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 specifi ed 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 21 of the INSTRUCTIONS).
•To prevent
• The heat sink becomes very hot after use. Be careful not to touch it when removing this receiver.
Heat sink
A Typical connections
Before connecting: Check the wiring in the vehicle carefully. Incorrect connection may cause serious damage to this receiver.
The leads of the power cord and those of the connector from the car body may be different in color.
1Connect the colored leads of the power cord in the order specifi ed in the illustration below.
2Connect the antenna cord.
3Finally connect the wiring harness to the receiver.
SUBWOOFER (see diagram 
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Rear ground |
terminal |
Line out (see diagram 
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To CD changer or another external component (see diagram 
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15 A fuse
Black
Yellow*2
Red
Blue
*1 Not included for this receiver
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
Ignition switch
Fuse block
*2 Before checking the operation of this receiver |
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| To the automatic antenna if any (250 mA max.) |
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prior to installation, this lead must be connected, | Blue with white stripe | ||||||||
otherwise power cannot be turned on. |
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| To the remote lead of other equipment (200 mA max.) | ||||||
| Orange with white stripe |
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| To car light control switch | ||
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| Brown | ||||||||
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| To cellular phone system | ||
White with black stripe | White | Gray with black stripe | Gray | Green with black stripe | Green | Purple with black stripe | Purple |
| Left speaker (front) | Right speaker (front) | Left speaker (rear) | Right speaker (rear) | |||
B Connecting the external amplifiers
You can connect amplifi ers 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 receiver.
•For amplifier only:
–Disconnect the speakers from this receiver, connect them to the amplifier. Leave the speaker leads of this receiver unused.
–The line output level of this receiver is kept high to maintain the
When connecting an external amplifi er to this receiver, turn down the gain control on the external amplifi er to obtain the best performance from this receiver.
Rear speakers
JVC Amplifier
Front speakers
JVC Amplifier
Remote lead
To the remote lead of other equipment or automatic antenna if any
Remote lead (Blue with white stripe)
JVC Amplifier
Subwoofer
Front speakers
*3 Firmly attach the ground wire to the metallic body or to the chassis of the
*4 Signal cord (not supplied for this receiver)
C Connecting other external components
CD changer
• Set “EXTERNAL IN” to “CHANGER” (See page 21 of the INSTRUCTIONS.)
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| *5 Connecting cord supplied for |
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| your CD changer |
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| CAUTION |
JVC CD changer |
| • Before connecting the CD |
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| changer, make sure that the |
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| receiver is turned off. |
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External component
•Set “EXTERNAL IN” to “EXTERNAL IN” (See page 21 of the INSTRUCTIONS.)
KS-U57*6
External
component
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| *6 | Line Input Adapter |
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CD changer jack |
| for this receiver) | |
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