Discussion about the Korg PolySix synthesizer

Hi there,
I have owned a Polysix for about 8 years now.

One thing I've always wondered about is this:

Generally, when I switch the Polysix on,
all the LEDs on the top panel will light up together
for a few seconds, and the unit won't make any sounds
until they go out.

Is it supposed to this?
(Perhaps it's autotuning or sthg?)

There doesn't appear to be any mention whatsoever
of the phenomena in the User or Service Manuals.

Usually it's not a problem, but occasionaly
(eg which I've lugged the PS-6 to a gig in the back
of a van), the LEDs will take a minute or two to go out...
...making me worry that they're just gonna stick
like that one day!

DAVID

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Hi,

This is - if it takes one or two seconds - normal behaviour.
During power-on reset, when the microcontroller is not in normal
work. But this should not exceed two seconds. There is a section
right at the beginning of the alignment chapter in the service
manual that describes the adjustment of the power-on reset
circuitry.

I hope this helps,

Johannes

PolySix@yahoogroups.com,Internet writes:

>Hi there,
>I have owned a Polysix for about 8 years now.
>
>One thing I've always wondered about is this:
>
>Generally, when I switch the Polysix on,
>all the LEDs on the top panel will light up together
>for a few seconds, and the unit won't make any sounds
>until they go out.
>
>Is it supposed to this?
>(Perhaps it's autotuning or sthg?)
>
>There doesn't appear to be any mention whatsoever
>of the phenomena in the User or Service Manuals.
>
>Usually it's not a problem, but occasionaly
>(eg which I've lugged the PS-6 to a gig in the back
>of a van), the LEDs will take a minute or two to go out...
>...making me worry that they're just gonna stick
>like that one day!
>
>DAVID
>
>=====
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>http://www.felinedream.co.uk
>
>__________________________________________________
>Do You Yahoo!?
>Everything you'll ever need on one web page
>from News and Sport to Email and Music Charts
>http://uk.my.yahoo.com
>
>To unsubscribe from this group, send an email to:
>PolySix-unsubscribe@egroups.com
>
>PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>

On Wed, 5 Feb 2003, David Davis wrote:

> Hi there,
> I have owned a Polysix for about 8 years now.
>
> One thing I've always wondered about is this:
>
> Generally, when I switch the Polysix on,
> all the LEDs on the top panel will light up together
> for a few seconds, and the unit won't make any sounds
> until they go out.
>
> Is it supposed to this?
> (Perhaps it's autotuning or sthg?)

That is the "power on reset" timer resetting the patch manager (KLM-367)
microcontroller. It shouldn't, however, take a minute for it to come out
of reset. Does your polysix need the patch memory battery replaced?
Original batteries are 21 years old and leak when they expire.

Crow
/**/

Eeek!

I got my PS6 in 1995..... that was 8 years ago....
....so I guess even if the previous owner replaced the NiCd
battery,
it could be due a new one now anyways....?

I looked inside the other day,
it's got a RS (a UK electronics wholesaler) NiCd one in there,
plus a little bit of point-to-point wiring -
this makes me think that perhaps the original Korg NiCd
battery leaked and was replaced (and the board fixed up)
some time before I bought the PS6....

I keep the PS6 permanently powered up in my studio
to try and preserve the battery ...... last time it took a couple
of minutes for the LEDs to come on, it was when we'd been out
gigging
round Britain and it had been powered off for the best part of 48
hours...
.... bad sign, right...? :-/

I should replace it with a lithium one ASAP?

> That is the "power on reset" timer resetting the patch

manager (KLM-367)

> microcontroller. It shouldn't, however, take a minute for it

to come out

> of reset. Does your polysix need the patch memory battery

replaced?

> Original batteries are 21 years old and leak when they expire.
>
> Crow
> /**/
>
>
> To unsubscribe from this group, send an email to:
> PolySix-unsubscribe@egroups.com
>
> PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
>
> Your use of Yahoo! Groups is subject to

http://docs.yahoo.com/info/terms/

>
>
>

when I got my p6, it had the original battery replaced with another nicad, but I replaced it with a li-ion anyhow. I also found some bad traces that the previous "fixers" had missed, and restored more functionality to it.

If you have important patches, just back them up, and restore them (to make sure) before you start soldering...
--
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Oh don't worry,
I always have my patches backed up! :-)

(Tip for this,
if it's never occured to you before -
I do this with all my old synths that have a cassette
interface for saving data:

Save the data direct to your PC's soundcard,
and burn the resulting WAV files onto an audio CD...
...(a re-writable CD is even handier, as you can
re-use it perioidically when you've new sounds to save...)

this gives the advantage of
(a) your patches pretty much ALWAYS load back in
successfully (unlike bloody cassette tape!)
(b) you can skip to the track on the CD with the data
you want with ease, rather than messing around with
a Fast Forward/Rewind on a cassette, trying to find
the one you want.


--- Chromatest Pantsmaker <chromatest@graffiti.net> wrote:

> when I got my p6, it had the original battery replaced
> with another nicad, but I replaced it with a li-ion
> anyhow. I also found some bad traces that the previous
> "fixers" had missed, and restored more functionality to
> it.
>
> If you have important patches, just back them up, and
> restore them (to make sure) before you start soldering...
>

=====
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
http://www.felinedream.co.uk

__________________________________________________
Do You Yahoo!?
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I use minidisc... :) same advantages, don't need the computer...

----- Original Message -----
From: David Davis <feline1@felinedream.co.uk>

> (Tip for this,
> if it's never occured to you before -
> I do this with all my old synths that have a cassette
> interface for saving data:

> this gives the advantage of
> (a) your patches pretty much ALWAYS load back in
> successfully (unlike bloody cassette tape!)
> (b) you can skip to the track on the CD with the data
> you want with ease, rather than messing around with
> a Fast Forward/Rewind on a cassette, trying to find
> the one you want.
--
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