2014-04-30, 08:16 (This post was last modified: 2014-04-30, 08:17 by fritsch.)
Quite easy: The TV can only forward AC3, which is quite lucky for you 90% of TVs out there can only forward 2 channel PCM. Disable DTS, Enable AC3 transcode option and everything (not PCM) should get out as Dolby Digital.
First decide what functions / features you expect from a system. Then decide for the hardware. Don't waste your money on crap.