Greetings. Have roboform 40. A similar problem. Only when you turn on the monitor does not show, you have to press the reset button on the CRTC board to get an image. The CCU COM board has been inspected, the memory chips have been checked on the programmer, and the firmware is available. The LEDs on the boards are lit, as in post #5. Connections between the boards, cables are checked, the boards are reconnected, there is no result. Any other ideas? Or is it just a replacement of some kind of board?