Digital / Computer noise.
2018-03-28 by c.puidokas@...
Hi Everyone - Been a while for me here. I just finished restoring a Chroma Polaris and have noticed a digital / computer noise in the background of my output.
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Bad Resonance and VCA Envelope
2018-01-15 by ryanrkpm@...
Okay so this synth works most of the time sounds great, but when things start getting funky it glitches up. For instance: I push the resonance up into self
Re: [chromapolaris] polaris voice capacitors-- wont auto tune
2018-01-14 by Eman Mann
One of the more essential steps with any vintage gear... ; )
Re: [chromapolaris] polaris voice capacitors-- wont auto tune
2018-01-14 by Gregory Cox
Just want to interrupt and say thanks Paul youÆve saved me some headaches once again. I shelved my polaris for a while because I was stumped on some tuning
RE: [chromapolaris] polaris voice capacitors-- wont auto tune
2018-01-13 by wasteking1@...
thanks--ill try to investigate next week---i do have an old scope, but am a serious rookie with it. it did seem to affect many voices
Re: RE: [chromapolaris] polaris voice capacitors-- wont auto tune
2018-01-13 by steven pistrich
tjhanks----ill try to check that next week---- i do have a scope, but am a rookie with it...... ill update soon On Monday, January 8, 2018, 7:20:05 PM EST,
RE: [chromapolaris] polaris voice capacitors-- wont auto tune
2018-01-09 by Paul D. DeRocco
... It s almost certainly not the capacitors, because that would likely affect one channel first, and then maybe another one a year later, not all six at once.
polaris voice capacitors-- wont auto tune
2018-01-08 by wasteking1@...
i pulled out my spare polaris from storage--- it had been fine last it was played...and also has new membrane panels--but found that now it wont play in
Just put a pristine Polaris on eBay
2017-11-19 by Paul D. DeRocco
https://www.ebay.com/itm/122816512410 -- Ciao, Paul D. DeRocco Paul mailto:pderocco@ix.netcom.com
Re: [chromapolaris] Re: Polaris needs a home -
2017-10-24 by john
cool tom, may have told you, i am in hawaii, my stuff is in Nor cal.. Emy would be convenient, usually fly to oakland - not sure when, may be months till i
Re: Polaris needs a home -
2017-10-23 by nuwavboy@...
Hey! I d be interested in your matrix rack. I have one, but it s prett beat up, no rack ears etc.... I m in Emeryville. I think we talked about your polaris
Polaris needs a home -
2017-10-21 by johnsound1@...
I have a Polaris I would like to find a good home for - I was a dealer and this was my personal unit, never gigged with, just a home studio instrument. It
RE: [chromapolaris] Replacement keys/keyboard
2017-10-21 by Paul D. DeRocco
... The action was never very tight to begin with. I believe it s a Panasonic keyboard. You can find replacement keys on eBay right now, except for the high
Replacement keys/keyboard
2017-10-20 by phillipcaiken@...
My Polaris continues to run well, but there are issues with a few keys on the physical keyboard, and in general the action is pretty loose. Does anybody have
RE: [chromapolaris] polaris 'frozen' with 90% LED's on
2017-10-05 by Paul D. DeRocco
... One sets the voltage, the other sets the threshold at which the CPU is allowed to operate. The ideal, as I said, is for the DC OK line to turn on when the
RE: [chromapolaris] polaris 'frozen' with 90% LED's on
2017-10-05 by wasteking1@...
we are onto something here---- i turned R17 trimpot clockwise about 45 degrees clockwise and the led went on-- the control panel returned to normal Led
RE: [chromapolaris] polaris 'frozen' with 90% LED's on
2017-10-04 by Paul D. DeRocco
... Yes, that LED should be on. If it s off, either the 5V digital supply is too low, because the supply itself is maladjusted or because there s some
RE: [chromapolaris] polaris 'frozen' with 90% LED's on
2017-10-04 by wasteking1@...
is that LED you describe the one labeled cr-10 on the secondary board? it stays off ---- meanwhile , ive turned the unit on a few times over the last few days
RE: [chromapolaris] polaris 'frozen' with 90% LED's on
2017-10-03 by Paul D. DeRocco
... When you re looking for your keys, the first place to look is under the streetlight. If you have the earlier version power supply, it s possible that the
polaris 'frozen' with 90% LED's on
2017-10-03 by wasteking1@...
i was playing a gig--had my Polaris set up, it worked in the sound check fine-- then turned it off--- turned it on before our set was to start and the Polaris
Membrane panels on eBay
2017-09-26 by Paul D. DeRocco
I ve listed the replacement Polaris membrane switch panels on eBay, to see if there are any potential buyers out there who aren t on this list and haven t
Re: CEM Rev's and tuning?
2017-09-12 by synthparts@...
I ve been selling and using CEM3374s with the latest 1993 date codes without any probs in my Polaris and Matrix-12. I still have a few available if you need
RE: [chromapolaris] CEM Rev's and tuning?
2017-09-09 by Paul D. DeRocco
... I doubt it s the oscillator chips. It s more likely leakage in the sample-and-hold circuit, which can be a bad analog switch, a bad opamp, a bad cap, or
CEM Rev's and tuning?
2017-09-09 by listmicrocode@...
I have a Prophet 600. It s not very well known that if you use the Rev G 3340 (instead of original issue Rev F) that you will need to mod the synth to ensure
New membrane switch panels available
2017-09-08 by Paul D. DeRocco
I have a new shipment of replacement Polaris membrane switch panels. They re still $200 plus shipping. Anyone who needs a set should contact me directly, at
RE: [chromapolaris] Polyphonic Aftertouch
2017-07-20 by conorstrachan@...
Subject: Re: [chromapolaris] Polyphonic Aftertouch Hi Paul Yes the cut-off is all the way up. It works perfectly in channel aftertouch. But when it is PolyAT
RE: [chromapolaris] Polyphonic Aftertouch
2017-07-20 by Paul D. DeRocco
... Is this with the Cutoff Pedal parameter turned all the way up? ... The Yamaha pedal has a different resistance and pinout compared to the Polaris pedal.
Polyphonic Aftertouch
2017-07-20 by conorstrachan@...
Hi there I have tried to get Polyphonic Aftertouch working with the Polaris but there are some problems. When I have it in PolyAT mode on my Ensoniq SQ80 and I
RE: [chromapolaris] External Midi control volume
2017-06-28 by Paul D. DeRocco
... If both envelopes are set to FIXED in the patch, and you re sending data in on the basic channel, the same channel that the internal keyboard plays on,
RE: [chromapolaris] External Midi control volume
2017-06-28 by conorstrachan@...
Hi Paul Well main reason is I have different keyboards all over the place and my main master one is at the desk. I route things all around. I have a board with
RE: [chromapolaris] External Midi control volume
2017-06-28 by Paul D. DeRocco
... It would have to be a difference in the velocity curve. There s no reason to assume they d be the same. Does the MIDI keyboard have a touch adjustment? I
External Midi control volume
2017-06-27 by conorstrachan@...
Hi there, Just wondering if anyone notices a difference in volume when playing the Polaris keyboard or by using an external midi keyboard. It sounds to me
Re: Faulty Envelope Depth
2017-06-27 by conorstrachan@...
Hi thanks That s good to know. Slider was not the problem in this case. It was the 4051. The sliders on mine are really big and chunky they seem pretty solid.
RE: [chromapolaris] Re: Faulty Envelope Depth
2017-06-26 by Paul D. DeRocco
... You can find the schematics on the rhodeschroma.com site. Here are all the assignments, sorted by slider position, left to right, with the non-slider
Re: Faulty Envelope Depth
2017-06-26 by John Leimseider
I have many of the type 2 slide pots for the polaris. They need a little modding to fit the earlier panel boards but they last forever. They were used on the
RE: [chromapolaris] Re: Faulty Envelope Depth
2017-06-26 by conorstrachan@...
Paul you were right with the 4051, I swapped Z4 into Z3 and now the envelope depth is working! Many thanks! Just one question what uses The 4051 in Z4?
RE: [chromapolaris] Re: Faulty Envelope Depth
2017-06-26 by Paul D. DeRocco
... Since you ve already ruled out a cold solder joint on the slider by resoldering it, it s almost certainly the 4051 that the slider connects to. The only
Re: Faulty Envelope Depth
2017-06-26 by conorstrachan@...
I swapped them around and the fader is fine. Any ideas of where to head next to, So the envelope depth control is not responding. It s now definitely not the
Re: [chromapolaris] Digest Number 779
2017-06-26 by John Leimseider
I have many of the type 2 slide pots for the polaris. They need a little modding to fit the earlier panel boards but they last forever. They were used on the
Re: Faulty Envelope Depth
2017-06-26 by conorstrachan@...
I just took it off the board cleaned it, dexoxited it and put the pins back. No luck, still nothing. I m going to swap the keyboard tracking slider and then
RE: [chromapolaris] Faulty Envelope Depth
2017-06-25 by Paul D. DeRocco
... If by pins you mean the things attaching it to the circuit board, then no. It sounds like the wiper contacts on the movable shaft assembly, which bridge
RE: [chromapolaris] Faulty Envelope Depth
2017-06-25 by w.james.meagher@...
For what it s worth I have had great results opening up the Polaris sliders, giving them a decent cleaning, and re-bending the contacts back to where they
RE: [chromapolaris] Faulty Envelope Depth
2017-06-25 by conorstrachan@...
Thanks Paul It got the board off and it appears that the slider does not have very much resistance compared to the rest. I guess as it s unresponsive it must
RE: [chromapolaris] Faulty Envelope Depth
2017-06-25 by Paul D. DeRocco
... Most likely the wiper or elements are dirty, or the wiper contacts are bent. If you remove the slider from the board, you can pry back the tabs that hold
Faulty Envelope Depth
2017-06-25 by conorstrachan@...
I seem to have an issue with the envelope depth slider. It is not responsive. The only one on the keyboard that is. However it is working through the editor in
Re: Changing to 240v
2017-06-25 by synthparts@...
Great, glad to hear it. Doug synthparts.com
Re: Changing to 240v
2017-06-24 by conorstrachan@...
Hi Doug Received the chips today and my Polaris is now 110% operational and all cleaned up nicely. Already started to build up my own patch banks and I am
Re: Midi Control Panel
2017-06-24 by conorstrachan@...
Hi David Thanks for the update. I have tried it out in the demo mode and it works. I ve used CTRL for other synths as it s 64bit and goes into the DAW as an AU
Re: Midi Control Panel
2017-06-24 by davidl3998@...
Hi, I just got an e-mail from SoundQuest support that said the current version of MIDI Quest can run on Mac OSX El Capitan and Sierra. They also said that MIDI
Re: Changing to 240v
2017-06-20 by conorstrachan@...
Hi Doug Thanks for reaching out. That s right I need two chips to be fully functional. Thanks for finding the matching chips. Really enjoying the Polaris so