Airplay music interrupted when TV is off

[jbecicka]

I have my RPI3 connected to HDMI splitter, which is connected to Samsung TV and also to using SPDIF to my sound system. I'm trying to send music from iPhone to RPI through Airplay. Everything works perfectly, when TV is ON. When I switch TV off, the music start to be interrupted. Let say every 10-30s there is a small gap in the playback. But it really happens only when TV is off. If Tv is ON, everything works perfectly. I've already tried to turn off all the power saving features to disable power saving mode, when RPI gets off signall from TV, but nothing helped. Any ideas?
I have latest xbian installed on my RPI 3.
Thanks,
Jan