thomson dpl 550ht - no sound trough optics

[e3k]

hi. i am trying to setup a thomson dpl 550ht sound system at a friend. the analogue input works fine as well as the radio.
unfortunately when trying to play via optics: tv -> receiver i have a no sound issue.

Any idea why this does not play? I tried manuals an everything but nothing helps.

Is there a way to reset this device? could not find the correct steps.

Please help!

ps: i have no remote.

 

[Boydk]

Try TV-settings (on TV)/digital out to stereo & PCM.

 

[e3k]

hmmm. stereo+pcm. well that would require a better knowledge of that TV. all i could find was 'turn on optical output'. maybe there are some settings...