Discussion about the Korg PolySix synthesizer

I'll pull the cover and have a look. So if one filter was bad, the LED and it's
corresponding voice wouldn't work? Thanks for your extreme patience with a
not-so-technical person. I sincerely appreciate the help!

dizz

Quoting BrainSlayer <brainslayer@c-u-d.de>:

> there are six filter chips on the board. 1 for each voice. if you press one
> note it would only use 1 of them. if you release the note and pressing
> another key, another voice (not the same) will be played. so if you trigger 6
> keys in just a normal order you can identify the damage voice if. if you open
> the case you will see that a little led is lighted up for each voice that is
> played (so in fact there are 6 red led's bellow the filter chips)
> just enable the arpeggator and set a slow arpeggio speed. then you will see
> that the 6 led 's are blinking in a linear order. (this works only in poly
> mode, on unisono all led's are lighting up)
>
>
> Sebastian
>   ----- Original Message -----
>   From: dizz@elitemofo.com
>   To: PolySix@yahoogroups.com
>   Sent: Tuesday, July 20, 2004 6:38 PM
>   Subject: Re: [PolySix] VCF cutoff quirkiness
>
>
>   Hi brainslayer,
>
>     Thanks for the quick reply. Just to make sure I understand you correctly,
> If
>   it were the chip itself I would hear it only in poly and not unison mode?
> Or,
>   are you saying hold down six notes in poly mode and it would affect only
> one of
>   the notes? My apologies if I'm being thick-headed here.
>
>   dizz
>
>   Quoting BrainSlayer <brainslayer@c-u-d.de>:
>
>   > if the filter chip would be the source of that issue, you would only hear
> it
>   > at one of the six voices and not at all. so be sure it isnt the filter.
>   >   ----- Original Message -----
>   >   From: dizz662000
>   >   To: PolySix@yahoogroups.com
>   >   Sent: Tuesday, July 20, 2004 4:27 AM
>   >   Subject: [PolySix] VCF cutoff quirkiness
>   >
>   >
>   >   Hi,  this is my my first post to this group. I bought a Polysix
>   >   recently   realizing they're very old. Actually played guitar mainly
>   >   in the 80's but there was always a PSix in my basement studio.
>   >   Background: this unit had maintenance performed by Korg in the 80's
>   >   and the battery was lifted into a socket before any damage occurred.
>   >   It works pretty good except; I noticed some volume issues (not being
>   >   very responsive to cranking it up!) I believe I solved this issue by
>   >   working the volume pot a few times-maybe a scratchy pot in need of
>   >   cleaning. More importantly, there's an issue with the VCF cutoff. It
>   >   doesn't track well when at the lower freqs. When I move the knob it
>   >   sounds like it's dirty and cuts in and out. When it's stationary (not
>   >   moving) the freq cuts off where it should. Just to be clear, I can set
>   >   it any where and get the correct cutoff, it just takes some tweaking
>   >   at the lower end. This again sounds like maybe a dirty pot. I have
>   >   heard that the filter chip set may be going?? Not a tech head myself.
>   >   Sorry for being longwinded but I need to keep this dinosaur roaring!!
>   >   Any feedback would be appreciated
>   >
>   >
>   >
>   >
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