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1200ma powersupply from A100p to drive Roland System 100m modules

2008-02-23 by David Bulog

> I have an idea to get specially made a 10hp/te module that will  
> have a 6 x  6 pin sockets so you can power some Roland 100m modules
ie it will be cool to use the Roland modules loose  without the huge  
191j chassis---
Has anyone tried anything like this with a 1200ma A100p


thanks Dave



> making a psu would be very simple, for example
> http://www.vellemanusa.com/us/enu/product/view/?id=522032
> together with a suitable transformer


http://www.soundonsound.com/sos/1995_articles/apr95/ 
rolandsystem100m.html

Should you manage to get hold of a module but haven't a rack to power  
it, there is a solution. If you can handle a soldering iron, then  
something like the Maplin +/-15v (100ma) PSU should suffice (part  
number LP88V). You need to make up a lead with an 8-pin DIN plug  
(part number FJ91Y -- see connections list below) at one end to  
supply the module. Warning! Don't attempt to connect a 100M module to  
anything other than a Roland rack unless you are confident that you  
won't damage the module with an incorrectly wired plug or PSU.  
Mistakes can be expensive.

System 100M 8-pin DIN plug connections are as follows:

� Pin 1 PSU +5v
� Pin 2 gate
� Pin 3 no pin
� Pin 4 LED +
� Pin 5 Trigger
� Pin 6 PSU -15v
� Pin 7 PSU ground
� Pin 8 CV
� Pin 9 LED ground

While we're on the subject, here are the connections for the 6-pin  
leads that link 100M racks to other racks or keyboards; use Maplin  
part number HH29G for the 6-pin plug. If you're linking racks, don't  
connect pins 1 and 2, but use all pins when connecting a 100M keyboard.

� Pin 1 PSU -15v
� Pin 2 PSU +15v
� Pin 3 gate
� Pin 4 trigger
� Pin 5 PSU ground
� Pin 6 CV

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