It does sound very similar to mine. I took mine apart to run a wire for the Bluetooth microphone for the new radio/cell phone.
My monitor is still working, touch wood, but it is getting dimmer, now need the brightness turned up full. The camera appears ok. Can’t remember the make.
Ken
2006 Winnebago Outlook 29B E-450.
2012 Honda CR-V AWD
Blue Ox Aventa LX tow bar and Brake Buddy Vantage.