Regal 42SC Owner's Manual page 318

Chapter 9
ELECTRONICS-CAMERA MONITORS
If a camera does not function check the following:
1. Make sure the cable is tightly connected and it is free
of corrosion.
2. Check system fuses and breakers.
3. Check that the plotter is set up properly to view
the camera image via the display. Check the optional
equipment operation for more information.
4. The camera has no servicable parts.
6