> From: James > > You can desolder the sliders off the board and check them > with a multimeter easy enough. Make sure all connections are tight. > > Honestly, I've seen this before where a few sliders were dead > yet the connections and sliders tested good. My fix involved > replacing the 4052 multiplexers (going from memory) impacting > the non working sliders. I've seen 'channels' on these > multiplexers go out leaving some sliders working and some > not. The 4052's are CHEAP and are still made in qty. You can actually check the sliders in place, because they have static 5V across them. Just hook a meter between ground and the wiper, and see if the voltage goes from 0 to 5V as you vary the pot. It's hard to identify a noisy pot with a meter, but you can easily see if it's totally broken. If you get 0 to 5V, but no effect on the sound, then change the CMOS switch. (They're 4051, although a more modern 74HC4051 will work just as well.) -- Ciao, Paul D. DeRocco Paul mailto:pderocco@....com
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RE: [chromapolaris] working better
2012-03-27 by Paul D. DeRocco