I have a Lite a Line that keeps getting stuck in tilt mode and I have to manually trip the tilt relay to get it to reset. I cleaned all the switched on the tilt relay and made sure they were adjusted. I thought I had it but the problem has come back once again. One thing I did notice while testing my first repair was, if I manually trip the tilt bob the game seems to tilt then recover. If I hold the tilt bob in the tripped position for a few seconds I seem to once again come across this "stuck in tilt mode" again where the only way out is to manually trigger the tilt relay. Is that normal? Any thing I should be looking at to keep this thing from getting stuck in tilt mode?