JVC Exad KD-AVX77 Instructions Manual page 79

ELECTRICAL CONNECTIONS
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.
• Be sure any cable is not caught on the car's chassis or under seats.
Typical connections
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
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.
Rear ground terminal
To an external component (see diagram )
* 6 Only for KD-AVX77.
* 4 Not included for this unit
* 5 • Before checking the operation of this unit prior
to installation, this lead must be connected,
otherwise power cannot be turned on.
• Do not connect the lead directly to the battery.
White with black stripe White
Left speaker (front)
A
Connecting to the steering wheel remote controller
If your car is equipped with the steering wheel remote controller, you can operate this unit using the
controller. For connection, an exclusive remote adapter (not supplied) which matches your car is
required. For details, consult the same car audio dealer as where the unit is purchased.
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?
USB cable (see diagram
15 A fuse
Black
5
Yellow *
Red
Blue with white stripe
Orange with white stripe
Brown
Light green
Gray with black stripe Gray
Right speaker (front)
PRECAUTIONS on power supply and speaker connections:
• DO NOT connect the speaker leads of the power cord to the car battery; otherwise, the
unit will be seriously damaged.
• BEFORE connecting the speaker leads of the power cord to the speakers, check the speaker wiring in
your car.
)
Fan
To metallic body or chassis of the car
To a live terminal in the fuse block connecting to the car battery
(bypassing the ignition switch) (constant 12 V)
To an accessory terminal in the fuse block
To the remote lead of other equipment or power
antenna if any (200 mA max.)
To car light control switch
To cellular phone system
To parking brake (see diagram
Green with black stripe Green
Left speaker (rear)
OE REMOTE
Steering wheel remote input
• Noise interfere with sounds.
* Is the rear ground terminal connected to the car's chassis using shorter and thicker cords?
• 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?
3
Ignition switch
Fuse block
)
Purple with black stripe Purple
Right speaker (rear)
OE remote adapter (not supplied)
Steering wheel remote controller
(equipped in the car)