Read Sony XAV-77 Service Manual online
8
XAV-77
14
3
Car Systems Connections
Refer also to the documentation for all other components in the system.
Also see “Connecting Information” on page 13.
• Components listed here except for supplied accessories are available separately. When connecting such
• 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.
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.
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.
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 mix up the yellow and red leads, as this will cause the memory contents to be lost.
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 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/AM antenna cable, bus cable, RCA interconnects, and power supply leads as far apart from
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/AM antenna 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.
Note
Install the TV antennas away from the FM/AM antenna.
Install the TV antennas away from the FM/AM antenna.
Notes on the control and power supply leads
• The power antenna control lead (blue) supplies +12 V DC when turn on the tuner.
• When your car has built-in FM/AM antenna in the rear/side glass, connect the power antenna control
• The power antenna control lead (blue) supplies +12 V DC when turn on the tuner.
• When your car has built-in FM/AM antenna in the rear/side glass, connect the power antenna control
lead (blue) or the accessory power input lead (red) to the power terminal of the existing antenna
booster. For details, consult your dealer.
booster. For details, consult your dealer.
• A power antenna 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.
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
• 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 ground 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
• 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.
15
INPUT
CONTROL
XAV
To the +12 V power terminal which is
energized at all times
energized at all times
*2
*
1Be sure to connect the black ground lead to it first.
*
2First connect the black ground lead, then connect the orange/white striped, yellow and red power input
leads.
*
3When your car has built-in FM/AM antenna in the rear/side glass, see “Notes on the control and power
supply leads” (previous page).
*
4This connection is only for amplifiers. Connecting any other system may damage the unit.
*
5It is not necessary to connect this lead if there is no power antenna or antenna booster, or with a manually-
operated telescopic antenna.
Note on the accessory power input lead (red)
If there is no accessory position, connect to the +12 V power (battery) terminal which is energized at all times.
If there is no accessory position, connect to the +12 V power (battery) terminal which is energized at all times.
Bus cable (supplied with TV tuner unit)
TV tuner unit
(optional)
(optional)
Connection
box 1
box 1
Main unit/
connection box
interconnect 3
connection box
interconnect 3
Front speakers
(optional)
(optional)
Rear speakers
(optional)
(optional)
Active subwoofer
(optional)
(optional)
Media Center
main unit
main unit
Power
supply leads
2
supply leads
2
(for main
unit)
Yellow (0.25 m)
Red (0.25 m)
Orange/white (0.25 m)
Light blue (0.25 m)
Fuse (10 A)
Light green (2 m)
Parking brake switch lead of car
Tap 5
To the +12 V power terminal which is
energized in the accessory position of
the ignition key switch
energized in the accessory position of
the ignition key switch
*2*3
To a car’s illumination signal
*2
To ATT (the interface cable of a car
telephone)
telephone)
To a metal surface of the car
*1
Blue/white (0.25 m)
Blue (0.25 m)
To AMP REMOTE IN of an optional
power amplifier
power amplifier
*4
To the power antenna control lead or
power supply lead of antenna booster
amplifier
power supply lead of antenna booster
amplifier
*3*5
Rotary
Commander
RM-X4S
(optional)
Commander
RM-X4S
(optional)
Front speakers
(optional)
(optional)
Rear speakers
(optional)
(optional)
White
White/black
Gray
Gray/black
Green
Green/black
Purple
Purple/black
RCA interconnects
(optional)
(optional)
RCA interconnects
(optional)
(optional)
RCA interconnects
(optional)
(optional)
Left
Right
Left
Right
From car
antenna
antenna
Black (0.45 m)
Max. supply current 0.3 A
Max. supply current 0.1 A
Amplifiers
(optional)
(optional)
RCA interconnects
(supplied with TV
tuner unit)
(supplied with TV
tuner unit)
16
Note
To avoid the possibility of damage, you
should not use a needle or push the
button too strongly.
To avoid the possibility of damage, you
should not use a needle or push the
button too strongly.
4
After Installation and Connections
1
Start the car’s engine.
2
Verify that the brake lights, other lights, horn, turn
indicators, and all other electrical parts operate
normally.
indicators, and all other electrical parts operate
normally.
3
Use a ball-point pen or similar to push the Reset
button on the unit.
When you press the Reset button, the system becomes
operative.
operative.
Reset button
Warning when installing in a car without ACC
(accessory) position on the ignition key switch
(accessory) position on the ignition key switch
Be sure to hold down OFF on the unit to turn off the clock
display after turning off the engine.
When you press OFF only momentarily, the clock display does
not turn off and this causes battery wear.
display after turning off the engine.
When you press OFF only momentarily, the clock display does
not turn off and this causes battery wear.
17
B
B
A
1
Pull the lower side of the front
panel plate forward (arrow A), to
open a gap between the front panel
plate and the body of the unit.
panel plate forward (arrow A), to
open a gap between the front panel
plate and the body of the unit.
2
Insert a coin or similar thin item in
this gap, and twist to remove the
front panel plate.
this gap, and twist to remove the
front panel plate.
Be careful not to damage the unit.
Remove in the order left-to-right.
Remove in the order left-to-right.
3
Spreading the lower side of the
front panel plate outward (arrow
B
front panel plate outward (arrow
B
), detach the plate from the body.
Removing the Front Panel Plate
Front panel plate 4
Be careful not to pull off the plastic parts.
Insert a coin and twist to remove
the front panel plate.
the front panel plate.
To remove the front panel plate from the unit, use the following procedure.
Note
Be careful not to pull off the plastic parts
attached to the lower side of the unit
together with the front panel plate.
Be careful not to pull off the plastic parts
attached to the lower side of the unit
together with the front panel plate.
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