All about the Roland Jupiter-series

-----Original Message-----
From: sweetness [mailto:digitallucid@...]
Sent: Sunday, February 18, 2001 6:57 AM
To: analogue@...; Andrew Simper
Subject: [AH] FW: JP6: ext in


> 
> I think the external input mod should also be documented. I did this and
it
> is bloody brilliant. When the jack isn't plugged in you get the regular
> noise signal, when it is you get to process audio through the amp and
> filter.

-----------
> 
> I could have sworn I found this years ago on Music Machines but I don't
see it
> there anymore... Here is the mod:
> 
> There's one noise generator for all the voices located (conveniently) on
the
> jack board. Pull out the Patch Shift jack, flip it over and solder on
three
> wires: Ground, tip to the op-amp side of R47 (one leg of which I pulled
out),
> and connect the switch to the hole (the output of the noise circuit).
> 
> R47 is the resistor on the jack board thats located right in front of the
> white 3-wire connector that goes to the XLR jack...
>
> The external signal now replaces to Noise waveform on VCO-2. It might
actually
> better to put in a switch so you could switch btw noise and external...
You
> also won't be able to use the Patch Shift jack as patch shift anymore (not
a

> big deal to me)...
> 
> Doug