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KlH Model 24 Tuner Problem

I recently got a KlH tt and tuner combo. I was told the radio did not work. However, when I turned it on, the radio worked. I quickly shut it off and have not been able to get it to work since. I did notice a fuse under the chassis that is soldered in. I;m not sure if it is for the tt or the tuner. Any ideas I could try?