14 | KDC-BT73DAB/ KDC-BT53U/ KDC-5057SD English | 15

Basic operations

3-4. General operations

Power
Press [SRC] to turn the power ON.
Press and hold [SRC] to turn the power OFF.
Source selection
Press [SRC].
The source will switch each time upon pressing the
button.
Source Display
Standby “STANDBY”
Digital radio[2] “DIGITAL RADIO”
Tuner “TUNER”
USB device connected to front USB terminal “USB(FRONT)”
USB device connected to rear USB terminal “USB(REAR)”
iPod connected to front USB terminal[1] “iPod(FRONT)”
iPod connected to rear USB terminal[1] “iPod(REAR)”
aha™ of iPod connected to front USB
terminal[1][2][3]
“aha(FRONT)”
aha™ of iPod connected to rear USB
terminal[1][2][3]
“aha(REAR)”
aha™ of device connected via Bluetooth[1]
[2][3]
“aha”
Bluetooth audio[2][3] “BT AUDIO”
SD[1][4] “SD”
CD[1] “CD”
Auxiliary Input “AUX”
[1] This source can be selected only when it can be played.
[2] Function of KDC-BT73DAB.
[3] Function of KDC-BT53U.
[4] Function of KDC-5057SD.
Setting the source switching
•Source switching can be set so that pressing [SRC] switches
among sources. For more details, refer to <12-7. Initial
settings> (page 61).
•Source switching can be set so that “aha” and “AUX” sources
can not be selected when not in use. For more details, refer
to <12-7. Initial settings> (page 61).
Volume
Turn [Control] knob.
USB terminal
A USB device or iPod can be connected.
The CA-U1EX (Max. 500mA) or KCA-iP102
(optional accessories) is recommended to
connect a USB device or iPod.
Auxiliary input
A portable audio device can be connected with
a stereo mini-plug (3.5 mm ø).