Operating Instructions

21GB
Mass:
Approx. 2.6 kg (5 lb 12 oz) not incl. accessories
Package contents:
Main unit (1)
Mounting screws (4)
High level input cord (1)
RCA input cord (1)
Speaker output cord (1)
Protection cap (1)
Your dealer may not handle some of the above
l
isted accessories. Please ask the dealer for detailed
information.
Design and specifications are subject to change
w
ithout notice.
The Bluetooth® word mark and logos are registered
t
rademarks owned by the Bluetooth SIG, Inc. and
any use of such marks by Sony Corporation is under
license. Other trademarks and trade names are
those of their respective owners.
Apple, iPhone, iPod, and iPod touch are trademarks
of
Apple Inc., registered in the U.S. and other
countries.
Google, Google Play and Android are trademarks of
Go
ogle LLC.
Troubleshooting
The following checklist will assist in the correction
of most problems which you may encounter with
your unit. Before going through the checklist below,
refer to the connection and operating procedures.
The POWER/PROTECTOR indicator does not light
up.
 The fuse is blown.
– Replace the fuse with a new one.
 T
he ground (earth) wire is not securely
connected.
– Fasten the ground (earth) wire securely to a
m
etal point of the car.
 T
he voltage going into the remote input (REM)
terminal is too low.
– Turn on the car audio unit if it is not turned on.
– Use a relay if the system employs too many
a
mplifiers.
 Chec
k the battery voltage (10.5 V – 16 V).
The POWER/PROTECTOR indicator flashes
quickly.
 Turn off the power switch. The speaker outputs
have shorted.
– Rectify the cause of the short.
 T
urn off the power switch. Make sure the speaker
cord and ground (earth) wire are securely
connected.
The POWER/PROTECTOR indicator flashes slowly
(once every second).
 The thermal protector has activated, and the
speaker outputs will be decreased.
– Make sure the impedance of connected
s
peakers is appropriate.
The unit becomes abnormally hot.
 The unit heats up abnormally.
– Use speakers with suitable impedance: 
2 Ω – 8 Ω (stereo), 4 Ω – 8 Ω (when used as a
bri
dging amplifier).
 M
ake sure to place the unit in a well ventilated
location.
Alternator noise is heard.
 The power connecting wires are installed too
close to the RCA pin cords.
– Keep the wires away from the cords.
 T
he ground (earth) wire is not securely
connected.
– Fasten the ground (earth) wire securely to a
m
etal point of the car.
 Nega
tive speaker wires are touching the car
chassis.
– Keep the wires away from the car chassis.
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