My built-in DVD unit uses the fold down door method meaning the DVD were being used in a vertical position. In my case this started giving me problems in just a few months of use. My neighbor RV guy doesn't have any problems with his DVD player being used in the vertical position - go figure...
I replaced the DVD with a cheap $30 WALMART stand alone unit and plugged into the system using the provided three RCA type video/sound plugs. Every thing worked out just fine with the built-in amplifier surround sound etc... The stand alone cheap DVD player is still working today since my late 2008 purchase of the 5th wheel trailer.
Roy Ken
My Posts are IMHO based on my experiences - Words in CAPS does not mean I am shouting
Roy - Carolyn
RETIRED DOAF/DON/DOD/CONTR RADIO TECH (42yrs)
K9PHT (Since 1957) 146.52M
2010 F150, 5.4,3:73 Gears,SCab
2008 Starcraft 14RT EU2000i GEN
2005 Flagstaff 8528RESS