There is a section on the TV lift system found in the Coach Assist labeled "2004-05 TV Lift Instructions – Jerry Emert". Your coach is one year older but likely has the same lift system.
I did a Forum search and Lee Welbanks stated:
"Re: Front overhead TV won't go down
"Your best bet is to give Lift TV a call and speak with on[e] of their tech's 1-877-543-8698, Your manual crank down may be engaged, if it is the unit will not go up and down on electric. You can look up at the left side where the crank end is, if it is pushed in next to the case the unit will not work, get a hook and pull the crank end out."
I did find a company named "LiftTV" by doing a Google search. LiftTV may be able to help you.