H
ENTER button
This determines the selection.
I
BACK button
This returns to the previous screen.
J
System buttons
These perform playback related operations.
K
SOUND MODE buttons (0 1)
These select the sound mode. 
 (v
 p. 55)
L
Remote control signal transmitter
This transmits signals from the remote control unit.  (v
 p. 6)
M
POWER button (X)
This turns the power on/off. 
 (v
 p. 37)
N
Preset memory button (MEMORY)
The current broadcast station that is preset.  (v
 p. 48)