Connections; Power Connections - Sony XM-S400D Operating Instructions Manual

4
Place the unit on the mounting board
and secure it with the supplied mounting
screws .


Connections

 Before making any connections, disconnect the
ground (earth) terminal of the car battery to avoid
short circuits.
 If your car is equipped with a computer system for
navigation or some other purpose, disconnecting
the ground (earth) wire from the car battery may
damage the computer memory. Leaving the
ground (earth) wire connected and disconnecting
the +12 V power supply wire until all the other
wires have been connected may prevent short
circuits.
 Be sure to use speakers with an adequate power
rating. If you use small capacity speakers, they
may be damaged.
 Do not connect the  terminal of the speaker
system to the car chassis, and do not connect the
 terminal of the right speaker with that of the
left speaker.
 Install the input and output cords away from the
power supply wire. Running them close together
may generate interference noise.
6
GB

Power Connections

 Connect the +12 V power supply wire only after all
the other wires have been connected and the

settings on this unit have been made.
 Be sure to connect the ground (earth) wire of the
unit securely to a metal point of the car. A loose
connection may cause a malfunction of the
amplifier.
 Be sure to connect the remote control wire of the
car audio unit to the remote input (REM) wire of
the supplied power connection cable.
 When using a car audio unit without a remote
output for the amplifier, connect the remote input
(REM) wire of the supplied power connection
cable to the accessory power supply.
 Use a power supply wire with a fuse (15 A)
attached.
 All power wires connected to the positive battery
post should be fused within 450 mm of the
battery post, and before they pass through any
metal.
 Make sure that the car's battery wires connected
to the car (ground (earth) to chassis) are of a wire
gauge at least equal to that of the main power
wire connected from the battery to the amplifier.
 During full-power operation, a current of more
than 15 A will run through the system. Therefore,
make sure that the wires to be connected to the
+12 V and GND wires of this unit are at least 14-
Gauge (AWG-14) or have a sectional area of more
than 2 mm².