Boss Audio Systems ELITE 550B User Manual page 5

General Operation
Adjust the volume (VOL)
Rotate the VOL knob to increase or decrease the volume level.
Adjust Menu Options (SEL)
SEL button repeatedly to cycle through the following adjustable
audio functions: BASS, TREBLE, BALANCE, FADER, EQ OFF, LOUD OFF,
DX/LOC, STEREO/MONO and VOLUME.
Setting the Clock
CLK
hours digits start flashing on the display. Set hours by pressing the
button. Then briefly press the CLK button. The minute digits start flashing.
Set minutes by pressing the
Finally press the CLK button to confirm your settings.
LCD Display
Mute On/Off
In power on mode, briefly press the MUTE button to toggle mute on or off.
Loudness on/off
LOUD button on the remote control to turn on the loudness to
reinforce the output of bassfrequencies, press again to turn it off.
Preset EQ (Equalizer)
EQ button on the remote control to toggle between EQ OFF, FLAT,
USB Port
The USB port of this car radio is designed for media playback from flash
The charging current consumption is 1 ampere.
Reset
RESET button with a thin object with a pointed end to reset all
parameters to factory default settings.This function may be used when the
LCD does not display normally or sound is distorted, or when any of controls
are disabled.
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