I have a Sony kd-xe8599 TV and Sony ht-xf9000 soundbar. Their volume level can not be the same. For example when TV volume is 50,  I turn the soundbar on and sound bar volume is 50 I turn down the volume to 30. Now tv should be 30 too if I disconnect the soundbar to use only tv's sound. But when I do that,the tv volume is still 50. Before I had a LG sound bar and it worked very good, you control both tv and sound bar volume always at the same level with tv remote. Sony can't do this? Anyone help me please. Thanks a lot.