JVC KD-R303 - Car stereo

KD-R303 - Car stereo JVC - Free user manual and instructions

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How to connect the JVC KD-R303 car radio?
Frequently Asked Questions - 28/01/2026
Response Notice-Facile

To properly connect the JVC KD-R303 car radio, follow these detailed steps:

1. Preparation

  • Make sure the vehicle is turned off.
  • Disconnect the battery to avoid any risk of short circuit or electric shock.

2. Identifying the wires

The car radio harness includes several wires, each with a specific function:

  • Power:
    • Red wire: +12V power (usually connected to a source that turns on with the ignition)
    • Yellow wire: permanent +12V power (to memorize settings)
    • Black wire: ground (earth)
  • Speakers: four pairs of wires for the left front, right front, left rear, and right rear speakers (usually in different colors, check specific color codes)
  • Antenna: specific socket for the radio antenna

3. Connection

  • Connect the red wire to the power source that activates with the ignition.
  • Connect the yellow wire to a permanent +12V power supply to keep the settings in memory.
  • Connect the black wire to the vehicle's ground.
  • Connect the speaker wires to the corresponding outputs while respecting the polarities.
  • Connect the antenna plug to the vehicle's antenna socket.

4. Verification and testing

  • Check that all connections are well insulated and secure.
  • Reconnect the battery.
  • Turn on the vehicle and test the car radio to ensure it is functioning properly (power, sound, radio reception).

Following these steps ensures a safe and functional connection of your JVC KD-R303 car radio.

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Download the instructions for your Car stereo in PDF format for free! Find your manual KD-R303 - JVC and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. KD-R303 by JVC.

USER MANUAL KD-R303 JVC

KD-R303/KD-R302/KD-R301

JVC KD-R303 - KD-R303/KD-R302/KD-R301 - 1

text_image Detachable

JVC KD-R303 - KD-R303/KD-R302/KD-R301 - 2

natural_image Line drawing of a JVC audio device casing with no text or symbols

Radio Data System

JVC KD-R303 - KD-R303/KD-R302/KD-R301 - 3
MP3 WMA

For canceling the display demonstration, see page 6.

For installation and connections, refer to the separate manual.

Thank you for purchasing a JVC product.

Please read all instructions carefully before operation, to ensure your complete understanding and to obtain the best possible performance from the unit.

IMPORTANT FOR LASER PRODUCTS

  1. CLASS 1 LASER PRODUCT
  2. CAUTION: Do not open the top cover. There are no user serviceable parts inside the unit; leave all servicing to qualified service personnel.
  3. CAUTION: Visible and/or invisible class 1M laser radiation when open. Do not view directly with optical instruments.
  4. REPRODUCTION OF LABEL: CAUTION LABEL, PLACED OUTSIDE THE UNIT.
CAUTIONATTENTIONAVISOVARNING注意
VISIBLE AND/OR INVISIBLE CLASS 1M LASER RADIATION WHEN OPEN. DO NOT SHOW DIRECTLY WITH OPTICAL INSTRUMENTS (EC60825-1:2001 (ENG)RAYONNEMENT LASER VISIBLE ET/OU INVISIBLE DE CLASSE I M UNE FOIS OUVERT, UNI PARESING, DIRECTMENT AVE DES INSTRUMENTS OPTIQUES. (FRA)RADIACION LÄSER DE CLASE 1M VISIBLE Y/O INVISIBLE CUANDO ESTA ADJAMIN NO MIRAR DIRECTAMENTE CON INSTRUMENTAL OPTICO. (ESP)SYNUG OCH/ELLER OSYNLIG LASER STRÄNLING, KLASS 1M, NÄR DENNA ENERMA, BEBTRAKTA EJ STRÄLEN MED OPTISKA INSTRUMENT. (SWE)CAPSIBLE AND/OR INVISIBLE CLASS II LASER RADIATION WHEN OPEN. DO NOT SHOW INTO BEAM. FDA 21 CFR (ENG)

JVC KD-R303 - IMPORTANT FOR LASER PRODUCTS - 1
Products

JVC KD-R303 - IMPORTANT FOR LASER PRODUCTS - 2
Battery

Information for Users on Disposal of Old Equipment and Batteries [European Union only]

These symbols indicate that the product and the battery with this symbol should not be disposed as general household waste at its end-of-life. If you wish to dispose of this product and the battery, please do so in accordance with applicable national legislation or other rules in your country and municipality.

By disposing of this product correctly, you will help to conserve natural resources and will help prevent potential negative effects on the environment and human health.

Notice:

The sign Pb below the symbol for batteries indicates that this battery contains lead.

Warning:

If you need to operate the unit while driving, be sure to look around carefully or you may be involved in a traffic accident.

Caution on volume setting:

Discs produce very little noise compared with other sources. Lower the volume before playing a disc to avoid damaging the speakers by the sudden increase of the output level.

For safety...

  • Do not raise the volume level too much, as this will block outside sounds, making driving dangerous.
  • Stop the car before performing any complicated operations.

Temperature inside the car...

If you have parked the car for a long time in hot or cold weather, wait until the temperature in the car becomes normal before operating the unit.

How to reset your unit
JVC KD-R303 - Temperature inside the car... - 1

text_image Diagram illustrating the process of device insertion or assembly, showing a device being processed into a device with a magnified view.
  • Your preset adjustments will also be erased.

How to forcibly eject a disc
JVC KD-R303 - Temperature inside the car... - 2
+ [Hold]

JVC KD-R303 - Temperature inside the car... - 3

  • Be careful not to drop the disc when it ejects.
  • If this does not work, reset your unit.

Detaching the control panel
JVC KD-R303 - Temperature inside the car... - 4

text_image Diagram showing a device with a button and an inset close-up of the button, labeled with number 1 and arrow.

JVC KD-R303 - Temperature inside the car... - 5

natural_image Technical line drawing of a mechanical component with no visible text or symbols

Attaching the control panel
JVC KD-R303 - Temperature inside the car... - 6

text_image Diagram showing a mechanical component with numbered parts labeled 1 and 2, indicating parts of a device or assembly.

CONTENTS

OPERATIONS

Basic operations.... 4

Preparation...... 6

Listening to the radio.... 7

Disc operations.... 10

EXTERNAL DEVICES

Listening to the other external components.... 11

SETTINGS

Selecting a preset sound mode 12

Menu operations.... 13

REFERENCES

More about this unit 15

Troubleshooting.... 17

Maintenance.... 19

Specifications.... 20

Basic operations

JVC KD-R303 - Basic operations - 1

text_image 1 2 3 4 5 6 7 8 9 JVC T/P SRC MENU BACK DISP 10 11 12 13 AUX 14

1 • FM/AM: Select preset station.
- CD: Select folder.
2 • Turn on the power.
- Attenuate the sound (if the power is on).
- Turn off the power [Hold].
3 Select the source.
FM → CD*1 → AUX IN*2 → AM*2 → (back to the beginning)
4 • Enter list operations.
- Enter Menu setting [Hold].
5 • Control the volume or selection [Turn].*3
- Confirm the selection [Press].*3
• FM: Enter SSM preset mode [Hold].*3
- CD: Enter playback mode [Hold].*3

6 Loading slot

7 Display window

8 Eject disc.
9 • Activate/deactivate TA Standby Reception. • Enter PTY Searching mode [Hold].

10 Detach the panel.

11 Change the display information.

12 • FM/AM: Search for station.

- CD: Select track.

13 Return to the previous menu.

14 AUX (auxiliary) input jack

*1 You cannot select "CD" as the playback source if no disc is in the unit.
*2 You cannot select these sources if they were disabled in the Menu (see "Menu operations" on page 15).
*3 Also known as "Control dial" in this manual.

JVC KD-R303 - Basic operations - 2

text_image 1 2 3 4 5 6 7 Tr 886 CLASSIC HIPHOP JAZZ ROCK POPS USER DISC RND RPT EQ LOUD TAG AF REG TP PTY STMO 8 9 10 11

1 Tr (track) indicator
2 Source display / Track number / Folder number / Time countdown indicator
3 DISC indicator
4 Sound mode indicators—CLASSIC, HIP HOP, JAZZ, ROCK, POPS, USER
5 Playback mode / item indicators— RND (random), 📞 (disc), 📄 (folder), RPT (repeat)
6 EQ (equalizer) indicator

7 LOUD (loudness) indicator
8 Disc information indicators— TAG (Tag information), 🎨 (track/file), 📞 (folder)
9 Main display
10 Radio Data System indicators—AF, REG, TP, PTY
11 Tuner reception indicators—ST (stereo), MO (monaural)

Preparation

Cancel the display demonstration and set the clock

• See also page 13.

1JVC KD-R303 - Cancel the display demonstration and set the clock - 1Turn on the power.
2JVC KD-R303 - Cancel the display demonstration and set the clock - 2 [Hold]JVC KD-R303 - Cancel the display demonstration and set the clock - 3 | [Turn] → [Press]Cancel the display demonstrationsSelect “DEMO,” then “DEMO OFF.”Set the clockSelect “CLOCK” → “CLOCK SET.”Adjust the hour, then press control dial once to proceed to adjust the minute.Select “24H/12H,” then “24 HOUR” or “12 HOUR.”To return to the previous menu, press BACK.
DISPWhen the power is turned off: Check the current clock time when “CLOCK DISP” is set to “CLOCK OFF,” (see page 13)When the power is turned on: Change the display information of the current source
FM/AMStation Frequency → Clock → (back to the beginning)
FM Radio Data SystemStation name (PS) → Station Frequency → Programme type (PTY) → Clock → (back to the beginning)
CDAudio CD/CD Text: Disc title/performer*1 → Track title*1 → Current track number with the elapsed playing time → Current track number with the clock time → (back to the beginning)MP3/WMA: Album name/performer (folder name)*2 → Track title (file name)*2 → Current track number with the elapsed playing time → Current track number with the clock time → (back to the beginning)

*1 If the current disc is an audio CD, "NO NAME" appears.
*2 If an MP3/WMA file does not have Tag information or "TAG DISPLAY" is set to "TAG OFF" (see page 13), folder name and file name appear.

Listening to the radio

1SRCSelect “FM” or “AM.”
2JVC KD-R303 - Listening to the radio - 1Search for a station to listen—Auto Search.Manual Search: Hold either one of the buttons until “M” flashes on the display, then press it repeatedly.When receiving an FM stereo broadcast with sufficient signal strength, “ST” lights up on the display.

When an FM stereo broadcast is hard to receive

• See also page 14.

JVC KD-R303 - When an FM stereo broadcast is hard to receive - 1

flowchart
graph TD
    A["MENU [Hold"]] --> B["↓"]
    B --> C["[Turn"] → [Press]]

Select "TUNER" → "MONO" → "MONO ON"

Reception improves, but stereo effect will be lost.

- "MO" lights up on the display.

To restore the stereo effect, repeat the same procedure to select "MONO OFF." The M0 indicator goes off.

■ FM station automatic presetting —SSM (Strong-station Sequential Memory)

You can preset up to 18 stations for FM.

1 While listening to a station...

JVC KD-R303 - ■ FM station automatic presetting —SSM (Strong-station Sequential Memory) - 1

text_image [Hold]

2 Select the preset number range you want to store.

JVC KD-R303 - ■ FM station automatic presetting —SSM (Strong-station Sequential Memory) - 2

flowchart
graph LR
    A["Circle with arrowheads"] --> B["SSM 01-06 ↔ SSM 07-12 ↔ SSM 13-18"]

3
JVC KD-R303 - ■ FM station automatic presetting —SSM (Strong-station Sequential Memory) - 3

text_image [Press]

JVC KD-R303 - ■ FM station automatic presetting —SSM (Strong-station Sequential Memory) - 4

text_image SSM

Local FM stations with the strongest signals are searched and stored automatically.

To preset other 6 stations, repeat from step 1 again.

Manual presetting (FM/AM)

You can preset up to 18 stations for FM and 6 stations for AM.

Ex.: Storing FM station of 92.50 MHz into preset number "04."

1
JVC KD-R303 - Manual presetting (FM/AM) - 1

JVC KD-R303 - Manual presetting (FM/AM) - 2

text_image 92.50MHz

2 Select preset number "04."

JVC KD-R303 - Manual presetting (FM/AM) - 3

flowchart
graph LR
    A["MENU"] --> B["[Turn"]]

Continued on the next page

3
JVC KD-R303 - Manual presetting (FM/AM) - 4
[Hold]

JVC KD-R303 - Manual presetting (FM/AM) - 5

text_image P04 MEMORY

Selecting preset station
JVC KD-R303 - Manual presetting (FM/AM) - 6

flowchart
graph TD
    A["OR"] --> B["MENU"]
    B --> C["[Turn"] → [Press]]

The following features are available only for FM Radio Data System stations.

JVC KD-R303 - Manual presetting (FM/AM) - 7

You can tune in to a station broadcasting your favorite programme by searching for a PTY code.

1
JVC KD-R303 - Searching for FM Radio Data System programme — PTY Search - 1
[Hold]

The last selected PTY code appears.

2 Select one of your favorite programme types or a PTY code.

JVC KD-R303 - Select one of your favorite programme types or a PTY code. - 1

text_image [Turn]

3 Start searching for your favorite programme.

JVC KD-R303 - Start searching for your favorite programme. - 1
or

JVC KD-R303 - Start searching for your favorite programme. - 2
[Press]

If a station is broadcasting a programme of the same PTY code as you have selected, that station is tuned in.

JVC KD-R303 - Start searching for your favorite programme. - 3

Using the standby receptions

TA Standby Reception

TA Standby Reception allows the unit to switch temporarily to Traffic Announcement (TA) from any source other than AM.

The volume changes to the preset TA volume level if the current level is lower than the preset level (see page 14).

To activate TA Standby Reception

JVC KD-R303 - To activate TA Standby Reception - 1

The TP (Traffic Programme) indicator either lights up or flashes.

  • If the TP indicator lights up, TA Standby Reception is activated.
  • If the TP indicator flashes, TA Standby Reception is not yet activated. (This occurs when you are listening to an FM station without the Radio Data System signals required for TA Standby Reception.)
    To activate the reception, tune in to another station providing these signals. The TP indicator will stop flashing and remain lit.

To deactivate the TA Standby Reception

JVC KD-R303 - To deactivate the TA Standby Reception - 1

The TP indicator goes off.

PTY Standby Reception

PTY Standby Reception allows the unit to switch temporarily to your favorite PTY programme from any source other than AM.

To activate and select your favorite PTY code for PTY Standby Reception, see page 14.

The PTY indicator either lights up or flashes.

  • If the PTY indicator lights up, PTY Standby Reception is activated.
  • If the PTY indicator flashes, PTY Standby Reception is not yet activated.
    To activate the reception, tune in to another station providing these signals. The PTY indicator will stop flashing and remain lit.

To deactivate the PTY Standby Reception, select "PTY OFF" for the PTY code (see page 14). The PTY indicator goes off.

Tracing the same programme—Network-Tracking Reception

When driving in an area where FM reception is not sufficient enough, this unit automatically tunes in to another FM Radio Data System station of the same network, possibly broadcasting the same programme with stronger signals (see the illustration below).

Programme A broadcasting on different frequency areas (01 - 05)

JVC KD-R303 - Tracing the same programme—Network-Tracking Reception - 1

flowchart
graph TD
    A["Car"] --> B["Sensor 01"]
    B --> C["Sensor 02"]
    C --> D["Sensor 03"]
    D --> E["Sensor 04"]
    E --> F["Sensor 05"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333

When shipped from the factory, Network-Tracking Reception is activated.

To change the Network-Tracking Reception setting, see "AF-REG" on page 14.

Usually when you select a preset number, the station preset in that number is tuned in.

If the signals from the FM Radio Data System preset station are not sufficient for good reception, this unit, using the AF data, tunes in to another frequency possibly broadcasting the same programme as the original preset station is broadcasting.

  • The unit takes some time to tune in to another station using programme search.
    • See also page 14.

PTY codes

NEWS, AFFAIRS, INFO, SPORT, EDUCATE, DRAMA, CULTURE, SCIENCE, VARIED, POP M (music), ROCK M (music), EASY M (music), LIGHT M (music), CLASSICS, OTHER M (music), WEATHER, FINANCE, CHILDREN, SOCIAL, RELIGION, PHONE IN, TRAVEL, LEISURE, JAZZ, COUNTRY, NATION M (music), OLDIES, FOLK M (music), DOCUMENT

Disc operations

1JVC KD-R303 - Disc operations - 1Turn on the power.
2JVC KD-R303 - Disc operations - 2Insert a disc.All tracks will be played repeatedly until you change the source or eject the disc.

Stop playing and ejecting the disc

JVC KD-R303 - Stop playing and ejecting the disc - 1

- "NO DISC" appears. Press SRC to listen to another playback source.

Prohibiting disc ejection

JVC KD-R303 - Prohibiting disc ejection - 1

+ [Hold]

JVC KD-R303 - Prohibiting disc ejection - 2

To cancel the prohibition, repeat the same procedure.

Selecting a track/folder

JVC KD-R303 - Selecting a track/folder - 1

JVC KD-R303 - Selecting a track/folder - 2

JVC KD-R303 - Selecting a track/folder - 3

[Turn] → [Press]

  • For MP3/WMA discs, select the desired folder, then the desired track by performing the control dial.
    • To return to the previous menu, press BACK.

Pressing (or holding) the following buttons allows you to...

JVC KD-R303 - Selecting a track/folder - 4

MP3/WMA: Select folder

JVC KD-R303 - Selecting a track/folder - 5

[Press]Select track [Hold] Reverse/fast-forward track

Selecting the playback modes

You can use only one of the following playback modes at a time.

1

JVC KD-R303 - Selecting the playback modes - 1

[Hold]

2

JVC KD-R303 - Selecting the playback modes - 2

[Turn] → [Press]

REPEAT ↔ RANDOM

3

JVC KD-R303 - Selecting the playback modes - 3

[Turn] → [Press]

REPEAT
TRACK RPT: Repeats current track
FOLDER RPT: MP3/WMA: Repeats current folder
RANDOM
FOLDER RND: MP3/WMA: Randomly plays all tracks of current folder, then tracks of next folders
ALL RND: Randomly plays all tracks
  • To cancel repeat play or random play, select "RPT OFF" or "RND OFF."
    • To return to the previous menu, press BACK.

Listening to the other external components

You can connect an external component to AUX (auxiliary) input jack on the control panel.

Preparation: Make sure "AUX ON" is selected in the "SRC SELECT" → "AUX IN" setting, see page 15.

1JVC KD-R303 - Listening to the other external components - 1Select “AUX IN.”
2Turn on the connected component and start playing the source.
3JVC KD-R303 - Listening to the other external components - 2 [Turn]Adjust the volume.You can adjust the auxiliary input level to avoid the sudden increase of the output level (see “AUX ADJUST” on page 14).
4Adjust the sound as you want (see page 12).

Connecting an external component to the AUX input jack
JVC KD-R303 - Listening to the other external components - 3

text_image AUX 3.5 mm stereo mini plug (not supplied) Portable audio player, etc.

Selecting a preset sound mode

You can select a preset sound mode suitable to the music genre.

• See also page 13 ("EQ").

JVC KD-R303 - Selecting a preset sound mode - 1

flowchart
graph TD
    A["MENU [Hold"]] --> B["Select "EQ""]
    B --> C["[Turn"] → [Press]]

Preset value setting for each sound mode

Indication (For)\Preset valuesBASSTREBLELOUD
USER (Flat sound)0000OFF
ROCK (Rock or disco music)+03+01ON
CLASSIC (Classical music)+01-02OFF
POPS (Light music)+04+01OFF
HIP HOP (Funk or rap music)+0200ON
JAZZ (Jazz music)+02+03OFF

Storing your own sound mode

You can store your own adjustments in memory.

1 Select "USER" for "EQ."

JVC KD-R303 - Select "USER" for "EQ." - 1

flowchart
graph TD
    A["MENU [Hold"]] --> B["Select "EQ" → "USER""]
    B --> C["[Turn"] → [Press]]

2 While "USER" is shown on the display...

JVC KD-R303 - While "USER" is shown on the display... - 1

text_image [Hold]

- If no operation is done for about 30 seconds, the operation will be canceled.

3 Select a tone.

JVC KD-R303 - Select a tone. - 1

text_image [Turn] → [Press] BASS ↔ TREBLE

4 Adjust the level.

ToneLevel
BASS-06 to +06
TREBLE-06 to +06

• To return to the previous menu, press BACK.

5 Finish the procedure.

JVC KD-R303 - Finish the procedure. - 1

text_image [Press]

Menu operations

1JVC KD-R303 - Finish the procedure. - 2 [Hold]2JVC KD-R303 - Finish the procedure. - 3 [Turn] → [Press]3 Repeat step 2 if necessary.To return to the previous menu, press BACK.

Initial: Underlined

CategoryMenu itemsSelectable settings, [reference page]
DEMODEMO Display demonstration• DEMO ON : Display demonstration will be activated automatically if no operation is done for about 20 seconds, [6]. • DEMO OFF : Cancels.
CLOCKCLOCK DISP*1Clock display• CLOCK ON : Clock time is shown on the display at all times when the power is turned off.• CLOCK OFF : Cancels; pressing DISP will show the clock time for about 5 seconds when the power is turned off, [6].
CLOCK SETClock setting: Adjust the hour, then the minute, [6].[Initial: 0:00]
24H/12HTime display mode• 24 HOUR : See also page 6 for setting.• 12 HOUR
CLOCK ADJ *2Clock adjustment• AUTO : The built-in clock is automatically adjusted using the CT (clock time) data in the Radio Data System signal.• OFF : Cancels.
EQEQ Equalizer: Select a preset sound mode suitable to the music genre.USER, ROCK, CLASSIC, POPS, HIP HOP, JAZZ
DISPLAYDIMMER Dimmer• DIMMER ON : Dims the display and button illumination.• DIMMER OFF : Cancels.
SCROLL *3Scroll• SCROLL ONCE : Scrolls the displayed information once.• SCROLL AUTO : Repeats scrolling (at 5-second intervals).• SCROLL OFF : Cancels.Pressing DISP for more than one second can scroll the display regardless of the setting.
TAG DISPLAY Tag display• TAG ON : Shows the Tag information while playing MP3/WMA tracks.• TAG OFF : Cancels.

*1 If the power supply is not interrupted by turning off the ignition key of your car, it is recommended to select "CLOCK OFF" to save the car's battery.
^*2 Takes effect only when CT (clock time) data is received.
*3 Some characters or symbols will not be shown correctly (or will be blanked) on the display.

Continued on the next page

CategoryMenu itemsSelectable settings, [reference page]
TUNERAF-REG *4Alternative frequency/regionalization reception• AF ON: When the currently received signals become weak, the unit switches to another station (the programme may differ from the one currently received), [9].• The AF indicator lights up.
• AF-REG ON: When the currently received signals become weak, the unit switches to another station broadcasting the same programme.• The AF and REG indicators light up.
• OFF: Cancels.
PTY-STANDBY *4PTY standbyPTY OFF, PTY codesActivates PTY Standby Reception with one of the PTY codes, [9].
TA VOLUME *4Traffic announcement volumeVOLUME 00– VOLUME 50(or VOLUME 00– VOLUME 30)*5Initial: VOLUME 15
P-SEARCH *4Programme search• SEARCH ON• SEARCH OFF: Activates Programme Search, [9].: Cancels.
MONO*6Monaural mode• MONO ON• MONO OFF: Activate monaural mode to improve FM reception, but stereo effect will be lost, [7].: Restore the stereo effect.
IF BANDIntermediate frequency band• AUTO• WIDE: Increases the tuner selectivity to reduce interference noises between adjacent stations. (Stereo effect may be lost.): Subject to interference noises from adjacent stations, but sound quality will not be degraded and the stereo effect will remain.
AUDIOFADER*7FaderR06 – F06: Adjust the front and rear speaker output balance. [Initial: 00]
BALANCEBalanceL06 – R06: Adjust the left and right speaker output balance. [Initial: 00]
LOUDLoudness• LOUD OFF• LOUD ON: Cancels.: Boost low and high frequencies to produce a well-balanced sound at a low volume level.
AUX ADJUSTAuxiliary input level adjustmentAUX ADJ 00— AUX ADJ 05: Adjust the auxiliary input level to avoid the sudden increase of the output level when changing the source to external component connected to the AUX input jack on the control panel.

*4 Only for FM Radio Data System stations.

*5 Depends on the amplifier gain control.

*6 Displayed only when the source is "FM."

*7 If you are using a two-speaker system, set the fader level to "00."

CategoryMenu itemsSelectable settings, [reference page]
AUDIOBEEPKeypress toneBEEP OFF : Deactivates the keypress tone.BEEP ON : Activates the keypress tone.
TEL MUTINGTelephone mutingMUTING 1/MUTING 2 : Select either one which mutes the sounds while using a cellular phone.MUTING OFF : Cancels.
AMP GAIN*8Amplifier gain controlLOW POWER : VOLUME 00 – VOLUME 30 (Select if the maximum power of each speaker is less than 50 W to prevent damaging the speaker.)HIGH POWER : VOLUME 00 – VOLUME 50
SRC SELECTAM*9AM stationAM OFF : Disable “AM” in source selection.AM ON : Enable “AM” in source selection, [4].
AUX IN*10Auxiliary inputAUX OFF : Disable “AUX IN” in source selection.AUX ON : Enable “AUX IN” in source selection, [4].

*8 The volume level automatically changes to "VOLUME 30" if you change to "LOW POWER" with the volume level set higher than "VOLUME 30."
*9 Displayed only when any source other than "AM" is selected.
*10 Displayed only when any source other than "AUX IN" is selected.

More about this unit

Basic operations

Turning on the power

- By pressing SRC button on the unit, you can also turn on the power. If the source is ready, playback also starts.

Turning off the power

- 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.

General

- 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.

  • After ejecting a disc, "NO DISC" appears and you cannot operate some of the buttons. Insert another disc or press SRC to select another playback source.
  • If no operation is done for about 30 seconds after pressing MENU button, the operation will be canceled.

Tuner operations

Storing stations in memory

  • 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.

FM Radio Data System operations

  • Network-Tracking Reception requires two types of Radio Data System signals—PI (Programme Identification) and AF (Alternative Frequency) to work correctly. Without receiving these data correctly, Network-Tracking Reception will not operate correctly.
  • If a Traffic Announcement is received by TA Standby Reception, the volume level automatically changes to the preset level (TA VOL) if the current level is lower than the preset level.
  • When Alternative Frequency Reception is activated (with AF selected), Network-Tracking Reception is also activated automatically. On the other hand, Network-Tracking Reception cannot be deactivated without deactivating Alternative Frequency Reception. (See page 14.)

JVC KD-R303 - FM Radio Data System operations - 1

Disc 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/WMA formats.
  • When a disc is inserted upside down, "PLEASE" and "EJECT" appear alternately on the display. Press ▲ to eject the disc.
  • MP3 and WMA "tracks" (words "file" and "track" are used interchangeably) are recorded in "folders."
  • While fast-forwarding or reversing on an MP3 or WMA disc, you can only hear intermittent sounds.

Playing a CD-R or CD-RW

  • Use only "finalized" CD-Rs or CD-RWs.
  • This unit can only play back files of the same type as those detected first if a disc includes both audio CD (CD-DA) files and MP3/WMA files.

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

  • Some CD-Rs or CD-RWs may not play back on this unit because of their disc characteristics, or for the following reasons:
    – 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.
  • Do not use the following CD-Rs or CD-RWs:
  • Discs with stickers, labels, or a protective seal stuck to the surface.
  • Discs on which labels can be directly printed by an ink jet printer.
    Using these discs under high temperature or high humidity may cause malfunctions or damage to the unit.

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: 8 kbps — 320 kbps
  • Sampling frequency: 48 kHz, 44.1 kHz, 32 kHz (for MPEG-1) 24 kHz, 22.05 kHz, 16 kHz (for MPEG-2)
    – Disc format: ISO 9660 Level 1/Level 2, Romeo, Joliet, Windows long file name

- The maximum number of characters for file/folder names vary depending on the disc format used (includes 4 extension characters—<.mp3> or <.wma>).

– ISO 9660 Level 1: up to 12 characters
– ISO 9660 Level 2: up to 31 characters
– Romeo: up to 128 characters
– Joliet: up to 64 characters
– Windows long file name: up to 128 characters

  • 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.
  • MP3 files encoded in an inappropriate format.
  • MP3 files encoded with Layer 1/2.

– WMA files encoded in lossless, professional, and voice format.
- WMA files which are not based upon Windows Media® Audio.
– WMA files copy-protected with DRM.
– Files which have data such as AIFF, ATRAC3, etc.

- The search function works but search speed is not constant.

Ejecting a disc

- 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.

- If you change the "AMP GAIN" setting from "HIGH POWER" to "LOW POWER" while the volume level is set higher than "VOLUME 30," the unit automatically changes the volume level to "VOLUME 30."

Troubleshooting

What appears to be trouble is not always serious. Check the following points before calling a service center.

  • Microsoft and Windows Media are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
SymptomsRemedies/Causes
GeneralSound cannot be heard from the speakers.Adjust the volume to the optimum level.Check the cords and connections.
The unit does not work at all.Reset the unit (see page 3).
“AUX IN” cannot be selected.Check the “SRC SELECT” → “AUX IN” setting (see page 15).
FM/AMSSM automatic presetting does not work.Store stations manually.
Static noise while listening to the radio.Connect the aerial firmly.
“AM” cannot be selected.Check the “SRC SELECT” → “AM” setting (see page 15).
Disc playbackDisc cannot be played back.Insert the disc correctly.
CD-R/CD-RW cannot be played back.Tracks on the CD-R/CD-RW cannot be skipped.Insert a finalized CD-R/CD-RW.Finalize the CD-R/CD-RW with the component which you used for recording.
Disc can neither be played back nor ejected.Unlock the disc (see page 10).Eject the disc forcibly (see page 3).
Disc sound is sometimes interrupted.Stop playback while driving on rough roads.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 on the display.Press ▲, then insert a disc correctly.
MP3/WMA playbackDisc 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 (“READING” keeps flashing on the display).Do not use too many hierarchical levels and folders.
Tracks do not play back in the order you have intended them to play.The playback order is determined when the files are recorded.
The elapsed playing time is not correct.This sometimes occurs during playback. This is caused by how the tracks are recorded on the disc.
The correct characters are not displayed (e.g. album name).This unit can only display letters (upper case), numbers, and a limited number of symbols.

Maintenance

How to clean the connectors

Frequent detachment will deteriorate the connectors. To minimize this possibility, periodically wipe the connectors with a cotton swab or cloth moistened with alcohol, being careful not to damage the connectors.

JVC KD-R303 - How to clean the connectors - 1

text_image Connectors

Moisture condensation

Moisture may condense on the lens inside the unit in the following cases:

• After starting the heater in the car.
- If it becomes very humid inside the car.

Should this occur, the unit may malfunction. In this case, eject the disc and leave the unit turned on for a few hours until the moisture has evaporated.

How to handle discs

When removing a disc from its

case, press down the center holder of the case and lift the disc out, holding it by the edges.

Center holder

JVC KD-R303 - When removing a disc from its - 1

- Always hold the disc by the edges. Do not touch its recording surface.

When storing a disc in its case, gently insert the disc around the center holder (with the printed surface facing up).

- Make sure to store discs in cases after use.

To keep discs clean

A dirty disc may not play correctly. If a disc does become dirty, wipe it with a soft cloth in a straight line from center to edge.

JVC KD-R303 - To keep discs clean - 1

- Do not use any solvents (for example, conventional record cleaner, spray, thinner, benzine, etc.) to clean discs.

To play new discs

New discs may have some rough spots around the inner and outer edges. If such a disc is used, this unit may reject the disc.

JVC KD-R303 - To play new discs - 1

To remove these rough spots, rub the edges with a pencil or ball-point pen, etc.

Do not use the following discs:

Single CD (8 cm disc)

JVC KD-R303 - Do not use the following discs: - 1

Sticker and sticker residue

Warped disc

JVC KD-R303 - Do not use the following discs: - 2

Stick-on label

JVC KD-R303 - Do not use the following discs: - 3

Unusual shape

JVC KD-R303 - Do not use the following discs: - 4

C-thru Disc (semi-transparent disc)

JVC KD-R303 - Do not use the following discs: - 5

Transparent or semi-transparent parts on its recording area

JVC KD-R303 - Do not use the following discs: - 6

JVC KD-R303 - Do not use the following discs: - 7

Specifications

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 at 100 Hz
Treble:±12 dB at 10 kHz
Frequency Response:40 Hz to 20 000 Hz
Line-Out Level/Impedance:2.5 V/20 kΩ load (full scale)
Output Impedance:1 kΩ
Other Terminal:AUX (auxiliary) input jack
TUNER SECTION
Frequency Range:FM:87.5 MHz to 108.0 MHz
AM:MW: 522 kHz to 1 620 kHzLW: 144 kHz to 279 kHz
FM TunerUsable Sensitivity:11.3 dBf (1.0 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:30 dB
MW TunerSensitivity:20 μV
Selectivity:35 dB
LW TunerSensitivity:50 μV
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
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 × 13 mm
Mass:1.3 kg (excluding accessories)

Design and specifications are subject to change without notice.

IMPORTANT POUR PRODUITS LASER

text_image Diagram illustrating a device transformation process, showing a device being processed into a device with a pen inserted.
text_image Diagram illustrating two steps of a device component with labeled parts and directional arrows indicating movement or assembly.
text_image Diagram of a mechanical component with numbered parts labeled 1 and 2, showing directional arrows indicating movement or force.

TABLE DES MATIERES

FONCTIONNEMENT

flowchart
graph LR
    A["[Tournez"]] --> B["SSM 01-06 ↔ SSM 07-12 ↔ SSM 13-18"]

3
JVC KD-R303 - FONCTIONNEMENT - 1

natural_image Technical line drawing of a mechanical component with no visible text or symbols

Connecteurs

Having TROUBLE with operation?

Please reset your unit

Refer to page of How to reset your unit

This apparatus is in conformance with the valid European directives and standards regarding electromagnetic compatibility and electrical safety.

European representative of Victor Company of Japan, Limited is:

JVC Technical Services Europe GmbH

Postfach 10 05 04

61145 Friedberg

Germany

Cher(e) client(e),

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Product information

Brand : JVC

Model : KD-R303

Category : Car stereo