I have a good player's machine with an issue I can't figure out. Wonder if anyone can help. My GI and red lights on the back wall sometimes come in fully but are generally always at a low flicker (can't play with room lights off). My lights at the scoop come in and out. Wires look fine. Is there perhaps a poorly seated plug somewhere to explain this? I've looked all over and can't figure it out. Have not gotten out the multimeter...