Thanks for the advice. I tried; still nothing. I will change out the battery and try again. About "writing patches" ...I am clueless. I thought the whole unit was worth about 500-600; I am pleasently surprised to hear the value is higher. Thanks again for helping.

Hi all. I am hoping someone can give me guidance. I am the original owner of a Prophet 600. It was stored for years, and when I opened it there was no output. LED's light. I opened it and re-seated the plugs to the cirucuit boards. Without schematics, I stopped there. Wine Country's repair pricing l...