JVC Kd-r303 Instruction Manual

							3
 INSTRUCTIONS
 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
Signal-to-Noise Ratio:  70 dB
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:  531 kHz to 1 602 kHz 
[FM Tuner]
Usable 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
[AM Tuner]
Sensitivity/Selectivity: 20 μV/35 dB
SPECIFICATIONS
 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):
 Installation Size (approx.):
  182 mm × 52 mm × 160 mm
 Panel Size (approx.):
  188 mm × 58 mm × 6 mm
Mass (approx.):
 1.3 kg (excluding accessories)
Design and specifications are subject to change without 
notice.
TROUBLESHOOTING
Symptoms Remedies/Causes
General
•  Sound cannot be heard from the speakers. •  Adjust the volume to the optimum level.
•  Check the cords and connections.
•  This unit does not work at all. Reset the unit.
•  “AUX IN” cannot be selected. Check the “SRC SELECT” 
= “AUX IN” setting (see “Menu 
operations”).
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”).
Disc playback
•  Disc 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 be neither played back nor 
ejected.•  Unlock the disc.
•  Eject the disc forcibly.
•  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 
0, then insert a disc correctly.
MP3/WMA playback
•  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  or  to the file names.
•  Noise is generated. Skip to another track or change the disc. (Do not add the extension 
code  or  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 are not played back in the order you 
have intended.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.
•  Microsoft and Windows Media are either registered trademarks or trademarks of Microsoft Corporation in the United 
States and/or other countries.
 Sound adjustments
*  You can change “USER” settings and store as your own sound mode (see below).
 Storing your own sound mode
 Title assignment
You can assign titles to 30 station frequencies (FM and AM) using 8 characters (maximum) for each title.
To erase the entire title
In step 2 above...
 Menu operations
Menu items Selectable settings
DEMO
DEMO• DEMO ON: The display demonstration will be activated automatically if no operation is done for 
about 20 seconds.
• DEMO OFF: Cancels.
CLOCK
CLOCK DISP *1• CLOCK ON: The 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.
CLOCK SET:  Adjust the hour, then the minute. [Initial: 1:00]
EQEQ:  Select a preset sound mode suitable to the music genre.
 USER, ROCK, CLASSIC, POPS, HIP HOP, JAZZ
DISPLAY
DIMMER• DIMMER ON: Dims the display and button illumination.
• DIMMER OFF: Cancels.
SCROLL*
2• 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 ON: Shows the Tag information while playing MP3/WMA tracks.
• TAG OFF: Cancels.
TUNER
MONO *3• MONO ON: Activate monaural mode to improve FM reception, but stereo effect will be lost.
• MONO OFF: Restore the stereo effect.
IF BAND• AUTO: Increases the tuner selectivity to reduce interference noises between adjacent stations. 
(Stereo effect may be lost.)
• WIDE: Subject to interference noises from adjacent stations, but sound quality will not be 
degraded and the stereo effect will remain.
AUDIO
FADER*4R06 – F06: Adjust the front and rear speaker output balance. [Initial: 00]
BALANCE  L06 – R06: Adjust the left and right speaker output balance. [Initial: 00]
LOUD• LOUD OFF: Cancels.
• LOUD ON: Boost low and high frequencies to produce a well-balanced sound at a low volume 
level.
AUX ADJUST AUX 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.
*
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 Some characters or symbols will not be shown correctly (or will be blanked) on the display.
*3 Displayed only when the source is “FM.”
*4 If you are using a two-speaker system, set the fader level to “00.”Preset values
SETTINGS
Select “EQ”
Indication (For)BASS
TREBLE
LOUD
USER (Flat sound) 00 00 OFF
ROCK (Rock or disco music) +03 +01 ON
CLASSIC (Classical music) +01 –02 OFF
POPS (Light music) +04 +01 OFF
HIP HOP (Funk or rap music) +02 00 ON
JAZZ (Jazz music) +02 +03 OFF
Select “USER” for “EQ.”
This mode will be canceled if 
no operation is done for about 
30 seconds.
1 Select a tone.
 BASS Ô TREBLE2 Adjust the level.
 –06 to +06
3 Repeat 1 and 2 for the 
other tone if necessary.
Select “FM” or “AM.”
Show the title entry screen.
Select a character.Move to the next (or previous) character 
position.
Repeat steps 1 and 2 until you finish entering 
the title.
Finish the procedure.
Menu items Selectable settings
AUDIO
BEEP• BEEP ON: Activates the keypress tone.
• BEEP OFF: Deactivates the keypress tone.
AMP GAIN *
5• HIGH POWER: VOLUME 00 – VOLUME 50
• LOW POWER: VOLUME 00 – VOLUME 30 (Select if the maximum power of each speaker is less 
than 50 W to prevent damaging the speaker.)
SRC SELECT
AM *6• AM OFF: Disable “AM” in source selection.
• AM ON: Enable “AM” in source selection.
AUX IN *
7• AUX OFF: Disable “AUX IN” in source selection.
• AUX ON: Enable “AUX IN” in source selection.
*
5 The volume level automatically changes to “VOLUME 30” if you change to “LOW POWER” with the volume level is set 
higher than “VOLUME 30.”
*
6 Displayed only when any source other than “AM” is selected.
*7 Displayed only when any source other than “AUX IN” is selected.Initial: Underlined
or
Initial: Underlined While “USER” 
is shown on 
the display...
Repeat step 2 if necessary.
•  To return to the previous menu, press 
BACK.
KD-RC301[A]f.indd   3KD-RC301[A]f.indd   330/7/09   10:00:06 AM30/7/09   10:00:06 AM 
						

							4
INSTALLATION / CONNECTION
In dash-mounting
Do the required 
electrical connections.
Bend the appropriate tabs 
to hold the sleeve firmly 
in place.
When you stand the unit, be careful not 
to damage the fuse on the rear.
Removing the unit
Before removing the unit, release the rear section.
When installing the unit without using the sleeve
Flat type screws
—M5 
× 8 mm  *
Pocket
Flat type screws—M5  × 8 mm  *
Bracket*
Bracket*
*  Not supplied for this unit.
In a Toyota car for example, first remove the car radio and install the \
unit in its place.
TROUBLESHOOTING
• The fuse blows.
*  Are the red and black leads connected correctly?
•  Power cannot be turned on.
*  Is the yellow lead connected?
•  No sound from the speakers.
*  Is the speaker output lead short-circuited?
•  Sound is distorted.
*  Is the speaker output lead grounded?
*  Are the “–” terminals of L and R speakers grounded in common?
•  Noise interfere with sounds.
*  Is the rear ground terminal connected to the car’s chassis using shor\
ter and  thicker cords?
•  This unit becomes hot.
*  Is the speaker output lead grounded?
*  Are the “–” terminals of L and R speakers grounded in common?
•  This unit does not work at all.
*  Have you reset your unit?
Å  Control panel ........................................................................\
.................. 1ı Sleeve .................................................................\
.................................... 1Ç Trim plate ........................................................................\
....................... 1
ELECTRICAL CONNECTIONS
Purple
Front speaker 
(left)
To the automatic antenna if any 
(250 mA max.)
Blue Red
To an accessory terminal 
in the fuse block To a live terminal in the 
fuse block connecting 
to the car battery 
(bypassing the ignition 
switch) (constant 12 V)
Yellow 
*2
To the metallic body 
or chassis of the car
Black
Ignition switch
15 A fuse
Fuse block
Rear speaker 
(left)
Rear speaker 
(right) Front speaker 
(right) White with black stripe Rear ground terminal
Antenna  terminal
Gray with black stripeGreenGray
Green with black stripe
Purple with black stripe White
Typical connections
Use the front speaker lead if your speaker 
system is two-speaker system.
Rear line out
Before connecting:
 Check the wiring in the vehicle carefully. Incorrect connection may cau\
se serious damage to this 
unit. The leads of the power cord and those of the connector from the ca\
r body may be different in color.
1  Connect the colored leads of the power cord in the order specified in th\
e illustration below.
2 Connect the antenna cord.
3 Finally connect the wiring harness to the unit.
*1 Not supplied for this unit.
*2  Before checking the operation of this unit prior to installation, this l\
ead must be connected, otherwise the power cannot 
be turned on.
*
3  Firmly attach the ground wire to the metallic body or to the chassis of \
the car—to the place uncoated with paint (if 
coated with paint, remove the paint before attaching the wire). Failure\
 to do so may cause damage to the unit.
Rear 
speakers Remote lead
Remote lead (blue with white stripe) To the remote lead of 
other equipment or 
automatic antenna 
if any
Y-connector 
*1
JVC Amplifier
Connecting the external amplifier
Front speakers
Signal cord 
*1
PREPARATION
This unit is designed to operate on 
12 V DC, NEGATIVE ground electrical 
systems . If your vehicle does not have this system, a voltage inverter is requi\
red, 
which can be purchased at JVC car audio dealers.
PRECAUTIONS on power supply and speaker connections
INSTALLATION
The following illustration shows a typical installation. If you have any\
 questions or require information regarding installatio n 
kits, consult your JVC car audio dealer or a company supplying kits.
•  If you are not sure how to install this unit correctly, have it installe\
d by a qualified technician.
Parts list for installation and connection
Ï  Remote controller ........................................................................\
........... 1Ì Battery ................................................................\
.................................... 1Î Power cord ........................................................................\
...................... 1‰ Handles ................................................................\
................................... 2
To the remote lead of other equipment 
(200 mA max.)
Blue with white 
stripe
WARNINGS
To prevent short circuits, we recommend that you disconnect the battery’\
s 
negative terminal and make all electrical connections before installing \
the unit.
•  Be sure to ground this unit to the car’s chassis again after installa\
tion.
Notes:
•  Replace the fuse with one of the specified rating. If the fuse blows fre\
quently, 
consult your JVC car audio dealer.
•  It is recommended to connect to the speakers with maximum power of more \
 than 50 W (both at the rear and at the front, with an impedance of  4 Ω  to 8  Ω). 
If the maximum power is less than 50 W, change “ AMP GAIN” setting to 
prevent the speakers from being damaged (see 
“Menu operations”).
•  To prevent short-circuit, cover the terminals of  the UNUSED leads with insulating tape.
•  The heat sink becomes very hot after use. Be  careful not to touch it when removing this unit.
Heat sink
IMPORTANT
RECOMMENDED CONNECTION
Custom wiring harness *1
Install the unit at an angle of less 
than 30˚.
K D -R C301[A ]f.in dd   4KD-RC301[A]f.indd   43 0/7 /0 9   1 1:0 5:4 7 A M30/7/09   11:05:47 AM