No, it isn't related with the speed of the MG. Once I repaired another KLM-367A board which produced a high speed modulation in the sound, I replaced IC30 and the problem was solved. But this time I've replaced IC30 and IC31 and the slow modulation remains. All other functions are ok.
--------------------------------------------
El lun, 10/8/15,
backshall1@bellsouth.net [PolySix] <
PolySix@yahoogroups.com> escribió:
Asunto: Re: [PolySix] VCOs slightly modulated due to battery board malfunction
Para:
PolySix@yahoogroups.com Fecha: lunes, 10 de agosto, 2015 20:32
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
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