JVC KD-G246 Instructions page 3

General settings—PSM
Enter PSM menu. Select an item.
Indication Item ( : Initial) Setting
DEMO • DEMO ON : The display demonstration will be activated automatically if no operation is
done for about 20 seconds.
• DEMO OFF : Cancels.
1
CLK DISP * • ON : The clock time is shown on the display at all times when the power is turned
off.
• 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 : Dims the display and button illumination.
• OFF : Cancels.
SCROLL • ONCE : Scrolls the displayed information once.
• AUTO : Repeats scrolling (at 5-second intervals).
• OFF : Cancels.
• Pressing DISP for more than one second can scroll the display regardless of
the setting.
AUX ADJ A.ADJ 00 : Adjust the auxiliary input level to avoid the sudden increase of the output
– A.ADJ 05 level when changing the source from external component connected to the
AUX input jack on the control panel.
AMP GAIN * 2 • LOW 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.)
• HIGH PWR : 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."
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/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
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.
Prepare this before installation
A
Control panel
E
Washer (ø5)
Adjust. Finish
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
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 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 "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.
Parts list for installation and connection
B
Sleeve
G
F Mounting bolt
(M4 × 5 mm;
Lock nut (M5)
M5 × 12.5 mm)
TROUBLESHOOTING
Symptoms
• Sound cannot be heard from the speakers. • Adjust the volume to the optimum level.
• This unit does not work at all.
• SSM automatic presetting does not work.
• Static noise while listening to the radio.
• Disc ejects.
• CD-R/CD-RW cannot be played back.
• Tracks on the CD-R/CD-RW cannot be
skipped.
• Disc can be neither played back nor ejected. • Unlock the disc.
• Disc sound is sometimes interrupted.
• "NO DISC" appears on the display.
• "PLEASE" and "EJECT" appear alternately
on the display.
• Microsoft and Windows Media are either registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.
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?
Heat sink
C
Trim plate
H
Rubber cushion
3
Remedies/Causes
• Check the cords and connections.
Reset the unit.
Store stations manually.
Connect the antenna firmly.
Insert the disc correctly.
• Insert a finalized CD-R/CD-RW.
• Finalize the CD-R/CD-RW with the component which you used
for recording.
• Eject the disc forcibly.
• Stop playback while driving on rough roads.
• Change the disc.
• Check the cords and connections.
Insert a playable disc into the loading slot.
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 kg (excluding accessories)
Design and specifications are subject to change without
notice.
D
Power cord
I
Handles