Sony WX-850BT, Service Manual

Page: 18 / 62

WX-850BT/900BT/900BTM
18
(AEP and UK models)
Cautions
Run all ground (earth) leads to a common
ground (earth) point.
Do not get the leads trapped 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 power supply lead
to the unit and
speakers before connecting it to the auxiliary
power connector.
Be sure to insulate any loose unconnected leads
with electrical tape for safety.
Choose the installation location carefully so that
the unit will not interfere with normal driving
operations.
Avoid installing the unit in areas subject to dust,
dirt, excessive vibration, or high temperature,
such as in direct sunlight or near heater ducts.
Use only the supplied mounting hardware for a
safe and secure installation.
Note on the power supply lead (yellow)
When connecting this unit in combination with other
stereo components, the amperage rating of the car
circuit to which the unit is connected must be higher
than the sum of each component’s fuse amperage
rating.
Mounting angle adjustment
Adjust the mounting angle to less than 45°.
Connection/Installation
Precautions
Connection
*1 Not supplied
*2 Speaker impedance: 4 – 8 Ω × 4
*3 RCA pin cord (not supplied)
*4 Depending on the type of car, use an adaptor for a
wired remote control (not supplied).
*5 Depending on the type of car, use an adaptor (not
supplied) if the antenna (aerial) connector does not
fit.
*6 Whether in use or not, route the microphone input
cord such that it does not interfere with driving
operations. Secure the cord with a clamp, etc., if it is
installed around your feet.
*7 For details on installing the microphone, see
“Installing the microphone”.
from a wired remote control
(not supplied)*
4
See “Power connection diagram”
for details.
from a car antenna (aerial)*
5
*
3
*
3
Subwoofer* 1
Power amplifier* 1
* 2
For details, see “Making
connections”.
* 3
* 6 * 7
If you have a power antenna (aerial) without a relay
box, connecting this unit with the supplied power
supply lead
may damage the antenna (aerial).
To the car’s speaker connector
To the car’s power connector
Subwoofer Easy Connection
You can use a subwoofer without a power amplifier
when it is connected to a rear speaker cord.
Notes
Preparation of the rear speaker cords is required.
Use a subwoofer with an impedance of 4 to 8 ohms,
and with adequate power handling capacities to
avoid damage.
Memory hold connection
When the yellow power supply lead is connected,
power will always be supplied to the memory
circuit even when the ignition switch is turned off.
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 damage.
Make sure your car’s auxiliary power connector, and
match the connections of cords correctly
depending on the car.
Common connection
When the positions of the red and yellow
leads are inverted
Making connections
1
Rear speaker
(right)
Purple
2
Purple/black
striped
3
Front speaker
(right)
Gray
4
Gray/black striped
5
Front speaker
(left)
White
6
White/black
striped
7
Rear speaker
(left)
Green
8
Green/black
striped
12
continuous power
supply
Yellow
13
power antenna (aerial) /
power amplifier control
(REM OUT)
Blue/white striped
14
switched illumination
power supply Orange/white
striped
Red switched power suppl 15
16 ground (earth) Black
Front speaker
Subwoofer
Power connection diagram
12
continuous power
supply
Yellow
Red switched power supply 15
Yellow switched power supply 12
15
continuous power
supply
Red
Auxiliary power connector
Red Red
Yellow Yellow
Red Red
Yellow Yellow
When the car without ACC position
After matching the connections and switching
power supply leads correctly, connect the unit to
the car’s power supply. If you have any questions
and problems connecting your unit that are not
covered in this manual, consult the car dealer.
Red Red
Yellow Yellow