Good day all. This is my first post and first set of Altec speakers!!! I have recently aquired a very nice set of Santana speakers. Problem is, one of the tweeters does not work. I have taken the front cabinet off so that I could see the back of the driver to look for a loose wire or something simple. No luck there. The numbers stamped on the driver are 50 03 03108501 and 137 7304 N. How do I go about troubleshooting the problem with this tweeter? Any help is greatly appreciated. Thank You, Patrick