XAV-612BT - Sony Car Audio Service Manual (repair manual). Page 9

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XAV-612BT
9
(E (PAL), Indian and Australian models)
English
Run all ground (earth) leads to a common gr ound 
(earth) point.
This unit is designed f or negative ground (earth) 12 V 
DC operation only.
Do not disas semble or modify the unit.
Do not install in locations which interfere with airbag 
operation.
Do not get the leads under a scr ew, or caught in 
moving parts (e .g. seat railing).
Before making c onnections, turn the car ignition off 
to avoid shor t circuits.
Connect the yellow and  red power supply leads 
only after all other leads have been c onnected.
Be sur e to insulate any loose unc onnected leads 
with electrical tape f or saf ety.
Do not press on the LCD when installing the unit.
Install the unit with the monitor facing straight 
forward; do not install it at a slanted angle .
Notes on the power supply lead (yellow)
When c onnecting this unit in combination with other 
stereo components,  the amper age  rating of the car 
circuit to which the unit is connected must be higher 
than the sum of each c omponent's fuse amper age 
rating.
If no car circuits are rated high enough,  connect the 
unit directly to the battery.
Connection diagram   
To a common gr ound (earth) point
First connect the black gr ound (earth) lead,  then connect the 
yellow and  red power supply leads.
To the power antenna (aerial) c ontrol lead or 
the power supply lead of the antenna (aerial) 
booster
Notes
It is not necessar y to connect this lead if there is no power 
antenna (aerial) or antenna (aerial) booste r, or with a 
manually-oper ated telescopic antenna (aerial).
If your car has a built -in FM/AM antenna (aerial) in the r ear/
side glas s, see “Notes on the c ontrol and power supply leads. ”
To AMP REMO TE IN of an optional power 
amplifier
This connection is only for amplifiers.  Connecting any other 
system may damage the unit.
To a car’s illumination signal
Be sur e to first connect the black gr ound (earth) lead to a 
common gr ound (earth) point.
To the +12 V power terminal which is 
energized when the ignition switch is set to  
the accessory position
Notes
If there is no a ccessory position, connect to the +12 V power 
(battery) terminal which is ener gized at all times.  
Be sur e to first connect the black gr ound (earth) lead to a 
common gr ound (earth) point.
If your car has a built -in FM/AM antenna (aerial) in the r ear/
side glas s, see “Notes on the c ontrol and power supply leads. ”
To the +12 V power terminal which is 
energized at all times
Be sur e to first connect the black gr ound (earth) lead to a 
common gr ound (earth) point.
To the parking brake switch cord
The mounting position of the parking br ake switch  cord depends 
on your car. For details, see “Connecting the parking brake lead 
(
)” on the reverse side .
To an auxiliary device such as a por table 
media player, game c onsole, etc. (not 
supplied)
Tip
You can use an RCA pin  cord (not supplied) to connect auxiliary 
devices.
To the +12 V power terminal of the car’s rear 
lamp lead (only when c onnecting the rear 
view camera)
Notes on the control and power supply leads
REM OUT lead (blue/white striped) supplies +12 V DC when you turn 
on the unit.
If your car has built-in FM/AM antenna (aerial) in the r ear/side 
glass, connect REM OUT lead (blue/white striped) or the a ccessory 
power supply lead (r ed) to the power terminal of the e xisting 
antenna (aerial) booste r. For details, consult your dealer.
A power antenna (aerial) without a r elay box cannot be used with 
this unit.
Memor y hold connection
When the yellow power supply lead is c onnected, power will always 
be supplied to the memor y circuit even when the ignition switch is 
turned off .
Notes on speak er connection
Before connecting the speak ers, turn the unit off.
Use speak ers with an impedanc e of 4 to 8 ohms,  and with 
adequate power handling c apacities to avoid damage .
Do not connect the speak er terminals to the c ar chas sis, or connect 
the terminals of the right speak ers with those of the left speak ers.
Do not connect the ground (earth) lead of this unit to the negative 
(–) terminal of a speak er.
Do not attempt to connect the speak ers in parallel.
Connect only pas sive speak ers. Connecting active speak ers (with 
built-in amplifiers) to the speak er terminals may damage the unit.
To avoid a malfunction,  do not use the built-in speak er leads 
installed in your car if they feature a c ommon negative (–) lead f or 
the right and left speak ers.
Do not connect the unit’s speak er leads to each other .
Notes on connection
If [Check Audio Output Wiring] appears in the display , mak e sure 
the speak er and amplifier ar e connected correctly.
To use the monitor f or the rear seats,  connect the parking brake 
switch cord to the ground (earth).
Securing the connection of the 
HDMI/MHL c onnection cable 
Secure the connection between the HDMI/MHL 
connection cable and main unit,  using the hook and 
loop fastener 
.
1
Wrap the hook and loop f astener 
 around the 
neck of a cable.
2
Pull the hook and loop fastener 
 firmly back 
around the neck of the other cable.
3
Bring the ends of the hook and loop f astener 
together to secure the connection of the cables.
Cautions
*
1
For details on installing the microphone, see 
“Installing the microphone  (
)” on the reverse 
side.
*
2
RCA pin cord (not supplied)
*
3
HDMI connection cable or MHL c onnection cable 
(supplied)
*
4
The sound is output fr om this terminal only when 
ZONE × ZONE is activated. This terminal outputs a 
fixed level regardless of the volume c ontrol of the 
unit.
*
5
A separ ate adaptor may be  required.
*
6
The USB rear cable labeled “HIGH CHARGE”  is 
recommended to use f or recharging the battery 
of a connected device.
*
7
To connect a smartphone to the main unit,  an 
appropriate cable (not supplied) is  required.
*
8
GPS module f or AV Center (XA-NV300T) (not 
supplied). Australia models only .
*
10
The HDMI in/MHL in port
*
11
Speak er impedanc e:  4 – 8 ohms ×  4
Equipment used in illustrations (not supplied)
Subwoofer
Rear speak er
Rear view c amera
Monitor
Power amplifier
Front speaker
Fuse (10 A)
HIGH CHARGE
From car antenna (aerial) 
*
2
REM OUT
Max. supply current: 0.4 A
ILLUMINATION
Left
Right
Left
Right
Blue/white striped
White
Green
Purple
White/black striped
Gray/black striped
Green/black striped
Gray
Purple/black striped
Black
Orange/white striped
PARKING BRAKE
Red
Yellow
Light green
*
1
*
2
*
6
*
10
*
3
*
2
*
2
Smartphone
Smartphone*
7
, USB device, GPS 
module*
8
*
2
*
2
GND
ACC
BATTERY
 or 
*
11
*
1
HDMI connection cable or MHL c onnection cable (supplied)
*
1
 or 
Smartphone
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