LEDs (indicators)................................(36)
SYSTEM CALL buttons......................(37)
System buttons..................................(32)
HOME THX CINEMA button..............(49)
Surround buttons...............................(54)
Mode selector switches ....................(32)
Tuner system buttons..................(32, 57)
Test tone button.................................(46)
SYSTEM SETUP button.....................(18)
Multi source button ...........................(43)
USE/LEARN selector 
button.................................................(36)
INPUT MODE selector 
buttons...............................................(40)
Input source selector 
buttons...............................................(40)
Remote control signal 
transmitter .........................................(31)
Master volume control 
buttons...............................................(41)
SURROUND PARAMETER 
button.................................................(54)
Channel select/enter 
button.................................................(18)
Power buttons ...................................(39)
Tuner buttons.....................................(58)
MUTING button .................................(42)
Cursor buttons...................................(18)
ON SCREEN button...........................(42)
DVD SETUP button............................(35)
SPEAKER button................................(42)
STATUS button.............................(35, 42)
NOTE
• The shaded buttons               do not function with the AVR-4800.
(Nothing happens when they are pressed.)
The button indicated     , however, can be used with the learning 
function.