Troubleshooting

 

 

 

Symptom

Remedy/Cause

 

 

 

Sound cannot be heard from the

• Adjust the volume to the optimum level.

 

 

 

speakers.

• Make sure the unit is not muted/paused. (See page 1.)

 

 

 

 

• Check the cords and connections.

 

 

 

“PROTECT” appears on the display and no

Check to be sure the terminals of the speaker leads are

General

operations can be done.

covered with insulating tape properly, then reset the

 

unit. (See page 1.)

 

If “PROTECT” does not disappear, consult your JVC car

 

 

 

 

audio dealer or a company supplying kits.

 

 

 

This unit does not work at all.

Reset the unit. (See page 1.)

 

 

 

“AUX IN” cannot be selected.

Check the <SRC SELECT> = <AUX IN> setting. (See

 

 

 

 

“Menu operations” on page 3.)

FM/AM

SSM automatic presetting does not work.

Store stations manually.

Static noise while listening to the radio.

Connect the antenna firmly.

“AM” cannot be selected.

Check the <SRC SELECT> = <AM> setting. (See “Menu

 

 

 

 

operations” on page 3.)

 

 

 

Disc cannot be played back.

Insert the disc correctly.

 

 

 

CD-R/CD-RW cannot be played back.

• Insert a finalized CD-R/CD-RW.

 

 

 

• Tracks on the CD-R/CD-RW cannot be

• Finalize the CD-R/CD-RW with the component which

playback

 

skipped.

you used for recording.

 

Disc can be neither played back nor

• Unlock the disc. (See page 2.)

 

ejected.

• Eject the disc forcibly. (See page 1.)

 

Disc sound is sometimes interrupted.

• Stop playback while driving on rough roads.

Disc

 

• Change the disc.

 

• Check the cords and connections.

 

 

 

 

 

 

 

“NO DISC” appears on the display.

Insert a playable disc into the loading slot.

 

 

 

“PLEASE” and “EJECT” appear alternately

Press 0, then insert a disc correctly.

 

 

 

on the display.

 

 

 

 

Disc cannot be played back.

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

 

 

 

 

compliant 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. (Do not add

 

 

 

 

the extension code <.mp3> or <.wma> to non-MP3 or

 

 

 

 

WMA tracks.)

 

 

 

A longer readout time is required

Do not use too many hierarchical levels and folders.

 

 

 

(“READING” keeps flashing on the display).

 

playback

Tracks are not played back in the order

Playback order is determined when the files are

you have intended.

recorded.

MP3/WMA

The elapsed playing time is not correct.

This sometimes occurs during playback. This is caused

 

by how the tracks are recorded on the disc.

For KD-R414: “NO FILE” appears on the

Selected folder is an empty folder *. Select another

 

 

 

 

 

 

display.

folder that contains MP3/WMA tracks.

 

 

 

 

* Folder that is physically empty or folder that contains data

 

 

 

 

but does not contain valid MP3/WMA track.

 

 

 

“NOT SUPPORT” appears on the display

Skip to the next track encoded in an appropriate

 

 

 

and track skips.

format or to the next non-copy-protected WMA track.

 

 

 

The correct characters are not displayed

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

 

 

 

(e.g. album name).

and a limited number of symbols. (See page 2.)

 

 

 

Noise is generated.

The track played back is not an MP3/WMA track. Skip to

 

 

 

 

another file. (Do not add the extension code <.mp3>

 

 

 

 

or <.wma> to non-MP3 or WMA tracks.)

 

 

 

“READING” keeps flashing on the display.

• Readout time varies depending on the USB device.

 

 

 

 

• Do not use too many hierarchy or folders.

 

 

 

 

• Turn off the power then on again.

 

 

 

 

• Reattach the USB device again.

R414)

“NO FILE” appears on the display.

Selected folder is an empty folder*. Select another

 

folder that contains MP3/WMA tracks.

-

 

 

 

* Folder that is physically empty or folder that contains

KD

 

 

data but does not contain valid MP3/WMA track.

(for

 

“NOT SUPPORT” appears on the display

Skip to the next track encoded in an appropriate

playback

and track skips.

format or to the next non-copy-protected WMA track.

Tracks/folders are not played back in the

The playback order is determined by the write-in time

More about this unit

General

If you turn off the power while listening to a track, playback will start from where it had been stopped previously next time you turn on the power.

If no operation is done for about 60 seconds after pressing MENU button, the operation will be canceled.

Tuner operations

During SSM search...

–All previously stored stations are erased and the

stations are stored anew.

–When SSM is over, the station stored in the lowest preset number will be automatically tuned in.

When storing a station manually, the previously preset station is erased when a new station is stored in the same preset number.

Disc/USB operations

Caution for DualDisc playback

The Non-DVD side of a “DualDisc” does not comply with the “Compact Disc Digital Audio” standard. Therefore, the use of Non-DVD side of a DualDisc on this product may not be recommended.

General

This unit has been designed to reproduce CDs/CD Texts, and CD-Rs (Recordable)/CD-RWs (Rewritable) in audio CD (CD-DA), MP3 and WMA formats.

If you change the source while listening to a disc, playback stops. Next time you select “CD” as the playback source, playback will start from where it had been stopped previously.

If the ejected disc is not removed within 15 seconds, it is automatically inserted into the loading slot again to protect it from dust. Playback starts automatically.

Playing a CD-R or CD-RW

Use only “finalized” CD-Rs or CD-RWs.

This unit can play back multi-session discs; however, unclosed sessions will be skipped while playing.

Some CD-Rs or CD-RWs may not be played back on this unit:

–Discs are dirty or scratched.

–Moisture condensation has occurred on the lens inside the unit.

–The pickup lens inside the unit is dirty.

–The files on the CD-R/CD-RW are written using the “Packet Write” method.

–There are improper recording conditions (missing data, etc.) or media conditions (stained, scratched, warped, etc.).

CD-RWs may require a longer readout time since the reflectance of CD-RWs is lower than that of regular CDs.

Playing an MP3/WMA disc

This unit can play back MP3/WMA files with the extension code <.mp3> or <.wma> (regardless of the letter case—upper/lower).

This unit can show the names of albums, artists (performer), and tag (Version 1.0, 1.1, 2.2, 2.3, or 2.4) for MP3 files and for WMA files.

This unit can display only one-byte characters. No other characters can be correctly displayed.

This unit can play back MP3/WMA files meeting the conditions below:

–Bit rate: MP3: 32 kbps — 320 kbps

WMA: 32 kbps — 192 kbps

–Sampling frequency of MP3:

32 kHz, 44.1 kHz, 48 kHz (for MPEG-1) 16 kHz, 22.05 kHz, 24 kHz (for MPEG-2)

–Sampling frequency of WMA: 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz

–Disc format: ISO 9660 Level 1/ Level 2, Romeo, Joliet, Windows extension

The maximum number of characters for file/folder names (includes 4 extension characters—<.mp3> or <.wma>): 12 — 128 characters (depending on the media used, etc.).

This unit can recognize a total of 512 files, 255 folders, and 8 hierarchical levels.

This unit can play back files recorded in VBR (variable bit rate).

Files recorded in VBR have a discrepancy in the elapsed time display, and do not show the actual elapsed time. In particular, this difference becomes noticeable after performing the search function.

This unit cannot play back the following files:

–MP3 files: encoded in MP3i and MP3 PRO format;

an inappropriate format; layer 1/2.

–WMA files: encoded in lossless, professional, and voice format; not based upon Windows Media® Audio; copy-protected with DRM.

–Files which have data such as AIFF, ATRAC3, etc.

The search function works but search speed is not constant.

Playing MP3/WMA tracks from a USB device (for KD-R414)

While playing from a USB device, the playback order may differ from other players.

This unit may be unable to play back some USB devices or some files due to their characteristics or recording conditions.

Depending on the shape of the USB devices and connection ports, some USB devices may not be attached properly or the connection might be loose.

Connect one USB mass storage class device to the unit at a time. Do not use a USB hub.

If the connected USB device does not have the correct files, “CANNOT PLAY” appears.

This unit can show Tag (Version 1.0, 1.1, 2.2, 2.3, or 2.4) for MP3 files and for WMA files.

This unit can play back MP3/WMA files meeting the conditions below:

–Bit rate of MP3/WMA: 32 kbps — 320 kbps

–Sampling frequency of MP3:

32 kHz, 44.1 kHz, 48 kHz (for MPEG-1)

16 kHz, 22.05 kHz, 24 kHz (for MPEG-2)

–Sampling frequency of WMA: 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz

This unit can play back MP3 files recorded in VBR (variable bit rate).

The maximum number of characters for:

–Folder names: 32 characters; File names: 32 characters; MP3 Tag: 64 characters; WMA Tag: 32 characters

This unit can recognize a total of 5 000 files, 255 folders (255 files per folder including folder without unsupported files), and of 8 hierarchies.

This unit does not support SD card reader.

This unit cannot recognize a USB device whose rating is other than 5 V and exceeds 500 mA.

USB devices equipped with special functions such as data security functions cannot be used with the unit.

Do not use a USB device with 2 or more partitions.

This unit may not recognized a USB device connected through a USB card reader.

This unit may not play back files in a USB device properly when using a USB extension cord.

This unit cannot play back the following files:

–MP3 files: encoded in MP3i and MP3 PRO format; an inappropriate format; layer 1/2.

–WMA files: encoded in lossless, professional, and voice format; not based upon Windows Media® Audio.

device

order you have intended.

stamp. The first track/folder written into the USB device

 

will be the first track/folder for playback.

 

 

Specifications

USB

• “CANNOT PLAY” flashes on the display.

• Attach a USB device that contains tracks encoded in

• “NO USB” appears on the display.

an appropriate format.

 

• The unit cannot detect the USB device.

• Reattach the USB device again.

 

While playing a track, sound is sometimes

The MP3/WMA tracks have not been properly copied

 

interrupted.

into the USB device.

 

 

Copy MP3/WMA tracks again into the USB device, and

 

 

try again.

 

The correct characters are not displayed

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

 

(e.g. album name).

and a limited number of symbols. (See page 2.)

 

The fuse blows.

Connect the red and black leads correctly.

 

Power cannot be turned on.

Check to make sure the yellow lead is connected.

Installation/connection

No sound from the speakers.

Check to make sure the speaker output lead is not

 

shortcircuited.

Sound is distorted.

• Check to make sure the speaker output lead is grounded.

 

• Check to make sure the “–” terminals of L and R

 

speakers are grounded in common.

Noise interfere with sounds.

Check to make sure the rear ground terminal connected

 

to the car’s chassis is using shorter and thicker cords.

This unit becomes hot.

• Check to make sure the speaker output lead is grounded.

 

 

 

• Check to make sure the “–” terminals of L and R

 

 

speakers are grounded in common.

 

This unit does not work at all.

Reset the unit. (See page 1.)

JVC bears no responsibility for any loss of the data in the USB mass storage class device while using this System.

Having TROUBLE with operation?

Please reset your unit

Refer to page of How to reset your unit

AUDIO AMPLIFIER SECTION

Maximum Power Output:

Front/Rear:

50 W per channel

Continuous Power Output (RMS):

Front/Rear:

19 W per channel into 4 Ω, 40 Hz

 

 

to 20 000 Hz at no more than 0.8%

 

 

total harmonic distortion.

Load Impedance:

4 Ω (4 Ω to 8 Ω allowance)

Tone Control Range:

Bass:

±12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz);

 

Q1.0, Q1.25, Q1.5, Q2.0

Middle:

±12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz,

 

2.5 kHz); Q0.75, Q1.0, Q1.25

Treble:

±12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz,

17.5kHz); Q (Fixed)

Frequency Response: 40 Hz to 20 000 Hz

Signal-to-Noise Ratio: 70 dB Line/subwoofer-Out Level/Impedance:

KD-R414: 5.0 V/20 kΩ load (full scale)

KD-R314: 2.5 V/20 kΩ load (full scale) Output Impedance: 1 kΩ

Other Terminal: AUX (auxiliary) input jack, USB input jack (for KD-R414), Antenna input

TUNER SECTION

Frequency Range:

FM:

87.5 MHz to 108.0 MHz

AM:

531 kHz to 1602 kHz

[FM Tuner]

Usable Sensitivity: 9.3 dBf (0.8 μV/75 Ω)

50 dB Quieting Sensitivity: 16.3 dBf (1.8 μV/75 Ω)

Alternate Channel Selectivity (400 kHz): 65 dB

Frequency Response: 40 Hz to 15 000 Hz

Stereo Separation: 40 dB

[AM Tuner]

Sensitivity/Selectivity: 20 μV/40 dB

CD PLAYER SECTION Type: Compact disc player

Signal Detection System: Non-contact optical pickup

(semiconductor laser)

 

 

 

 

Number of channels:

2 channels (stereo)

Frequency Response:

5 Hz to 20 000 Hz

Dynamic Range:

 

93 dB

 

Signal-to-Noise Ratio:

98 dB

 

Wow and Flutter:

 

Less than measurable limit

MP3 Decoding Format: (MPEG1/2 Audio Layer 3)

Max. Bit Rate:

 

320 kbps

WMA (Windows Media® Audio) Decoding Format:

Max. Bit Rate:

 

192 kbps

USB SECTION (for KD-R414)

 

USB Standard:

USB 1.1, USB 2.0

Data Transfer Rate (Full Speed): Max. 12 Mbps

Compatible Device: Mass storage class

Compatible File System: FAT 32/16/12

Playable Audio Format: MP3/WMA

Max. Current:

DC 5 V

 

 

500 mA

 

GENERAL

Power Requirement: Operating Voltage: DC 14.4 V (11 V to 16 V allowance)

Grounding System: Negative ground

Allowable Operating Temperature: 0°C to +40°C Dimensions (W × H × D) (approx.):

Installation Size: 182 mm × 52 mm × 160 mm

Panel Size: 188 mm × 58 mm × 6 mm Mass (approx.): 1.3 kg (excluding accessories)

Design and specifications are subject to change without notice.

4

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JVC GET0624-003A, KD-R412, KD-R312 manual More about this unit, Playing MP3/WMA tracks from a USB device for KD-R414, General

GET0624-003A, KD-R35, KD-R411, KD-R311, KD-R312 specifications

JVC has long been known for its commitment to quality audio equipment, and its KD series of car receivers is no exception. The JVC KD-R412, KD-R35, KD-R411, KD-R312, and KD-R311 are models that highlight the brand's focus on delivering robust sound performance coupled with user-friendly features.

The JVC KD-R412 stands out with its impressive playback capabilities. It supports various formats, including CD, CD-R/RW, and USB audio. Users can enjoy the convenience of connecting their smartphones through the front USB port, which also supports high-resolution audio playback. This model also features JVC's powerful MOS-FET amplifier, ensuring that listeners experience dynamic sound with clear highs and deep lows.

The KD-R35 offers a budget-friendly option without compromising on quality. Its 4-channel output, combined with a maximum power of 50 watts, delivers ample power for great sound in any vehicle. The KD-R35 also features Bluetooth connectivity, allowing for hands-free calling and audio streaming. The intuitive interface makes it easy for users to navigate through their favorite playlists while driving.

The KD-R411 is another excellent choice for music lovers. It includes a 3-band equalizer, enabling users to customize their audio to suit their preferences. The model is equipped with a digital clock and has a detachable face for enhanced security. Additionally, it supports dual phone connection, allowing users to easily switch between two devices.

The KD-R312 is recognized for its user-centric features, including a large, easy-to-read display. The model supports both USB and auxiliary input, making it versatile for various audio sources. It also comes with a built-in amplifier that ensures powerful sound output, making it perfect for anyone seeking an upgrade for their car's audio system.

Lastly, the KD-R311 rounds up the series with an emphasis on functionality and simplicity. It presents a clean design, making it ideal for straightforward audio needs. With AM/FM radio, CD playback, and a user-friendly interface, the KD-R311 captures the essence of what makes JVC receivers popular—quality and ease of use.

In summary, the JVC KD series models, including the KD-R412, KD-R35, KD-R411, KD-R312, and KD-R311, offer a range of features satisfying different preferences and budgets. With robust audio performance, user-friendly interfaces, and versatile connectivity options, these receivers make a strong case for an upgrade to any vehicle’s audio experience.