Re: [korgpolyex] Re: 6 button on keypad intermittent
2016-06-06 by Peter van Beerendonk
What about the simple solution, dead contact switch ? ... From: Gordonjcp gordon@gjcp.net [korgpolyex] To: neil.macneil@yahoo.com [korgpolyex] Sent: Sunday,
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Re: [korgpolyex] AtomaHawk - new hardware version in final testing
2016-06-06 by Michael Hawkins
Thanks Wayne, coincidentally, I ordered a couple of those last night. I use a fixture jig for placing the board and orienting it to a kaptan stencil overlaid
Re: [korgpolyex] AtomaHawk - new hardware version in final testing
2016-06-06 by Wayne
The places I worked at that had surface mount components we didn t use tweezers most of the time. We had little suction cups with bulbs on them. You squeezed
Re: [korgpolyex] AtomaHawk - new hardware version in final testing
2016-06-06 by Michael Hawkins
Ha ha! Yes, I was very pleasantly surprised at how easy it is. I am actually kicking myself for not having tried surface mount ten years ago. Stupid really.
Re: [korgpolyex] AtomaHawk - new hardware version in final testing [2 Attachments]
2016-06-05 by Gordonjcp
... ... and you found it s actually way, way easier than through-hole? -- Gordonjcp MM0YEQ
AtomaHawk - new hardware version in final testing
2016-06-05 by Michael Hawkins
The original AtomaHawk board used a Maxim DS1666+ 10K quasi audio taper digital potentiometer chip that Maxim stopped making and then the after market source
Re: [korgpolyex] Re: 6 button on keypad intermittent
2016-06-05 by Gordonjcp
... And only 6, not any other keys in that row or column? If more than one key was affected I d suspect the latch that drives the keyboard scanning. Since
Re: 6 button on keypad intermittent
2016-06-05 by neil.macneil@...
strange thing is if i push 6 with my other hand touch one of the connection under CN3 on the keypad board the 6 key works...
6 button on keypad intermittent
2016-06-04 by neil.macneil@...
Hey folks, I m new to the group, love it so far. I ve been modding my 800 mk1 with moog slayer, fm 800, etc. A problem that I am seeing is with my 6 key on
Re: [korgpolyex] Poly 800: hair metal, tact switches and joystick problems:
2016-06-03 by James Brickman
Vincenzo and Gordon, Previously I traced my way through much of the circuit diagram, and don t remember seeing the pitch/dco/vcf bend signal going there.
Re: [korgpolyex] Re: The latest news on HAWK
2016-06-02 by LARRY HAWKE
I like it! ________________________________ From: korgpolyex@yahoogroups.com on behalf of Michael Hawkins korgpolyex800@yahoo.com
Re: [korgpolyex] Re: The latest news on HAWK
2016-06-02 by Michael Hawkins
i read yesterday that the practical difference between a DCO and a digital osc is that the digital will always start with the same phase, and that analog,
Re: [korgpolyex] Poly 800: hair metal, tact switches and joystick problems:
2016-06-02 by Vincenzo Vincenzo
hello Gordon, thanks so much for your advice, you ve been very kind, I head straight to the search of the 74HC74. the problem of my joystick is that the pitch
Re: [korgpolyex] Re: The latest news on HAWK
2016-06-02 by domgoold@...
thought i d mention: i m messing around with MFB Synth Lite II and PolyLite synths at the moment. much lamenting online that the oscillators are not VCO, and
Re: [korgpolyex] Poly 800: hair metal, tact switches and joystick problems:
2016-06-01 by Gordonjcp
... How do you know this chip is faulty? What exactly is the problem with the joystick? A suitable replacement for IC17 is probably 74HC74. -- Gordonjcp
Re: [korgpolyex] Poly 800: hair metal, tact switches and joystick problems:
2016-06-01 by Vincenzo Vincenzo
time ago, a group member had reported problems with the joystick and was solved by changing the integrated IC17 (TC40h74P) .. I contacted him because I also
Case for Poly-800
2016-06-01 by carl.holmberg@...
Hi! I m planning to buy myself a hardcase for my poly-800. Now I m wondering what dimensions it should have. Waht kind of cases do you guys use and what
Re: [korgpolyex] Re: The latest news on HAWK
2016-05-28 by imanjl@...
... NJM2069 and MSM5232 both have influence in character of poly-800. It is better to do the emulation of 2069 in a form of standalone software that runs on
Re: [korgpolyex] Re: The latest news on HAWK
2016-05-27 by Michael Hawkins
I would include the NJM2069 so that the entire originality of the Poly-800 would also be retained. I don t mind using some pre-mapped tables in a sampler mode.
Re: The latest news on HAWK
2016-05-26 by bperkins211@...
Sounds like a cool project! Seems it would take over so much of the Korg that it may just be best to make it s own module and transplant a NJM2069 into it.
Re: The latest news on HAWK
2016-05-26 by ultragalore@...
I for one am very curious about this new setup Mike, I also have the PreenFM and setups like this make me very happy (open source project, maybe you want to
Poly 800: hair metal, tact switches and joystick problems:
2016-05-25 by James Brickman
Hello, I’m new to the group. I got a semi-broken P800 off craigslist and have had some success fixing the thing up (fixed black key, cleaned key contacts,
The latest news on HAWK
2016-05-25 by Michael Hawkins
I bought an STM32 evaluation board today. And a bunch of level shifters (needed to convert the 3.3 volt signals to 5 volts). This is the small beginning of the
Re: Poly-800 not overwriting sounds with data loaded from cassette
2016-04-27 by stevedanielson1@...
Sorry, I just saw this. Yes, I can store new patches into memory. It just won t load from cassette, even though it says Good after I try it. Steve
Re: [korgpolyex] Re: Korg Poly 800 issues - trying to do a factory reset, only get error message
2016-04-12 by Michael Hawkins
I think Daniel s advice is perfect except for the last bit about MP3 and D/A. Also, the VRFY function compares the parameter values AND a checksum that was
Re: Korg Poly 800 issues - trying to do a factory reset, only get error message
2016-04-10 by carl.holmberg@...
Success! Me and my friend finally got it working. We went through different volume levels and it worked with the WAV-file. Thanks for all the help! ... /Carl
Re: [korgpolyex] Korg Poly 800 issues - trying to do a factory reset, only get error message
2016-04-07 by Eanna Butler
Wav file has worked for me too, no problems, on an ex800. I use Ableton, out thru a Focusrite Scarlett, quarter inch jack lead to an eighth inch converter. Mp3
Re: [korgpolyex] Korg Poly 800 issues - trying to do a factory reset, only get error message
2016-04-07 by <backshall1@...>
I’ve been using an MP3 player for years with no problem loading or saving with the Poly-800. I can’t say that I’ve ever bothered using the Verify
RE: [korgpolyex] Korg Poly 800 issues - trying to do a factory reset, only get error message
2016-04-07 by Greg Coben
I ve had the same problem with my original Poly 800 for years. I ve also found that the analog signal from cassette tape seems to be more reliable than the
Re: [korgpolyex] Korg Poly 800 issues - trying to do a factory reset, only get error message
2016-04-07 by Daniel Forró
Display shouldn t read VRFY when you load data - only GOOD or ERR. Check this: - Mono cable goes from output of audio device to FROM TAPE on Poly 800. Don t
Re: [korgpolyex] Korg Poly 800 issues - trying to do a factory reset, only get error message
2016-04-07 by <backshall1@...>
Have you tried changing the HI/LOW level switch on the From Tape input to get a different range of levels? Don B. From: mailto:korgpolyex@yahoogroups.com Sent:
Korg Poly 800 issues - trying to do a factory reset, only get error message
2016-04-07 by carl.holmberg@...
Well the title sums it up. A couple of months ago i bought a poly-800 mk1 in very good condition, it worked perfectly - but then i forgot to change the
Poly800 with Hawk 800 and Atomahawk not turning on
2016-03-29 by serosario@...
Dear group, Hope you are all well and you had a nice Easter. Something strange happen to my synth and I am trying to understand what I have done wrong. I have
Re: EX800 scrambled patches
2016-03-22 by stevedanielson1@...
This sounds similar to a problem I had with my Poly-800. If I unplugged it from all power sources for more than a few minutes, some (but not all) of the
Re: [korgpolyex] Poly-800 not overwriting sounds with data loaded from cassette
2016-03-22 by Daniel Forró
Storing the edited program to some memory position is OK? Daniel Forro On Mar 22, 2016, at 4:06 PM, stevedanielson1@yahoo.com [korgpolyex]
Poly-800 not overwriting sounds with data loaded from cassette
2016-03-22 by stevedanielson1@...
My (original) Poly-800 went out for repair because it wasn t storing the patches after the battery had been replaced. The guy put in a new chip (though it
The sound of the FM-800 filter mod
2016-03-09 by new.hansen@...
Hi everyone! This has been such a valuable place for my Korg ex800 mod. Yesterday I finished the FM800 filter mod, and the sound has not quite what I expected
More Korg NJM 2060 VCF chip madness..
2016-02-13 by bperkins211@...
Managed to get the NJM 2069 VCF chip whittled down to minimum parts needed to run it and to get it to do more... Sound Demo- https://youtu.be/fExbdRKDSzo
Re: [korgpolyex] EX800 scrambled patches
2016-02-07 by pvanadrichem@...
No. Sorry, I should have said that: I did replace the battery, that s the first thing I did. Maybe the battery doesn t make contact?
Re: [korgpolyex] EX800 scrambled patches
2016-02-07 by <backshall1@...>
The lithium battery is dead. Replace it. From: mailto:korgpolyex@yahoogroups.com Sent: Sunday, February 7, 2016 1:41 PM To: korgpolyex@yahoogroups.com Subject:
EX800 scrambled patches
2016-02-07 by pvanadrichem@...
Hi everybody, My EX800 has been experiencing problems. Basically, from when I bought mine, it used to lose its patches occasionally: all patches would change
Re: [korgpolyex] EX800 stopped powering on
2016-02-01 by phunx747@...
Yeah not much has changed, I still need to buy/borrow a multimeter so I can do some better troubleshooting. I did try it on a different outlet in a different
Re: [korgpolyex] EX800 stopped powering on
2016-02-01 by Michael Hawkins
How did you go? BTW, there was one Poly owner I know that moved his studio around and his Poly wouldn t work until he realized that some power equipment was
korg poly 800 integrated pc + mods
2016-02-01 by Aelilab Aelilab
Hello to all, I wanted to inform you that I sell Korg Poly 800 with changing the filter cutoff and resonance, Audio IN, VCF FM, integrated PC. synthesis Korg
Re: [korgpolyex] Riding the Korg Out...
2016-01-29 by Gordonjcp
... You can use the PWMs on the AVR to generate your control voltages. It s better if you don t use analogWrite() from the Arduino libraries and set up the
Re: [korgpolyex] Riding the Korg Out...
2016-01-29 by bperkins211@...
I figured I would make a few of them since I have five chips. 1st one I plan to use as simple VCF with basic cutoff/resonance knobs and fit it inside a Casio
Re: [korgpolyex] Riding the Korg Out...
2016-01-28 by Michael Hawkins
very cool! Now, what are you going to do with it? From: bperkins211@gmail.com [korgpolyex] To: korgpolyex@yahoogroups.com Sent:
Riding the Korg Out...
2016-01-28 by bperkins211@...
Finally! I got it to work! https://youtu.be/nDtjK7ml0eo https://youtu.be/nDtjK7ml0eo
Re: [korgpolyex] Looking for EX800 KLM-614-1 schematic / board layout
2016-01-26 by Michael Hawkins
Which switches work and which ones don t? Be specific. While it is possible for the switches themselves to have problems. And we have a document for how to
Re: [korgpolyex] Looking for EX800 KLM-614-1 schematic / board layout [1 Attachment]
2016-01-25 by studio_1a@...
Gordon, I posted them in the photos section. hope you can view them