Discussion about the Korg PolySix synthesizer group photo

Yahoo Groups archive

Discussion about the Korg PolySix synthesizer

Archive for polysix.

Index last updated: 2026-03-30 01:17 UTC

Thread

KLM-366B Replacement

KLM-366B Replacement

2015-12-15 by atoneontail@gmail.com

Hey gang,


Just got my Polysix back from the tech, one of my voices is dead, thought it might have been the chip. And my LFO to VCO and pitch bend were not working as well. Thought it might have been a simple connection problem. But it seems that it was neither. In fact the tech said that a lot of traces were pulled out, I guess this happened when the Polysix was being fixed from a previous battery leak before I bought, and that there is still corrosion on the KLM-366B board hence my voice problem and problem with the LFO to VCO. 


He suggested that I would need a new voice board, the KLM-366B. And I was hoping this group could help lead me in the right direction in finding a replacement board seeing as how they seem very hard to come by. Thanks for your time!


-Brady

Re: [PolySix] KLM-366B Replacement

2015-12-16 by Florian Anwander

Hello Brady

The battery leakage does not happen on the voiceboard, but on the CPU
board. If traces are missing, they can be replaced by wires. Especially
as only one voice is affected, there are only a few potential traces.

Instead of replacing the board, I'd replace the technician.

Sorry.

Florian

Re: [PolySix] KLM-366B Replacement

2015-12-16 by Dennis Matana

LOL!!!
 
 
                           



On Wednesday, December 16, 2015 8:56 AM, "Florian Anwander fanwander@mnet-online.de [PolySix]" <PolySix@yahoogroups.com> wrote:


 
Hello Brady

The battery leakage does not happen on the voiceboard, but on the CPU
board. If traces are missing, they can be replaced by wires. Especially
as only one voice is affected, there are only a few potential traces.

Instead of replacing the board, I'd replace the technician.

Sorry.

Florian


Re: [PolySix] KLM-366B Replacement

2015-12-16 by Bob Grieb

I was thinking the same thing yesterday. If there is damage from the battery leak
on the KLM-366B board, it's likely to be relatively minor, and much easier to fix than
trying to find a whole new board. It's the KLM-367 that takes the biggest hit.

Bob


--------------------------------------------
On Wed, 12/16/15, Florian Anwander fanwander@mnet-online.de [PolySix] <PolySix@yahoogroups.com> wrote:

Subject: Re: [PolySix] KLM-366B Replacement
To: PolySix@yahoogroups.com
Date: Wednesday, December 16, 2015, 2:56 AM


 









Hello Brady



The battery leakage does not happen on the voiceboard, but
on the CPU

board. If traces are missing, they can be replaced by wires.
Especially

as only one voice is affected, there are only a few
potential traces.



Instead of replacing the board, I'd replace the
technician.



Sorry.



Florian











#yiv6752333481 #yiv6752333481 --
#yiv6752333481ygrp-mkp {
border:1px solid #d8d8d8;font-family:Arial;margin:10px
0;padding:0 10px;}

#yiv6752333481 #yiv6752333481ygrp-mkp hr {
border:1px solid #d8d8d8;}

#yiv6752333481 #yiv6752333481ygrp-mkp #yiv6752333481hd {
color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px
0;}

#yiv6752333481 #yiv6752333481ygrp-mkp #yiv6752333481ads {
margin-bottom:10px;}

#yiv6752333481 #yiv6752333481ygrp-mkp .yiv6752333481ad {
padding:0 0;}

#yiv6752333481 #yiv6752333481ygrp-mkp .yiv6752333481ad p {
margin:0;}

#yiv6752333481 #yiv6752333481ygrp-mkp .yiv6752333481ad a {
color:#0000ff;text-decoration:none;}
#yiv6752333481 #yiv6752333481ygrp-sponsor
#yiv6752333481ygrp-lc {
font-family:Arial;}

#yiv6752333481 #yiv6752333481ygrp-sponsor
#yiv6752333481ygrp-lc #yiv6752333481hd {
margin:10px
0px;font-weight:700;font-size:78%;line-height:122%;}

#yiv6752333481 #yiv6752333481ygrp-sponsor
#yiv6752333481ygrp-lc .yiv6752333481ad {
margin-bottom:10px;padding:0 0;}

#yiv6752333481 #yiv6752333481actions {
font-family:Verdana;font-size:11px;padding:10px 0;}

#yiv6752333481 #yiv6752333481activity {
background-color:#e0ecee;float:left;font-family:Verdana;font-size:10px;padding:10px;}

#yiv6752333481 #yiv6752333481activity span {
font-weight:700;}

#yiv6752333481 #yiv6752333481activity span:first-child {
text-transform:uppercase;}

#yiv6752333481 #yiv6752333481activity span a {
color:#5085b6;text-decoration:none;}

#yiv6752333481 #yiv6752333481activity span span {
color:#ff7900;}

#yiv6752333481 #yiv6752333481activity span
.yiv6752333481underline {
text-decoration:underline;}

#yiv6752333481 .yiv6752333481attach {
clear:both;display:table;font-family:Arial;font-size:12px;padding:10px
0;width:400px;}

#yiv6752333481 .yiv6752333481attach div a {
text-decoration:none;}

#yiv6752333481 .yiv6752333481attach img {
border:none;padding-right:5px;}

#yiv6752333481 .yiv6752333481attach label {
display:block;margin-bottom:5px;}

#yiv6752333481 .yiv6752333481attach label a {
text-decoration:none;}

#yiv6752333481 blockquote {
margin:0 0 0 4px;}

#yiv6752333481 .yiv6752333481bold {
font-family:Arial;font-size:13px;font-weight:700;}

#yiv6752333481 .yiv6752333481bold a {
text-decoration:none;}

#yiv6752333481 dd.yiv6752333481last p a {
font-family:Verdana;font-weight:700;}

#yiv6752333481 dd.yiv6752333481last p span {
margin-right:10px;font-family:Verdana;font-weight:700;}

#yiv6752333481 dd.yiv6752333481last p
span.yiv6752333481yshortcuts {
margin-right:0;}

#yiv6752333481 div.yiv6752333481attach-table div div a {
text-decoration:none;}

#yiv6752333481 div.yiv6752333481attach-table {
width:400px;}

#yiv6752333481 div.yiv6752333481file-title a, #yiv6752333481
div.yiv6752333481file-title a:active, #yiv6752333481
div.yiv6752333481file-title a:hover, #yiv6752333481
div.yiv6752333481file-title a:visited {
text-decoration:none;}

#yiv6752333481 div.yiv6752333481photo-title a,
#yiv6752333481 div.yiv6752333481photo-title a:active,
#yiv6752333481 div.yiv6752333481photo-title a:hover,
#yiv6752333481 div.yiv6752333481photo-title a:visited {
text-decoration:none;}

#yiv6752333481 div#yiv6752333481ygrp-mlmsg
#yiv6752333481ygrp-msg p a span.yiv6752333481yshortcuts {
font-family:Verdana;font-size:10px;font-weight:normal;}

#yiv6752333481 .yiv6752333481green {
color:#628c2a;}

#yiv6752333481 .yiv6752333481MsoNormal {
margin:0 0 0 0;}

#yiv6752333481 o {
font-size:0;}

#yiv6752333481 #yiv6752333481photos div {
float:left;width:72px;}

#yiv6752333481 #yiv6752333481photos div div {
border:1px solid
#666666;height:62px;overflow:hidden;width:62px;}

#yiv6752333481 #yiv6752333481photos div label {
color:#666666;font-size:10px;overflow:hidden;text-align:center;white-space:nowrap;width:64px;}

#yiv6752333481 #yiv6752333481reco-category {
font-size:77%;}

#yiv6752333481 #yiv6752333481reco-desc {
font-size:77%;}

#yiv6752333481 .yiv6752333481replbq {
margin:4px;}

#yiv6752333481 #yiv6752333481ygrp-actbar div a:first-child {
margin-right:2px;padding-right:5px;}

#yiv6752333481 #yiv6752333481ygrp-mlmsg {
font-size:13px;font-family:Arial, helvetica, clean,
sans-serif;}

#yiv6752333481 #yiv6752333481ygrp-mlmsg table {
font-size:inherit;font:100%;}

#yiv6752333481 #yiv6752333481ygrp-mlmsg select,
#yiv6752333481 input, #yiv6752333481 textarea {
font:99% Arial, Helvetica, clean, sans-serif;}

#yiv6752333481 #yiv6752333481ygrp-mlmsg pre, #yiv6752333481
code {
font:115% monospace;}

#yiv6752333481 #yiv6752333481ygrp-mlmsg * {
line-height:1.22em;}

#yiv6752333481 #yiv6752333481ygrp-mlmsg #yiv6752333481logo {
padding-bottom:10px;}


#yiv6752333481 #yiv6752333481ygrp-msg p a {
font-family:Verdana;}

#yiv6752333481 #yiv6752333481ygrp-msg
p#yiv6752333481attach-count span {
color:#1E66AE;font-weight:700;}

#yiv6752333481 #yiv6752333481ygrp-reco
#yiv6752333481reco-head {
color:#ff7900;font-weight:700;}

#yiv6752333481 #yiv6752333481ygrp-reco {
margin-bottom:20px;padding:0px;}

#yiv6752333481 #yiv6752333481ygrp-sponsor #yiv6752333481ov
li a {
font-size:130%;text-decoration:none;}

#yiv6752333481 #yiv6752333481ygrp-sponsor #yiv6752333481ov
li {
font-size:77%;list-style-type:square;padding:6px 0;}

#yiv6752333481 #yiv6752333481ygrp-sponsor #yiv6752333481ov
ul {
margin:0;padding:0 0 0 8px;}

#yiv6752333481 #yiv6752333481ygrp-text {
font-family:Georgia;}

#yiv6752333481 #yiv6752333481ygrp-text p {
margin:0 0 1em 0;}

#yiv6752333481 #yiv6752333481ygrp-text tt {
font-size:120%;}

#yiv6752333481 #yiv6752333481ygrp-vital ul li:last-child {
border-right:none !important;
}
#yiv6752333481

Re: [PolySix] KLM-366B Replacement

2015-12-16 by <backshall1@bellsouth.net>

It’s very unlikely that you will find a replacement KLM-366B, so one way or another it will have to be repaired. Are you talking about LFO to VCO and Pitch Bend problems that affect all voices or just one voice? Did the tech fix anything? Where were the traces pulled out? Which  board? Where on the KLM-366B can you see corrosion?
 
Don B.
 
Sent: Tuesday, December 15, 2015 6:08 PM
Subject: [PolySix] KLM-366B Replacement
 
 

Hey gang,


Just got my Polysix back from the tech, one of my voices is dead, thought it might have been the chip. And my LFO to VCO and pitch bend were not working as well. Thought it might have been a simple connection problem. But it seems that it was neither. In fact the tech said that a lot of traces were pulled out, I guess this happened when the Polysix was being fixed from a previous battery leak before I bought, and that there is still corrosion on the KLM-366B board hence my voice problem and problem with the LFO to VCO.


He suggested that I would need a new voice board, the KLM-366B. And I was hoping this group could help lead me in the right direction in finding a replacement board seeing as how they seem very hard to come by. Thanks for your time!


-Brady

Re: [PolySix] KLM-366B Replacement

2015-12-16 by atoneontail@gmail.com

Thanks to everyone for their responses thus far, I am kind of relieved to hear it might be the tech. But after closer inspection myself, it does appear there is some corrosion on the voice board. Under the specific voice that is not working, Voice 4.

To answer your questions Don:

- The LFO to VCO and Pitch Bend not functioning is affecting all Voices

-The Tech said he did not fix anything

-He specifically mentioned a trace missing/pulled from the KLM-369 board, but later mentioned he noticed a bunch had been pulled.

-He said he noticed the corrosion on the back of the KLM-366B board, specifically around Voice 4, the one that is not sounding. In a closer inspection, I noticed what could be corrosion, but I am no expert. 

The picture attached is an image of the KLM-366B board, notice R136.