JVC Manual & Troubleshooting Guide for Car Stereo Systems
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Warning (to prevent accidents and damage):

•Do not install any battery other than CR2025 or its equivalent.

•Do not leave the remote controller in a place (such as dashboards) exposed to direct sunlight for a long time.

•Store the battery in a place where children cannot reach.

•Do not recharge, short, disassemble, heat the battery, or dispose of it in a fire.

•Do not leave the battery with other metallic materials.

•Do not poke the battery with tweezers or similar tools.

•Wrap the battery with tape and insulate when throwing away or saving it.

Troubleshooting

 

Symptom

Remedy/Cause

 

Sound cannot be heard from the

Adjust the volume to the optimum level. / Make sure the unit is not

 

speakers.

muted/paused. (page 5) / Check the cords and connections.

 

“MISWIRING CHK WIRING THEN RESET

Check to be sure the terminals of the speaker leads are covered with

 

UNIT” appears on the display and no

insulating tape properly, then reset the unit. (page 3)

 

operations can be done.

If the message does not disappear, consult your JVC IN-CAR

General

 

ENTERTAINMENT dealer or a company supplying kits.

The unit does not work at all.

Reset the unit. (page 3)

 

 

“F-AUX” or “R-AUX” cannot be selected.

Check the <SRC SELECT> = <F-AUX / R-AUX> setting. (page 15)

 

Sound is sometimes interrupted while

Check to be sure the recommended stereo mini plug is used for

 

listening to an external component

connection. (page 9)

 

connected to the auxiliary input jack.

 

 

The correct characters are not displayed

This unit can only display letters (upper case), numbers, and a

 

(e.g. album name).

limited number of symbols.

FM/AM

SSM automatic presetting does not

Store stations manually.

work.

 

 

 

 

Static noise while listening to the radio.

Connect the aerial firmly.

 

“AM” cannot be selected.

Check the <SRC SELECT> = <AM> setting. (page 15)

 

Disc cannot be played back.

Insert the disc correctly.

 

CD-R/CD-RW cannot be played back

Insert a finalized CD-R/CD-RW (finalize with the component which

playback

and track cannot be skipped.

you used for recording).

Disc sound is sometimes interrupted.

Stop playback while driving on rough roads. / Change the disc. /

 

 

 

Check the cords and connections.

Disc

“NO DISC” appears on the display.

Insert a playable disc into the loading slot.

“PLEASE” and “EJECT“ appear

Press 0, then insert a disc correctly.

 

alternately on the display.

 

 

“IN DISC” appears on the display.

The disc cannot be ejected properly. Make sure nothing is blocking

 

 

the loading slot.

 

Disc cannot be played back.

Use a disc with MP3/WMA tracks recorded in a format compliant

MP3/WMA playback

 

with ISO 9660 Level 1, Level 2, Romeo, or Joliet. / Add the extension

 

code <.mp3> or <.wma> to the file names.

 

 

 

Noise is generated.

Skip to another track or change the disc.

 

“READING” keeps flashing on the

A longer readout time is required. Do not use too many hierarchical

 

display.

levels and folders.

ENGLISH

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Contents KD-R521/KD-R422 KD-R421/KD-R45 Battery Products European Union onlyContents About discsCanceling the display demonstration Setting the clockInitial setting Initial settingBasic operations Improving the FM reception Manual presetting FM/AM Automatic presetting FMSelecting a preset station Listening to the radioStandby receptions Tracing the same programmeAutomatic station selection TA Standby ReceptionListening to a disc Stopping playback and ejecting the discBasic operations Selecting a track/folder from the listConnecting the other external components Setting NameBT Phone appears when a Bluetooth phone is in use On the control panel F-AUXListening to a USB device For details, see Ipod Switch setting on Not applicable under EXT Mode Press Selects track/ chapterListening to an iPod/iPhone Selecting the control terminalSelecting a preset sound mode Ipod Mode / EXT Mode are not availableAdditional information For the music genreStoring your own sound mode Takes effect only when CT clock time data is receivedMenu operations 24H/12HFader *4, *5 Using the remote controller Installing the lithium coin battery CR2025Before using the remote controller For KD-R521 Displayed only when USB-IPOD is selectedTroubleshooting Have intended them to play Tracks are recorded on the discDisplay USB device againUsing Bluetooth devices Adjusting the microphone volumeAbout microphone volume Your phoneSpecifications Précautions sur le réglage du volume Précautions pour la lecture de disques à double facePile Produits Union européenne seulementPropos des disques Comment forcer l’éjection d’un disqueEntretien Guide de dépannage

KD-R521, KD-R422, KD-R45, KD-R421 specifications

The JVC KD-R421, KD-R45, KD-R422, and KD-R521 are part of JVC's highly regarded line of car receivers, designed to enhance your in-car audio experience with a blend of functionality, connectivity, and sound quality. Each model brings distinctive features and technologies, catering to the diverse needs of enthusiasts and casual listeners alike.

The JVC KD-R421 stands out with its user-friendly interface and impressive sound quality. It boasts a 1.5-line LCD display that provides clear visibility of titles and information. Its built-in amplifier delivers 50 watts of power, ensuring that your music comes through loud and clear. The KD-R421 supports MP3, WMA, and WAV file playback, making it compatible with various digital audio formats. Equally noteworthy is its front USB and auxiliary inputs, which allow for easy access to your digital music collection.

Moving to the KD-R45, this model introduces enhanced Bluetooth connectivity, enabling hands-free calling and wireless audio streaming. This convenience allows drivers to maintain focus on the road while enjoying their favorite tracks or podcasts. With its 13-band equalizer, users can tailor the sound to their preferences, achieving the perfect audio balance. The KD-R45 also features a removable faceplate, which is essential for added security when leaving your vehicle.

The KD-R422, a slight upgrade from its predecessors, enhances the audio experience with an improved digital-to-analog converter for superior sound fidelity. It retains many features from the KD-R421, such as USB and AUX inputs, while also adding support for additional audio formats. The model supports optional steering wheel control interfaces, allowing drivers to manage their playlists more safely.

Lastly, the KD-R521 offers advanced connectivity options, including Apple CarPlay and Android Auto compatibility, making it easier than ever to integrate smartphones into your driving experience. This model ensures seamless access to navigation, music, and communication apps directly from the receiver. The KD-R521 also features a high-contrast 2-line LCD display that enhances readability, even in bright sunlight.

Each of these JVC car receivers showcases a commitment to delivering high-quality audio performance combined with modern technology and usability. With features catering to connectivity, sound customization, and user convenience, they continue to rank among the top choices for car audio enthusiasts.
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