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Does my Polysix have a problem (from S.O.S forum)

Does my Polysix have a problem (from S.O.S forum)

2004-02-02 by dotwav

At the bottom is the message I wrote to the sound on sound forum,
somebody advised I post it here as well.Apparently it appears as if
there is a problem with the P6, so I've had another play around with
it to see if I can identify some more symptoms.
I'm sorr if it all seems a bit here and there, bu as I write it,
I've been trying things out.

Going through the patch banks, all but one sound (so thats 1 of 23)
sounds fine in poly mode when it's switched on, if I play about with
the delay in the MG section, or the decay in the EG section I can
put it into "6th note differnt mode"
This is where if I play 6 notes, (either the same or different,
varying lengths doesnt matter) the sixth note always sounds
different to the 5 before it, usually the 6th note will be quiet, or
vastly different in resonance or something.
Of the other 23 patches, most of them suffer this 6th different note
in one of two types, the type I've just explained where the patch is
audible for 5 notes then quiet or differnt on the 6th, or, there are
some patches that are virtually quiet, and then sound something on
the sixth note. (and they have this from the preset, playing about
with the delay or decay doesnt alter the 6th note)
The other type of sixth note note it's doing is when I switch to any
number of patches (there's about 12 that do this) It plays a note,
but carries on playing the note even tho I let go of the key, (like
a chord hold)... press a different key, for 5 times and it still
plays the first one and none of the keys just pressed, press a key
the 6th time and it starts to play the 6th note on hold until
another cycle of 6 comes round at which point it'll play whatever
6th note was then hit.Again this is in the patch that way.
I'm thinking, because all patches sound this way in one way or
another, it can't be that they were programmed like this.

One suggestion, was the battery may had leaked, but this was one of
the first things I checked whenI bought it, and the battery looks
like a new one (I can take a picture of the circut board around the
battrey for anyone that thinks this may be the problem, it looks ok
to me, but an expericed pair of eyes may tell me otherwise.)

Finally, and possibly not to do with this problem, can someone
explain the function of this EG switch - again I just tried th piano
patch from the patch sheet, and it didnt sound anything like a piano
(unless piano sound a bit spacey bass), and I think the patch sheet
is telling me to have the eg switch on. This results in the note
playing on hold (and actually stays on hold until a 6th not is
pplaye when the 6th note the plays on hold).

When in unision mode, I don't suffer with this 6th note difference.
(well I havent come across it yet)

Another thing I've just stumbled on (patch 8 bank A) quiet for 5
notes, noise for 6th, so doesnt play much, (patch 7 bank A) first
note pressed is one of these held notes, throw the EG switch on,
then off again, and patch 7 plays notes normally, switch back to
patch 8, and it's now playing normally too, however, play around
with the knobs and i can put it into 6th note different, tried this
on some other patches, and it does the same thing.

If I discover anything, I'll post that up too... Anywats a picture
of the battery are, can do that (can I attach pic files here)

Rob






SOS forum posting.

Had my polysix for about 4 months now, got my hands on the
programming side of it straight away.However, I was a bit put off,
as a lot of the time when it's in poly mode, I get odd "results".
Having bought it second hand, it had programs already on it, when
you hit a note, you get a sound, hit it consecutivley a number of
times, and every sixth note sounds different (most of the time,
silent)... or the opposite, 5 notes of silence, and the an audible
sound on the sixth. I'm sure this is just the way it's programmed,
but I can't seem to make many sounds where it doesnt do this. (I did
get 1 sound on both poly and unision, where it doesnt have this
effect, but it's a pretty lame sound and I can't remember what I did
to get rid of this error on this particular patch. (<- NOW INCORRECT)
Having said all that, if anyone has seen the patch sheets for the
original sounds (picked them up from here OldSchool Sound , I
downloaded copies of them today, and as an example, I tried
programming the piano sound to see how it sounded, and all I get is
some really slow oscillating bass type sound.

I have a copy of the manual for this, and though it gives you an
idea of what each section is for, it's been knob all help in trying
to get me any decent "synth" sounds on it.

Any pointers, anything I can try, any way to initialise the thing...


Thanks if any one can help me sort this..

Rob

Re: [PolySix] Does my Polysix have a problem (from S.O.S forum)

2004-02-02 by greg montalbano

My first impression would be that the machine has one faulty voice -- it
needs either trimming or repair.

However, first thing you want to try is dumping the current memory (save it
to tape or computer if you like some of the patches) and re-loading the
factory data (available a number of places on the web).

If the problem persists, it's not a data problem; it's a voice problem,
and we'll have to narrow it down from there.

~GMM
ANALOG SYNTHESIZER SERVICE & MODIFICATION

At 03:05 PM 2/2/04 +0000, you wrote:
>At the bottom is the message I wrote to the sound on sound forum,
>somebody advised I post it here as well.Apparently it appears as if
>there is a problem with the P6, so I've had another play around with
>it to see if I can identify some more symptoms.
>I'm sorr if it all seems a bit here and there, bu as I write it,
>I've been trying things out.
>
>Going through the patch banks, all but one sound (so thats 1 of 23)
>sounds fine in poly mode when it's switched on, if I play about with
>the delay in the MG section, or the decay in the EG section I can
>put it into "6th note differnt mode"
>This is where if I play 6 notes, (either the same or different,
>varying lengths doesnt matter) the sixth note always sounds
>different to the 5 before it, usually the 6th note will be quiet, or
>vastly different in resonance or something.
>Of the other 23 patches, most of them suffer this 6th different note
>in one of two types, the type I've just explained where the patch is
>audible for 5 notes then quiet or differnt on the 6th, or, there are
>some patches that are virtually quiet, and then sound something on
>the sixth note. (and they have this from the preset, playing about
>with the delay or decay doesnt alter the 6th note)
>The other type of sixth note note it's doing is when I switch to any
>number of patches (there's about 12 that do this) It plays a note,
>but carries on playing the note even tho I let go of the key, (like
>a chord hold)... press a different key, for 5 times and it still
>plays the first one and none of the keys just pressed, press a key
>the 6th time and it starts to play the 6th note on hold until
>another cycle of 6 comes round at which point it'll play whatever
>6th note was then hit.Again this is in the patch that way.
>I'm thinking, because all patches sound this way in one way or
>another, it can't be that they were programmed like this.
>
>One suggestion, was the battery may had leaked, but this was one of
>the first things I checked whenI bought it, and the battery looks
>like a new one (I can take a picture of the circut board around the
>battrey for anyone that thinks this may be the problem, it looks ok
>to me, but an expericed pair of eyes may tell me otherwise.)
>
>Finally, and possibly not to do with this problem, can someone
>explain the function of this EG switch - again I just tried th piano
>patch from the patch sheet, and it didnt sound anything like a piano
>(unless piano sound a bit spacey bass), and I think the patch sheet
>is telling me to have the eg switch on. This results in the note
>playing on hold (and actually stays on hold until a 6th not is
>pplaye when the 6th note the plays on hold).
>
>When in unision mode, I don't suffer with this 6th note difference.
>(well I havent come across it yet)
>
>Another thing I've just stumbled on (patch 8 bank A) quiet for 5
>notes, noise for 6th, so doesnt play much, (patch 7 bank A) first
>note pressed is one of these held notes, throw the EG switch on,
>then off again, and patch 7 plays notes normally, switch back to
>patch 8, and it's now playing normally too, however, play around
>with the knobs and i can put it into 6th note different, tried this
>on some other patches, and it does the same thing.
>
>If I discover anything, I'll post that up too... Anywats a picture
>of the battery are, can do that (can I attach pic files here)
>
>Rob
>
>
>
>
>
>
>SOS forum posting.
>
>Had my polysix for about 4 months now, got my hands on the
>programming side of it straight away.However, I was a bit put off,
>as a lot of the time when it's in poly mode, I get odd "results".
>Having bought it second hand, it had programs already on it, when
>you hit a note, you get a sound, hit it consecutivley a number of
>times, and every sixth note sounds different (most of the time,
>silent)... or the opposite, 5 notes of silence, and the an audible
>sound on the sixth. I'm sure this is just the way it's programmed,
>but I can't seem to make many sounds where it doesnt do this. (I did
>get 1 sound on both poly and unision, where it doesnt have this
>effect, but it's a pretty lame sound and I can't remember what I did
>to get rid of this error on this particular patch. (<- NOW INCORRECT)
>Having said all that, if anyone has seen the patch sheets for the
>original sounds (picked them up from here OldSchool Sound , I
>downloaded copies of them today, and as an example, I tried
>programming the piano sound to see how it sounded, and all I get is
>some really slow oscillating bass type sound.
>
>I have a copy of the manual for this, and though it gives you an
>idea of what each section is for, it's been knob all help in trying
>to get me any decent "synth" sounds on it.
>
>Any pointers, anything I can try, any way to initialise the thing...
>
>
>Thanks if any one can help me sort this..
>
>Rob
>
>
>
>
>PolySix "Digiest" Page:
><http://www.acc.umu.se/~amber/Poly6>http://www.acc.umu.se/~amber/Poly6
>
>
>
>----------
>Yahoo! Groups Links
> * To visit your group on the web, go to:
> *
> <http://groups.yahoo.com/group/PolySix/>http://groups.yahoo.com/group/PolySix/
> *
> * To unsubscribe from this group, send an email to:
> *
> <mailto:PolySix-unsubscribe@yahoogroups.com?subject=Unsubscribe>PolySix-unsubscribe@yahoogroups.com
>
> *
> * Your use of Yahoo! Groups is subject to the
> <http://docs.yahoo.com/info/terms/>Yahoo! Terms of Service.


[Non-text portions of this message have been removed]

RE: [PolySix] Does my Polysix have a problem (from S.O.S forum)

2004-02-03 by Sowa Roman

Hi,
looks to me like you have problem with one voice.
It requires trimming, and if it doesn't help, the chips in that voice
may be faulty.
I suggest the following:
1. find the faulty voice - there's a LED in each voice, so you know
for sure which of the 6 are faulty when you play it.
2. adjust the voice according to tuning procedure
3. if it doesn't help, replace filter chip (SSM2044) and envelope
generator (SSM2056?) with chips from any other voice. If the problem
occurs with that other voice now, you know you have faulty chips.
4. check also connections between voice and CPU board. Best is to
disconnect and reconnect them several times.
5. if that sounds too techy for you, give the P6 to someone who can fix it.
It looks like a 1-hour job for anyone familiar with P6 or analog synths
in general.

you don't hear the problem in unison because there are all 6 voices
playing and if there's something weird in one of them it gets covered
by other 5.

Roman

||-----Original Message-----
||From: dotwav [mailto:rob19@eggconnect.net]
||Sent: Monday, February 02, 2004 4:06 PM
||To: PolySix@yahoogroups.com
||Subject: [PolySix] Does my Polysix have a problem (from S.O.S forum)
||
||
||At the bottom is the message I wrote to the sound on sound forum,
||somebody advised I post it here as well.Apparently it appears as if
||there is a problem with the P6, so I've had another play around with
||it to see if I can identify some more symptoms.
||I'm sorr if it all seems a bit here and there, bu as I write it,
||I've been trying things out.
||
||Going through the patch banks, all but one sound (so thats 1 of 23)
||sounds fine in poly mode when it's switched on, if I play about with
||the delay in the MG section, or the decay in the EG section I can
||put it into "6th note differnt mode"
||This is where if I play 6 notes, (either the same or different,
||varying lengths doesnt matter) the sixth note always sounds
||different to the 5 before it, usually the 6th note will be quiet, or
||vastly different in resonance or something.
||Of the other 23 patches, most of them suffer this 6th different note
||in one of two types, the type I've just explained where the patch is
||audible for 5 notes then quiet or differnt on the 6th, or, there are
||some patches that are virtually quiet, and then sound something on
||the sixth note. (and they have this from the preset, playing about
||with the delay or decay doesnt alter the 6th note)
||The other type of sixth note note it's doing is when I switch to any
||number of patches (there's about 12 that do this) It plays a note,
||but carries on playing the note even tho I let go of the key, (like
||a chord hold)... press a different key, for 5 times and it still
||plays the first one and none of the keys just pressed, press a key
||the 6th time and it starts to play the 6th note on hold until
||another cycle of 6 comes round at which point it'll play whatever
||6th note was then hit.Again this is in the patch that way.
||I'm thinking, because all patches sound this way in one way or
||another, it can't be that they were programmed like this.
||
||One suggestion, was the battery may had leaked, but this was one of
||the first things I checked whenI bought it, and the battery looks
||like a new one (I can take a picture of the circut board around the
||battrey for anyone that thinks this may be the problem, it looks ok
||to me, but an expericed pair of eyes may tell me otherwise.)
||
||Finally, and possibly not to do with this problem, can someone
||explain the function of this EG switch - again I just tried th piano
||patch from the patch sheet, and it didnt sound anything like a piano
||(unless piano sound a bit spacey bass), and I think the patch sheet
||is telling me to have the eg switch on. This results in the note
||playing on hold (and actually stays on hold until a 6th not is
||pplaye when the 6th note the plays on hold).
||
||When in unision mode, I don't suffer with this 6th note difference.
||(well I havent come across it yet)
||
||Another thing I've just stumbled on (patch 8 bank A) quiet for 5
||notes, noise for 6th, so doesnt play much, (patch 7 bank A) first
||note pressed is one of these held notes, throw the EG switch on,
||then off again, and patch 7 plays notes normally, switch back to
||patch 8, and it's now playing normally too, however, play around
||with the knobs and i can put it into 6th note different, tried this
||on some other patches, and it does the same thing.
||
||If I discover anything, I'll post that up too... Anywats a picture
||of the battery are, can do that (can I attach pic files here)
||
||Rob
||
||
||
||
||
||
||SOS forum posting.
||
||Had my polysix for about 4 months now, got my hands on the
||programming side of it straight away.However, I was a bit put off,
||as a lot of the time when it's in poly mode, I get odd "results".
||Having bought it second hand, it had programs already on it, when
||you hit a note, you get a sound, hit it consecutivley a number of
||times, and every sixth note sounds different (most of the time,
||silent)... or the opposite, 5 notes of silence, and the an audible
||sound on the sixth. I'm sure this is just the way it's programmed,
||but I can't seem to make many sounds where it doesnt do this. (I did
||get 1 sound on both poly and unision, where it doesnt have this
||effect, but it's a pretty lame sound and I can't remember what I did
||to get rid of this error on this particular patch. (<- NOW INCORRECT)
||Having said all that, if anyone has seen the patch sheets for the
||original sounds (picked them up from here OldSchool Sound , I
||downloaded copies of them today, and as an example, I tried
||programming the piano sound to see how it sounded, and all I get is
||some really slow oscillating bass type sound.
||
||I have a copy of the manual for this, and though it gives you an
||idea of what each section is for, it's been knob all help in trying
||to get me any decent "synth" sounds on it.
||
||Any pointers, anything I can try, any way to initialise the thing...
||
||
||Thanks if any one can help me sort this..
||
||Rob
||
||
||
||PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
||
||Yahoo! Groups Links
||
||To visit your group on the web, go to:
|| http://groups.yahoo.com/group/PolySix/
||
||To unsubscribe from this group, send an email to:
|| PolySix-unsubscribe@yahoogroups.com
||
||Your use of Yahoo! Groups is subject to:
|| http://docs.yahoo.com/info/terms/
||
||
||
||
||---------------------------------------------------------
||This message has been scanned for viruses by MIMESweeper.
||
||Wiadomosc zostala sprawdzona pod katem wirusow przez
||oprogramowanie MIMESweeper.
||


---------------------------------------------------------
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Re: Does my Polysix have a problem - faulty voice?

2004-02-04 by dotwav

Thanks for the info greg, will give that a try. Something I'm a bit
baffled about is, I had heard the polysix can do six voice, I'm a bit
unsure as to the specification of this, can i create a patch using
just 1 voice, or say three for example, or, do all patches use all
six voices. (apologies for the "newbie-ness" of this question. What
I'm wondering, is, can I look at each voice individually, and see if
one of them is at fault (if so, I'd imagine it wouldnt be as
programmable as the others)... I don't know how to edit seperate
voices.
Will report back at a later point with the factory date test.

Rob


--------------------------------------------------------------------
<greg.montalbano@u...> wrote:
My first impression would be that the machine has one faulty voice --
it needs either trimming or repair.
However, first thing you want to try is dumping the current memory
(save it to tape or computer if you like some of the patches) and re-
loading the factory data (available a number of places on the web).
If the problem persists, it's not a data problem; it's a voice
problem, and we'll have to narrow it down from there.

~GMM
ANALOG SYNTHESIZER SERVICE & MODIFICATION

Re: Does my Polysix have a problem (from S.O.S forum)

2004-02-06 by dotwav

Hi Roman, this was great, many thanks.
I have found that the sixth voice had a faulty SSM2056 (EG) chip.
When I moved just the 2056 to another voice, the fauly note appeared
on the new voice, when I moved just the 2044, the faulty voice was
still no.6 (it hadnt been moved at this point and 2056 was still in
voice 6)
There appears to be a number of adjustable pots (I think thats what
they are, and I'm assuming it's one of these that you adjust for
tuning, however, a little unsure as to what you mean by "adjust the
voice to tuning procedure" as I don't know what the correct
procedure is, so I think I'll just change the chip and hopefully
that will solve my problem.

Thanks again for the help... Rob



--- In PolySix@yahoogroups.com, Sowa Roman <roman.sowa@u...> wrote:
Hi,
looks to me like you have problem with one voice.
It requires trimming, and if it doesn't help, the chips in that
voice may be faulty.
I suggest the following:
1. find the faulty voice - there's a LED in each voice, so you know
for sure which of the 6 are faulty when you play it.
2. adjust the voice according to tuning procedure
3. if it doesn't help, replace filter chip (SSM2044) and envelope
generator (SSM2056?) with chips from any other voice. If the problem
occurs with that other voice now, you know you have faulty chips.
4. check also connections between voice and CPU board. Best is to
disconnect and reconnect them several times.
5. if that sounds too techy for you, give the P6 to someone who can
fix it.
Roman

Re: Does my Polysix have a problem (from S.O.S forum)

2004-02-09 by gil_we

Glad to hear you found the cause for the problem !

Actually have a much similiar problem on my Kawai SX-210 (great
synth BTW),

One of the 8 notes it can play (oscillator) will always sound duller
than the other 7. Actually, it is like the EG (the filter's ADSR)
won't effect on it. When you play some chord that contains the
problemtic note, the whole sound will sound scattered (ta ta ta ta ta)
and as you tweak some parameters on the EG (ADSR) it will sound
faster or slower (the "tatatatata" sound).

I was mainly focued on the computer board as the problems started
when the battary (placed on that board) has leaked all over, so I
had to reaplce some parts and rewire many traces,

But now it looks like the problem should lay on the 2nd oscillator
(that's the one that sounds different). Is that right ?

I noticed the audio circuit uses the same SSM2044 chips (for
filters?) but no 2056 chips. Instead there are a few CD4066BE chips
for every oscillator. Is that the EG chip ?

I saw that the Moog Taurus uses the same CD4066BE chip on the
Filter/VCA/Envelope circuit... like on the following link -

http://home.debitel.net/user/jhaible/jh_minotaurus_1.pdf

Thanks everyone for any advice !



--- In PolySix@yahoogroups.com, "dotwav" <rob19@e...> wrote:
> Hi Roman, this was great, many thanks.
> I have found that the sixth voice had a faulty SSM2056 (EG) chip.
> When I moved just the 2056 to another voice, the fauly note
appeared
> on the new voice, when I moved just the 2044, the faulty voice was
> still no.6 (it hadnt been moved at this point and 2056 was still in
> voice 6)
> There appears to be a number of adjustable pots (I think thats what
> they are, and I'm assuming it's one of these that you adjust for
> tuning, however, a little unsure as to what you mean by "adjust the
> voice to tuning procedure" as I don't know what the correct
> procedure is, so I think I'll just change the chip and hopefully
> that will solve my problem.
>
> Thanks again for the help... Rob
>
>
>
> --- In PolySix@yahoogroups.com, Sowa Roman <roman.sowa@u...> wrote:
> Hi,
> looks to me like you have problem with one voice.
> It requires trimming, and if it doesn't help, the chips in that
> voice may be faulty.
> I suggest the following:
> 1. find the faulty voice - there's a LED in each voice, so you know
> for sure which of the 6 are faulty when you play it.
> 2. adjust the voice according to tuning procedure
> 3. if it doesn't help, replace filter chip (SSM2044) and envelope
> generator (SSM2056?) with chips from any other voice. If the
problem
> occurs with that other voice now, you know you have faulty chips.
> 4. check also connections between voice and CPU board. Best is to
> disconnect and reconnect them several times.
> 5. if that sounds too techy for you, give the P6 to someone who
can
> fix it.
> Roman

Re: Does my Polysix have a problem (from S.O.S forum)

2004-02-09 by gil_we

Oh, and I forgot to mention that the problemtic note actually plays
well for a few seconds when I turn on the synth, and only than starts
to sound odd. It this temperture related ? I can try using cooling
spray on those parts.






--- In PolySix@yahoogroups.com, "gil_we" <gilwe@h...> wrote:
> Glad to hear you found the cause for the problem !
>
> Actually have a much similiar problem on my Kawai SX-210 (great
> synth BTW),
>
> One of the 8 notes it can play (oscillator) will always sound
duller
> than the other 7. Actually, it is like the EG (the filter's ADSR)
> won't effect on it. When you play some chord that contains the
> problemtic note, the whole sound will sound scattered (ta ta ta ta
ta)
> and as you tweak some parameters on the EG (ADSR) it will sound
> faster or slower (the "tatatatata" sound).
>
> I was mainly focued on the computer board as the problems started
> when the battary (placed on that board) has leaked all over, so I
> had to reaplce some parts and rewire many traces,
>
> But now it looks like the problem should lay on the 2nd oscillator
> (that's the one that sounds different). Is that right ?
>
> I noticed the audio circuit uses the same SSM2044 chips (for
> filters?) but no 2056 chips. Instead there are a few CD4066BE chips
> for every oscillator. Is that the EG chip ?
>
> I saw that the Moog Taurus uses the same CD4066BE chip on the
> Filter/VCA/Envelope circuit... like on the following link -
>
> http://home.debitel.net/user/jhaible/jh_minotaurus_1.pdf
>
> Thanks everyone for any advice !

Re: Does my Polysix have a problem (from S.O.S forum)

2004-02-12 by gil_we

I fixed it !

Just as I thought the problem was a faulty 4066 IC lays (probably) at
the EG section of the 2nd oscillator.


--- In PolySix@yahoogroups.com, "gil_we" <gilwe@h...> wrote:
> Oh, and I forgot to mention that the problemtic note actually plays
> well for a few seconds when I turn on the synth, and only than
starts
> to sound odd. It this temperture related ? I can try using cooling
> spray on those parts.
>
>
>
>
>
>
> --- In PolySix@yahoogroups.com, "gil_we" <gilwe@h...> wrote:
> > Glad to hear you found the cause for the problem !
> >
> > Actually have a much similiar problem on my Kawai SX-210 (great
> > synth BTW),
> >
> > One of the 8 notes it can play (oscillator) will always sound
> duller
> > than the other 7. Actually, it is like the EG (the filter's ADSR)
> > won't effect on it. When you play some chord that contains the
> > problemtic note, the whole sound will sound scattered (ta ta ta
ta
> ta)
> > and as you tweak some parameters on the EG (ADSR) it will sound
> > faster or slower (the "tatatatata" sound).
> >
> > I was mainly focued on the computer board as the problems started
> > when the battary (placed on that board) has leaked all over, so I
> > had to reaplce some parts and rewire many traces,
> >
> > But now it looks like the problem should lay on the 2nd
oscillator
> > (that's the one that sounds different). Is that right ?
> >
> > I noticed the audio circuit uses the same SSM2044 chips (for
> > filters?) but no 2056 chips. Instead there are a few CD4066BE
chips
> > for every oscillator. Is that the EG chip ?
> >
> > I saw that the Moog Taurus uses the same CD4066BE chip on the
> > Filter/VCA/Envelope circuit... like on the following link -
> >
> > http://home.debitel.net/user/jhaible/jh_minotaurus_1.pdf
> >
> > Thanks everyone for any advice !