hmmmm... 2014? Could you have the Jensen JRV212T??
MANY posts about 'blank screen' and other failures...
My best 'bandaid' - was removing/unplugging the unit for a day or two and plugging back in... (powering down the RV isn't enough - as it may be connected to both house and chassis depending on how yours is wired (house for radio - continuous clock/memory power from chassis.)
I'm fighting with radio number 2 at the moment - many have replaced them with newer Jensen or other brands.
Not yet retired...
Florida (Michigan transplant)
2014 Hurricane 32A
2000 Infinity (previous)