Hello, My name is Jose from Spain, I have also a 945 RDs receiver and last months it's happening to me the same. I solved by reseting the receiver. Under the "Input Selector" there is the place where using a clip you can reset it. Try it. I have arrived to the conclusion that inside the receiver it has a battery that trought the years is now uncharged and it doesn't work and when the receiver is completely switched off. It lost its memory. Try it.