My Arcade monitor has no red color.......Help!!

[robotron]

My Golden Axe cab has one problem. The monitor does not display the color red......be for I buy a monitor, I want to know is that the problem or is it the board?......has any one else had this problem of colors missing?.....everything else works fine just no red color displayed in the monitor.........Thanks.....Robo.

[MonMotha]

Fortunatley, it's easy to tell if the problem is the monitor or the board.  Just take the red and one other video color line going to your monitor (green or blue) and swap them.  The picture will look really weird, but if you now have red (where there should be another color) and lack the color you swapped with (where there should be red), then you know the problem is with the game board.  If, however, you still get no red, but still have whatever color you swapped with (where there should be red), then you know the problem is with the monitor.