Korg Polysix KLM-368 Calibration

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weyerma
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Korg Polysix KLM-368 Calibration

Post by weyerma » Sun Jul 25, 2021 10:43 pm

Hi all,

If i do the calibration of the effect board, i'm always getting a weird signal on TP3.
TP1 and TP2 are moving in time and can be calibrated to max. 30ms as described in the manual.
But TP3 does always stay in the same length and can be only calibrated to max. 13ms.
Only if i set the switch to phaser, all the TP1-TP3 waveforms are looking ok.
For Chorus and Ensemble it looks wrong on TP3.
The manual says switch to Ensemble and set the intensity to max.

TP1 and TP2: https://streamable.com/v9psq3
TP3: https://streamable.com/pjfj56

Could anyone give me a hint what could be wrong? I have already replaced IC22 and IC14.

Thanks,
Thomas
Last edited by weyerma on Tue Jul 27, 2021 10:07 am, edited 1 time in total.

weyerma
Newbie
Newbie
Posts: 2
Joined: Mon Apr 20, 2020 9:40 pm

Re: Korg Polysix KLM-368 Calibration

Post by weyerma » Tue Jul 27, 2021 10:06 am

Ok, has been solved. IC23 was not working correctly and the output on PIN7 and PIN8 was always -15v.

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