OK, should have said LN46_B_650 !
I have set up a Samsung LN46P650. I don't have an audio receiver, so thought I could use a Klipsch 2.1 system for audio as I had been doing with my old TV. However, the new TV does not appear to have a setting to allow the external speaker output level to be controlled by the TV volume. Does anyone know if there is a setting in the service menu that would do that? I know it's a no-no to mess with the service menu but if I knew what I was looking for I'm confident I could get in and out of it without hosing it up.