[sdiy] Polysix repair question

[Sowa Roman]

Sometimes battery leak can break traces in this way that
DAC for control voltages is updated semi-randomly, and
voltage going to analog circuitry is looking like S&H
at hight rate. I have P6 that does that.
In fact I don't really want to fix it, because I kinda like
the distortion.

Another thing, probably non-related. I got once a synth for
repair. User said it only buzzes and makes noisy sounds.
It turned out it was modified for 220V and label still said
110V, so he used 220/110 convertor and poor synth didn't
get enough juice

Roman

""-----Original Message-----
""From: Dave Magnuson [mailto:resfreq at hoohahrecords.com]
""Sent: Sunday, May 05, 2002 4:02 PM
""To: synth-diy at dropmix.xs4all.nl
""Subject: [sdiy] Polysix repair question
""
""
""Hi List,
""
""Someone is sending me a Polysix for repair.  He says that all 
""voices seem
""badly distorted when playing.  I'm guessing that since this 
""occurs on all
""voices that it will probably not be VCO, VCF or VCA problem.
""
""Instead I plan to check powersupply, output section and 
""effects section for
""problems.  Does anyone have any other ideas of what to look 
""for?  IIRC the
""battery leakage usually damages the control circuitry, not 
""audio... or am I
""mistaken?  
""
""Any insight on where else to look would be great.  Don't know 
""if this is a
""common fault or not.  I'll keep the list informed on my 
""progress when it
""finally shows up at my door.
""
""Thanks!
""
""Dave
""
""
""
""Resonant Frequency:
""resfreq at hoohahrecords.com
""http://www.hoohahrecords.com/resfreq/index.html
""
""
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