Modular osc problem

airbag76

New member
Hi

I have a Roland System 100M synth and few days ago I performed a few tests on my OSC module. The results
especially in the lower scales in my opinion are problematic and I wonder if is there anything I can do about it.
To be more specific none of the available square, saw and triangle are depicted correctly in my oscilloscope.
I am uploading some pictures just to have a clue of what I m talking about

any help would be much appreciated
 
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