I have a championship Sprint that has a VGA monitor in it. the game is a mid rez and is wired with it's composite sync (it wouldn't work with separate syncs) to a cga vga converter.
the screen is a little off to the left, fixable.
the real problem is that it looks great for a few min. and then it looks like someone slowly has turned the brightness up all the way. in the menu it's still set at 50%
it will go back to normal if the converter in power cycled, but quickly (2 min) fades to bright again.
I have tried another converter pcb with the same results.
monitor tests fine.
any ideas?
the screen is a little off to the left, fixable.
the real problem is that it looks great for a few min. and then it looks like someone slowly has turned the brightness up all the way. in the menu it's still set at 50%
it will go back to normal if the converter in power cycled, but quickly (2 min) fades to bright again.
I have tried another converter pcb with the same results.
monitor tests fine.
any ideas?

