I am trying to replace the poly switches in my SDA2's because the tweeters turn off after awhile. Ken sent me 2 switches and an instruction sheet but the instrutions do not seem to match. I purchased mine in early 1986. I am facing the following problems:
1. After removing the sub-bass radiator I do not see the square circuit board mentioned in the instruction instead I see 2 identical circular boards. One connected to a large coil and one connected to the speaker wire input so I cannot tell which is the crossover network
2. The intructions talk about removing the wire harnesses but there aren't any. There are a few clip ons but that is all. Plus some of the other wires are soldered in so i am not sure what goes where.
3. Finally, I am not sure which item is the poly switch needing replacement. Does each speaker require 2 poly swiiches?
I would appreciate any advice and/or diagrams