They don't have to obey TV settings and may output some audio the decoder can't handel. Remember this is a common complaint.
Be sure to set TV and apps to simple stereo or PCM. If this setting is missing call Samsung to locate it.
Hi,
I have done some research in how to hook up my TV to sound system and it looks like I have two options, ARC with the HDMI or using a DAC with the optic cable to RCA inputs.
I got hold of a DAC and plugged it in. With external devices (eg Wii U, Playstation) it works fine but with anything of the smart TV apps or TV stations I get no sound, that includes whether I have the setting switched to Optic or regular on the TV settings.
I tried the HDMI from the ARC to the sound system but I'm wondering if our sound system is too basic or old to have that as that doesn't work at all.
So what I am wondering is mainly how I can get the TV based sound to play from the sound system, what I am missing.
Here's the models:
Samsung 6300 60" TV
Samsung DAV-TZ140 Sound System
Prozor DAC
Many thanks for any help, I've been fiddling to no avail the last couple of days!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic