<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Check with Paul Morte at <a href="mailto:PMTS@pacbell.net" class="">PMTS@pacbell.net</a><div class=""><br class=""></div><div class="">He is the Service Centre N. American manager for Yamaha.</div><div class=""><br class=""></div><div class="">regards,</div><div class=""><br class=""></div><div class="">Terry<br class=""><div><blockquote type="cite" class=""><div class="">On Jan 17, 2017, at 2:23 PM, Mattias Rickardsson <<a href="mailto:mr@analogue.org" class="">mr@analogue.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hi,<br class=""><br class="">have you checked the waveform selector and the volume potentiometer<br class="">for the VCO? If any one of them is broken or glitchy, the VCO can seem<br class="">dead.<br class=""><br class="">My recommendation would be: First check the above and/or probe the VCO<br class="">with an oscilloscope to ensure that it's really dead, then look for<br class="">the rare replacement chip. :-)<br class=""><br class="">/mr<br class=""><br class=""><br class="">On 17 January 2017 at 23:05, David Bulog <<a href="mailto:d2ba@xtra.co.nz" class="">d2ba@xtra.co.nz</a>> wrote:<br class=""><blockquote type="cite" class="">Hi all<br class=""><br class="">Looking for 1 x stock Yamaha part IG00153<br class="">(Description VCO) to repair my CS-15 —VCO2 is not working when i received<br class="">synth from Japan<br class="">as VCF2 and EG2 is ok —i can test by sending VCO1 there<br class="">I assume i must have dead VCO so wish to get this part before taking to my<br class="">tech<br class=""><br class="">thanks un advance<br class="">Dave<br class=""><br class="">_______________________________________________<br class="">Synth-diy mailing list<br class=""><a href="mailto:Synth-diy@synth-diy.org" class="">Synth-diy@synth-diy.org</a><br class="">http://synth-diy.org/mailman/listinfo/synth-diy<br class=""><br class=""></blockquote><br class="">_______________________________________________<br class="">Synth-diy mailing list<br class=""><a href="mailto:Synth-diy@synth-diy.org" class="">Synth-diy@synth-diy.org</a><br class="">http://synth-diy.org/mailman/listinfo/synth-diy<br class=""></div></div></blockquote></div><br class=""></div></body></html>