with a continuity tester ?

i think so? :)

the orientation of the ribbon cable is all correct, i've triple checked
that.

> Check the continuity from the diode and LED terminals through the ribbon
> cable to the drive resistors and input buffer. The pin-outs and schematics
> are in the construction pages.

i will try that... thanks for your help! if this is the issue, could it be
that something is wrong with the IDC plugs attached to the cable?

also, the drive resistors are R6-13 or R14-17? and the input buffer is U12
or U13?

thanks!

bleep.
out.

---
http://leichenfeld.iuma.com
http://thirdwavecollective.com

hi all...

this link was sent to me on analogue heaven:

http://sound-on-sound2.infopop.net/2/OpenTopic?q=Y&a=tpc&s=215094572&f=4193088013&m=474100661&p=1

the creator of the zyklus music performance system responded to some
interest about this old device, and seems to be embarking on the creation
of something new. colin's name was mentioned as someone to contact...
someone who is doing new and innovative stuff with MIDI performance
hardware. that's for sure!

anyway, i thought others here would be interested... bill marshall (the
zyklus designer) seems very interested in the idea of having musicians
help spec this new system (tentatively called "improvisor") out.

sic 'em, nagle! :)

bleep.
out.

---
http://leichenfeld.iuma.com
http://thirdwavecollective.com

On Mon, 16 Aug 2004 13:47:12 -0500 (CDT), blip <bleep@waste.org>
wrote:

>the creator of the zyklus music performance system responded to some
>interest about this old device, and seems to be embarking on the creation
>of something new. colin's name was mentioned as someone to contact...
>someone who is doing new and innovative stuff with MIDI performance
>hardware. that's for sure!

Totally. Have you checked out the new events yet? Mind-blowing and,
consider this, a means of adding non-destructive variations during
performance - the base track can be unaltered and you can direct all
the frigging from another track. The Frig Track maybe. Hahar...

>anyway, i thought others here would be interested... bill marshall (the
>zyklus designer) seems very interested in the idea of having musicians
>help spec this new system (tentatively called "improvisor") out.
>
>sic 'em, nagle! :)

Consider them well and truly thussed.

Latin Scholar Paul
---
Paul Nagle / Soft Room Music
Email: paul@softroom.co.uk www.softroom.co.uk
                           www.BogusFocus.com

Paul,

> anyway, i thought others here would be interested... bill marshall (the
> zyklus designer) seems very interested in the idea of having musicians
> help spec this new system (tentatively called "improvisor") out.

I had a long play with Zyklus, read the first 5 pages of the user guide as
a 'get going' guide, and DAMN it rocks, the user interface looks odd, but
once you've played with it for about 5 minutes its instantly intuitive.
I would love to get hold of one, Bill Marhsall sure as hell knew what he
was doing with the code too, its rocksolid and does so many cool things.

Paul

I have a copy of Virtual Realities the 1991 album by the band Zyklus.
This was given to me by one of my customers who played on the album.
Basically it all boils down to large amounts of improvised trumpet
playing on top of a load of sequenced digital synths. I think they had
three Zyklus sequencers to do the stuff live. Modern Jazz... nice...

Tony

www.oakleysound.co.uk

Oakley Modular Synthesisers
Penrith, Cumbria, England

On Tue, 17 Aug 2004 10:01:16 +0100 (BST),
<Paul.Maddox.Mail-list@Synth.net> wrote:

>I had a long play with Zyklus, read the first 5 pages of the user guide as
>a 'get going' guide, and DAMN it rocks, the user interface looks odd, but
>once you've played with it for about 5 minutes its instantly intuitive.
>I would love to get hold of one, Bill Marhsall sure as hell knew what he
>was doing with the code too, its rocksolid and does so many cool things.

I always wanted one - its ability to interact with looping sequences
reminded me of Dr T's KCS (Open Mode) - the trouble was it was way too
expensive for me. But I keep watching the second hand ads..

Paul
---
Paul Nagle - SoftRoom Music - www.softroom.co.uk
          Bogus Focus Records - www.BogusFocus.com

Paul,

> I always wanted one - its ability to interact with looping sequences
> reminded me of Dr T's KCS (Open Mode) - the trouble was it was way too
> expensive for me. But I keep watching the second hand ads..

for me, the big nenefit is that you record a loop of say 1 bar long made
of 16th notes.
Then record 4 bars of chord progression and it automatically loops the
first sequence 4 times, neat or what!

Paul