I have a sony a 6300 feelworld monitor and ronin s. The monitor and gimbal and camera all work together and the mcc cable and gimbal and camera work together for the record feature. But when I try to use the mcc cable and monitor the screen goes black. I need help asap.

I have a sony a 6300 feelworld monitor and ronin s. The monitor and gimbal and camera all work together and the mcc cable and gimbal and camera work together for the record feature. But when I try to use the mcc cable and monitor the screen goes black. I need help asap.