JVC KD-G246 Instructions Download Page 3

3

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 installation.

Notes:

•  Replace the fuse with one of the specified rating. If the fuse blows frequently, 

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 

 to 

Ω). If the maximum power is less than 50 W, change “AMP GAIN” setting to 

prevent the speakers from being damaged (see “General settings—PSM”).

•  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.

  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/Q: Bass: 

±12 dB at 60 Hz

 

 

Mid-range: ±12 dB at 1 kHz

 

 

Treble: 

±12 dB at 7.5 kHz

Frequency Response:  40 Hz to 20 000 Hz
Signal-to-Noise Ratio:  70 dB
Other Terminal: 

AUX (auxiliary) input jack

PREPARATION

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.

FM/AM

•  SSM automatic presetting does not work.

Store stations manually.

•  Static noise while listening to the radio.

Connect the antenna firmly.

Disc playback

•  Disc ejects.

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.
•  “PLEASE” and “EJECT” appear alternately 

on the display.

Insert a playable disc into the loading slot.

•  Microsoft and Windows Media are either registered trademarks or trademarks of Microsoft Corporation in the United 

States and/or other countries.

Indication

Item 

(        : Initial)

Setting

DEMO

• 

DEMO ON

• 

DEMO OFF

:  The display demonstration will be activated automatically if no operation is 

done for about 20 seconds.

:  Cancels.

CLK DISP

 

*

1

• 

ON

• 

OFF

:  The clock time is shown on the display at all times when the power is turned 

off.

:   Cancels; pressing DISP will show the clock time for about 5 seconds when the 

power is turned off.

CLOCK H

 (Hour)

1

 – 

12

:  [Initial: 1 (1:00)]

CLOCK M

 (Minute)

00

 – 

59

:  [Initial: 00 (1:00)]

DIMMER

• 

ON

 

• 

OFF

:  Dims the display and button illumination.
:  Cancels.

SCROLL

• 

ONCE

• 

AUTO

• 

OFF

  

:  Scrolls the displayed information once.
:  Repeats scrolling (at 5-second intervals).
:  Cancels. 
•  Pressing DISP for more than one second can scroll the display regardless of 

the setting.

AUX ADJ

A.ADJ 00 
– A.ADJ 05

:  Adjust the auxiliary input level to avoid the sudden increase of the output 

level when changing the source from external component connected to the 
AUX input jack on the control panel.

AMP GAIN 

*

2

• 

LOW PWR

• 

HIGH PWR

:  VOL 00 – VOL 30 (Select if the maximum power of each speaker is less than 

50 W to prevent the speaker from being damaged.)

:  VOL 00 – VOL 50

*

1

  If the power supply is not interrupted by turning off the ignition key of your car, it is recommended that you select “OFF” to 

save the car’s battery.

*

2

  The volume level automatically changes to “VOL 30” if you change to “LOW PWR” while the volume level is set higher than 

“VOL 30.”

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 required, 

which can be purchased at JVC car audio dealers.

TROUBLESHOOTING

  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 × 5 mm

 

Mass (approx.):

 

 

1.3 k

g

 (excluding accessories)

Design and specifications are subject to change without 
notice.

SPECIFICATIONS

 

INSTRUCTIONS

  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

  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

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 shorter 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?

  General settings—PSM

Select an item.

Adjust.

Finish

Enter PSM menu.

Heat sink

Prepare this before installation

I

Handles

E

Washer (ø5)

F

Lock nut (M5)

G

Mounting bolt
(M4 

×

 5 mm; 

M5 

×

 12.5 mm)

H

Rubber cushion

B

Sleeve

C

Trim plate

D

Power cord

Parts list for installation and connection

A

Control panel

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10/24/07   10:17:53 AM

10/24/07   10:17:53 AM

Summary of Contents for KD-G246

Page 1: ... are erased and the stations are stored anew Received stations are preset in No 1 lowest frequency to No 6 highest frequency When SSM is over the station stored in No 1 will be automatically tuned in 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 produc...

Page 2: ...icient signal strength Source display Track number Volume level indicator Time countdown indicator Main display time playback information EQ equalizer indicator Sound mode iEQ intelligent equalizer indicator LOUD loudness indicator Tr track indicator SETTINGS Select FM AM Select the bands Search for a station Auto Search Manual Search Hold either one of the buttons until M flashes on the display t...

Page 3: ... Cancels SCROLL ONCE AUTO OFF Scrolls the displayed information once Repeats scrolling at 5 second intervals Cancels Pressing DISP for more than one second can scroll the display regardless of the setting AUX ADJ A ADJ 00 A ADJ 05 Adjust the auxiliary input level to avoid the sudden increase of the output level when changing the source from external component connected to the AUX input jack on the...

Page 4: ...o install this unit correctly have it installed by a qualified technician Connect only the front speakers if your speaker system is two speaker system Before connecting Check the wiring in the vehicle carefully Incorrect connection may cause serious damage to this unit The leads of the power cord and those of the connector from the car body may be different in color 1 Cut the ISO connector 2 Conne...

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