En
7
Front panel
1
z
(power) key
Turns on/off (standby) the unit.
2
Standby indicator
Lights up when the unit is in standby mode under any of the
following conditions.
• HDMI Control is enabled (p.78)
• Standby Through is enabled (p.78)
• Network Standby is enabled (p.86)
• An iPod is being charged (p.53)
3
YPAO MIC jack
For connecting the supplied YPAO microphone (p.27).
4
Remote control sensor
Receives remote control signals (p.4).
5
INFO (WPS) key
Selects the information displayed on the front display (p.68).
Enters the wireless LAN connection setup (WPS button
configuration) by holding down for 3 seconds (p.34).
6
MEMORY key
Registers FM/AM radio stations as preset stations (p.49).
7
PRESET keys
Select a preset FM/AM radio station (p.50).
8
FM and AM keys
Switch between FM and AM (p.48).
9
TUNING keys
Select the radio frequency (p.48).
0
Front display
Displays information (p.8).
A
DIRECT key
Enables/disables the direct playback mode (p.47).
B
INPUT keys
Select an input source.
C
PHONES jack
For connecting headphones.
D
TONE CONTROL key
Adjusts the high-frequency range and low-frequency range
of output sounds (p.70).
E
SCENE keys
Select the registered input source and sound program with
one touch. Also, turns on the unit when it is in standby mode
(p.42).
F
PROGRAM keys
Select a sound program or a surround decoder (p.43).
G
STRAIGHT key
Enables/disables the straight decode mode (p.46).
H
AUX jack
For connecting devices, such as portable audio players
(p.23).
I
USB jack
For connecting a USB storage device (p.58) or an iPod
(p.53).
J
VOLUME knob
Adjusts the volume.
Part names and functions
PROGRAM
TONE CONTROL
STRAIGHT
(CONNECT)
AUX
AUDIO
5V
1A
SCENE
PHONES
SILENT CINEMA
YPAO MIC
DIRECT
VOLUME
INPUT
TV
BD/DVD
NET
RADIO
b
c
d
f
g
h
e
a
j
i
k
l
m
n
o
p
r
s
t
q
MEMORY
INFO (WPS)
PRESET
FM
TUNING
AM
00_RX-A550_om_U.book Page 7 Thursday, March 26, 2015 5:44 PM