Connected PS3 to my anolouge tv and it worked then i used it on a digital tv now it wont work on anolouge ?

I recently bought a PS3 and connected it to my anolouge tv and it worked no probs then i connected it to a digital tv and configured it to the settings of the digital tv and played. now it work back on my anolouge??? there is no picture and no sound on my anolouge tv now when i connect the PS. i have tried to change the settings back to the anolouge connection on my digital tv but it wont change as it keeps recognising the hdmi digital connections. Please suggest how i can get around this when i can even hear or see anything on the anolouge tv whn the ps is connected to change any settings ?