Electrical Connections; Troubleshooting; Precautions On Power Supply And Speaker Connections - Jvc Kd-Lh917 Installation & Connection Manual

When using the optional stay /
Fire wall
Dashboard
Install the receiver at an angle of less than 30˚.
Caution when installing /

ELECTRICAL CONNECTIONS

To prevent short circuits, we recommend that you disconnect the battery's negative terminal and
make all electrical connections before installing the receiver.
• Be sure to ground this receiver 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 page
37 of the INSTRUCTIONS).
• 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
receiver.

PRECAUTIONS on power supply and speaker connections:

• DO NOT connect the speaker leads of the power cord to the car battery; otherwise,
the receiver will be seriously damaged.
• BEFORE connecting the speaker leads of the power cord to the speakers, check the speaker
wiring in your car.

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?
• Receiver becomes hot.
* Is the speaker output lead grounded?
* Are the "–" terminals of L and R speakers grounded in common?
• This receiver does not work at all.
* Have you reset your receiver?
When installing the receiver without using the sleeve /
In a Toyota for example, first remove the car radio and install the receiver in its place.
Stay (option)
Flat type screws (M5 x 8 mm)
3
*
Screw (option)
Note : When installing the receiver on the mounting bracket, make sure to use the 8 mm-long screws.
:
Fit the receiver into the mounting sleeve by using four corners of the trim plate.
• DO NOT press the panel (shaded in the illustration).
•
Heat sink
2
* 3
3
Bracket *
* 3
Pocket
Bracket
If longer screws are used, they could damage the receiver.
•
•
•
•
•
•
•
•
*
•
*
•
*
•
*
*
•
*
•
*
*
•
*
* 3 Not included for this receiver.
* 3
3
Flat type screws (M5 x 8 mm) *
* 3
* 3
4 Ω
* 3
8 Ω