Guys, need help a bit. My brother bought tvix m7000a and yamaha ysp4100 soundbar. However the sound wont come out of the soundbar straightaway. He needs to switch off/on the soundbar after pressing play on tvix then only sound comes out.

I've already set tvix to hdaudio passthru as 'on' to bitstream the .mkv files. There's no problem with ps3 n xbox360.

I tested the 7000a to my onkyo receiver n there's nothing wrong wh it so confirm it's the communication btw tvix n yamaha ysp4100. Do u guys know of any compatibility issue btw ysp 4100 and tvix m7000a? Or it's just my bro's ysp 4100 is a defect unit.

Appreciate ur help. Thx!!