Discussion about the Korg PolySix synthesizer

LOL, Doh! Why I did not notice that is beyond me. Spending to much time staring at stripes on resistors I guess...


- Daniel

--- In PolySix@yahoogroups.com, "y964omw" <andy@...> wrote:
>
> Oh and just one other thing? The CR2032 battery is in the holder upside down! This might be down to the way you have orientated the holder, but traditionally + should face skywards. The right battery for the clone is this one here:
> 
> http://uk.farnell.com/varta/6032401501/cell-coin-pcb-3v/dp/249877?Ntt=249877
> 
> Not that this affects your calibration, but worth mentioning all the same!
> 
> Cheers,
> andy
> 
> --- In PolySix@yahoogroups.com, "Daniel A" <apophis93@> wrote:
> >
> > Thanks Andy for the help.
> > 
> > I am the opposite I prefer Daniel ;)
> > 
> > - Daniel
> > 
> > --- In PolySix@yahoogroups.com, Andrew Jury <andy@> wrote:
> > >
> > > Hi Daniel,
> > > 
> > > Is it Dan or Daniel? I have a friend call Dan and you never call him Daniel
> > > because he doesn¹t like it!
> > > 
> > > Back to business. I see what you mean now I have the picture in front of me.
> > > I was looking at the power supply end, hence the mix up.
> > > 
> > > The lone wire is to exclusively provide the anode of D1 (MG LED) with +5v.
> > > The cut in the track is to disconnect this end of the LED from the main +5v
> > > rail which comes in on a side connector. This looks like a factory mod. All
> > > my Polys have it! Make sure the lone wire runs from the it¹s current
> > > location, back to the power supply and disconnect the other wire you have
> > > added. Don¹t ask me why they chose to run the LED bias voltage on a separate
> > > wire? They must have had their reasons...
> > > 
> > > As for the Œ367 problems. I will study the pictures in depth in a moment...
> > > 
> > > Be back soon...
> > > 
> > > Andy
> > > 
> > > 
> > > On 21/08/2010 07:42, "Daniel A" <apophis93@> wrote:
> > > 
> > > >  
> > > >  
> > > >  
> > > >    
> > > > 
> > > > Andy,
> > > > 
> > > > Here are links to pics of the Polysix boards in question:
> > > > 
> > > > 369 : Loose Blue wire and cut trace:
> > > > http://www.asurarecords.com/pics/polysix/IMG_1776.JPG
> > > > 
> > > > 367 :  Here is the build I have been working on, do note that Mouser sent some
> > > > of the Metal-oxide resistors that are 1/2 watt vs 1/4 watt. There are 4
> > > > installed. I may go find 1/4 watt to replace but did not think this factor
> > > > would affect the board. If I am wrong please let me know ;) If you see
> > > > anything else send me a note.
> > > > 
> > > > http://www.asurarecords.com/pics/polysix/IMG_1779.JPG
> > > > http://www.asurarecords.com/pics/polysix/IMG_1794.JPG
> > > > http://www.asurarecords.com/pics/polysix/IMG_1795.JPG
> > > > http://www.asurarecords.com/pics/polysix/IMG_1796.JPG
> > > > 
> > > > Thanks!
> > > > Daniel
> > > > 
> > > > --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> , Andrew
> > > > Jury <andy@> wrote:
> > > >> >
> > > >> > Daniel,
> > > >> > 
> > > >> > Do you mean R2? This is in the MG routing circuit! Suffice to say you
> > > >> > description of the reset adjustment sound correct. If the top panel
> > > >> controls
> > > >> > are set to default and you switched the Œ367 to test, but you can¹t get the
> > > >> > LEDs to positions 1 and 8 then have a very carefully examination of the
> > > >> > circuitry around IC33. If you have a logic probe confirm you have a pulse
> > > >> > train on data bus DO0-7 (pins 5 to 12). Also carefully verify all the
> > > >> > resistive values of the components around IC27 and make sure C28 is
> > > >> > correctly polarised. Also test the continuity of the test switch! If you
> > > >> > want a second eye on the board take a shot close up and post it for us to
> > > >> > see. Someone eagled eyed might see the problem.
> > > >> > 
> > > >> > If you still can¹t spot the problem. Let me know and I will measure some
> > > >> > voltages from a working board for you to compare with.
> > > >> > 
> > > >> > On my P6 the blue wire is tacked onto the left-hand side of J2. D1 is part
> > > >> > of a current limiting circuit before final 5v rail output. Therefore, D1
> > > >> > should not be directly connected to the blue wire! The best place is either
> > > >> > as I have described or sometime there is a pad on the output 5v rail in the
> > > >> > top left-hand corner of the PSU.
> > > >> > 
> > > >> > Hope this helps,
> > > >> > Andy 
> > > > 
> > > >  
> > > >    
> > > > 
> > > > 
> > > 
> > > 
> > > 
> > > [Non-text portions of this message have been removed]
> > >
> >
>