I was helping a friend repair his Polaris recently. He had a spare front panel pcb with pots on it. We were planning to steal some pots from that one to replace bad ones on the other board. Then we noticed that they were different pots, with different hole patterns, and not interchangeable. So at least two different styles of sliders were used in different Polaris revs. It may be possible for a good technician to repair the sliders on your unit. He would need to remove the pc board from the synth, desolder the sliders, probably take them apart, bend as needed, re-assemble, and then solder back onto the board. Maybe Paul can suggest a source for replacement sliders for the Polaris. It's often easier to fix up the old ones than to find the correct new ones.
Bob
From: Brinkmann Music <adam@...> To: chromapolaris@yahoogroups.com Sent: Sunday, December 29, 2013 2:48 PM Subject: [chromapolaris] Repair/Replace broken slider
Well, my mint Chroma Polaris was attacked by a falling ride cymbal resulting in two bent and damaged sliders in the filter section on the left hand panel: resonance and sweep depth. They are both loose and nonfunctional. Resonance slider does respond if you press very hard on it.
I have never cracked open the Polaris (no need as the membranes are in excellent shape). Can the sliders be easily replaced (or swapped)? If so, does anyone have two spares or can direct me to a source for parts? Or, is an entire replacement left panel needed? (I hope not!).