Basic Operation; Switching On/Off The Unit; Faceplate Release; Sound Adjustment - Boss Audio Systems 642CA User Manual

Mp3-compatible in-dash am/fm cd receiver
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OPERATION

BASIC OPERATION

SWITCHING ON/OFF THE UNIT

Press PWR/MUT button (23) to switch on
the unit. When system is on, press and
hold PWR/MUT button (23) to turn off the
unit.

FACEPLATE RELEASE

Press
button (1) to detach the
removable faceplate.

SOUND ADJUSTMENT

Press the volume button (3) shortly to
select the desired adjustment mode. The
adjustment mode will change in the
following order:
VOL
BAS
TRB
(Volume) (Bass) (Treble) (Balance) (Fader)
By rotating the volume knob (3) clockwise or
counter-clockwise, it is possible to adjust the
desired sound quality.

SYSTEM SETTING

Press and hold the volume button (3) on
the front panel to enter system setting
mode. Then shortly press the volume
button (3) to select the item you want to
change and rotate the volume knob (3) to
change the corresponding setting.
1) BEEP ON/OFF
Use the volume knob (3) to set Beep
sound ON or OFF.
2) AREA OIR/EUR/USA/ASI/S-R/JPN
In radio mode, Use the volume knob
(3) to set the different area frequency
spacing.
3) DIM HIGH/LOW/MID
In this menu, rotate the volume knob (3)
to change the brightness of the backlight
among High, Low and Middle.

LOUDNESS

Press BND/LOU/ENT button (14) for
several seconds to reinforce the bass
output. Press it for several seconds again
to release this function.
BAL
FAD

SET THE CLOCK

Press the DISP button (22) until the clock
is shown on the display. Then hold the
button until the clock flashes. Then press
button (2) to change the minutes and
button (15) to change the hours.

DISPLAY INFORMATION

Press DISP button (22) to operate as the
conversion of each display mode.

EQUALIZATION

Press
EQ
button
equalization function and to select desired
audio mode. There are five kinds of mode
as below:
FLAT CLASSICS POP M ROCK M DSP OFF
MUTE
Press PWR/MUT button (23) shortly to
mute down the sound instantly. Press it
again to resume the sound.

LIQUID CRYSTAL DISPLAY

Exhibit current frequency and activated
functions on the display (13).

REMOTE SENSOR

Point the remote control handset to the
remote sensor (21). Press the function
keys on the handset to control the system.

ESP FUNCTION

The unit can be shockproof about ten
seconds.

AUXILIARY INPUT

The unit can be connected to a portable
audio player through the auxiliary input jack
(17) on the front panel. After finishing the
connection, you can press MOD button
(11) on the front panel to switch the mode
to AUX IN mode.

RESET FUNCTION

Reset button (24) must be activated with
either a ballpoint pen or thin metal object.
9
(20)
to
turn
on

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