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Discussion about the Korg PolySix synthesizer

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IC22 Chip possibly dead on P6

IC22 Chip possibly dead on P6

2010-02-26 by biggiemoog

Im about to buy a damaged P6 off a shop, it had the battery leak issue which has since been cleaned and tracks have been rejoined. The P6 powers up but all the leds remain on, no audio is coming out. Ive read that its possible that the IC22 CPU is damaged, is it possible to get a replacement (new or old) or is this issue a separate issue the IC22?

Any help would be great

Re: IC22 Chip possibly dead on P6

2010-03-06 by n0disc0

Check http://www.analogsynthservice.com/poly6.html for a 8048 �controller replacement.

The owner of this website is participating to this message board as klosmon/cavernosum7.

Re: [PolySix] IC22 Chip possibly dead on P6

2010-03-06 by klosmon

Of the many battery-damaged P6s I've repaired, practically none had a 
bad CPU chip -- most times the problem is with the circuit board.
One thing you might try is turning the Reset trimmer to the left;  if 
it's too far to the right, it can cause the symptom you describe.

~GMM



biggiemoog wrote:
>  
>
> Im about to buy a damaged P6 off a shop, it had the battery leak issue 
> which has since been cleaned and tracks have been rejoined. The P6 
> powers up but all the leds remain on, no audio is coming out. Ive read 
> that its possible that the IC22 CPU is damaged, is it possible to get 
> a replacement (new or old) or is this issue a separate issue the IC22?
>
> Any help would be great
>
> 



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