Discussion about the Korg PolySix synthesizer

Ok the problem should not be on the KLM 371
I checked all "Pxx" and "Dxx" and all works good.

So the problem should be in the KLM 366?

 
--- In PolySix@yahoogroups.com, "backshall1 \(dsl\)" <backshall1@...> wrote:
>
> TE is Tape Enable. It should be +5v when not active. If you turn Tape Enable
> on, it should go to near 0v.
> Don B.
> 
>   _____  
> 
> From: PolySix@yahoogroups.com [mailto:PolySix@yahoogroups.com] On Behalf Of
> aniello iaccarino
> Sent: Saturday, September 18, 2010 10:07 AM
> To: PolySix@yahoogroups.com
> Subject: [PolySix] Re: Adjustment Procedure problems
> 
> 
>   
> 
> Hi Andy
> I did a continuity-check between P10 on the KLM 367 board and the relatives
> points on the KLM 371
> 
> Then I did check P10 pins on KLM 367 with an oscilloscope (with KLM 371 not
> connected) and I found this values:
> 
> pin1: D3 +/- 5V
> pin2: D2 +/- 5V
> pin3: D1 +/- 5V
> pin4: D0 +/- 5V
> pin5: P13 0V
> pin6: P12 0V
> pin7: P11 0V
> pin8: P10 0V
> pin9: D4 +/- 5V
> pin10: D5 +/- 5V
> pin11: D6 +/- 5V
> pin12: D7 +/- 5V
> pin13: P26 0V
> pin14: P27 0V
> pin15: +5V
> pin16: GND 
> pin17: TE +5V (what does TE means?)
> 
> Are this values regular?
> 
> cheers
> 
> Aniello
> 
> --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> , "aniello
> iaccarino" <ani.bliss@> wrote:
> >
> > I'll try asap and let you know!
> > Thanks
> > 
> > Aniello
> > 
> > --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> , Andrew
> Jury <andy@> wrote:
> > >
> > > Hi Aniello,
> > > 
> > > If you are trying to set up Œinit clear¹ (reset) with the 56K resistor
> on
> > > the test point on the power supply all the LEDS should come on without
> any
> > > exceptions. You are basically setting the point where /REST on the CPU
> goes
> > > low. Rotate too far and the output from the comparator is always low and
> > > thus all the LEDs are lit in reset mode. If LEDs are changing from on to
> off
> > > then I would suggest you have a problem with with data/PIO bus. Start at
> > > connector CN10 and make sure the wiring from here to the KLM 371
> (right-hand
> > > top panel PCB) is all sound. If you have a logic probe or a scope you
> will
> > > find this very usually for measure state on these lines and whether you
> have
> > > connectivity. If this is a acid damaged repaired 367, then go back and
> take
> > > a look at track continuity around where the old battery used to be,
> around
> > > IC30/31 and even under the CPU socket. This is a favourite place for
> unseen
> > > acid damage to lurk!
> > > 
> > > I would strongly suggest you look at these problem first before you
> attend
> > > to the MG issues. IC21 and IC16 (or parts of) form an astable with part
> of
> > > a a timing constant in C19. However, don¹t forget that IC21 is a
> > > transconductance amplifier and is controlled by a current on pin 16. So
> you
> > > should also test the controlling circuitry from the demultiplexor
> downwards,
> > > as well!
> > > 
> > > Cheers,
> > > Andy 
> > > 
> > > On 08/07/2010 16:28, "aniello iaccarino" <ani.bliss@> wrote:
> > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > Hi Andy
> > > > I'm working on the original KLM367 board.
> > > > 
> > > > Cheers
> > > > Aniello
> > > > 
> > > > --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com>
> <mailto:PolySix%40yahoogroups.com> , Andrew
> > > > Jury <andy@> wrote:
> > > >> >
> > > >> > Are you working on an original KLM-367 or trying to calibrate the
> clone
> > > >> > board?
> > > >> > 
> > > >> > Cheers,
> > > >> > Andy
> > > >> > 
> > > >> > 
> > > >> > On 05/07/2010 22:26, "aniello.iaccarino" <ani.bliss@> wrote:
> > > >> > 
> > > >>> > > 
> > > >>> > > 
> > > >>> > > 
> > > >>> > > 
> > > >>> > > 
> > > >>> > > Hi Friends
> > > >>> > > I recently did the adjustment procedure and I found two
> problems.
> > > >>> > > 
> > > >>> > > The first is: not all the leds BANK A-D, PROGRAMS 1-8, MANUAL
> and TAPE
> > > >>> > > ENABLE lights up when i turn VR1 from left to right, but every
> time I
> > > >>> > > pass a certain point of VR1 leds light up in different
> combinations.
> > > >>> > > [[-(]
> > > >>> > > 
> > > >>> > > I have to say that I can proceed to the calibration procedure
> anyway.
> > > >>> > > But I don't know If the result of the calibration procedure
> could be
> > > >>> > > better if all leds light up instead some of them.
> > > >>> > > 
> > > >>> > > The second i found is that when I regulate MG speed I can't
> obtain a
> > > >>> > > cycle of 10-40 sec, but just 4 sec, a very short cycle. [[-(]
> > > >>> > > For this problem have I to check IC21 and C19?
> > > >>> > > 
> > > >>> > > Any suggestion? [:D]
> > > >>> > > 
> > > >>> > > Thanks
> > > >>> > > 
> > > >>> > > Aniello
> > > >>> > > 
> > > >>> > > [Non-text portions of this message have been removed]
> > > >>> > > 
> > > >>> > > 
> > > >>> > > 
> > > >>> > > 
> > > >>> > > 
> > > >> > 
> > > >> > 
> > > >> > 
> > > >> > [Non-text portions of this message have been removed]
> > > >> >
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > 
> > > 
> > > 
> > > [Non-text portions of this message have been removed]
> > >
> >
> 
> 
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