Trouble Shooting - Boss Audio Systems 639UA User Manual

Trouble Shooting

Before going through the check list, check wiring connection. If any of the problems persist after check
list has been made, consult your nearest service dealer.
Symptom
Cause
No power
The car ignition is not on.
The fuse is blown.
Disc cannot be loaded Presence of CD disc inside
or ejected 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.
No sound
Wiring is not properly
connected.
The built-in microcomputer is
The operation keys do
not operating properly due to
not work
noise.
The installation angle is
Sound skips.
more than 30 degrees.
The disc is extremely dirty or a
defective disc.
The antenna cable is not
The radio does not
connected.
work.
The radio station
The signals are too weak.
automatic selection
does not work.
Mechanism Error
ERROR 1
ERROR 2
Servo Error
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)
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.
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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
3 Installation
6 General and radio control
8 CD/CD MP3 control
10 USB/SD Card (MP3 Playback) control
12 Setting the clock
14 Setting mode
15 Specification
16 Trouble shooting
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