Topfield FREE TO AIR TF3100FEP PRO - Manual (Page 9)

REM
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CONT
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REMOTE CONTROL UNIT (RCU)
Stills the playing picture.
Changes the terrestrial TV and Satellite mode.
Selects LEFT/RIGHT/MONO/STEREO sound function.
Selects the subtitle language list for the current service.
Enables the teletext with software emulation.
Displays the favorite channel list.
Selects function. (F1)
Selects function. (F2)
Selects function. (F3)
Selects function. (F4)
Selects the TV/Radio mode.