Korg Mono/Poly

Hi

As the others I assume the switch is faulty. You may test it by shorting 
the switch-contacts. You can do this either direct at the switch pcb, or 
  by shorting pin 3 and 4 of connector 9 at the VCO-board. Also the 
cable from the switchboard to connector 9 at the VCO-board may have 
become loose. Connector 9 is located between the pots for PWM-Intensity 
and PW-Width.

The Servicemanual is available at my site
http://fa.utfs.org/diy/korg_monopoly/index.html

Florian

lang_hat wrote:

> Hey MP4-users.
> Suddenly the "Effects on/off", on my MP4, has stopped working. The LED doesn't light and 
> the effects are not being activated. Its pretty annoying, since I love the effects. Its also very 
> weird - it just happened! And There hasn't been any troubles with it before. Any Ideas what 
> to do?    
> 
> 
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