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Alpine cda 7990 r Manual

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48-EN
In Case of Difficulty
If you encounter a problem, please review
the items in the following checklist. This
guide will help you isolate the problem if the
unit is at fault. Otherwise, make sure the rest
of your system is properly connected or
consult your authorized Alpine dealer.
Basic
No function or display.
• Vehicle’s ignition is off.
- If connected following instructions, the
unit will not operate with the vehicle’s
ignition off.
• Improper power lead connections.
- Check power lead connections.
• Blown fuse.
- Check the fuse on the battery lead of the
unit; replace with the proper value if
necessary.
• Internal micro-computer malfunctioned
due to interference noise etc.
- Press the Reset switch with a ball-point
pen or other pointed article.
Radio
Unable to receive stations.
• No antenna or open connection in cable.
- Make sure the antenna is properly
connected; replace the antenna or cable
if necessary.
Unable to tune stations in the
seek mode.
• You are in a weak signal area.
- Make sure the tuner is in the DX mode.
• If the area you are in is a primary signal
area, the antenna may not be grounded and
connected properly.
- Check your antenna connections; make
sure the antenna is properly grounded at
its mounting location.
• The antenna may not be the proper length.
- Make sure the antenna is fully extended;
if broken, replace the antenna with a new
one.
Broadcast is noisy.
• The antenna is not the proper length.
- Extend the antenna fully; replace it if it
is broken.
• The antenna is poorly grounded.
- Make sure the antenna is grounded
properly at its mounting location.
CD
CD Player/Changer not function-
ing.
• Out of operating temperature range +50˚C
(+120˚F) for CD.
- Allow the vehicle’s interior (or trunk)
temperature to cool.
CD playback sound is wavering.
• Moisture condensation in the CD Module.
- Allow enough time for the condensation
to evaporate (about 1 hour).
Information
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