Kathrein UFD 170 - Manual (Page 31)

Audio Settings
31
The receiver has an audio output for AC 3 format (Dolby Digital). This
gives you the opportunity to bring cinema quality sound into your living
room. Only connect the digital audio output to an appropriate Dolby
Digital system.
AC 3
The following audio settings are possible:
Soundtrack 1 of 2 2 of 2 3 of 3
Audio mode Stereo Mono left Mono right
Digital output MPEG stereo Dolby Digital/AC 3
Note: Always follow the safety instructions and the operating instructions for
your Dolby Digital system!
Only a few programme providers broadcast the AC 3 format. If no
AC3 signal is received, you can only make the normal stereo or mono
settings and choose the broadcast languages.
Turning Off the Sound - Mute
Press

on the remote control. The sound is turned off. The following
display appears on the screen:
Press

again to turn the sound back on. The normal
volume display bar appears for a short time.
Although you can change the programme while the sound is muted,
the sound is only reactivated if you cancel mute mode by pressing

or adjusting the volume.