Insert Usb; Adjust Volume (Vol); Switch Between Us And Eu Frequency; Manual Tuning ( / ) - Boss Audio Systems MR400UAB User Manual

OPERATION
9. USB Port
Rotate the volume knob to increase or decrese the volume level of the sound output.
Press the SEL button repeatedly to cycle through the following adjustable audio functions:
ILL MID/HI/LOW, BASS, TREBLE, BALANCE, FADER, EQ OFF, CLASS/ROCK/POP/ FLAT,
LOUD ON/OFF, DX/LOC, STEREO/MONO, CLOCK 12/24, AREA US/EU.
• Rotate the VOL knob to adjust the selected item.
- ILL MID/HI/LOW: This receiver is equipped with 3 brightness settings.
Rotate the volume knob to preset the illumination to middle, high or low.
- BASS: -7, -6, ~, -1, 0, +1, ~, +6, +7
- TREBLE: -7,-6, ~, -1, 0,+01,~, +6, +7
- BALANCE: L7, L6,~, L1, 0, R1,~,R6, R7
- FADER: R7,R6, ~, R1,0, F1,~,F6, F7
- EQ(Equalizer) Setting: OFF, CLASS, ROCK, POP, FLAT
- Loudness: LOUD ON/OFF
- DX/LOCAL: Enables or disables the local broadcast mode (LOCAL).
- Stereo/Mono: Switches between MONO and STEREO reception mode for radio frequencies.
- CLOCK 12/24: Select between 12 hours and 24 hours display.
Note: If 12 hour display is selected , AM= Morning; PM= Afternoon
- AREA US/EU: This car radio is equipped the USA / Europe frequency.
Rotate the volume knob to switch between USA and Europe frequency.
The system will change the frequency setting in about 3 seconds.
11.FF( ) &12.FB(
In the radio mode:
Long press the
mode, briefly press the
Short press the
for the strong signal radio station within the cuttent band. The auto searching will stop until find a
station.
In the USB playback:
Briefly press the
Press and hold the
13.BND/AMS
In radio mode,short press the BND/AMS button repeatedly to select the one of the radio band : FM 1,
FM 2,FM 3, AM1,AM2 in a cycle sequence. When you select a band, the word F1、F2、F3 for FM band,
and A1, A2 for AM band will be shown on the LCD display.
Press the BND/AMS
During USB playback, press and hold the BND/AMS button to enter track search mode, the "TRK 0000"
will appear on the display. Rotate VOL knob to select the "first number". Then press the
move the "first number" to the left and enter the next number. Finally press the SEL button to confirm
and play the selected track. If no any operation in 5 seconds,it will play the current track.

14. AUX IN JACK

15. RESET
To reset all parameters to factory default values. Use a subject with a sharp point end to thrush the
RESET hole.
)
or button for more than 2 seconds, the unit will switch to manual tuning
or button to search the next or previous frequency step by step.
or button, the automatic search will start, it will search upward or downward
or button to play the the next or previou track.
or button to fast forward or fast backward.
When the 6 strongest stations will be stored into
check
button to
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