Why does 'READING' keep flashing on my JVC Car Receiver during MP3/WMA playback?
If “READING” keeps flashing on the display of your JVC Car Receiver during MP3/WMA playback, a longer readout time is required. Do not use too many hierarchical levels and folders.
What to do if my JVC KD-R421 Car Receiver displays 'MISWIRING CHK WIRING THEN RESET UNIT'?
If your JVC Car Receiver displays “MISWIRING CHK WIRING THEN RESET UNIT” and you can't do anything, check that the terminals of the speaker leads are properly covered with insulating tape, and then reset the unit. If the message persists, consult your JVC IN-CAR ENTERTAINMENT dealer or a company supplying kits.
What to do if my JVC KD-R421 says 'CANNOT PLAY' or 'NO USB'?
If your JVC Car Receiver displays “CANNOT PLAY” or “NO USB” or the unit cannot detect the USB device, check whether the connected USB device is compatible with this unit. You can also try reattaching the USB device.
Why is my iPod/iPhone not working with my JVC KD-R421 Car Receiver?
If your JVC Car Receiver does not turn on or work with your iPod/iPhone, check the connecting cable and its connection. Also, update the firmware version of the iPod/iPhone, charge its battery, reset it, and check whether the setting is appropriate.
Why aren't my MP3/WMA tracks playing in the correct order on my JVC Car Receiver?
If tracks do not play back in your intended order on your JVC Car Receiver during MP3/WMA playback, the playback order is determined when the files are recorded.
Why is the elapsed playing time incorrect on my JVC KD-R421 Car Receiver during MP3/WMA playback?
This sometimes occurs during playback on JVC Car Receiver. This is caused by how the tracks are recorded on the disc.
What to do if my JVC KD-R421 shows 'PLEASE' and 'EJECT'?
If your JVC Car Receiver displays “PLEASE” and “EJECT“ alternately, press 0, then insert a disc correctly.
What to do if my JVC Car Receiver says 'NO DISC'?
If your JVC Car Receiver displays “NO DISC”, insert a playable disc into the loading slot.
What to do if JVC KD-R421 Car Receiver shows 'NOT SUPPORT' during USB playback?
If your JVC Car Receiver displays “NOT SUPPORT” and track skips during USB playback, check whether the track is a playable file format.
What does 'NO FILE' mean on my JVC Car Receiver during USB playback?
If your JVC Car Receiver displays “NO FILE” during USB playback, check whether the device contains playable files.
Explains the operation of buttons like /SOURCE, Control dial, EQ, and DISP.
How to connect a USB device and start playback.
Important warnings regarding USB device usage, data backup, and potential connection issues.
How to connect an iPod/iPhone and important usage warnings.
Guide to navigating the unit's menu for various settings like DEMO, CLOCK, DIMMER.
Detailed settings for audio equalization, speaker balance, loudness, and volume adjustment.
Explanation of what each button on the remote controller does.
Solutions for common issues like no sound, unit failure, or radio static.
Solutions for disc playback errors and problems with MP3/WMA files.
Solutions for issues encountered with USB and iPod/iPhone playback.
Steps to register a Bluetooth device and configure the unit's source selection.
Technical details for the audio amplifier, tuner, and CD player sections.
Technical details for USB compatibility, operating requirements, dimensions, and mass.
General| MP3 playback | Yes |
|---|---|
| Tuner type | HS-IV |
| FM band range | 87.5 - 108 MHz |
| Audio output channels | 4.0 channels |
| Equalizer bands quantity | 3 |
| Maximum power per channel | 50 W |
Weight and Dimensions| Weight | 121 g |
|---|
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