Hi Vincent,
What Paul said is correct. You can also use the "Test Points" (known as
"TP'x'") which are little brass hooks with a yellow bead at the bottom. The
first part of the adjustment procedure is on the KLM-376 PCB, the power
supply at the back of the unit. With this procedure you are checking to make
sure the voltages coming off the power supply are correct. Take care in
doing this. If you are unsure about what you are doing, keep one hand in
your back pocket. It is a little harder to electrocute yourself that way.
To make the dummy plug for the reset procedure (56k resistor thing) see if
you can find an old computer mother board and take off a small connector.
The audio connectors should fit perfectly. You'll solder a 56k resistor
across the wires.
As far as the oscilloscope goes, ask around where you live. I've borrowed
one from my co-worker's boyfriend for about 9 months. No need to buy
something that you aren't going to use a lot. I'm sure you can find one
where you live.
Above all...GO SLOW AND BE CAREFUL!!!! Make sure you understand what it is
that you are trying to do...BEFORE you do it. Remember, you are working in a
circuit that has electricity applied to it. This is dangerous if you don't
know how to be careful.
Also know this: this is an extremely challenging project if you have not
worked on electronic circuits before. It is a good idea to find someone
where you live who can help you!
Jed
On Fri, May 14, 2010 at 6:52 PM, Paul T <sharpfish@hotmail.com> wrote:
>
> there is a blank white plastic 2 pinned connector just below a capacitor
> and near a VR on the rear panel mounted power board (for the 52k load) - the
> j1/2/7 etc are the component style 'jumpers' on this board - you put your
> multimeter probe against the legs of them and get the reading from there -
> they are marked on the board as J1/2/7 etc. I did mine just the other day as
> it happens.
> HTHPaul
>
> To: PolySix@yahoogroups.com
> From: KLBR@free.fr
> Date: Sat, 15 May 2010 01:44:38 +0000
> Subject: [PolySix] Re: MG section problem
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> HI there!
>
>
>
> I'm really you guys crossed my thread!
>
> Thanks again to take time to help me!
>
>
>
> To Jed and Andy, I will undo the R09 fix tomorrow, I'd like to start as
>
> well the Adjustment Procedure where there is some parts I don't
>
> understand at the very beginning of the procedure I should verify the
>
> power supply with the test point on the "J" ??? What are the J 's, are
>
> they some diodes? or resistances? And then ON the Reset Procedure there
>
> is something with a 52Ko resistance but I can't get to understand where
>
> i should put the legs on ?
>
> and for the MG "Calibration" I really need to use an Oscilloscope but I
>
> found there was some software equivalent. What do you think about them?
>
> I'll still look on ebay...
>
>
>
> I still did some tests with the buttons and knobs.
>
> Here the result:
>
>
>
> OUTPUT SECTION
>
>
>
> Volume : Ok
>
> Output SW : Ok
>
>
>
> TUNE SECTION
>
>
>
> Tune Knb : not sure
>
>
>
> VCO SECTION
>
>
>
> Octave : Ok
>
> Waveform selection : Ok
>
> PW\PWM : hard to say
>
> PWM Speed : hard to say too
>
> Sub Osc SW : Ok
>
>
>
> VCF SECTION
>
>
>
> Cutoff : No
>
> Resonance : No
>
> EG Intensity : No
>
> Keyboard Track : No
>
>
>
> VCA SECTION
>
>
>
> VCA Mode : Ok
>
> Attenuation : Ok
>
>
>
> ARPEGGIATOR SECTION
>
>
>
> Arpeggiator SW on/off : Ok
>
> Arpeggiator Speed : Ok
>
> Range SW : Ok
>
> Mode SW : Ok
>
> Latch SW : Ok
>
>
>
> MG SECTION
>
>
>
> Freq Diode : Yes but not sync with the Freq Knb
>
> Freq : No
>
> Delay : No
>
> Level : No
>
> MG Mode : Ok
>
>
>
> EG SECTION
>
>
>
> Attack : No
>
> Decay : No
>
> Sustain : No
>
> Release : No
>
>
>
> EFFECTS SECTION
>
>
>
> (Once again it's hard to say 'cause I hear the notes played only on the
>
> "top" of the modulation so it's hard to define phaser ensemble or
>
> chorus)
>
>
>
> FX Mode : Seems Ok
>
> Speed\Intensity : Hard to say
>
>
>
> BEND SECTION
>
>
>
> Bend Intensity : Ok
>
>
>
> WHEELS
>
>
>
> Bend Wheel : Ok
>
> MG Wheel : Ok
>
>
>
> KEY ASSIGN MODE SECTION
>
>
>
> Hold : Ok
>
> Chord Memory : Ok
>
> Unison : Ok
>
> Poly : Ok
>
>
>
> PROGRAMMER SECTION
>
>
>
> All the numbers work when pressed but can't hear the difference
>
>
>
> By the way thanks a lot for the Manual Service I found one on a website
>
> but yours is best!
>
>
>
> Looking forward for your answers
>
>
>
> Cheers!
>
>
>
> Vincent
>
>
>
> PS : ANDY I live in Paris where are you hiding?
>
>
>
> --- In PolySix@yahoogroups.com, Jed Jorgensen <jed.jorgensen@...> wrote:
>
> >
>
> > Man, I'm way too impatient this morning. Andy just sent me a complete
>
> copy
>
> > of the manual. That is now up on my website. I'm also putting a copy
>
> in the
>
> > file section here.
>
> >
>
> > J
>
> >
>
> > On Fri, May 14, 2010 at 9:31 AM, Jed Jorgensen jed.jorgensen@...wrote:
>
> >
>
> > > Vincent,
>
> > >
>
> > > I've put a copy of the service manual on my webpage here:
>
> > >
>
> http://sites.google.com/site/jedjorgensen/klm367a/images/pcb-bugs-errors\
>
> /manuals<https://sites.google.com/site/jedjorgensen/klm367a/images/pcb-b\
>
> ugs-errors/manuals>
>
> > >
>
> > >
>
> > >
>
> <https://sites.google.com/site/jedjorgensen/klm367a/images/pcb-bugs-erro\
>
> rs/manuals>This
>
> > > is not a complete copy of the manual, but it has the calibration
>
> procedure
>
> > > that you need to follow. The calibration procedure for the 367 board
>
> is on
>
> > > pages 10 and 11.
>
> > >
>
> > > Jed
>
> > >
>
> > >
>
> > > On Fri, May 14, 2010 at 8:45 AM, Jed Jorgensen
>
> jed.jorgensen@...wrote:
>
> > >
>
> > >> Hi Vincent,
>
> > >>
>
> > >> Yes, put R9 back and re-jumper the trace you cut. That modification
>
> isn't
>
> > >> recommended unless you have LFO noise present that can't be fixed
>
> by another
>
> > >> method. I've updated my website to make that clear.
>
> > >>
>
> > >> The calibration procedure on the VR's is necessary to make the
>
> board and
>
> > >> the P6 function correctly. You can begin parts of the procedure
>
> without an
>
> > >> oscilloscope, but as Andy noted you have to have one to do the job
>
> > >> correctly.
>
> > >>
>
> > >> Do you have a copy of the service manual? I'll put one on my
>
> website soon,
>
> > >> but I'm pretty sure it is in the files section at the yahoo groups
>
> page.
>
> > >>
>
> > >> Jed
>
> > >>
>
> > >> On Fri, May 14, 2010 at 4:22 AM, kluberrrrr KLBR@... wrote:
>
> > >>
>
> > >>>
>
> > >>>
>
> > >>> Hi Jed,
>
> > >>>
>
> > >>> first I'd like to thank you for what you did for the P6 itself and
>
> of
>
> > >>> course its users! Even if my P6 doesn't work yet I remain positive
>
> :)
>
> > >>> I also appreciate you fast answer! thanks!
>
> > >>>
>
> > >>> I fixed the R52 and R98 issues. I was hesitating by doing the last
>
> one (
>
> > >>> lift the resistance 9 and cut the trace) I did it : unsoldering
>
> one leg of
>
> > >>> the R9 cut the trace and put a jumper between the CN 06 pin 02 and
>
> the
>
> > >>> unsoldered leg of the R09.
>
> > >>>
>
> > >>> No more sound at all !Well, I can hear on the background the
>
> modulation
>
> > >>> if i put the gain very high of the audio amp. The knobs on the MG
>
> panel
>
> > >>> remain unusable
>
> > >>>
>
> > >>> Before to did the fix, I was able to hear the notes played through
>
> the
>
> > >>> modulation generator which went in and out very slowly in any MG
>
> mod ( vca
>
> > >>> vcf )with a very normal volume. I'm sure that the sound is
>
> modulate because
>
> > >>> I can follow the MG led with the fade of the sound
>
> > >>>
>
> > >>> I don't have done the VR adjustments yet because I don't have any
>
> access
>
> > >>> to an oscilloscope. But I'm not sure it will change a lot. My
>
> first target
>
> > >>> is to have the sound back without the modulation on it .
>
> > >>>
>
> > >>> Should I put the R09 back and remove the jumper? and try something
>
> else?
>
> > >>> Or should I try to do the Don B. fix on the 368 board?
>
> > >>>
>
> > >>> Could the problem on my P6 come from another part?
>
> > >>>
>
> > >>> Cheers!
>
> > >>>
>
> > >>> Vincent
>
> > >>>
>
> > >>> --- In PolySix@yahoogroups.com <PolySix%40yahoogroups.com>, Jed
>
> > >>> Jorgensen jed.jorgensen@ wrote:
>
> > >>> >
>
> > >>> > Hi Vincent,
>
> > >>> >
>
> > >>> > Did you fix the two PCB errors noted here (#1 & #3):
>
> > >>> >
>
> > >>>
>
> https://sites.google.com/site/jedjorgensen/klm367a/images/pcb-bugs-error\
>
> s
>
> > >>> >
>
> > >>> > <
>
> > >>>
>
> https://sites.google.com/site/jedjorgensen/klm367a/images/pcb-bugs-error\
>
> s
>
> > >>> >Also,
>
> > >>> > did you calibrate the board following the build as per the
>
> service
>
> > >>> manual?
>
> > >>> >
>
> > >>> > Jed
>
> > >>> >
>
> > >>> > On Thu, May 13, 2010 at 3:07 PM, kluberrrrr KLBR@ wrote:
>
> > >>> >
>
> > >>> > >
>
> > >>> > >
>
> > >>> > > Hi everybody,
>
> > >>> > >
>
> > >>> > > I'm quite desperate here, so I hope someone could help me a
>
> bit
>
> > >>> especially
>
> > >>> > > because I'm not very good in English and I'm not an electronic
>
> guy!
>
> > >>> > > A couple of years ago I found a polysix which had the famous
>
> leak
>
> > >>> battery
>
> > >>> > > problem, so impossible to play on it.
>
> > >>> > >
>
> > >>> > > I tried to repair the KLM 367 but with no success.
>
> > >>> > > Then i discovered the Jed's project
>
> > >>> > >
>
> > >>> > > Today I've just finished to solder all the parts on the
>
> KLM-367A
>
> > >>> clone
>
> > >>> > > board.
>
> > >>> > > I put the board back on my P6. Then I turned it on.
>
> > >>> > >
>
> > >>> > > First, the programmer panel seems to work fine, Led button
>
> repond
>
> > >>> when I
>
> > >>> > > push them
>
> > >>> > >
>
> > >>> > > BUT there is no sound at all. Just some attack sound, some
>
> 'blops'.
>
> > >>> > >
>
> > >>> > > When I hold a key down, I can hear the note coming very slowly
>
> and
>
> > >>> fade
>
> > >>> > > out. Just like the LEd of the MG panel fading In and Out very
>
> slowly.
>
> > >>> > >
>
> > >>> > > The Mg frequency, delay and level's knobs don't affect the
>
> > >>> modulation. Even
>
> > >>> > > if the modulation level is at 0, the sound is fully modulated
>
> > >>> > >
>
> > >>> > > So I guess it's the MG section which seems to not work
>
> properly. It
>
> > >>> looks
>
> > >>> > > like it is stuck on a very slow frequency and there is no way
>
> to cut
>
> > >>> the
>
> > >>> > > modulation.
>
> > >>> > >
>
> > >>> > >
>
> > >>> > > Also cutoff, resonance, eg int, keyboard track knobs don't
>
> seem to
>
> > >>> change
>
> > >>> > > the sound.
>
> > >>> > >
>
> > >>> > > When I built the new Jed's PCB, I used from the old board the
>
> mask
>
> > >>> rom IC,
>
> > >>> > > the TC5514APL-3 IC, the two LM13600 ICs and the 2SA798
>
> > >>> > >
>
> > >>> > > What do you think? Is it possible that one of the Ic is dead?
>
> Or does
>
> > >>> it
>
> > >>> > > look like the problem is deeper?
>
> > >>> > >
>
> > >>> > > Please excuse my poor english !
>
> > >>> > >
>
> > >>> > > Cheers!
>
> > >>> > >
>
> > >>> > > Vincent
>
> > >>> > >
>
> > >>> > >
>
> > >>> > >
>
> > >>> >
>
> > >>> >
>
> > >>> > [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]
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> _________________________________________________________________
> http://clk.atdmt.com/UKM/go/197222280/direct/01/
> We want to hear all your funny, exciting and crazy Hotmail stories. Tell us
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>
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>
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>
>
>
>
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