[Help Identify this crossover for La Scala's]

Thanks for the responses i believe it is AA not quite got all the gunk off but i did ohm the woofer and it was a connection that was loose...  the speaker was 3.90 ohm

and both tweeters show 18 ohm...and no sound from either one...

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[Help Identify this crossover for La Scala's]

Thank you Bruce, Yes I have a Fluke So will get busy now and thanks everyone...

[Help Identify this crossover for La Scala's]

Sorry the pic didnt load let me try once more...

[Help Identify this crossover for La Scala's]

I have been given these two different La Scala's one works one has No Bass...They also have Two Different Crossovers in each unit. Here is the first one the none working Bass is pictured...These are in Dire Straights of some TLC...If by chance where could I find a Schematic or Service Manual...Thanks for All who Answer...