JVC KD-G124 Guide

KD-G124/KD-G123
Installation/Connection Manual
GET0332-002A
[UI]
1005DTSMDTJEIN
EN
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.
1
© 2005 Victor Company of Japan, Limited
WARNINGS
To prevent short circuits, we recommend that you disconnect the battery’s negative terminal and ma e all electrical connections before installing the unit.
• Be sure to ground this unit to the car’s chassis again a ter 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 spea ers 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 spea ers from being damaged (see page 9 of the INSTRUCTIONS).
• To prevent short-circuit, cover the terminals of the UNUSED leads with insulating tape.
• The heat sin becomes very hot after use. Be careful not to touch it when removing this unit.
Heat sin
PRECAUTIONS on power supply and speaker connections:
• DO NOT connect the speaker leads o the power cord to the car battery; otherwise, the unit
will be seriously damaged.
• BEFORE connecting the spea er leads of the power cord to the spea ers, chec the spea er wiring in
your car.
J
Handles
F
Washer (ø5)
G
Loc nut (M5)
H
Mounting bolt (M5 × 20 mm)
I
Rubber cushion
A / B
Hard case/Control panel
D
Trim plate
E
Power cord
Parts list for installation and connection
The following parts are provided for this unit.
After chec ing them, please set them correctly.
C
Sleeve
INSTALLATION (IN-DASH MOUNTING)
The following illustration shows a typical installation. If you have any questions or require information regarding installation its, consult your JVC car audio dealer or a company supplying its.
• If you are not sure how to install this unit correctly, have it installed by a qualified technician.
Do the required electrical connections.
*1 When you stand the unit, be careful not to
damage the fuse on the rear.
Bend the appropriate tabs to hold the
sleeve firmly in place.
Removing the unit
Before removing the unit, release the rear section.
When installing the unit without using the sleeve
In a Toyota car for example, first remove the car radio and install the unit in its place.
When using the optional stay
Note : When installing the unit on the mounting brac et, ma e sure to use the 8 mm-long screws. If longer screws are
used, they could damage the unit.
Brac et*
Brac et*
* Not supplied for this unit.
Flat type screws (M5 × 8 mm)*
Poc et
Flat type screws (M5 × 8 mm)*
Screw (option)
Stay (option)
Fire wall
Dashboard
Install the unit at an angle of less than 30˚.
Insert the two handles, then pull them as illustrated so that
the unit can be removed.
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Typical connections
Be ore connecting: Chec 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 Connect the colored leads of the power cord in the order specified in the illustration below.
2 Connect the antenna cord.
3 Finally connect the wiring harness to the unit.
A
ELECTRICAL CONNECTIONS
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TROUBLESHOOTING
• The use blows.
* Are the red and blac leads connected correctly?
• Power cannot be turned on.
* Is the yellow lead connected?
• No sound rom the speakers.
* Is the spea er output lead short-circuited?
• Sound is distorted.
* Is the spea er output lead grounded?
* Are the “–” terminals of L and R spea ers grounded in common?
• Noise inter ere with sounds.
* Is the rear ground terminal connected to the car’s chassis using shorter and thic er cords?
• This unit becomes hot.
* Is the spea er output lead grounded?
* Are the “–” terminals of L and R spea ers grounded in common?
• This unit does not work at all.
* Have you reset your unit?
Connecting the external amplifier or subwoofer
You can connect an amplifier to upgrade your car stereo system.
• Connect the remote lead (blue with white stripe) to the remote lead of the other
equipment so that it can be controlled through this unit.
• Disconnect the speakers rom this unit, connect them to the ampli ier. Leave the
speaker leads o this unit unused.
B
*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.
*4 Signal cord (not supplied for this unit)
KD-G124
KD-G123
Set “L/O MODE” to “REAR” (See page 9 o
the INSTRUCTIONS.)
Set “L/O MODE” to “WOOFER”
(See page 9 o the
INSTRUCTIONS.)
Y-connector (not supplied for this unit)
Remote lead
Remote lead (Blue with white stripe)
To the remote lead of other equipment or automatic antenna if any
Front spea ers
You can connect a power amplifier for rear
spea ers.
You can also connect a
subwoofer to the REAR
LINE OUT terminals.
Subwoofer
JVC Amplifier
JVC Amplifier
Rear spea ers
Rear ground
terminal
Antenna terminal 15 A fuse
Line out (see diagram )
*1 Not supplied for this unit. Ignition switch
To the automatic antenna if any (250 mA max.)
To the remote lead of other equipment (200 mA max.)
To metallic body or chassis of the car
To a live terminal in the fuse bloc connecting to the car battery
(bypassing the ignition switch) (constant 12 V)
To an accessory terminal in the fuse bloc
Blac
Blue with white stripe
Red
Yellow *2
Blue
Purple
Purple with blac stripeGreen
Green with blac stripe
GrayGray with blac stripe
White
White with blac
stripe
*2 Before chec ing the operation of this unit prior to
installation, this lead must be connected, otherwise
power cannot be turned on.
Right spea er (rear)Left spea er (rear)
Right spea er (front)Left spea er (front)
2
Fuse bloc
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