Boss Audio 740ua Guía Del Usuario
Page 13
LOCATION AND FUNCTION OF CONTROLS
Page 2
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.
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.
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.
or it is damaged.
Temperature inside the car is too
high.
high.
The volume control is set too low.
There is no sound.
The operation keys
do not work
do not work
The sound of the
CD player skips
CD player skips
The antenna cable is not connected.
Insert the antenna cable firmly into the
antenna socket of the device.
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.
connected.
The installation angle is more than
30 degrees
30 degrees
Wait until the road becomes smoother before
playing the CD.
playing the CD.
Adjust the installation angle to less than 30
degrees
degrees
Turn up the volume properly.
Check the power and earth connection
according to the wiring diagram.
according to the wiring diagram.
Cool off until the ambient temperature returns
to normal
to normal
Clean the CD or try another CD, if this works
correctly, the first CD is properly damaged.
correctly, the first CD is properly damaged.
Insert the compact disc with the label facing
upward
upward
Remove the disc in the player then put a new
upward
upward
Replace another fuse according to the wiring
diagram.
diagram.
The car ignition is switched off.
If the power supply is properly connected to
the car accessory, switch the ignition key to
the car accessory, switch the ignition key to
ON
or " ACC
"
"
" .
Solution
The device does
not work correctly
(EJECT, LOAD,
not work correctly
(EJECT, LOAD,
PLAY)
In automatic search
mode the radio does
not stop at a trans-
mitting station.
mode the radio does
not stop at a trans-
mitting station.
Tune in to a radio station manually.
The transmission signals are too
weak.
weak.
The CDs are loaded
only halfway into
the CD tray.
only halfway into
the CD tray.
The transport screws have not been
removed.
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.
or it is damaged.
Clean the CD or try another CD, if this works
correctly, the first CD is properly damaged.
correctly, the first CD is properly damaged.
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23
22
EJ
20
1. OPEN BUTTON
2. SEL BUTTON AND VOL KNOB
3. POWER BUTTON
4. LCD DISPLAY
5&6. >>| and |<< BUTTON
7. BAND BUTTON
8. MODE BUTTON
9. MUTE BUTTON
10. INFRARED REMOTE CONTROL SENSOR
11. AS/PS BUTTON
12. TOP/>||,INT,RPT,RDM
2. SEL BUTTON AND VOL KNOB
3. POWER BUTTON
4. LCD DISPLAY
5&6. >>| and |<< BUTTON
7. BAND BUTTON
8. MODE BUTTON
9. MUTE BUTTON
10. INFRARED REMOTE CONTROL SENSOR
11. AS/PS BUTTON
12. TOP/>||,INT,RPT,RDM
and 1-6 NUMBER BUTTON
13. MO/ST BUTTON
14. LOC BUTTON
15. LOUD BUTTON
16. CLOCK BUTTON
17. SCAN BUTTON
18. AUX INPUT JACK
19. USB SOCKET
20. EJECT BUTTON
21. CD SLOT
22. FLASHING LED
23. RESET BUTTON
14. LOC BUTTON
15. LOUD BUTTON
16. CLOCK BUTTON
17. SCAN BUTTON
18. AUX INPUT JACK
19. USB SOCKET
20. EJECT BUTTON
21. CD SLOT
22. FLASHING LED
23. RESET BUTTON
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