Discussion about the Korg PolySix synthesizer group photo

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Discussion about the Korg PolySix synthesizer

Index last updated: 2026-04-28 23:40 UTC

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Re: [PolySix] Re: Calibration procedure.

2016-12-20 by <backshall1@bellsouth.net>

Make sure you use the APL-3 version of the TL5514. It has very low current draw when the synth is powered off. Other versions seem to drain the battery fairly quickly.

From: a_cornish_2000@yahoo.com [PolySix] 
Sent: Tuesday, December 20, 2016 3:16 PM
To: PolySix@yahoogroups.com 
Subject: [PolySix] Re: Calibration procedure.

  
Hi Don,

Yeah that is an old production KLM-366 / 396. I may have one bad voice chip on it, but in general it's pretty good.

On the KLM-370, the acid somehow went through the earth wire, and destroyed about 20 traces on that board. It took around 3 hours to clean that one up, but it was relatively easy given it is a single sided board with minimal components. Something I was not expecting.
The original KLM-367 board had less battery damage to it, but because a clone board came up on ebay, I just grabbed it.
Oh, and my TL5514 RAM chip is shot as well. Easy one to fix.

Anthony.

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