Help! My Polaris got damaged.
2017-04-07 by m.sislack@...
Hello alltogether! Recently got a Polaris. When playing harder on the keyboard it suddenly seemed to crash and rebootet some way and now no sound, response to
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Getting close!
2017-04-07 by nuwavboy@...
Old Panels pulled off and metal cleaned All CEM s and missing IC s except for the noise generator are installed. Power supply rebuilt and outputting correct
RE: [chromapolaris] Help with moving forward with this Polaris
2017-04-07 by Paul D. DeRocco
... That s true. You can t combine 6116s with 6264s. But the Polaris measures the amount of available RAM, so any number of pairs of 6264s will work. -- Ciao,
Re: just to rub salt into the wound
2017-04-07 by martinp@...
Look for some 3M 88 electrical tape. It is thicker & higher quality than just about anything else out there. Marty
Re: [chromapolaris] Help with moving forward with this Polaris
2017-04-07 by David Clarke
... It may go without saying - but just for clarity, it wouldn t be expected that you d keep the existing two 6116 chips and additionally install six 6464 s -
RE: [chromapolaris] just to rub salt into the wound
2017-04-07 by Paul D. DeRocco
... It s purely cosmetic. You could probably cut some tape to fill the gap between the panels, and then put a wider strip of black tape, even electrical tape,
RE: [chromapolaris] Help with moving forward with this Polaris
2017-04-07 by Paul D. DeRocco
... I wouldn t replace the regulators, as long as they re putting out the right voltage. -- Ciao, Paul D. DeRocco Paul
just to rub salt into the wound
2017-04-07 by nuwavboy@...
discovered the center plastic strip is missing...pulled the old membranes off... ANY possibility of finding one of these?
RE: [chromapolaris] Help with moving forward with this Polaris
2017-04-06 by nuwavboy@...
Was going to replace all the voltage regulators as a preemptive measure...Is that not really necessary? Ive just had 2 synths recently with bad regulators -
RE: [chromapolaris] Not Mysterious button behavior
2017-04-05 by <paul.krull@...>
Hi David: You are describing the symptoms of the membrane tail failure and you can either try to find a way to trim that broken ribbon while not breaking other
Mysterious button behavior
2017-04-05 by davidl3998@...
Hi everyone, been lurking a while and now it looks like it s time for me to post. Has anyone had an experience where one or two buttons on a Polaris stopped
RE: [chromapolaris] Help with moving forward with this Polaris
2017-04-03 by Paul D. DeRocco
... I believe 27256 will work, as long as you program the upper half, rather than the lower half, but I haven t tried it. But there s probably nothing wrong
RE: [chromapolaris] Help with moving forward with this Polaris
2017-04-03 by nuwavboy@...
ok - - ordered 6 6264 s All remaining CEM chips and misc missing IC s Re-capped the power supply, and will be installing new voltage regulators soon. Will be
RE: [chromapolaris] Help with moving forward with this Polaris
2017-04-01 by Paul D. DeRocco
... It might run with four 6116s, but not two. But if you have to buy anything, buy 6264s, and you might as well fill it up. They can t be that expensive. --
RE: [chromapolaris] Re: Slider?
2017-04-01 by harvey_d
It seems I ve put my spare parts somewhere safe. ;) I did measure the eBay parts installed in the Polaris, though... they sit about 0.225 above the top
RE: [chromapolaris] Re: Slider?
2017-04-01 by nuwavboy@...
The slider when measured from the circuit board to the top of the slider is 1 . The length is 1 3/4 . I will put some photos up.
Re: [chromapolaris] Help with moving forward with this Polaris
2017-04-01 by David Clarke
... Looking at the photos on the Polaris site (e.g.,
RE: [chromapolaris] Re: Slider?
2017-04-01 by Paul D. DeRocco
... wVL1V-0uK ... How much shorter? Would it be possible to put a spacer between the body and the board to lift the slider up, and have the slider pins still
Re: [chromapolaris] Slider?
2017-04-01 by w.james.meagher@...
Yeah, I ve encountered two slider types which is why I asked for a photo before confirming I ve got one for you. Sent from my iPhone
Re: [chromapolaris] Slider?
2017-04-01 by Bob Grieb
The sliders were changed at some point in the Polaris. I was helping a friend repair his Polaris which had a bad slider. He also had a spare front panel from
Re: [chromapolaris] Slider?
2017-04-01 by w.james.meagher@...
Can you email me an image of the slider? I might have an extra left over from a couple Polaris I refurbed a few years ago. Sent from my iPhone
Re: Slider?
2017-04-01 by harvey_d
I bought these:10K SLIDE POT Linear Potentiometer Slider ALPS - AUS STOCK | eBayGood fit to the PCB, but the posts are shorter than the proper ones. If I
Slider?
2017-04-01 by nuwavboy@...
and to top it all off, one of the sliders is broken - I read that someone had a problem with a slider from syntaur not being the correct size, mine reads 435E
RE: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by <paul.krull@...>
I’m sure it’s not an easy decision but congratulations on committing to keeping another Polaris alive. I went out and spent $4 today on M4
RE: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by nuwavboy@...
Well, went ahead and bit the bullet, bought new 3372 s and 1 3374 - ordered remaining missing IC s, recapped the power supply, will change out the voltage
RE: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by Bob Grieb
I wanted to check my Polaris before replacing the membranes too. I was able to wire up some switches in place of several front panel ones to run a few tests.
RE: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by nuwavboy@...
Thanks for the help on this Paul - Where it stands now - powers up, but lights come on, most of them, turn off and back on, different lights come on..etc...but
RE: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by Paul D. DeRocco
... There are two 74HC374s. Z56 is essential for running, but Z22 is only necessary for the Chroma Interface. But even if it doesn t run, you won t blow
RE: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by nuwavboy@...
ok, recapped the power supply, replaced the 74sl244, so I m missing the MM5387 noise generator One CEM3374 ALL CEM3372 s ONE SN74HC374N Am I going to hurt
Re: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by David Clarke
... A copy of the service manual (including schematics) is available on-line here: http://www.rhodeschroma.com/?id=polarisservicemanual There s also a copy of
RE: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by Paul D. DeRocco
... Z18 is a 74LS244 octal bus driver, which you can get anywhere for cheap. Z64 is an MM5837 noise generator, which isn t common, but I probably have some
Re: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by nuwavboy@...
Well, I realized I have a Prophet 600 that has 3372 chips, so I think I m going to try and redo the power supply first and take it from there... Can anyone
Re: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by Bob Grieb
I would say it depends on what your choices are. If you could return the Polaris and get your money back, then buy a different one, I would say that would be
Re: [chromapolaris] Help with moving forward with this Polaris
2017-03-31 by Florian Anwander
Hello Tom ... It looks someone had a reason, that he used this Polaris as a spare part reservoir. It must have stopped working, before he decided to bone it.
Help with moving forward with this Polaris
2017-03-31 by nuwavboy@...
I ve sent a message that doesnt seem to be posting, maybe because of attachments? I ll post pictures seperately... Soooo....got the Polaris, it s missing the
Re: [chromapolaris] Membrane replacements
2017-03-30 by Gregory Cox
Yea.. that would have been cool but I donÆt think Paul was planning on doing that everà I asked too. Even if there was a halloween version youÆd probably
RE: [chromapolaris] Membrane replacements
2017-03-30 by Astraeus000@...
My 2nd Polaris is holding out in hope for the Halloween colored panel replacement if it ever comes :) Sent from AOL Mobile Mail On Thursday, March 30, 2017
Lightly used Polaris for sale
2017-03-30 by johnsound1@...
I have a Polaris in storage in Calif that I originally bought while a Fender dealer. (one owner). It was used as my store demo unit and in a home studio
RE: [chromapolaris] Membrane replacements
2017-03-30 by Paul D. DeRocco
... I ve got them for $200 plus shipping. Give me your address and I ll give you an exact quote. I accept PayPal payment. At the moment, though, I m on a
Membrane replacements
2017-03-30 by nuwavboy@...
Should be getting my non-working Polaris today - Pretty much assuming the panels are going to be fried - How do I go about purchasing new panels? thanks! tom
Re: Non-working Polaris on the way!
2017-03-26 by Benjamin Kuris
One of my Polaris units has that problem-- usually gets worse when it hasn t been turned on in a while. I typically turn it on/off and find it boots eventually
Re: [chromapolaris] Non-working Polaris on the way!
2017-03-26 by Gregory Cox
Hi Tom, I literally just got mine this week from Paul, so I think he should still have them available :) Chances are, once you install the membrane panel all
Non-working Polaris on the way!
2017-03-25 by nuwavboy@...
Hello everyone! Just picked up a Polaris thats described as powering on, all lights light up but does not respond to button pushes and does not produce sound
Re: [chromapolaris] Freezing and memory loss
2017-03-24 by Gregory Cox
Hi Paul, Thanks for the suggestions. Last night I partially lifted each of the ram and CPU related ICs, IÆll keep an eye on it over the next few days to
RE: [chromapolaris] Freezing and memory loss
2017-03-23 by Paul D. DeRocco
... You might try partially unseating and then reseating various chips, to make sure the connections in the sockets are clean. Just pry them up a little and
Freezing and memory loss
2017-03-23 by adhmzaiusz@...
Howdy, so there s this problem my polaris has always had. I tried to do a bit of reading on this, but basically my polaris randomly freezes and when it is
Re: [chromapolaris] EPROM Programming problem
2017-03-02 by Nekoma
Thank You Paul , I’ll look forward to reinstall rev 9 . I’ll let You Know , if everything goes well or not . Please. Thanks. Ciao sukhoy27@yahoo.com ...
RE: [chromapolaris] EPROM Programming problem
2017-03-01 by Paul D. DeRocco
... In a very old instrument, dirty contacts can always be a problem. Glad you found it. ... It doesn t matter whether you use two 16K EPROMs or four 8K
Re: [chromapolaris] EPROM Programming problem
2017-03-01 by Nekoma
Dear John and Paul thanks for help ! I Solved a strange problem : The sound when playing from bank A 1 to the last tone bank, step by step became zero sound.
RE: [chromapolaris] Re: EPROM Programming problem
2017-01-25 by Paul D. DeRocco
... I think he s referring to jumper settings. But if you erase and reprogram the old EPROMs, that won t be an issue. -- Ciao, Paul D. DeRocco