Sony MEX-BT2750 Installation

4-125-799-51(1)
Bluetooth
®
Audio System
Installation/Connections
MEX-BT2750
©2009 Sony Corporation Printed in Thailand
  
× 2
   
× 4
Equipment used in illustrations (not supplied)
Front speaker Power amplifier
Rear speaker CD changer
Active subwoofer Rotary commander RM-X4S
A
FRONT AUDIO OUT
REAR AUDIO OUT
FRONT AUDIO OUT
SUB AUDIO OUT
B
BUS AUDIO IN
BUS CONTROL IN
Cautions Connection example
Notes (-A)
Be sure to install this unit in the dashboard of the car
• Be sure to connect the ground (earth) lead before connecting
as the rear side of the unit becomes hot during use. the amplifier.
• The alarm will only sound if the built-in amplifier is used.
• This unit is designed for negative ground (earth) 12 V
Tip (-B)
DC operation only.
When connecting only a single CD changer or other optional
• Do not get the leads under a screw, or caught in moving device, connect directly to this unit.
parts (e.g. seat railing).
• Before making connections, turn the car ignition off to
Connection diagram
avoid short circuits.
• Connect the yellow and red power input leads only
after all other leads have been connected.
 To a metal surface of the car
• Run all ground (earth) leads to a common
First connect the black ground (earth) lead, then connect the
ground (earth) point.
yellow and red power supply leads.
• Be sure to insulate any loose unconnected leads with
 To the power antenna (aerial) control lead or
electrical tape for safety.
power supply lead of antenna (aerial) booster
• Do not cover the ventilation slots or heat sinks of the
Notes
unit.
• It is not necessary to connect this lead if there is no power
antenna (aerial) or antenna (aerial) booster, or with a
Notes on the power supply lead (yellow)
manually-operated telescopic antenna (aerial).
• When connecting this unit in combination with other
• When your car has a built-in FM/MW/SW antenna (aerial)
stereo components, the connected car circuit's rating in the rear/side glass, see "Notes on the control and power
must be higher than the sum of each component's fuse. supply leads."
 To AMP REMOTE IN of an optional power
• When no car circuits are rated high enough, connect
the unit directly to the battery. amplifier
This connection is only for amplifiers. Connecting any other
system may damage the unit.
 To the interface cable of a car telephone
Parts Iist
 To the +12 V power terminal which is
energized in the accessory position of the
• The numbers in the list are keyed to those in the
ignition key switch
instructions.
Notes
• The bracket  and the protection collar  are
• If there is no accessory position, connect to the +12 V
attached to the unit before shipping. Before mounting
power (battery) terminal which is energized at all times.
the unit, use the release keys  to remove the bracket
Be sure to connect the black ground (earth) lead to a
 from the unit. For details, see "Removing the metal surface of the car first.
• When your car has a built-in FM/MW/SW antenna (aerial)
protection collar and the bracket ()" on the reverse
in the rear/side glass, see "Notes on the control and power
side of the sheet.
supply leads."
• Keep the release keys  for future use as they
 To the +12 V power terminal which is
are also necessary if you remove the unit from
energized at all times
your car.
Be sure to connect the black ground (earth) lead to a metal
surface of the car first.
Caution
Notes on the control and power supply leads
Handle the bracket  carefully to avoid injuring your
• The power antenna (aerial) control lead (blue) supplies +12 V
fingers.
DC when you turn on the tuner.
• When your car has built-in FM/MW/SW antenna (aerial) in the
rear/side glass, connect the power antenna (aerial) control
lead (blue) or the accessory power input lead (red) to the
power terminal of the existing antenna (aerial) booster. For
details, consult your dealer.
• A power antenna (aerial) without a relay box cannot be used
with this unit.
 Memory hold connection
When the yellow power input lead is connected, power will
Catch always be supplied to the memory circuit even when the ignition
switch is turned off.
Note
Before installing, make sure that the catches on both sides of
the bracket  are bent inwards 2 mm. If the catches are straight
or bent outwards, the unit will not be installed securely and may
spring out.
* 1
* 1
BUS AUDIO IN
BUS REAR/SUB FRONT
IN AUDIO OUT
from car antenna (aerial)
REAR / SUB
* 2
AUDIO OUT
Blue/white striped
AMP REM
3
Max. supply current 0.3 A
White
Left
White/black striped
Grey
Right
Grey/black striped
Green
Left
Green/black striped
Purple
Right
Purple/black striped
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 ground (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 leads
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 leads to each other.
Note on connection
If speaker and amplifier are not connected correctly, "FAILURE"
appears in the display. In this case, make sure the speaker and
amplifier are connected correctly.
* 1 RCA pin cord (not supplied)
* 2 AUDIO OUT can be switched SUB or
REAR. For details, see the supplied
Operating Instructions.
* 3 Insert with the cord upwards.
Supplied with the CD changer
FRONT
REMOTE
AUDIO OUT
IN
* 3
L
R
BUS
Fuse (10 A)
CONTROL IN

Black
Blue
ANT REM
Max. supply current 0.1 A
Light blue
ATT
Red
Yellow
1
2
4
5
6