Sony XM-3040 User manual

S
O
N
Y
3-750-928-21
(2)
Stereo Power Amplifier
XM-3040
Operating Instructions _ page2
Before operating the unit, please read this manual
thoroughly and retain it for future reference.
Mode d’emploi page 12
Avant la mise en service de l'appareil, lire attentivement
ce mode d'emploi et le conserver pour toute référence
ultérieure,
©1989 by Sony Corporation Printed in Japan

engusn
Features mee ots
PrECAUHODS: cxrcesises std onedboeds iaesae sy
InStallatione o.oo renee oh ie ea ee 4
CONNECTIONS ooo oie ceeceeceecceeeseeesceeseersseees 5
Connection of a 4-speaker system .... 6
Connection of a 3-speaker system .... 7
Connection of a 2-speaker system .... 8
Level adjustment control .......0... 9
Specifications oo... 10
Owner’s Record
The model and serial numbers are located on
the bottom. Record the serial number in the
space provided below. Refer to them whenever
you Call upon your Sony dealer regarding this
product. ,
Model No. XM-3040 Serial No.
Features
e Maximum power output of 58 watts pel
channel
¢ Power output of 30 watts per channel
(20-20.000 Hz. 0.08°o. 4 ohms) Ad Hoc
Committee standard
e Wide dynamic range and low distortion (less
than 0.005%)
e Equipped with a chemical capacitor (with a
capacity of 20.000 uF) for powerful
reproduction of lower frequencies.
e Aremote power system automatically
switches the amplifier on when a connected
car stereo is turned on.
e A protection circuit is provided.
¢ Pulse power supply” for stable, regulated
output power
e You can install the XM-3040 easily only with
the supplied screws.
* Pulse power supply
This amplifier employs puise techniques in its power
supply section. The use of this original light-weight
power supply system provides a high-voltage, a high-
efficiency power supply. That is highly regulated
under variations in the automobile's electrical
voltage.

ers unitis desianed for neaative around fo 4
DC aperation only
e The nameplate indicating operatina valtage
ete is located on the bottam exterior
«¢ Use speakers with an impedance of 2 to 8
ohms.
« Avoid installing the unit where
-- {t would be subject to high temperatures.
such as from direct sunlight or from hot air
from the heater.
— It would be exposed to rain or moisture.
— It would be subject to dust or dirt.
¢ If your car is parked in direct sunlight and
there is a considerable rise in temperature
inside the car, allow the unit to cool off before
operating.
« When installing the unit vertically, make sure
that the fins of the heat sink are vertical to the
floor.
x Not this way O This way
« When installing the unit horizontally, be sure
not to cover the fins with the floor carpet and
so on.
e If this unit is placed too close to the car radio,
an interference may occur. In this case,
separate the amplifier from the car radio.
« If no power is being supplied to the cassette
player or tuner, check the connections.
« This power amplifier employs a protection
circuit* to protect the transistors and speakers
if the amplifier malfunctions. Do not attempt to
test the protection circuits by covering the
heat sink or connecting improper toads.
If you have any question or problem concerning
your unit that is not covered in this manual,
please consult your nearest Sony dealer.
Fuse Replacement
it the fuse blows. check the power connection
and replace the fuse. !f the fuse blows again
atter replacement. there may be an internal
malfunction. In this case. consult your nearest
Sony dealer
Warning
Use the specified ampere fuse.
Use of a higher amperage fuse may cause
serious damage.
* Protection circuit
This amplifier is provided with a protection circuit which
operates in the following cases:
¢ the unit is overheated
e a DC current is generated
e the speaker terminals are short circuited
When a protection circuit activates, the red indicator
lights up and there will be an abrupt loss of sound from
the speakers. If this happens, turn off the connected
equipment and take out the cassette tape or disc and
determine the cause of the maifunction. If the amplifier
has overheated, wait until the unit cools off.
PROTECTOR
indicator (red)
}
ae

Installation -
Before Installation
« Choose the mounting location carefully so that the unit will not interfere with the normal driving
functions of the driver and that the unit will not be exposed to direct sunlight or hot air from the
heater.
¢ Do not install the unit under the floor carpet. where the heat dissipation from the unit will be
considerably impaired.
Trunk Installation
Prepare a suitable mounting board to install the unit securely.
Mark the four bolt holes on the mounting board using the template
(printed on the carton), then drill the holes (3 mm dia.).
\
template
3 Secure the board in the trunk compartment.

Orel al atveyt(e) ats
Caution Make terminal connections as illustrated
¢ Before making connections. disconnect the below
ground terminal of the car battery to avoid
short circuits.
« Connect the red power input lead only after ail
other leads have been connected.
¢ Be sure to connect the ground 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 use speakers with adequate power
handling capacities. If you use speakers with
small capacity, they will be damaged.
¢ Do not connect the © terminal of the speaker
system with the car chassis, and do not
connect the © terminal of the right speaker
with that of the left speaker.
e If your car is equipped with computer system
for navigation or some other purposes, be
sure not to remove the ground wire from the
car battery. If you disconnect the wire, the
memory of the computer may be erased. To
avoid short circuits when making connections,
try to connect the +12 V power input lead only
after ail other leads have been connected.
Loosen the screw of the terminal and
wind the stripped cord around the
screwdriver. Make sure that the cord
2 Tighten the screw down with a
cannot be pulled out.

Connection
of
a
4-speaker
System
|
Before
Making
connections.
remember
that
the
input
signal
to
each
jack
(A.
B.C.
D)
is
output
from
| the corresponding speaker terminals
Rear
Front
Car stereo
Remote control lead
Channel switch (4 ch)
Front
speakers
SPEAKER OUT
@——A-—-0 (2ch)o —c—---©
®AO OBO(3ch}o—c—O
GAO OBO(Ach\OCe ODO
Rear
speakers
To a metal point
of the car
at least 30A)
12 V car battery
Notes on the 4 or 3-speaker connection
¢ Set the channel switch to 4 ch on the 4-speaker
connection and to 3 ch on the 3-speaker connection
¢ On the 3-speaker connection, use only the A, B, C
input jacks and connect the speaker cords to the
@-A-© O-B-© (3 ch) @-C—O
marked terminals as shown above
¢ Make sure to connect the remote contro! lead of the
car stereo to the REMOTE terminal
e Use the power connecting cord with the fuse
attached (at least 30 A).
6)
You can also make a 4-speaker connection with
two channel inputs
Use the A. C input jacks and set the channel switch to
4 ch. The result is that the input to the A jacks is output
from the A, B terminals and the input to the C jacks is
output from the C, D jacks.

| Connection of a 3-speaker System
Remote control lead
Rear speakers
@—A—@(2ch)e—c——o
DAO SBO(AChH)OCO 00-0
Fuse
(at least 30A)
12 V car battery
To a metal point
of the car

Connections
Connection of a 2-speaker System
q
Remote contro! lead
Car stereo
SPEAKER OUT
PUT @—A—6(2ch}o—c—o ana
@AO OBO(3ch}o—c—O
GAO OBO(4ch\OCe ODO
Rear speakers
12 V car battery
Notes on the 2-speaker connection
¢ Set the channel switch to 2 ch.
¢ Use only the A, C input jacks and connect the
speaker cords to the ®—A—O (2 ch) ®-C—9
marked terminals as shown above.
¢ Make sure to connect the remote control lead of the
car stereo to the REMOTE terminal.
« Use the power connecting cord with the fuse
attached (at least 30 A)
0

Level Adjustment Control
The input level can be varied with this control.
Use it to adjust the input sound level when
using source equipment of other manufacturers.
Be sure to set the control to SONY STD if the
unit is connected to a SONY car stereo. Turn it
to 0.1 V when the input level of the cassette car
stereo or CD player seems low.
SONY STD
O.,

AUDIO POWER SPECIFICATIONS
POWER
OUTPUT
AND
TOTAL
HARMONIC
DISTORTION
30
watts
per
channel
minimum
continuous
average
power
into
4
ohms,
both
channels
driven
from
20-20,000
Hz
with
no
more
than
0.08%
total
harmonic
distortion
per
Car
Stereo
Ad
Hoc
Committee
standards.
Other Specifications
Power supply system
Pulse power supply circuitry
Input Car stereo input (phono jack)
Outputs Speaker outputs
Speaker impedance
2-8 ohms
Maximum power output
4 ch: 55 watts x 4 at 4 ohms
3 ch: 55 watts x 2 + 120 watts
at4 ohms
2ch: 120 watts x 2 at 4 ohms
Frequency response
8 Hz-100 kHz *$ dB (4 ohms)
Harmonic distortion
0.005%
Input level adjustment range
0.1-2V
Power requirements
12 V DC car battery (negative ground)
Current drain 28 A (at rated output)
Input remote current
5mA
Dimensions Approx. 310 x 55 » 200 mm (w/hid)
(12%/a x 2'/4 x 77/8 inches)
Weight Approx. 3.5 kg (7 Ib. 11 02.)
Accessories supplied
Mounting hardware (1 set)
Design and specifications subject to change without
notice.