Information

In Case of Difficulty

If you encounter a problem, please turn the power off, then on again. If the unit is still not functioning normally, 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 functioning.

•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.

Unable to fast forward or backward the CD.

•The CD has been damaged.

-Eject the CD and discard it; using a damaged CD in your unit can cause damage to the mechanism.

CD playback sound skips due to vibration.

•Improper mounting of the unit.

-Securely re-mount the unit.

•Disc is very dirty.

-Clean the disc.

•Disc has scratches.

-Change the disc.

•The pick-up lens is dirty.

-Do not use a commercial available lens cleaner disc. Consult your nearest ALPINE dealer.

CD playback sound skips without vibration.

•Dirty or scratched disc.

-Clean the disc; damaged disc should be replaced.

Error displays (built-in CD player only)

•Mechanical error

-Press the c button. After the error indication disappears, insert the disc again. If the above- mentioned solution does not solve the problem, consult your nearest ALPINE dealer.

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Alpine CDM-9823, cdm-9821 owner manual Information, Case of Difficulty
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cdm-9821, CDM-9823 specifications

The Alpine CDM-9823 and CDM-9821 are high-performance in-dash car CD players known for their advanced features and superior sound quality. These models are particularly popular among automotive audio enthusiasts due to their user-friendly design and cutting-edge technology.

One of the main features of both models is their ability to support a wide range of audio formats. They can play standard CDs, CD-Rs, and CD-RWs, which allows users to enjoy a variety of music options. In addition to traditional CDs, these models are also compatible with MP3 and WMA files. This compatibility offers versatility as users can easily create custom playlists on disc, enhancing the overall listening experience.

Another notable characteristic of the CDM-9823 and CDM-9821 is their powerful 52 watts x 4 channel built-in amplifier. This robust amplification ensures crisp sound reproduction and deep bass, providing an immersive audio experience. Additionally, both units feature advanced audio equalization options, allowing users to fine-tune sound settings according to their preferences and vehicle acoustics.

In terms of technology, the CDM-9823 and CDM-9821 are equipped with a high-quality digital-to-analog converter (DAC), ensuring that music playback is clear and vibrant. This technology contributes to the overall sound quality, making it a significant selling point for audiophiles. Moreover, both models come with a detachable faceplate for increased security against theft.

The displays on these models are designed for optimum visibility, even in bright sunlight. Users can easily navigate through tracks and settings thanks to the intuitive interface. Additionally, the inclusion of a remote control in the package enhances convenience, allowing users to manage playback without the need to reach for the unit.

Furthermore, they incorporate features like a built-in AM/FM tuner, which provides access to a wide range of radio stations, expanding listening options beyond just CDs. The easy-to-use tuning dial and preset station functions streamline the process of finding favorite radio channels.

Overall, the Alpine CDM-9823 and CDM-9821 are excellent choices for anyone looking to upgrade their in-car audio system. With their blend of sound quality, user-friendly features, and advanced technology, these CD players stand out in the competitive landscape of automotive audio solutions, catering to the needs of a diverse audience of music lovers. Whether for long road trips or daily commutes, these models deliver an exceptional auditory experience.
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