Re: Osc 2 mod issues on just one voice
2013-02-26 by Eric Frampton
It ended up being a couple of random things. Right out of the gate, ID10T fault: I was poking at the wrong voice channel. When I started probing at the correct
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Re: Osc 2 mod issues on just one voice
2013-02-25 by sukhoy27@...
... Hi Paul , I agree with You . I do not know Eric did all service check ! I think that swapping out the two 4051 s is a great idea. Ciao Mario
Re: [chromapolaris] Osc 2 mod issues on just one voice
2013-02-25 by K S3
They have them here http://www.futurlec.com/ICADC.shtml ________________________________ From: Eric Frampton To:
RE: [chromapolaris] Osc 2 mod issues on just one voice
2013-02-25 by Paul D. DeRocco
... I wouldn t bother with an ADC0804. That won t fix something that only affects one voice. I suspect there s a hardware problem somewhere in the voice, which
Re: [chromapolaris] Osc 2 mod issues on just one voice
2013-02-25 by Eric Frampton
Yep, I ve done the whole service routine, and it all calibrated up just fine. Unfortunately, I don t have any spare ADC0804 s to toss in there. Where would I
Re: Osc 2 mod issues on just one voice
2013-02-25 by sukhoy27@...
... Hi , did you try to follow the test as indicated in the Service Manual , just like Lower Function D , 4 and look if led over Master Volume slider Turn on
Osc 2 mod issues on just one voice
2013-02-25 by Eric Frampton
Hi folks - So I m finally making some progress getting this Polaris back up and on its feet. This one last issue has me stumped, tho . On one voice only (#2 of
Re: [chromapolaris] strange VCA envelope behaviour
2013-02-21 by james meagher
Thanks Rob - I ve talked to Doug off list and plans are in the works. Cheers, James ... -- C est La Guerre Moving Pictures Inc. 364 Home Street Winnipeg,
Re: [chromapolaris] strange VCA envelope behaviour
2013-02-21 by Rob Currier
There are a few guys who are willing to burn the EPROM chips for you. Here s one: http://www.sounddoctorin.com I believe he has the Polaris EPROMs ready to
Re: [chromapolaris] strange VCA envelope behaviour
2013-02-20 by james meagher
... The aforementioned problem is recurring, and now happens very shortly after a reboot. Do you have a suspicion which EPROM could be the culprit given the
Membrane panel connectors to circuit boards Trio-Mate
2013-02-18 by stanleykenton59
Hello, I recently restored my Polaris using the new membrane panels from Paul. I had pretty beaten-up connectors from previous attempts at fixing my broken
Replacement LEDs for Polaris
2013-02-18 by stanleykenton59
Hello, I recently restored my Polaris and discovered I had some non-functining LEDs. The LEDs used in the Polaris are 4mm, 60 degree, diffused with 40mcd
Re: Resurrected Polaris will not hold memory
2013-02-18 by stanleykenton59
We have memory Captain! The diode was the problem. I put in a new one and everything works great. I bought the Polaris in 1990 for $100. Eventually it made
RE: [chromapolaris] Chroma Polaris upgrade???
2013-02-16 by Paul D. DeRocco
... I ve toyed with the idea of a Digital Polaris, replacing the guts with a modern soft synth, but that ll have to wait until after I ve finished the Digital
Chroma Polaris upgrade???
2013-02-16 by james meagher
I ve also been wondering lately if there s ever been any talk of an modern upgrade of some kind for the Chroma Polaris? So many vintage synths now have upgrade
Re: [chromapolaris] strange VCA envelope behaviour
2013-02-16 by james meagher
Thanks a lot Paul. That s kinda what I figured . . . but I m so often wrong it s nice to have suspicions confirmed. I ll get googling on how to reprogram of
RE: [chromapolaris] strange VCA envelope behaviour
2013-02-16 by Paul D. DeRocco
... That sounds like software rather than hardware--something corrupting a variable in RAM, which gets reset when you reboot. If things like that recur, it
strange VCA envelope behaviour
2013-02-16 by james meagher
Last night while programming away blissfully I suddenly noticed that the Decay and Release on my VCA were acting oddly. Instead of diminishing amplitude
Re: Master Volume Fader
2013-02-14 by karmakater
Thanks for the information Paul, i will check this out these days as far as i can and hope to be lucky. cheers Harald
RE: [chromapolaris] Re: Master Volume Fader
2013-02-13 by Paul D. DeRocco
... Yes, it s pretty easy. If you can t find a 2SA1029, any small PNP transistor should work, like a 2N3906, as long as you figure out which leads are which.
Re: Master Volume Fader
2013-02-13 by karmakater
Hi Paul, this Polaris is mine, i already changed the panels & this works fine.and yea, i can turn on the TUNE LED and get plus-or-minus, so i think the slider
RE: [chromapolaris] Master Volume Fader
2013-02-12 by Paul D. DeRocco
... When you say Tune One works, are you referring to the auto-tune function, or to the slider function when the LED is on? If you can turn on the TUNE LED and
Master Volume Fader
2013-02-12 by karmakater
Hi folks, i ve got a problem with the master volume slider it doesn t work when i try to regulate the volume. but it looks like the physical fader is ok, the
Re: [chromapolaris] howto sysex dump ?
2013-02-09 by David Clarke
... Check out Paul DeRocco s reply to this general topic from 2009: http://launch.groups.yahoo.com/group/chromapolaris/message/620 In short - there s no one
howto sysex dump ?
2013-02-09 by anderselo
I have sysex librarian on mac os x and I want to save all my patches. But I can t figure out how to initiate a sysex dump!? My polaris is also running the rev5
Re: [chromapolaris] Chroma Polaris Runs hot crashes
2013-02-08 by Rob Currier
It sounds like one or more of your voltage regulators may need replacing. It could also be a failing component that is drawing too much current. Check the
RE: [chromapolaris] Chroma Polaris Runs hot crashes
2013-02-08 by Paul D. DeRocco
... Under normal conditions, the heat sink gets pleasantly warm to the touch, not hot by any stretch of the word. The only thing I can think of that would make
Chroma Polaris Runs hot crashes
2013-02-08 by pterodactylrecords
My Chroma Polaris get really hot just stitting there. When turned on I play it occasionally during the session after a good while it gets quite warm where the
RE: [chromapolaris] near broken mod lever
2013-02-08 by Harvey Peekar
much appreciated, thank you. ... From: Paul D. DeRocco Subject: RE: [chromapolaris] near broken mod lever To:
RE: [chromapolaris] near broken mod lever
2013-02-08 by Paul D. DeRocco
... The only off-the-shelf parts are the potentiometers, the Molex connector, and the wires between them. The levers themselves are custom parts, as are the
near broken mod lever
2013-02-08 by Harvey Peekar
hello chromas i was wondering if anyone knew what kind of levers are used for the mod lever on a chroma polaris 2? does anyone know where to get them?
Re: Resurrected Polaris will not hold memory
2013-02-07 by stanleykenton59
I measured the current flow both directions and there was no conduction either way. I noticed the glass casing was broken and the diode just basically broke in
RE: [chromapolaris] Re: Resurrected Polaris will not hold memory
2013-02-05 by Paul D. DeRocco
... You can save yourself the trouble if it s not. With the power off, measure the voltage on both sides of the diode. If the difference is more than, oh, a
Re: Resurrected Polaris will not hold memory
2013-02-05 by stanleykenton59
Dear Dave and Paul, Yes, my Polaris will hold all patches and settings while the main power is on. Where I checked the battery voltage was simply at the
Re: [chromapolaris] close up pic
2013-02-04 by Mario Faelli
Hi Bill , Here are some photos ! As you can see at first you can see the Jack , and the other photos with the three jack , replacing HI out , Low out . Phones
Re: [chromapolaris] close up pic
2013-02-04 by Bill Deaux
Yes, please send the photo! Grazie Wherever you go, there you are. ________________________________ From: Yahoo Mail To:
RE: [chromapolaris] Resurrected Polaris will not hold memory
2013-02-03 by Paul D. DeRocco
... CR1 is the most likely culprit. If anything even momentarily shorts the memory power line to ground, that will blow out. That could be diagnosed easily
Re: [chromapolaris] Resurrected Polaris will not hold memory
2013-02-03 by David Clarke
... Brett - the batteries are going to be used to power the RAM, but only when the unit is shut off. When main power is applied to the unit, the RAM will be
Resurrected Polaris will not hold memory
2013-02-03 by stanleykenton59
I recently resurrected my long non-functioning Polaris thanks to the new membrane panels from Paul DeRocco and a DAC obtained from John Leimseider (thank you
Re: [chromapolaris] close up pic
2013-02-03 by Yahoo Mail
I understand , I changed the old Type Jack with new one more stronger. If you want I can email a photo of these new jack, and cabling . ciao
Re: [chromapolaris] close up pic
2013-02-03 by Yahoo Mail
Re: [chromapolaris] Polaris parts
2013-02-03 by Yahoo Mail
Dear Paul, thanks to your suggestion from SERVICE MANUAL ,Today me and My Friend FRANCO TOZZI I4UQK finally complete to test and REPAIR the Polaris !!!!
Re: [chromapolaris] close up pic [1 Attachment]
2013-01-29 by Bill Deaux
thanks for the type of jack, I have the schematic already though, I was looking for an actual photo taken of that part of the inside chassis where the jacks
Re: [chromapolaris] close up pic
2013-01-29 by Yahoo Mail
Hi , I had same problem, and substitute the High Output jacks with insulated Mono Jack with internal contacts Normally closed, as you can see in the schematics
close up pic
2013-01-29 by Bill Deaux
Hi folks, Thank you for all the support I have seen in this group. I am an original polaris owner. Sometime in the years since I bought it one of the 1/4 in
Service Manual on eBay
2013-01-28 by Chris Ryan
Polaris Service Manual: item #370746862840, USD$20.00. Original, and appears to be in good condition. Chris
Re: [chromapolaris] Polaris parts
2013-01-21 by Mario Faelli
Seat Paul , I follow your instructions , trying to we ll examine circuits and connectors !!! It was the new Audio Jacks isolated from chassis replacing the old
RE: [chromapolaris] Re: new panel
2013-01-18 by Paul D. DeRocco
... They re $180 a set, plus shipping. I ship insured Priority Mail, and accept payment via PayPal. If you give me your address, I ll give you an exact quote.
Re: new panel
2013-01-17 by Carlos
Hi, I m also interested in a panel replacement kit. thanks, Carlos
RE: [chromapolaris] needing help diagnosing faulty right panel
2013-01-13 by Paul D. DeRocco
... So when you hold your finger on UPPER FUNCTION, does its LED light up until your take your finger off? Or does it flash? Or does it do nothing usually? Do