Cycles through the front 
panel display’s brightness 
options (dim to bright, off)
Toggles the mute function, 
if available. 
By default this key always 
operates the AMP Mute.
Sends Preset Down 
command
Sends Preset Up command
Decrease (–) and increase 
(+) amplier volume
Fast rewind (DAB rewind 
radio)
Play (DAB rewind radio)
Toggles pause of playback 
(DAB rewind radio)
Fast forward (DAB rewind 
radio)
Selects FM band on the 
DAB tuner
Stops playback (DAB 
rewind radio)
Start recording (DAB 
rewind radio)