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Chances are pretty good that you are going to need some help here. It sounds like one of the cables may have broken and that is not a DIY repair for most folks. Some shops won't do this repair so ask around or perhaps have a mobile tech come over to assist you and at least take a look at it. Hope that helps give you some idea of the problem. Please get back to me if you need more or decide you want to try fixing this yourself. All follow ups are included in our fee.
I am adding a link to a repair guide for these that you might find useful. http://easternbridgecompany.us/pdf-manual/pdf-download/jayco-pop-up-repair-manual.pdf