Re: [korg_mono-poly] Re: Monopoly VCO-4 prtamento/detuning issue
2012-03-08 by Alan Dicker
I would only replace the chips as and when they fail unless you are a dab hand with removing ICs. You don t want to start lifting traces up where no work
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Re: Monopoly VCO-4 prtamento/detuning issue
2012-03-08 by dir_marillion
Hi Florian, I bought 4x TL072CP chips, for a very low price. I am not sure what is the CP at the end of the TL072. *** Please confirm (if you know) that this
Re: [korg_mono-poly] Re: Monopoly VCO-4 prtamento/detuning issue
2012-03-08 by Jeppe Madsen
No... Sorry I didn t respond. My mail went under and i couldn t post. So I requested access to the group only recently. I never got around to replacing it
Re: [korg_mono-poly] Re: Monopoly VCO-4 prtamento/detuning issue
2012-03-08 by Florian Anwander
... Jeppe! dir_marillion related his request to your thread two years ago. You never responded my suggestion. Did you ever try to replace the 4066? Florian
Re: [korg_mono-poly] Re: Monopoly VCO-4 prtamento/detuning issue
2012-03-08 by Jeppe Madsen
Hello. I have the same problem. If I leave th MP4 on for a while the VCO s and the portamento works allright. I would like to fix the problem though, so please
Re: [korg_mono-poly] Re: Monopoly VCO-4 prtamento/detuning issue
2012-03-08 by Florian Anwander
... The TL072 is a standard chip you will get it at any electronics shop It is located on the VCO board close to Connector CN12 Florian
Re: Monopoly VCO-4 prtamento/detuning issue
2012-03-08 by dir_marillion
Hi Florian, Thank you very much. Is this TL072 on the same board as the HD14066BP ? Does it have a similar or I can order it as TL072 ? Do I have to tune all
Re: [korg_mono-poly] Monopoly VCO-4 prtamento/detuning issue
2012-03-08 by Florian Anwander
Hello ... I think the TL072 which does the portamento buffering for VCO4 might be broken. It is IC10. Florian -- *http://fa.utfs.org/*
Monopoly VCO-4 prtamento/detuning issue
2012-03-08 by dir_marillion
Hello, This is my first post here. It seems a great yahoo Forum with knowledge base and I would like to thank all people here for sharing their help to others.
Re: [korg_mono-poly] Highpass / Bandpass Filter mod
2011-11-22 by Jeppe Madsen
Yes that would be nice. Maybe before the LPF. Then I could use the trig out to trigger an external envelope and filter? Jeppe 2011/11/22 Florian Anwander
Re: [korg_mono-poly] Highpass / Bandpass Filter mod
2011-11-22 by Florian Anwander
Hi Jeppe ... I don t know any solution to implement a highpass with an SSM2044 (beside known halfhearted workarounds like mix the filtersignal with the phase
Highpass / Bandpass Filter mod
2011-11-22 by Jeppe Madsen
Hi. Do you know if there is a Highpass / Bandpass filter mod for the MP4? Or is it possible to mod the Mono/Poly and install an extra filter stage (like with
Re: [korg_mono-poly] heater circuits in Monopoly
2011-11-21 by Alan Dicker
Is the idea not to regulate the heat of the chip to hold a constant temp? Maybe they found the stock chips ran to hot in the MP s circuits and extra external
heater circuits in Monopoly
2011-11-21 by thesnomans
I was curious if anyone had any idea why Korg thought it necessary to add the 500 ohm resistors to the top of the VCO chips, when the SSM2033 already has a
Re: [korg_mono-poly] White noise when played, even with all OSC off and filter closed
2011-11-09 by Alan Dicker
I would take Florain word for it on these matters he knows the Monopoly very well but a full recalibration would start from the power supply and is detailed in
Re: White noise when played, even with all OSC off and filter closed
2011-11-09 by mokkinger
okay, sounds good... whenever you have the time, I ll be glad to hear any examples; and thanks for your help! mark
Re: White noise when played, even with all OSC off and filter closed
2011-11-09 by mokkinger
Hi Jeppe, thanks for the info, really seems like this is normal and nothing is broken; still dont get it how I did these thick fat basslines with one sinewave,
Re: [korg_mono-poly] White noise when played, even with all OSC off and filter closed
2011-11-09 by Florian Anwander
Hello Mark ... I don t think that any recalibration is required. regarding sound examples: I won t be able to do recordings in the same way like you did until
Re: White noise when played, even with all OSC off and filter closed
2011-11-09 by Jeppe Madsen
Hey Mark. Mine sounds almost the same at the triangle wave setting. Maybe with a little less bg noise, but almost the same. It seems like the triangle wave
Re: [korg_mono-poly] White noise when played, even with all OSC off and filter closed
2011-11-09 by Mark Burow
No, no compressor or anything...I tried different inputs on my interface (motu 828mk3), tried it on my recording desk BCII, always the same... what exactly do
Re: [korg_mono-poly] White noise when played, even with all OSC off and filter closed
2011-11-09 by Alan Dicker
I have the same noise but yours does sound much louder in level. Maybe a full recalibration would help starting from the power supply. I assume the sine wave
Re: [korg_mono-poly] White noise when played, even with all OSC off and filter closed
2011-11-09 by Mark Burow
Hi Florian, well, no, I didnt really change anything important. same speakers, same interface, same room; I do remember that I created some really fat bass
Re: [korg_mono-poly] White noise when played, even with all OSC off and filter closed
2011-11-09 by Florian Anwander
Hello Mark, I did not compare it to my M/P now, but I tend to say: this is normal noise caused by the circuitry (typically from the resistors). Could it be,
Re: [korg_mono-poly] White noise when played, even with all OSC off and filter closed
2011-11-08 by Mark Burow
Hi guys, I made a recording of the problem-M/P tonite: I tried to capture the noise by doing the following: first, all OSC off, and filter Cutoff & resonance
Re: [korg_mono-poly] White noise when played, even with all OSC off and filter closed
2011-11-07 by Alan Dicker
A recording would help to understand if its just the normal low level noise you find in the circuit or if it is indeed something of concern. Alan
Re: [korg_mono-poly] White noise when played, even with all OSC off and filter closed
2011-11-06 by Mark Burow
hey florian, sure, I will record the noise asap. but do you have already any idea where this could come from? thx for your help, mark
Re: [korg_mono-poly] White noise when played, even with all OSC off and filter closed
2011-11-06 by Florian Anwander
Hi Mark ... This will help for sure. Florian
White noise when played, even with all OSC off and filter closed
2011-11-05 by Mark Burow
hi folks, I seem to have some problem with my Mono/Poly... I discovered last week that, when I hit any key, there is a white noise, even with all OSCs turned
Fw: Your Netlog account has been deleted.
2011-10-26 by Dean Luca
As you can see I have deleted the account... Your Netlog account has just been deleted. We hope you had a good time after all on Netlog. Maybe we ll meet
Re: [korg_mono-poly] Spam from "Dan Leuca"
2011-10-26 by Florian Anwander
Hi, someone hijacked Deans netlog-Account (you can see, that they name themself Dan Leuca, where his real name is Dean Luca). I got in touch with Dean. These
OT: AKAI MX73 / MX 76 (keyboard controller) schematics ?
2011-10-03 by Gil
Any chance anyone has it and is willing to share ? I have this nice keyboard here which doesn t boot... Looks like quite a simple circuit, but a scheme will
Re: [korg_mono-poly] Re: Video of M/P Unstable Filter - Diagnostic Help??
2011-09-28 by Florian Anwander
Hello Kaleb ... Don t do this. The alcohol will remove useful lubricants on potentiometers and switches; those will become scratchy - even the effect you are
Re: Video of M/P Unstable Filter - Diagnostic Help??
2011-09-28 by Kaleb
Hi Florian, Yes, I should have cleaned her up for her grand youtube debut. I admit, I am not much for dusting, but clean the MP, inside and out, with alcohol
Re: [korg_mono-poly] Video of M/P Unstable Filter - Diagnostic Help??
2011-09-27 by Alan Dicker
If you leave a playing in hold an apply pressure to different areas of the case or gently knok it can you create the same effect? I think Florian may be on to
Re: [korg_mono-poly] Video of M/P Unstable Filter - Diagnostic Help??
2011-09-27 by Florian Anwander
Hello Kaleb I cannot see the complete MP in the video, but I assume, that sometimes modwheel modulation feeds through to the filter. I d check for dirt or
Video of M/P Unstable Filter - Diagnostic Help??
2011-09-27 by Kaleb
Hi, I have made a video of the unstable tone my Mono/Poly has recently contracted, originating somewhere from the low pass filter. What s curious is the
Re: Warbling Filter "Drop Out" Artifacts
2011-09-27 by Kaleb
Hi Alan, I went ahead and made a video of the Korg s unstable filter artifacts. Maybe in hearing it, you can diagnose what it sounds like the problem might be.
Re: [korg_mono-poly] Re: Warbling Filter "Drop Out" Artifacts
2011-09-23 by Alan Dicker
velocity sensitive? this would make me suspect a dry solder joint or badly sat IC. ~A recording might help a video would be even better if you say its
Re: Warbling Filter "Drop Out" Artifacts
2011-09-23 by Kaleb
Yea, the cutoff knob, itself, turns perfectly smoothly without any scratching or artifacts. It seems it is only when hitting a key does the warbling change in
Re: [korg_mono-poly] Warbling Filter "Drop Out" Artifacts
2011-09-21 by Alan Dicker
My first port of call for this type of problem would be to clean the pots associated tot he filters cut of frequency. that s cut off, EG intensity and KBD
Warbling Filter "Drop Out" Artifacts
2011-09-21 by Kaleb
Hello, My beloved Mono/Poly recently started to develop a warbling seemingly-random filter drop out sound. These artifacts are noticeable when playing the
Re: Strange artifacts in filter resonance...
2011-09-21 by Kaleb
Hello, I recently started getting what sounds to be a similar, although more severe, problem on my M/P; a warbling seemingly-random filter drop out sound.
Re: [korg_mono-poly] Noise sound and All LEDs are lit
2011-09-02 by Florian Anwander
Hello Darijo, this sounds like a broken regulator in the powersupply, which gets corrupted when heating up. I d suggest not to switch the synth on again. If
Re: [korg_mono-poly] Noise sound and All LEDs are lit
2011-09-02 by Darijo Berkes
don t have the MP4 here now, I can t any tones from the synth, it s just the nosie if i put the output switch (next to the volume dial) to high. Darijo 2 sep
Re: [korg_mono-poly] Noise sound and All LEDs are lit
2011-09-02 by Chase Smith
Can you post a sample of the noise? My mono/poly works fine, but also has a high pitched noise in the background. I d like to know if they are similar.
Noise sound and All LEDs are lit
2011-09-02 by Darijo Berkes
I have a Korg Mono/Poly with a strange error. When I turn on the MP4, it looks like everything is fine, but after some seconds all LEDs turns on (for all VCO,
VCOs 3 and 4 out of tune
2011-08-31 by jeddateech
Hi guys, I have a problem with my Mono/Poly where vcos 3 and 4 are both out of tune by about 2 semitones - ie. when vcos 1 and 2 are playing a C, vcos 3 and 4
possible to get a clock in to LFO2?
2011-07-25 by jonahr
Hi, just in the midst of considering a few pedals to mod up and it got me to thinking about the mono/poly.. since the arp and the lfo2 are tied together when
Re: [korg_mono-poly] Re: value of a used monopoly
2011-07-19 by Dean Luca
I bought mine for 950 Pounds... it used to belong to Trevor Horn! I intend selling it for the same price (postage will be paid by buyer).
Re: [korg_mono-poly] Re: value of a used monopoly
2011-07-19 by David Kyle
I sold mine in 2006 for 650 usd..... really needed the cash. I just bought one recapped and fully serviced locally for 1500 usd ouch :| D ... -- eat and