no sound, dial lights out. but function lights on. looking at the power supply, it appears that if the function lights are on, it is possible that the tuner, eq, phono etc all have power as L/R channels and the dashboard feed from different windings. anyone ever run across this failure? I told him to take take tape out and feed aux in, on another amp somewhere and see if tuning the 1250 produces signal... what is common here? xformer failure?