Sound field/sound quality operations, Sound field, Speaker level adjustments – Panasonic SC-HT900 User Manual
Page 28: Play a dolby digital or dts source, Press [ î plii, Play a dolby surround or stereo source, Press [ î pl, Play a dolby surround source, Dolby digital and dts, So und fie ld/s ound qu a lity ope ra tions
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