If you Google Furrion TV blue screen you will get several troubleshooting checklists and this manual
http://furrion.com/wp-content/upload..._24Sep2014.pdf
which has a very brief troubleshooting reference on point.
Most steps involving checking the power, _quality_ of the power, all the input lines, input source selected, making sure you are not inadvertently displaying signal from a non-signal producing DVD player or other inactive input source, etc. Sorry I can't be more specific but hope this helps.