OldSynths

Howabout the trimpot in there for PWM calibration or pulse width (VR2?). 
  I have an Odyssey whose 50% duty cycle was more like 10% because of 
this.  Just an idea.  Otherwise someone would probably have to chase it 
down with a scope.

Mike Schultz

xogenus prototype development
70 george st. 3rd floor
ottawa.ontario
613.241.5862


Rory Mc Donald wrote:
> Maybe a bad capacitor? synths that old often have leaky caps.
> I am not a repair guy but something to check...
> Rory McDonald
> Oldsynths Moderator
> 
> 
> On Jul 6, 2004, at 11:33 PM, oxygeno1313 wrote:
> 
>     Hi,
> 
>     I have a Roland SH-101, but the SQUARE wave output sounds very tiny
>     compared with the SAW and SUB OSC output, i had the same problem with
>     a SCI Pro-One long time ago, but that was only that was un-
>     calibrated. I tought could be the same problem, but everything it's
>     ok, the scale and tune are fine. I checkd the pin ouputs of the
>     CEM3340 and seems to be fine, also i tested with other 3340's but
>     nothing,  anyone have a clue ?
> 
>     Thanks,
> 
>     Akira
> 
> 
> 
> 
> 
> 
> 
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