Discussion about the Korg PolySix synthesizer

Does it change with the MG speed control or does it seem unrelated to the MG?
Don B.

From: mailto:PolySix@yahoogroups.com 
Sent: Monday, August 10, 2015 2:15 PM
To: PolySix@yahoogroups.com 
Subject: [PolySix] VCOs slightly modulated due to battery board malfunction

  
Hi again. This time I have a Polysix whose VCOs are always modulated by a very slow sine or triangle wave. Of course all modulation controls in the panel and mod wheel are at zero value. If I change the battery board using a good one, the modulation disappears, so it is clearly a problem of the KLM-367A. Do you know what parts should I check?. Thank you for your help.

Kind regards

Manuel