You could have a ad video card. I would check that, also the VGA cable that goes from the computer to the I/O board from the I/O board it goes through relays and is then RGBHV. Have you check the RGBHV cables?
You could have a ad video card. I would check that, also the VGA cable that goes from the computer to the I/O board from the I/O board it goes through relays and is then RGBHV. Have you check the RGBHV cables?
