Hi, Thanks for your help...but I don't know where and how to start :((( How do I check if the oscillators are outputting anything? I've touch the first SSM2044...
My guess is that when one thing is not like other "identical" things, something is wrong. Of course, that would only account for one voice not working. When...
If you don't know where to start, you'll need to find someone who does or do some study?on electronic troubleshooting - maybe check on the web for some...
If you need for your Polysix computer board. This is the CPU used on that board. I'll sell it for 60$ including shipping. Write to: gil_we(at)yahoo.com...
Hi, Here's a nasty KLM-367 problem which has been sitting on the bench for the last couple of days, whilst I scratch my head. I repaired the board orginally...
Just as a follow up you might be interested to know that I managed to resolve my problem. I was very suspicious of the comparator IC6 being swung over at -15V,...
Hello there! I'm brand new to the group... just unearthed my dad's old Polysix today and got it up and running. The contacts on many of the keys needed...
My PolySix suddenly got out of tune, so I changed PC-1 to a VTL5C3 and R93 to a 1K2 resistor. However the PolySix still sounds terrible. Any suggestions for...
Hi Peter, So we'll assume the changing those two components made no difference and you are still left with the original problem? Can you confirm that all of...
Thanks a lot Andy! :-) All voices sounds equally bad. Here are my readings (after at least 10 min. warm-up): TP-J7 = 14.94V OK TP-R18 = -14.93V OK TP-J2 =...
I was thinking... Polysix has 4 LFO's [pwm, frequency, effect, arpegiator]. I was wondering how to make individual inputs and outputs to each lfo? using this...
Hi Peter, I am afraid we can't make that assumption until the logic that controls IC31 has been tested. This device is basically a switch. You apply a binary...
I always thouht the P6 had a single LFO (MG) which was routable to various destinations via SW5. The control for this is done via the CPU so any modifications...
Thanks Andy, The LEDS (D10) does light in order in polymode (which I think was what you meant?) -in unison they all light simultaniously. In Polymode all...
Peter, The logic probe measures whether logic states in TTL or CMOS circuitry are a binary 1 or 0. Remember we talked about how the binary pattern on lines A,...
Hi Peter, Your P6 problem is really starting to bug me! Could you take a voltage measurement from IC17 between pins 5, 6, and 7 and ground? It will be...
Here are my measurements: 5: -9.90v 6: -9.92v 7: -8.55v Also I discovred an interresting thing -voice 3 + 5 are slightly distorted -sounds like mg (running at...
Peter, The act of you placing your DVM probes in-circuit is changing the eletrical characteristics of it. Hence, the changes in the sound. Did you I hear you...
Hi Andy Sorry to confuse you -all controlls works as they should. I just wanted to clearify that the distortion on two of the voices wasn't caused by either...
I was thinking about making switches or inputs/outputs to set destinations and sources of modulation. I can remember that someone has made similar mods...
Hi Peter, Lucky you! My processor board was totally frazzled by flying nickel cadmium powder! Just wanted to check I understood you OK with regards to the...
Thanks Andy! I really appreciate your help with my beloved Polysix. Last night I tried to switch the VCO's (SSM 2056) but no change in which voice was...
Im no tech-pro, but i was having an unusual 'out-of-tune-voice' problem with my Chroma Polaris that 'experts' on the polaris users group said was caused by bad...
Sorry, I guess I mean power supply. My arp has problems keeping a consistent speed. Though the power supply might be going bad. ... maybe from Radio Shack or ...
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