Alpine CDA-7990 Information, In Case of Difficulty, 44-EN, Basic, Radio, No function or display

Models: CDA-7990

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Information

Information

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).

CD insertion not possible.

A CD is already in the CD player.

-Eject the CD and remove it.

The CD is being improperly inserted.

-Make sure the CD is being inserted following instructions in the CD Player Operation section.

44-EN

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Alpine CDA-7990 manual Information, In Case of Difficulty, 44-EN, Basic, Radio, No function or display, Broadcast is noisy