Korg Poly800/EX800 Users

CHEERS!$!@$

will take a look at my stuff n see what i can see!

most grateful thanks!

Marcus

On Wednesday, July 21, 2004, at 06:17 PM, x x wrote:

> let me know if you got my info on the chip # ic 34 page six of the 
> repair manual for vers one and 2 is the same in this realm. TC40H138 
> fails there will be no xound heard for some or all of the groups. This 
> seems logical to assume that since all other functions seem working 
> that this would be the answer.When you get it to work I have patches 
> to trade.Good luck
> Alien
>
> Marcus Wilson <JB@...> wrote:
>
> sounds like an excellent start anyway!@
>
> i have put my poly to one side at the moment, as i had no clue as to
> where to proceed, this at least gives me a direction.
>
> once again thank you for the info, hopefully it will bring one more
> poly back to life!
>
> thanks!
>
> Marcus
> On Monday, July 19, 2004, at 05:34 AM, x x wrote:
>
> > Ok im looking up chip today you will have to find the chip on the net
> > I dont think ill have one to spare. It wasnt easy locating the last
> > set ...
> > It sounds so like the main problem described in the tech notes up 
> date
> > that I fixed a poly with ....
> > Will let you know today.
> > Patrick
> >
> > Marcus Wilson wrote:
> >
> > awesome!~
> > i'd be very keen to find out more.
> >
> > Mine was dead until i replaced a couple of power transistors in the 
> +/-
> > 5V stage that were buggered, and had been poorly messed with by a
> > previous owner.
> > I bought mine for $10 in a carpark junk sale, and took it home,
> > managed to get the midi control side going so now i can control my
> > other gear with the poly,
> >
> > all of the patches etc can be edited stored etc, and i managed to
> > reload factory settings too, but no sound out.
> >
> > It looked like the clock and everything was performing properly but 
> no
> > tone out of the tone generator.
> >
> > Soldering is easy for me, so if you can point me to the correct
> > component, i should be able to make it happy again, and that would be
> > awesome!
> >
> > thanks again for your info so far.
> >
> > Marcus
> > On Sunday, July 18, 2004, at 06:03 PM, x x wrote:
> >
> > > It is one toshiba chip that needs to be replaced.
> > > It is mentioned in the service manual should all work but no sound 
> be
> > > heard from the poly 800. Its on the main board. The number of the
> > chip
> > > is on my schematics . I cant gurentee it but it is in the service
> > > notes. apperntly enough of the same prob happend that this was a
> > major
> > > note. Im not saying this is or isnt .But Ive bought a few poly 800s
> > > and its one or the other chips for the output control to the sound
> > > source of the poly 800....
> > > If interested Ill get the part number and email the service note. 
> If
> > > you can solder very finely its not a big chip. I dont know if I 
> have
> > a
> > > spare im pretty much building up parts to keep for me when this
> > > happens again. SinceI have three and I bought some extras let me 
> see
> > > what I find out when I look through my parts bin I collect toshiba
> > > chips and major processors for the poly .Im now starting to with 
> the
> > > juno. I will sale poly 800 keys now and some other stuff .This will
> > > also change I bid on every broken one I can find...
> > > Peace
> > > Alien
> > >
> > >
> > > Marcus Wilson wrote:
> > >
> > > mines a poly800 yeah
> > >
> > > all works for midi control
> > > no tone generation tho
> > >
> > > looking for a working tone generator for it
> > >
> > > Marcus
> > > On Saturday, July 17, 2004, at 09:54 AM, x x wrote:
> > >
> > > > is that a poly 800?
> > > >
> > > > Marcus Wilson wrote:
> > > >
> > > > have you got any tone generator chips you could send me?
> > > >
> > > > my poly works on the digital side, all the patches store etc, 
> midi
> > > out
> > > > works, just nothing comes out of the tone generator!
> > > >
> > > > ive put a cro over the data lines, and signals and clock all 
> appear
> > > to
> > > > be working, just that chip has no output on the tone lines.
> > > >
> > > > any help available?
> > > >
> > > > best regards,
> > > >
> > > > Marcus in Oz
> > > > On Saturday, July 17, 2004, at 06:45 AM, x x wrote:
> > > >
> > > > > I collect dead poly 800s////
> > > > >
> > > > > skunkride wrote:
> > > > >
> > > > >
> > > > > Nice one Julio !  Gives me hope about my dead Poly....
> > > > >
> > > > >
> > > > >
> > > >
> > > > >
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