I have 2 arcade monitor chassis' that I need repaired. Both are Wells Gardner k7401 with P763 deflection boards. Since they are the same I tried them on the same game (golden tee). One has sound but no video at all (no light in monitor neck). The other does turn the monitor on but only has a white line running horizontally across the monitor. I was hoping to be able to research and then fix them myself but no luck so far. How much do they cost typically to get fixed and where? The games aren't worth very much so I'd like to get them fixed for
a low cost.