Don't have any idea if your Springdale is wired the same as our Cougar - the DS's Springdale is the same as our 5er. When we use CG cable, we remove the little jumper cable from the duplex wall plate and then connect the t.v. lead directly to one of those cable fittings (don't remember if it is the top or bottom - mine is opposite from my DS's).
I have read that some of the other members are able to simply turn off the booster without moving the cables, but, we have to physically re-connect the t.v. cable lead to one of the fittings on the duplex wall plate.
FWIW - hope this helps