Inputs; Outputs; Connecting Information; Car Systems Connections - Sony XAV-7W Service Manual

Connection of separately available accessories
Items except the main unit and the connection box are optionally available.
Source selector
CONTROL(OUT)
XA-C30
OUTPUT VIDEO IN
CONTROL
INPUT
Connection box
(supplied)
Media Center
main unit
XAV INPUT1/2
DVX-100 or video
component
Tip
For connecting two or more CD/MD changers, the source selector XA-C30 (optional) is necessary.

3 Car Systems Connections

Refer also to the documentation for all other components in the system.
Also see "Connecting Information" on page 12.
• Components listed here except for supplied accessories are available separately. When connecting such
components, be sure to also refer to their documentation.
For specifications and other information on separately available components, contact your dealer.
Prevention of accidents caused by short-circuits
To prevent the risk of accidents caused by short-circuits, connect the power supply leads (red and yellow)
only after all other wiring has been completed, and only with the ignition key in the OFF position.
Otherwise, accidental short-circuiting can lead to electric shock and to serious damage.
When a fuse has blown, check the wiring and locate the cause of the problem before replacing the fuse.
When replacing the fuse, be sure to use only a fuse of the same rating (ampere rating). Using a different
fuse or bridging the contacts with wire is highly dangerous and can lead to serious damage.
Make sure to connect all of the following leads.
Otherwise there is a risk of electric shock, damage to the equipment, or malfunction.
• Connect light green lead to parking brake switch lead of car.
• Connect yellow lead to battery power supply of car.
• Connect red lead to accessory power supply of car.
• Connect black lead to metal point on car chassis.
* Do not to mix up the yellow and red leads, as this will cause the memory contents to be lost.
Observe the following precautions.
Otherwise there is a risk of electric shock, damage to the equipment, or malfunction.
• Cover unused connectors with electrician's tape to prevent accidental contact.
• Route FM/MW/LW aerial cable, bus cable, RCA interconnects, and power supply leads as far apart
from each other as possible, to prevent noise interference.
• Always grasp the connector and do not pull the cable when disconnecting the bus cable or other cables.
Otherwise the cable may become detached.
Notes on the control and power supply leads
• The power aerial control lead (blue) supplies +12 V DC while you select the radio reception or while
you activate the AF (Alternative Frequency), TA (Traffic announcement) function.
• When your car has built-in FM/MW/LW 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 speaker
with those of the left speaker.
• Do not connect the earth lead of this unit to the negative (–) terminal of the speakers.
• 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.
CONTROL(IN)
CD/MD changer
INPUT
CD/MD changer
Monitor
REAR MONITOR OUTPUT
11
13

Connecting Information

For details, see the section "3 Car Systems Connections" (next page).
Using the tap
Attach and fix the tap securely as illustrated.
Notes
• Be sure to connect the power input
cord after all other cords have been
connected.
Tap 5
• If the parking brake switch cord is too
thin, connect the parking cord to the
parking brake switch cord directly
without using the tap.
Connecting the parking cord
Be sure to connect the parking cord (Light green) to the parking
brake switch cord. The mounting position of the parking brake
switch cord depends on your car. Refer to the system connection
diagram below and consult your car dealer or your nearest Sony
dealer for further details.
Parking brake
warning light
Parking brake
switch cord
Hand brake type
12
Front speakers
(optional)
Amplifiers RCA interconnects
(optional) (optional)
Rear speakers
(optional)
RCA interconnects
(optional)
Active subwoofer
(optional)
Tap 5
Parking brake
switch lead of car
Light green (2 m)
A AMP REM
Max. supply current 0.3 A
Blue/white
Light blue
B ATT
1 3 5 7
C from the car's speaker connector
2 4 6 8
C from the car's speaker connector
1 Purple + Speaker, Rear, Right
2 – Speaker, Rear, Right
3 Grey + Speaker, Front, Right
4 – Speaker, Front, Right
5 White + Speaker, Front, Left
6 – Speaker, Front, Left
7 Green + Speaker, Rear, Left
8 – Speaker, Rear, Left
Negative polarity positions 2, 4, 6,
and 8 have striped cords.
5 7
D from the car's power connector
4 6 8
A To AMP REMOTE IN of an optional power amplifier
This connection is only for amplifiers. Connecting any other system may damage the unit.
B To the interface cable of a car telephone
Warning
If you have a power aerial without a relay box, connecting this unit with the supplied power
supply leads 2 may damage the aerial.
* Note for the aerial connecting
If your car aerial is an ISO (International Organization for Standardization) type, use
the supplied adaptor qh to connect it. First connect the car aerial to the supplied
adaptor qh, then connect it to the aerial jack of the main unit.
14
XAV-7W
Parking brake switch
cord
Parking cord
(Light green)
Battery power
Tap 5
Parking cord
(Light green)
Media Center
main unit
Parking brake switch
Body earth
Parking brake switch cord
Foot brake type
Parking brake switch cord
Connection
box 1
Main unit/
XAV
connection box
interconnect 3
Rotary
Commander
RM-X4S
(optional)
Media Center
main unit
Aerial adaptor qh
from car aerial*
Power supply leads 2
D from the car's power connector
4 Yellow continuous power supply
5 Blue power aerial control
6 Orange/ switched
White illumination power
supply
7 Red switched power supply
8 Black earth
Positions 1, 2, and 3 do not have pins.
Fuse
(10 A)
See "Power
connection diagram"
on next page for
details.
7