Power ON/OFF

Turning the unit on

Press SOURCE to turn the unit on.

When you select a source the unit is turned on.

Selecting a source

You can select a source you want to listen to. To switch to the cassette player, load a cassette tape in this unit (refer to page 12).

Press SOURCE to select a source.

Press SOURCE repeatedly to switch between the following sources:

TunerCassette playerMulti-CD player

External unitAUX

Notes

In the following cases, the sound source will not change:

When a product corresponding to each source is not connected to this unit.

When no cassette is set in this unit.

When no magazine is set in the multi-CD player.

When the AUX (external input) is set to off (refer to page 20).

External Unit refers to a Pioneer product (such as one available in the future) that, although incompatible as a source, enables control of basic functions by this product. Only one External Unit can be controlled by this product.

When this unit’s blue/white lead is connected to the car’s auto-antenna relay control termi- nal, the car’s antenna extends when this unit’s source is switched on. To retract the antenna, switch the source off.

Turning the unit off

Press SOURCE and hold for at least one sec- ond to turn the unit off.

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Pioneer KEH-P4020R, KEH-P4023R operation manual Power ON/OFF, Turning the unit on, Selecting a source, Turning the unit off

KEH-P4020R, KEH-P4023R specifications

The Pioneer KEH-P4023R and KEH-P4020R are exceptional car audio receivers that cater to a wide range of audio enthusiasts looking to upgrade their in-car sound experience. Both models are part of Pioneer's reputation for high-quality audio systems that deliver robust performance, versatility, and modern functionality.

One of the key features of the KEH-P4023R and KEH-P4020R is their user-friendly interface. Both models are equipped with a large, easy-to-read LCD display that provides clear visibility of song information, settings, and menus, making it simple for drivers to navigate their audio preferences without distraction. The rotary volume knob and tactile buttons further enhance the overall usability, allowing for quick adjustments while on the road.

In terms of audio performance, these models boast a powerful built-in amplifier that supports a peak power output of 50 watts per channel. This ensures that users can enjoy high-quality sound with minimal distortion, even at higher volumes. The receivers also feature a 3-band equalizer, allowing users to customize their audio settings to suit their personal preferences.

Connectivity is another standout feature of the KEH-P4023R and KEH-P4020R. Both receivers offer multiple input options, including a front auxiliary input and optional USB connection, making them compatible with a wide range of devices, including smartphones and portable music players. The integration with iPod and iPhone further enhances their functionality, enabling seamless control of music playback directly from the receiver.

The KEH-P4023R model includes additional features such as a built-in AM/FM tuner with presets, allowing users to enjoy their favorite radio stations easily. Both models also support CD playback, accommodating various audio formats for maximum flexibility.

In terms of design, both models feature an attractive, modern aesthetic that will complement any vehicle interior. The durable construction ensures longevity, while the easy installation process allows users to replace their existing units with minimal hassle.

In summary, the Pioneer KEH-P4023R and KEH-P4020R receivers offer exceptional sound quality, versatile connectivity options, and user-friendly features, making them ideal choices for anyone looking to enhance their driving experience. Whether you’re a casual listener or an audiophile, these receivers deliver powerful audio performance and customizable settings that cater to a wide array of preferences.