Korg Poly800/EX800 Users

Ok, I'm now scared.
I've had my MK-1 for a little less then a year now, and since day one I've
used a 1 amp 9v psu that I had been using with my CZ-1000. It still works
fine and I've abused it quite heavily.

Check your polarities... were they opposite on the keyboard and psu? And what
kind of amperage was the original psu supposed to have, as I never had one
in the first place...

Hi,

I've got an old Poly 800 Mk 1 from which I bought about 10 years 
ago.  A long time ago I managed to connect it up to an Amiga via midi 
which totally wiped out all the sounds.  Eventually with the advent 
of the internet I managed to get some sound banks downloaded and 
transferred them to minidisc in order to attempt to reload the sounds.

Now, impatient as I am, I didn't bother to go and get a new correct 
power supply, just thought I'd use what I had around the house.  I 
managed to find a 9V PSU from another keyboard.  Didn't realise it 
was giving out 1A current though.  A black cloud of smoke issued from 
my Poly 800.

I realise it's probably beyond repair, and I've been in touch with 
another guy who has done the same thing and he reckons I'd need a new 
board which you can no longer get hold of...

Anyway, my question, and it's a long shot:  Does anyone know of a way 
I can salvage this?  I'd even just like to use it as a midi 
controller, bypassing the sound generation part of it.  Has anyone 
out there got this sort of detailed knowledge to lend me a hand?

Thanks in advance for any advice, no matter how small :)

Rich

Ive got two dead polys which Ive been trying to fix for ages. Moral of the story, have a little patience or have a dead keyboard.

B

-----Original Message-----
From: RichPJ_98 [mailto:richpj_98@...]
Sent: 26 March 2002 11:06
To: korgpolyex@yahoogroups.com
Subject: [korgpolyex] New, and got a problem...


Hi,

I've got an old Poly 800 Mk 1 from which I bought about 10 years 
ago.  A long time ago I managed to connect it up to an Amiga via midi 
which totally wiped out all the sounds.  Eventually with the advent 
of the internet I managed to get some sound banks downloaded and 
transferred them to minidisc in order to attempt to reload the sounds.

Now, impatient as I am, I didn't bother to go and get a new correct 
power supply, just thought I'd use what I had around the house.  I 
managed to find a 9V PSU from another keyboard.  Didn't realise it 
was giving out 1A current though.  A black cloud of smoke issued from 
my Poly 800.

I realise it's probably beyond repair, and I've been in touch with 
another guy who has done the same thing and he reckons I'd need a new 
board which you can no longer get hold of...

Anyway, my question, and it's a long shot:  Does anyone know of a way 
I can salvage this?  I'd even just like to use it as a midi 
controller, bypassing the sound generation part of it.  Has anyone 
out there got this sort of detailed knowledge to lend me a hand?

Thanks in advance for any advice, no matter how small :)

Rich





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Thanks Paul, I think you're the guy I got in touch with through 
sospubs.co.uk!

Rich


--- In korgpolyex@y..., "Bennett, Paul" <p.bennett@s...> wrote:
> Ive got two dead polys which Ive been trying to fix for ages. Moral 
of the story, have a little patience or have a dead keyboard.
> 
> B
> 
> -----Original Message-----
> From: RichPJ_98 [mailto:richpj_98@y...]
> Sent: 26 March 2002 11:06
> To: korgpolyex@y...
> Subject: [korgpolyex] New, and got a problem...
> 
> 
> Hi,
> 
> I've got an old Poly 800 Mk 1 from which I bought about 10 years 
> ago.  A long time ago I managed to connect it up to an Amiga via 
midi 
> which totally wiped out all the sounds.  Eventually with the advent 
> of the internet I managed to get some sound banks downloaded and 
> transferred them to minidisc in order to attempt to reload the 
sounds.
> 
> Now, impatient as I am, I didn't bother to go and get a new correct 
> power supply, just thought I'd use what I had around the house.  I 
> managed to find a 9V PSU from another keyboard.  Didn't realise it 
> was giving out 1A current though.  A black cloud of smoke issued 
from 
> my Poly 800.
> 
> I realise it's probably beyond repair, and I've been in touch with 
> another guy who has done the same thing and he reckons I'd need a 
new 
> board which you can no longer get hold of...
> 
> Anyway, my question, and it's a long shot:  Does anyone know of a 
way 
> I can salvage this?  I'd even just like to use it as a midi 
> controller, bypassing the sound generation part of it.  Has anyone 
> out there got this sort of detailed knowledge to lend me a hand?
> 
> Thanks in advance for any advice, no matter how small :)
> 
> Rich
> 
> 
> 
> 
> 
> To unsubscribe from this group, send an email to:
> korgpolyex-unsubscribe@y...
> 
>  
> 
> Your use of Yahoo! Groups is subject to 
http://docs.yahoo.com/info/terms/

Ill let you know how mine go as Ive got to go back and see the tech whos looking at them now. They are fragile things though, which blow quite easily.

Wheres everyone elses opinions on this?

B

-----Original Message-----
From: RichPJ_98 [mailto:richpj_98@...]
Sent: 26 March 2002 11:14
To: korgpolyex@yahoogroups.com
Subject: [korgpolyex] Re: New, and got a problem...


Thanks Paul, I think you're the guy I got in touch with through 
sospubs.co.uk!

Rich


--- In korgpolyex@y..., "Bennett, Paul" <p.bennett@s...> wrote:
> Ive got two dead polys which Ive been trying to fix for ages. Moral 
of the story, have a little patience or have a dead keyboard.
> 
> B
> 
> -----Original Message-----
> From: RichPJ_98 [mailto:richpj_98@y...]
> Sent: 26 March 2002 11:06
> To: korgpolyex@y...
> Subject: [korgpolyex] New, and got a problem...
> 
> 
> Hi,
> 
> I've got an old Poly 800 Mk 1 from which I bought about 10 years 
> ago.  A long time ago I managed to connect it up to an Amiga via 
midi 
> which totally wiped out all the sounds.  Eventually with the advent 
> of the internet I managed to get some sound banks downloaded and 
> transferred them to minidisc in order to attempt to reload the 
sounds.
> 
> Now, impatient as I am, I didn't bother to go and get a new correct 
> power supply, just thought I'd use what I had around the house.  I 
> managed to find a 9V PSU from another keyboard.  Didn't realise it 
> was giving out 1A current though.  A black cloud of smoke issued 
from 
> my Poly 800.
> 
> I realise it's probably beyond repair, and I've been in touch with 
> another guy who has done the same thing and he reckons I'd need a 
new 
> board which you can no longer get hold of...
> 
> Anyway, my question, and it's a long shot:  Does anyone know of a 
way 
> I can salvage this?  I'd even just like to use it as a midi 
> controller, bypassing the sound generation part of it.  Has anyone 
> out there got this sort of detailed knowledge to lend me a hand?
> 
> Thanks in advance for any advice, no matter how small :)
> 
> Rich
> 
> 
> 
> 
> 
> To unsubscribe from this group, send an email to:
> korgpolyex-unsubscribe@y...
> 
>  
> 
> Your use of Yahoo! Groups is subject to 
http://docs.yahoo.com/info/terms/



To unsubscribe from this group, send an email to:
korgpolyex-unsubscribe@yahoogroups.com

 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

> 
> Anyway, my question, and it's a long shot:  Does anyone know of a way
> I can salvage this?  I'd even just like to use it as a midi
> controller, bypassing the sound generation part of it.  Has anyone
> out there got this sort of detailed knowledge to lend me a hand?
> 
> Thanks in advance for any advice, no matter how small :)
> 
if you cant salvage the poor beastie (i think its dead!) & you really want a
poly 800 mk1 then i have one for sale here...  get in touch privately if you
want it.

}:-)


email:
moose@...

music sites:
http://www.alaskahighwayonline.com
http://www.pigpendigital.com
http://www.mishikawa.com

daMn, that sucks man

Dunno about using it as a MIDI controller, that'd be a good idea. depending 
on how it's arranged you might be able to totally avert the DCO's and the 
EG's, but if it's in the same IC, then I figure not.

peaz,
Joshua

At 05:19 AM 3/26/02, you wrote:
>Ill let you know how mine go as Ive got to go back and see the tech whos 
>looking at them now. They are fragile things though, which blow quite easily.
>
>Wheres everyone elses opinions on this?
>
>B
>
>-----Original Message-----
>From: RichPJ_98 [mailto:richpj_98@...]
>Sent: 26 March 2002 11:14
>To: korgpolyex@yahoogroups.com
>Subject: [korgpolyex] Re: New, and got a problem...
>
>
>Thanks Paul, I think you're the guy I got in touch with through
>sospubs.co.uk!
>
>Rich
>
>
>--- In korgpolyex@y..., "Bennett, Paul" <p.bennett@s...> wrote:
> > Ive got two dead polys which Ive been trying to fix for ages. Moral
>of the story, have a little patience or have a dead keyboard.
> >
> > B
> >
> > -----Original Message-----
> > From: RichPJ_98 [mailto:richpj_98@y...]
> > Sent: 26 March 2002 11:06
> > To: korgpolyex@y...
> > Subject: [korgpolyex] New, and got a problem...
> >
> >
> > Hi,
> >
> > I've got an old Poly 800 Mk 1 from which I bought about 10 years
> > ago.  A long time ago I managed to connect it up to an Amiga via
>midi
> > which totally wiped out all the sounds.  Eventually with the advent
> > of the internet I managed to get some sound banks downloaded and
> > transferred them to minidisc in order to attempt to reload the
>sounds.
> >
> > Now, impatient as I am, I didn't bother to go and get a new correct
> > power supply, just thought I'd use what I had around the house.  I
> > managed to find a 9V PSU from another keyboard.  Didn't realise it
> > was giving out 1A current though.  A black cloud of smoke issued
>from
> > my Poly 800.
> >
> > I realise it's probably beyond repair, and I've been in touch with
> > another guy who has done the same thing and he reckons I'd need a
>new
> > board which you can no longer get hold of...
> >
> > Anyway, my question, and it's a long shot:  Does anyone know of a
>way
> > I can salvage this?  I'd even just like to use it as a midi
> > controller, bypassing the sound generation part of it.  Has anyone
> > out there got this sort of detailed knowledge to lend me a hand?
> >
> > Thanks in advance for any advice, no matter how small :)
> >
> > Rich
> >
> >
> >
> >
> >
> > To unsubscribe from this group, send an email to:
> > korgpolyex-unsubscribe@y...
> >
> >
> >
> > Your use of Yahoo! Groups is subject to
><http://docs.yahoo.com/info/terms/>http://docs.yahoo.com/info/terms/
>
>
>
>To unsubscribe from this group, send an email to:
>korgpolyex-unsubscribe@yahoogroups.com
>
>
>
>Your use of Yahoo! Groups is subject to 
><http://docs.yahoo.com/info/terms/>http://docs.yahoo.com/info/terms/
>
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In message <20020325225849.C681845DD@...>,
trip@... writes
>Check your polarities... were they opposite on the keyboard and psu? And what
>kind of amperage was the original psu supposed to have, as I never had one
>in the first place...

Okay, before everyone panics, the Amperage of the PSU will /not/ fry
your keyboard. If it can't draw enough from the PSU, it will kill the
PSU, if the PSU is rated higher, it will just not be working as hard -
you can't force the current, it has to be drawn.

Incorrect polarity, dead shorts, and other faults such as the wrong
voltage will kill the voltage regulator (which is what I suspect has
failed). Using the correct polarity, correct voltage, and a current
rating equal to or greater than the requirements will be fine.

Richard
-- 
Richard Kilpatrick, long haired prophet of doom.       |\      _,,,---,,_
Musical suicide - www.mp3.com/RichardKilpatrick       /,`.-'`'    -.  ;-;;,
Work: Icon Publications, Group Sales Manager         |,4-  ) )-,_. ,\ (  `'::.
Homepage:  http://www.lovecraft.demon.co.uk/       '----''(_/--'  `-'\_)Morticia

So do you think I could replace the voltage regulator in that case?

I may have got the polarity wrong, or the wrong voltage I guess :)

Cheers for all the replies.

Rich


--- In korgpolyex@y..., Richard Kilpatrick <richard@l...> wrote:
> In message <20020325225849.C681845DD@t...>,
> trip@b... writes
> >Check your polarities... were they opposite on the keyboard and 
psu? And what
> >kind of amperage was the original psu supposed to have, as I never 
had one
> >in the first place...
> 
> Okay, before everyone panics, the Amperage of the PSU will /not/ fry
> your keyboard. If it can't draw enough from the PSU, it will kill 
the
> PSU, if the PSU is rated higher, it will just not be working as 
hard -
> you can't force the current, it has to be drawn.
> 
> Incorrect polarity, dead shorts, and other faults such as the wrong
> voltage will kill the voltage regulator (which is what I suspect has
> failed). Using the correct polarity, correct voltage, and a current
> rating equal to or greater than the requirements will be fine.
> 
> Richard
> -- 
> Richard Kilpatrick, long haired prophet of doom.       |\      _,,,-
--,,_
> Musical suicide - www.mp3.com/RichardKilpatrick       /,`.-'`'    -
.  ;-;;,
> Work: Icon Publications, Group Sales Manager         |,4-  ) )-
,_. ,\ (  `'::.
> Homepage:  http://www.lovecraft.demon.co.uk/       '----''(_/--'  `-
'\_)Morticia