Originally Posted by Englishman
do the lights a radio work work with shore power disconnected? if the don't check for corrosion on the wires leaving the battery you will also find a couple of 40amp terminals/breakers that may be corrode or gone. the power jack connects directly to the battery so it sound like a bad battery or bad ground. Connect the battery to the TV with jumper cables and see it the jack or sliders work.
I owe you big time, Englishman. I went out this am and found a low charge on the battery after its been plugged in since my post. Looked at the battery and there was some corrosion. Cleaned all leads with steel brush and sandpaper and viola...my jack works! Went in and tried the slide outs and viola...they work too! Thank you so much for the advice. Saved me a ton of time and money. You are the best! Happy trails!