Trouble Shooting - VDO CD 5104 Manual

TROUBLE SHOOTING

There may be times when you suspect that your
car radio is not functioning as you would expect it
to. Before calling for service, please read the
operating / installation instructions and review the
following checklists. You may find that an apparent
malfunction can easily be rectified.
If you still have to send your set for service, always
send the complete set (with detachable panel).
Do not try to open the set to service it yourself.
Audio
Set does not function. No Display.
• Check fuse (set and car) and connections.
• Check the operating voltage.
Set functions but no sound.
• Adjust the volume of the set.
• Check fader and balance settings.
• Check aerial and its connection.
• If car phone is connected, see 'SAM' (page
14), check option 'TEL/HFREE'.
Set mutes and display shows 'TEL MUTE' or
'HRFEE' but the car telephone is not in used.
• See 'SAM' (page 14), check option 'TEL/
HFREE'.
The sound from the speakers is reduced
automatically.
• A built-in safety circuity prevents the
temperature in the set from exceeding a certain
level.
• Wait for the temperature to decrease before
increasing the volume.
Radio
Cannot tune to desired station?
• Check that the aerial is fully extended and
properly connected.
• Check that the negative terminal (brown lead)
is connected to earth (car chassis).
• Desired station is too weak, try Manual Tuning.
Poor tuner reception?
• In some cars (e.g. VW and Seat) there is an
active aerial on the roof that needs a 12 Volt
supply. Please ask your dealer to check
whether a 12 volt is supplied to the antenna.
Display shows frequency (not station name).
• Set is tuned to non-RDS station.
• RDS function is switched off.
* Depending on version
14
Radio mutes momentarily while display shows
'SEARCH' and
alternately.
• Set is checking a list of Alternative Frequencies
(AF) for the tuned radio station as reception is
weak. In case no AF is transmitted for the tuned
station, switch off AF.
Display shows 'NO TA', and set beeps at intervals.
• The tuned station becomes too weak to enable
the reception of Traffic Announcements. Use
search tuning to find another station.
• If the TA mode is switched on, search tuning
only selects stations which enable the reception
of Traffic Announcements.
CD / MP3* / CDC*
Display shows 'CD ERR' and set beeps.
• Check that the disc have been inserted in the
correct way and that you have not inserted a
damaged or dirty disc.
Distorted sound during playback.
• Player unable to read disc. CD damaged or
dirty.
CD player does not function.
• If the weather is cold, there may be some
condensation on the laser. Use the set in radio
mode for about 5 minutes to allow the moisture
to evaporate.
Display shows 'NO CD' or 'NO DISC'.
• Check that the CD mechanism has been loaded
with disc(s).
14
station name/frequency
2004-12-2, 9:06