XR-CA640X — Sony Car Audio Service Manual (repair manual). Page 4

View Sony XR-CA640X Service Manual online

4
XR-CA640X
Cautions
This unit is designed for negative earth 12 V
DC operation only.
• Do not get the wires under a screw, or caught
in moving parts (e.g. seat railing).
• Before making connections, turn the car
ignition off to avoid short circuits.
• Connect the 
yellow
 and 
red
 power input leads
only after all other leads have been connected.
Run all earth wires to a common earth
point.
• Be sure to insulate any loose unconnected
wires with electrical tape for safety.
Notes on the power supply cord (yellow)
• When connecting this unit in combination with
other stereo components, the connected car
circuit’s rating must be higher than the sum of
each component’s fuse.
• When no car circuits are rated high enough,
connect the unit directly to the battery.
Parts Iist (
1
)
The numbers in the list are keyed to those in the
instructions.
Caution
Handle the bracket 1 carefully to avoid injuring
your fingers.
Connection example (
2
)
Notes (
2
-A)
• Be sure to connect the earth cord before
connecting the amplifier.
• If you connect an optional power amplifier and do
not use the built-in amplifier, the beep sound will
be deactivated.
Tip (
2
-B-
)
For connecting two or more CD/MD changers, the
source selector XA-C30 (optional) is necessary.
Connection diagram (
)
1
To a metal surface of the car
First connect the black earth lead, then connect
the yellow and red power input leads.
2
To the power aerial control lead or power
supply lead of aerial booster amplifier
Notes
• It is not necessary to connect this lead if there is
no power aerial or aerial booster, or with a
manually-operated telescopic aerial.
• When your car has a built-in FM/MW/SW aerial
in the rear/side glass, see “Notes on the control
and power supply leads.”
3
To AMP REMOTE IN of an optional power
amplifier
This connection is only for amplifiers. Connecting
any other system may damage the unit.
4
To the interface cable of a car telephone
5
To the +12 V power terminal which is energised
in the accessory position of the ignition key
switch
Notes
• If there is no accessory position, connect to the
+12 V power (battery) terminal which is
energised at all times.
Be sure to connect the black earth lead to it first.
• When your car has a built-in FM/MW/SW aerial
in the rear/side glass, see “Notes on the control
and power supply leads.”
6
To the +12 V power terminal which is energised
at all times
Be sure to connect the black earth lead to it first.
Notes on the control and power supply leads
• The power aerial control lead (blue) supplies +12 V
DC when you turn on the tuner.
• When your car has built-in FM/MW/SW aerial in the
rear/side glass, connect the power aerial control
lead (blue) or the accessory power input lead (red)
to the power terminal of the existing aerial booster.
For details, consult your dealer.
• A power aerial without relay box cannot be used
with this unit.
Memory hold connection
When the yellow power input lead is connected,
power will always be supplied to the memory circuit
even when the ignition key is turned off.
Notes on speaker connection
• Before connecting the speakers, turn the unit off.
• Use speakers with an impedance of 4 to 8 ohms, and
with adequate power handling capacities to avoid
its damage.
• Do not connect the speaker terminals to the car
chassis, or connect the terminals of the right
speakers with those of the left speaker.
• Do not connect the earth lead of this unit to the
negative (–) terminal of the speaker.
• Do not attempt to connect the speakers in parallel.
• Connect only passive speakers. Connecting active
speakers (with built-in amplifiers) to the speaker
terminals may damage the unit.
• To avoid a malfunction, do not use the built-in
speaker wires installed in your car if the unit shares
a common negative (–) lead for the right and left
speakers.
• Do not connect the unit’s speaker cords to each
other.
2
B
BUS AUDIO IN
BUS CONTROL IN
BUS CONTROL IN
BUS AUDIO IN
A
AUDIO OUT REAR
Source selector
Selector de fuente
*
*
not supplied
no suministrado
AUDIO OUT FRONT
3
Page of 42
Display

Click on the first or last page to see other XR-CA640X service manuals if exist.