Initial System Start-Up

Be sure to press the RESET switch when using the unit for the first time, after changing the car battery, etc.

1Turn off the unit power.

2Press (OPEN) to open the front panel, then remove it.

3Press RESET with a ballpoint pen or similar pointed object.

RESET switch

Adjusting Volume

Turn the Rotary encoder until the desired sound is obtained.

Lowering Volume Quickly

Activating the Audio Mute function will instantly lower the volume level by 20 dB.

Press MUTE to activate the MUTE mode.

The audio level will decrease by about 20 dB.

Pressing MUTE again will bring the audio back to its previous level.

Setting the Time and Calendar

1Press MENU to select SETUP, then press MODE.

BBE BASS ENGINE SETUP RETURN (OFF)

BBE

2Press or to select the GENERAL mode, then press MODE.

GENERAL TUNER AUDIO DISPLAY DEMO

3Press or to select “Clock Adjust,” then press MODE.

4Turn the Rotary encoder to set year.

5Press MODE.

6Repeat steps 4 and 5 above to set month, day, hour and minutes.

7Press MENU to select RETURN.

After 2 seconds, the unit returns to normal mode. Pressing and holding MENU for at least 2 seconds will return to normal mode.

•To synchronize the clock to another clock/watch or radio time announcement, press and hold MODE for at least 2 seconds after setting the “hour.” Minutes will reset to 00. If the display shows over “30” minutes when you do this, the time will advance one hour.

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Alpine CDA-9857 Initial System Start-Up, Adjusting Volume, Lowering Volume Quickly, Setting the Time and Calendar
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CDA-9857 specifications

The Alpine CDA-9857 is a versatile single DIN car stereo that combines advanced sound quality with user-friendly features, making it a popular choice among car audio enthusiasts. Launched in the mid-2000s, it reflects Alpine's commitment to innovation, providing drivers with an exceptional listening experience. The CDA-9857 stands out due to its extensive sound tuning capabilities, allowing users to customize audio settings to suit their preferences.

One of the key features of the CDA-9857 is its 24-bit DAC (Digital-to-Analog Converter), which enhances sound clarity and detail. This technology significantly improves audio playback quality, making music sound crisp and well-defined across all genres. Additionally, the stereo supports multiple audio formats, including MP3, WMA, and AAC, ensuring compatibility with various media sources.

The CDA-9857 is equipped with a built-in EQ, featuring customizable presets and a 3-band parametric EQ. This allows users to adjust the bass, midrange, and treble frequencies independently, tailoring the audio output to match the acoustics of their vehicle. Furthermore, the stereo includes Alpine's proprietary “Media Xchange” technology, which enables the connection of external devices, like iPods and USB drives, thus allowing easy access to vast music collections.

For those who prioritize connectivity, the CDA-9857 features AUX inputs, a front USB port, and is compatible with Bluetooth hands-free calling when paired with a Bluetooth adapter, ensuring safety and convenience while driving. The unit also includes a convenient remote control, allowing easy navigation of its numerous options without having to reach for the dial.

Visually, the CDA-9857 boasts an attractive design, featuring a vibrant blue illuminated display that enhances readability and complements most car interiors. Its ergonomic controls make it user-friendly, enabling quick adjustments while on the go.

Overall, the Alpine CDA-9857 stands out as a feature-rich unit with a robust set of technologies designed to enhance the car audio experience. With its exceptional sound quality, customizable features, and excellent connectivity options, the CDA-9857 remains a solid choice for anyone looking to improve their in-car entertainment system.
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