“In out Rumble Noise from Receivers Speakers I just purchased a LG tv model 55LB5550, trying to hook up my old Sony Receiver STRV200 by using the Dynex DX-SF110 converter. I've entered the LG Tv settings to find the "PCM Option" to no avail. I double...... if not triple check my audio cord placements to the receiver from the Optical/Coaxial Converter, finally the Tv. Am I using the wrong converter??? Or where the hey is this PCM Option if available from this LG Tv? Thank u for your time”