Boss Audio Systems 637UA Car Stereo System User Manual


 
Page 9
LOCATION AND FUNCTION OF CONTROLS
Page 2
1 & 2.SEL(MENU) BUTTON AND VOL KNOB
a) Press the SEL button briefly, it is activated as selecting each mode of E. VOL.
-> VOLUME ->BASS ->TREBLE -> BALANCE -> FADER ->
When selecting a desired audio mode, rotate the VOL knob to adjust the
audio effect.
In each mode, the waiting time is about 5 seconds, and the time waiting time
is over, it returns to the last display mode of tuner or CDP mode.
The control mode of E.VOL is operated with following numeric display.
- VOL: (MIN)00, 01,......46, 47(MAX).
- BASS/TRE: -07, -06,...,00,...+06,+07
- BAL: 0LR9, 1LR9, ..., 9LR9,..., 9LR1, 9LR0
- FAD: 0FR9,1FR9, ..., 9FR9,..., 9FR1, 9FR0
b) When pressed and hold for more than 2 seconds, it is activated as cyclical
mode of following functions for users selection.
->BEEP (ON/OFF) -> USER SET(FLAT/CLASSIC/ROCK/POP)
->VOL(LAST/DEFA) ->CLK(ON/OFF)->CLK(12/24)mode.
When selecting a desired audio mode, rotate the VOL knob to adjust the
audio effect.
TROUBLE SHOOTING
Before using the check list please make all the connections first.
If you still have questions after going through the checklist, please consult
your local customer service representative.
Common Symptoms
There is no power.
The CDs cannot
be loaded.
Cause
The fuse has blown.
Presence of CD disc inside the player
Inserting the disc in upside down
The surface of CD is extremely dirty
or it is damaged.
Temperature inside the car is too
high.
The volume control is set too low.
There is no sound.
The operation keys
do not work
The sound of the
CD player skips
The antenna cable is not connected. Insert the antenna cable firmly into the
antenna socket of the device.
No radio reception.
1.The built-in microcomputer is not
operating properly due to noise
2.Front panel is not properly fix into
its place
1. Switch the device off and on again. Or press
the RESET button to resume the program.
2. Reinstall the front panel
The device has not been correctly
connected.
The installation angle is more than
30 degrees
Wait until the road becomes smoother before
playing the CD.
Adjust the installation angle to less than 30
degrees
Turn up the volume properly.
Check the power and ground connection
according to the wiring diagram.
Cool off until the ambient temperature returns
to normal
Clean the CD or try another CD, if this works
correctly, the first CD is properly damaged.
Insert the compact disc with the label facing
upward
Remove the disc in the player then put a new
upward
Replace another fuse according to the wiring
diagram.
The car ignition is switched off.
If the power supply is properly connected to
the car accessory, switch the ignition key to
ON or " ACC " " " .
Solution
The device does
not work correctly
(EJECT, LOAD,
PLAY)
In automatic search
mode the radio does
not stop at a trans-
mitting station.
Tune in to a radio station manually.The transmission signals are too
weak.
The CDs are loaded
only halfway into
the CD tray.
The transport screws have not been
removed.
Remove the transport screws before using.
The surface of the road is uneven.
The surface of CD is extremely dirty
or it is damaged.
Clean the CD or try another CD, if this works
correctly, the first CD is properly damaged.