I own an Ensoniq MR76 (an older keyboard, I know, but I love it dearly). A recent lightning storm power surge seems to have "zapped" my keyboard's main and auxiliary OUTs. When I connect board to amplifier, there's simply NOTHING there. However, my headphone jack still works, and can be used to connect to the amp. Couple of questions: 1) For anyone who may have encountered a similar problem, or knows enough about the guts of a typical keyboard -- what is involved in FIXING the main and aux. outs? Is this a salvageable/practical repair? 2) What are the sound quality differences between using the main/aux. outs and the headphone jack? What performance sacrifices will I experience? (I mainly use the keyboard/amp for personal enjoyment and "garage band" jamming). Thanks for any guidance. Life sucks, and then you get struck by lightning. jeff