CDX-GT920U - Sony Car Audio Service Manual (repair manual). Page 7

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CDX-GT920U
7
AUDIO OUT
REAR
R
AUDIO
OUT
REAR
AUDIO
OUT
FRONT
BUS
AUDIO
IN
AUDIO OUT
FRONT
BUS AUDIO IN
BUS
CONTROL IN
REMOTE
IN
SUB OUT (MONO)
L
from car antenna (aerial)
desde la antena del automóvil 
AMP REM
Max. supply current 0.3 A
Corriente máx. de alimentación de 0,3 A
Fuse (10 A)
Fusible (10 A)
Blue/white striped
Con rayas azules y blancas
Red
Rojo
Yellow
Amarillo
White
Blanco
Green
Verde
Purple
Morado
White/black striped
Con rayas blancas y negras
Gray/black striped
Con rayas grises y negras
Green/black striped
Con rayas verdes y negras
Gray
Gris
Left
Izquierdo
Right
Derecho
Left
Izquierdo
Right
Derecho
ANT REM
Black
Negro
Blue
Azul
Max. supply current 0.1 A
Corriente máx. de alimentación de 0,1 A
Purple/black striped
Con rayas moradas y negras
Source selector
(not supplied)
Selector de fuente
(no suministrado)
XA-C40
Supplied with the CD/MD changer
Suministrado con el cambiador de CD/MD
*
1
Orange/white striped
Con rayas naranjas y blancas
Light blue
Azul celeste
ATT
ILLUMINATION
*
1
*
1
RCA pin cord (not supplied)
*
2
Supplied with XA-C40
*
3
Insert with the cord upwards.
*
1
Cable con terminales RCA 
(no suministrado)
*
2
Suministrado con el XA-C40
*
3
Insertar con el cable hacia arriba.
*
3
*
2
*
2
Connection diagram
 To a metal surface of the car
First connect the black ground (earth) lead, then connect the 
yellow and red power supply leads.
 To the power antenna (aerial) control lead or 
power supply lead of antenna (aerial) booster 
Notes
• It is not necessary to connect this lead if there is no power
antenna (aerial) or antenna (aerial) booster, or with a 
manually-operated telescopic antenna (aerial).
• When your car has a built-in FM/AM antenna (aerial) in 
the rear/side glass, see “Notes on the control and power
supply leads.”
 To AMP REMOTE IN of an optional power
amplifier
This connection is only for amplifiers. Connecting any other 
system may damage the unit.
 To the interface cable of a car telephone
 To a car’s illumination signal
Be sure to connect the black ground (earth) lead to a metal 
surface of the car first.
 To the +12 V power terminal which is 
energized in the accessory position of the 
ignition switch
Notes
• If there is no accessory position, connect to the +12 V
power (battery) terminal which is energized at all times.
Be sure to connect the black ground (earth) lead to a 
metal surface of the car first.
• When your car has a built-in FM/AM antenna (aerial) in 
the rear/side glass, see “Notes on the control and power
supply leads.”
 To the +12 V power terminal which is 
energized at all times
Be sure to connect the black ground (earth) lead to a metal 
surface of the car first.
Notes on the control and power supply leads
• The power antenna (aerial) control lead (blue) supplies +12 V
DC when you turn on the tuner.
• When your car has built-in FM/AM antenna (aerial) in the rear/
side glass, connect the power antenna (aerial) control lead 
(blue) or the accessory power supply 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 supply lead is connected, power will 
always be supplied to the memory circuit even when the ignition 
switch 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 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.
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