Grundig xentia lxw 102-8625 ref User Manual

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Press                           button on the remote control.
Press                           button or wait 10 seconds for the display to disappear.
25
Watching TV
Basic Use
INFO - To check the current state 
To turn off only sound
Volume Control
Channel Selection
Use the mute function to turn off the LCD TV sound for a while, when a phone or a bell rings.
Press                           to go back to the channel previously viewed.
increases the channel.
decreases the channel.
Press                           button again to hear the sound again.
Display shows user's setting and selections.
To go back to the previous channel 
increases the volume.
decreases the volume.