Archive of the former Yahoo!Groups mailing list: Discussion about the Korg PolySix synthesizer

previous by date index next by date
  topic list next in topic

Subject: no output except static and clicks!

From: "zumdar" <wbkennedy1@gmail.com>
Date: 2013-06-11

I have a problem with my Korg Polysix that I really need some expertise on. I'm playing a big festival this weekend and I need it for the gig!

I bought this Korg Polysix from Switched On Music in Austin, TX and shortly thereafter I started having battery leakage problems. The dudes at the store took it back and completely replaced the old KLM-367 board with the leakage on it with a completely new clone KLM-367 board. I received it back in January with the new KLM board so I don't think this new issue is due to battery corrosion.

Now the P6 won't output any real sound. I turned to volume pot up all the way and get some static and messed with every single knob and button and the only thing that I get is a weird clicking noise when I switch it to PWM mode and the clicking frequency changes with the PWM SPEED knob.

Other small things to note: The LFO led is completely lit now and won't respond to any adjustment made to the LFO SPEED knob.
Also (and this was actually a problem the last couple of times I played the synth), the effects SPEED/INTENSITY knob will effect the volume (which right now is just the clicking and static, but all last week it was effecting the total volume of the synth).

Does anybody have any places I should start with troubleshooting? I do have some intermediate synth repair knowledge and I can definitely make my way around these things, I just have never really learned how to start going about troubleshooting. Any suggestions would be supersupersuper appreciated! We are leaving in a few days, and we have practice everyday until then!!!

Thank you sooo much for any help you can provide, please bestow any wisdom on me o knowledgeable synth ones!

(time to go pour over the schematics and see if there is some link between all these things! ahhhhh!)