Section

01Before You Start

About the XM READY mark

The XM READY mark printed on the front panel indicates that the Pioneer XM tuner (sold sepa- rately) can be controlled by this unit. Please inquire to your dealer or nearest authorized Pioneer service station regarding the XM tuner that can be connected to this unit. For XM tuner operation, please refer to the XM tuner owner’s manual.

Notes

•XM Satellite Radio is developing a new band of radio in the U.S.A.

The system will use direct satellite-to-receiver broadcasting technology to provide listeners in their cars and at home with crystal-clear sound seamlessly from coast to coast. XM will create and package up to 100 channels of digital-quality music, news, sports, talk and children’s programming.

Protecting your unit from theft

The front panel can be detached from the head unit and stored in the protective case provided to discourage theft.

•If the front panel is not detached from the head unit within five seconds of turning off the ignition, a warning tone will sound.

•You can turn off the warning tone. See Switching the warning tone on page 33.

Important

•Never use force or grip the display and the buttons tightly when removing or attaching.

•Avoid subjecting the front panel to excessive shocks.

•Keep the front panel out of direct sunlight and high temperatures.

Removing the front panel

1Press OPEN to open the front panel.

2Grip the left side of the front panel and pull it gently outward.

Take care not to grip it tightly or drop it.

3Put the front panel into the protective case provided for safe keeping.

8En

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Pioneer DEH-P640 operation manual About the XM Ready mark, Protecting your unit from theft, Removing the front panel
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DEH-P640 specifications

The Pioneer DEH-P640 is a versatile and feature-rich car stereo that delivers a superior audio experience for those who appreciate high-quality sound on the road. Renowned for its exceptional sound quality and user-friendly design, the DEH-P640 integrates various technologies and characteristics that enhance both functionality and convenience.

One of the standout features of the DEH-P640 is its Direct Sound Control function. This allows users to fine-tune their audio settings to achieve a personalized sound profile. The unit is equipped with a 4-band equalizer, enabling precise adjustments of frequencies to suit individual preferences and the acoustics of the vehicle. Additionally, the DEH-P640’s built-in MOSFET amplifier provides robust power output, ensuring that music sounds rich and detailed, enhancing the listening experience.

Another notable aspect of the DEH-P640 is its compatibility with a wide array of audio formats. It supports both CD and MP3 playback, giving users the option to enjoy their favorite tracks from traditional CDs or digital music libraries. The front panel features a convenient auxiliary input, allowing for direct connection of portable devices, such as smartphones and MP3 players. Furthermore, the unit is equipped with a USB port, enabling access to USB flash drives containing music files.

The DEH-P640 also incorporates advanced technologies for improved user interaction. Its bright, easy-to-read display keeps users informed about the current track and settings. Additionally, the stereo features customizable colors for the display and buttons, allowing users to match the unit with their vehicle's interior aesthetic. The simple interface ensures that adjustments can be made with minimal distractions, promoting safer driving.

For those who appreciate the processing power of digital audio, the DEH-P640 includes features such as Sound Retriever and Advanced Sound Retriever, which enhance compressed audio files by restoring lost frequencies, resulting in a more vibrant and engaging listening experience.

The DEH-P640 is designed not just for music lovers, but also for those seeking a comprehensive multimedia experience. With its range of features, high-quality sound output, and user-friendly interface, this car stereo has cemented its place as a popular choice among consumers looking to enhance their in-car audio experience. Overall, the Pioneer DEH-P640 is an excellent investment for anyone looking to elevate their daily commutes or road trips with exceptional sound quality and technological sophistication.
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