Analogue-sequencer

Robert,

> Did some more research. The Velo pots of step 1-7 seem
> stable. They just work.
>
> Velo pot 8 is stable when the velo value is > 25. The moment
> it hits the 25 value, I get interrupting messages from pot
> #9. Weird...

This smacks of a bad joint somewhere, it really does...
Check the IDC cable, make sure nothing is shorted..

Paul

> If it's the pot, we would have 2 bad pots now.  Both pot #9
> and #13 are still involved. Isn't it very unlikely to have
> two bad pots?

Yeah, it does seem a bit less likely.
Pot 9 is on 4051 input 0, and pot 13 is on input 4, which means there's only
1 bit on the address selection changing between them.
Paul M's reported problem & solution would back that up the theory that it
could be a dodgy connection on the address pin.
Maybe try some contact cleaner on the ribbon cables ?
Or swapping the cable plugs around - it is a bus type design, so any pot
board can use any connector.

Cheers,
Colin f



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Hi,

>>One reason why I sold all my Waldorf synths.
>
> Me too.... 8-(

its one of the reasons I never bought one..

Paul

on 19-01-2004 15:52, Colin f at colin@colinfraser.com wrote:

He Robert,

Try this kind of support with Waldorf...

:-))))

Boele

>> If it's the pot, we would have 2 bad pots now.  Both pot #9
>> and #13 are still involved. Isn't it very unlikely to have
>> two bad pots?
> 
> Yeah, it does seem a bit less likely.
> Pot 9 is on 4051 input 0, and pot 13 is on input 4, which means there's only
> 1 bit on the address selection changing between them.
> Paul M's reported problem & solution would back that up the theory that it
> could be a dodgy connection on the address pin.
> Maybe try some contact cleaner on the ribbon cables ?
> Or swapping the cable plugs around - it is a bus type design, so any pot
> board can use any connector.
> 
> Cheers,
> Colin f
> 
> 
> 
> ________________________________________________
> Message sent using UebiMiau 2.7.2
> 
> 
> 
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On Monday 19 January 2004 15:52, Colin f wrote:
> > If it's the pot, we would have 2 bad pots now.  Both
> > pot #9 and #13 are still involved. Isn't it very
> > unlikely to have two bad pots?
>
> Yeah, it does seem a bit less likely.
> Pot 9 is on 4051 input 0, and pot 13 is on input 4, which
> means there's only 1 bit on the address selection
> changing between them. Paul M's reported problem &
> solution would back that up the theory that it could be a
> dodgy connection on the address pin.
> Maybe try some contact cleaner on the ribbon cables ?
> Or swapping the cable plugs around - it is a bus type
> design, so any pot board can use any connector.

I have a new contender: step #11 now produces unwanted 
events, while #9 and #13 are still with us. That's three 
pots.

Did some more research. The Velo pots of step 1-7 seem 
stable. They just work. 

Velo pot 8 is stable when the velo value is > 25. The moment 
it hits the 25 value, I get interrupting messages from pot 
#9. Weird...

On Monday 19 January 2004 16:20, boele wrote:
> on 19-01-2004 15:52, Colin f at colin@colinfraser.com
> wrote:
>
> He Robert,
>
> Try this kind of support with Waldorf...

One reason why I sold all my Waldorf synths.

- Robert

On Mon, 19 Jan 2004 16:45:17 +0100, Robert van der Kamp
<robnet@wxs.nl> wrote:

>One reason why I sold all my Waldorf synths.

Me too.... 8-(

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