So I bought an used SC-57...
Bad move: The thing is broken
What can be wrong when it shows no picture from the connected source the first time I turn it on?
I have to turn it off and then turn it off again
After that, no problems
But then when I turn it off it can take up to five seconds to turn completely off (the lights in the display doesn't go off at the same time)
At least there is warranty on it
But what is causing this behaviour?