Boss Audio 639UA User Manual
Trouble Shooting
Before going through the check list,check wiring connection. If any of the problems persist after check
listhasbeenmade,consult your nearestservicedealer.
Symptom
No power
Disc cannot be loaded
or ejected
No sound
The operation keys do
not work
Sound skips.
The radio does not
work.
The radio station
automatic selection
does not work.
ERROR 1
ERROR 2
Cause
The car ignition is not on.
The fuse is blown.
Presence of CD disc inside
the player.
Inserting the disc in reverse
direction.
Compact disc is extremely
dirty or defective disc.
Temperature inside the car is
too high.
Condensation.
Volume is in minimum.
Wiring is not properly
connected.
The built-in microcomputer is
not operating properly due to
noise.
The installation angle is
more than 30 degrees.
The disc is extremely dirty or a
defective disc.
The antenna cable is not
connected.
The signals are too weak.
Mechanism Error
Servo Error
Solution
If the power supply is properly connected
to the car accessory terminal, switch the
ignition key to ACC
Replace the fuse.
Remove the disc in the player, then put a
new one.
Insert the compact disc with the label
facing upward.
Clean the disc or try to play a new one.
Cool off or until the ambient temperature
returns to normal.
Leave the player off for an hour or so,
then try again.
Adjust volume to a desired level.
Check wiring connection.
Press the RESET button.
Front panel is not properly fixed into its
place
Adjust the installation angle to less than
30 degrees.
Clean the compact disc or try to play a
new one.
Insert the antenna cable firmly.
Select a station manually.
Press the reset button if the error code
does not disappear, consult your nearest
service dealer.
Press the reset button if the error code
does not disappear, consult your nearest
service dealer.
639UA
MP3-Compatible
In-Dash CD Receiver
with USB And SD Memory Card Port
And Front Panel AUX Input
Congratulations on your purchase
of a Digital Media Receiver.
It has been designed, engineered
and manufactured to bring you the
highest level of performance and
quality, and will afford you years of
listening pleasure.
Thank you for making your
choice for car audio entertainment!
What s inside the box:
639UA x 1
Instruction Manual x 1
Wire Harness x 1
Support Strap x 1
5mm Nut x 1
Mini USB Cable X 1
5 x 15mm Screw x 1
Unit Release Lever x 2
Remote Control x 1
USER S MANUAL
pages CONTENTS
Installation
3
General and radio control
6
CD/CD MP3 control
8
USB/SD Card (MP3 Playback) control
10
Setting the clock
12
Setting mode
14
Specification
15
Trouble shooting
16
If at any time in the future you should need to dispose of this product please note
that Waste electrical products should not be disposed of with household waste.
Please recycle where facilities exist. Check with your Local Authority or retailer for
recycling advice.(Waste Electrical and Electronic Equipment Directive)
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