Yamaha DSP-A990 Manual de utilizare

Categorie
Amplificatoare audio
Tip
Manual de utilizare
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REAR
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NATURAL SOUND DIGITAL SOUND FIELD PROCESSING AMPLIFIER DSP
-
A990
INPUT SELECTOR VCR I CD LD
PHONO
TV/DBS
PRO LOGIC
DECODER
SOUND FIELD
PROCESSOR
CINEMA DSP
7ch
DIGITAL SOUND FIELD PROCESSING AMPLIFIER / OPERATION MANUAL
AMPLIFICATEUR DE TRAITEMENT DE CHAMP SONORE NUMERIQUE / MODE D’EMPLOI
DIGITAL-KLANGFELDVERSTÄRKER / BEDIENUNGSANLEITUNG
DIGITAL LJUDFÄLTSFÖRSTÄRKARE / BRUKSANVISNING
AMPLIFICATORE DIGITALE DI PROCESSAMENTO DEL CAMPO SONORO / LIBRETTO D’ISTRUZIONI
AMPLIFICADOR DE PROCESAMIENTO DE CAMPO DE SONIDO DIGITAL / MANUAL DE INSTRUCCIONES
BEDIENINGSHANDLEIDING VOOR DIGITALE GELUIDSVELDPROCESSING-VERSTERKER
D
D
S
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A
A
9
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Congratulations!
You are the proud owner of a Yamaha Digital Sound Field Processing (DSP) System—an
extremely sophisticated audio component. The DSP system takes full advantage of Yamaha’s
undisputed leadership in the field of digital audio processing to bring you a whole new world
of listening experiences. Follow the instructions in this manual carefully when setting up your
system, and the DSP system will sonically transform your room into a wide range of listening
environments—anything from a famous concert hall to a cozy jazz club. In addition, you get
incredible realism from Dolby-Surround encoded video sources using the built-in Dolby Pro
Logic Surround Decoder.
Seven built-in channels of amplification on the DSP-A990 mean that no additional
amplifiers are required to enjoy advanced digital sound field processing.
Rather than tell you about the wonders of digital sound field processing, however, let’s get
right down to the business of setting up the system and trying out its many capabilities.
Please read this operation manual carefully and store it in a safe place for later reference.
1
English
SAFETY INSTRUCTIONS
1. AVOID EXCESSIVE HEAT, HUMIDITY, DUST
AND VIBRATION
Keep the unit away from locations where it is likely to be
exposed to high temperatures or humidity—such as
near radiators, stoves, etc. Also avoid locations which
are subject to excessive dust accumulation or vibration
which could cause mechanical damage.
2. INSTALL THE UNIT IN WELL-VENTILATED
CONDITION
The openings on the cabinet assure proper ventilation
of the unit. If these openings are obstructed, the
temperature inside the cabinet will rise rapidly.
Therefore, avoid placing objects against these
openings, and install the unit in well-ventilated
condition. Make sure to allow a space of at least 10
cm behind and on the both sides and at least 20 cm
above the top panel of the unit. Otherwise it may not
only damage the unit, but also cause fire.
3. KEEP THE AC POWER PLUG
DISCONNECTED DURING VACATION ETC.
When not planning to use this unit for long periods of
time (ie., vacation, etc.), disconnect the AC power
plug from the wall outlet.
4. AVOID PHYSICAL SHOCKS
Strong physical shocks to the unit can cause damage.
Handle it with care.
5. DO NOT OPEN THE UNIT OR ATTEMPT
REPAIRS OR MODIFICATIONS YOURSELF
This product contains no user-serviceable parts. Refer
all maintenance to qualified Yamaha service personnel.
Opening the unit and/or tampering with the internal
circuitry will make servicing difficult and will endanger
you and your unit.
6. MAKE SURE POWER IS OFF BEFORE
MAKING OR REMOVING CONNECTIONS
Always turn power OFF prior to connecting or
disconnecting cables. This is important to prevent
damage to the unit itself as well as other connected
equipment.
7. HANDLE CABLES CAREFULLY
Always plug and unplug cables—including the AC
cord—by gripping the connector, not the cord.
8. CLEAN WITH A SOFT DRY CLOTH
Never use solvents such as benzine or thinner to clean
the unit. Wipe clean with a soft, dry cloth.
9. ALWAYS USE THE CORRECT POWER
SOURCE
Make sure that the power source voltage specified on
the rear panel matches your local AC mains supply.
10.KEEP AWAY FROM TUNERS
Digital signals generated by the unit may interfere with
other equipment such as tuners, receivers or TVs. Move
the system farther away from such equipment if
interference is observed.
IMPORTANT!
Please record the model and serial number of your
unit in the space below.
Model:
Serial No.:
The serial number is located on the rear of the unit.
Retain this Owner’s Manual in a safe place for future
reference.
Voltage Selector (General Model only)
The voltage selector on the rear panel of this unit
must be set for your local mains voltage
BEFORE plugging into the AC mains supply.
Voltages are 110/120/220/240 AC, 50/60 Hz.
WARNING
To reduce the risk of fire or electric shock, do not
expose this unit to rain or moisture.
For U.K. customers
If the socket outlets in the home are not suitable for
the plug supplied with this appliance, it should be cut
off and an appropriate 3 pin plug fitted. For details,
refer to the instructions described below.
Note: The plug severed from the mains lead must be
destroyed, as a plug with bared flexible cord is
hazardous if engaged in a live socket outlet.
SPECIAL INSTRUCTIONS FOR U.K. MODEL
IMPORTANT
The wires in the mains lead are coloured in
accordance with the following code.
Blue: NEUTRAL
Brown: LIVE
As the colours of the wires in the mains lead of this
apparatus may not correspond with the coloured
markings identifying the terminals in your plug,
proceed as follows. The wire which is coloured BLUE
must be connected to the terminal which is marked
with the letter N or coloured BLACK. The wire which is
coloured BROWN must be connected to the terminal
which is marked with the letter L or coloured RED.
Making sure that neither core is connected to the
earth terminal of the three pin plug.
This product complies with the radio frequency
interference requirements of the Council Directive
82/499/EEC and/or 87/308/EEC.
PRECAUTIONS & SAFETY INSTRUCTIONS
The apparatus is not disconnected from the AC
power source as long as it is connected to the wall
outlet, even if the apparatus itself is turned off.
PRECAUTIONS & SAFETY INSTRUCTIONS ..................................1
SETUP & ADJUSTMENT...................................................................3
1-1. GETTING STARTED....................................................................3
1-2. SETUP........................................................................................10
1-3. CONTROLS & ADJUSTMENTS...............................................20
1-4. ADJUSTMENT...........................................................................24
GENERAL OPERATION...................................................................28
2-1. PLAYING A SOURCE................................................................28
2-2. RECORDING A SOURCE TO AUDIO/VIDEO TAPE
(OR DUBBING FROM A TAPE TO ANOTHER)........................29
2-3. DIGITAL SOUND FIELD PROGRAMS.....................................31
2-4. SELECTING SOUND FIELD PROGRAMS..............................31
2-5. MUTING THE EFFECT SOUND...............................................32
2-6. SUPERIMPOSED VIDEO PROGRAM/PARAMETER
DISPLAY.....................................................................................32
2-7. DESCRIPTIONS OF THE SOUND FIELD PROGRAMS.........33
2-8. REMOTE CONTROL “LEARNING” FUNCTION.......................38
CREATING YOUR OWN SOUND FIELDS.......................................40
3-1. SELECTING AND EDITING PROGRAM PARAMETERS .......40
3-2. DESCRIPTIONS OF THE DIGITAL SOUND FIELD
PARAMETERS...........................................................................42
TROUBLESHOOTING......................................................................45
SPECIFICATIONS.............................................................................46
2
CONTENTS
1-1. GETTING STARTED
Unpacking
If you haven’t already done so, carefully remove this unit and its
accessories from the box and wrapping material.You should find the
unit itself and the following accessories.
Installing the Remote Control Unit Batteries
Since the remote control unit will be used for many of this unit’s
control operations, you should begin by installing the supplied
batteries.
1. Turn the remote control unit over and slide the battery
compartment cover downward in the direction of the arrow.
2. Insert the batteries (R6, AA, UM-3 type), being careful to align
them with the polarity markings on the inside of the battery
compartment.
3. Close the battery compartment cover.
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SETUP & ADJUSTMENT
Remote control
User program sheets
Batteries
When you notice that remote control operation has become
erratic, or the distance from which the remote control will function
has decreased, it’s time to replace the batteries.Always replace all
batteries at the same time.
Make sure that the YPC/USER/LEARN switch on the remote
control unit is set to the YPC or USER position for normal
operation.
This remote control uses an advanced, highly directional infrared
beam.Be sure to aim the remote control directly at the remote
control sensor on the main unit when operating.
Remote control transmitter operation range
Notes
There should be no large obstacles between the remote
control transmitter and the main unit.
If the remote control sensor is directly illuminated by strong
lighting (especially an inverter type of fluorescent lamp etc.),
it might cause the remote control transmitter to work
incorrectly. In this case, reposition the main unit to avoid
direct lighting.
Digital Sound Field Processing
What is it that makes live music so good? Today’s advanced
sound reproduction technology lets you get extremely close to the
sound of a live performance, but chances are you’ll still notice
something missing, the acoustic environment of the live concert hall.
Extensive research into the exact nature of the sonic reflections that
create the ambience of a large hall has made it possible for Yamaha
engineers to bring you this same sound in your own listening room,
so you’ll feel all the sound of a live concert.What’s more, our
technicians, armed with sophisticated measuring equipment, have
even made it possible to capture the acoustics of a variety of actual
concert halls, jazz clubs, theaters, etc.from around the world, to
allow you to accurately recreate any one of these live performance
environments, all in your own home.
4
30°
30°
Remote control
sensor
Within approximately
6 m (19.7 feet)
Dolby Pro Logic Surround
The Dolby Pro Logic Surround Decoder program lets you
experience the dramatic realism and impact of Dolby Surround movie
theater sound in your own home.Dolby Pro Logic gets its name from
its professional-grade steering logic circuitry, which provides greater
effective channel separation for a much higher degree of realism than
the “passive” Dolby Surround circuits found in today’s typical home
audio/video equipment.Dolby Pro Logic Surround provides a true
center channel, so that there are four independent channels, unlike
passive Dolby Surround, which has in effect only three channels:left,
right, and rear.This center channel allows listeners seated in even
less-than-ideal positions to hear the dialog originating from the action
on the screen while experiencing good stereo imaging.
This Dolby Pro Logic Surround Decoder employs a digital signal
processing system.This system improves the stability of sound at
each channel and crosstalk between channels, so that positioning of
sounds around the room is more accurate compared with
conventional analog signal processing systems.
In addition, this unit features a built-in automatic input balance
control.This always assures you the best performance without
manual adjustment.
Manufactured under license from Dolby Laboratories Licensing
Corporation.Additionally licensed under Canadian patent number
1,037,877.“Dolby”, “Pro Logic”, and the double-D symbol are
trademarks of Dolby Laboratories Licensing Corporation.
Dolby Pro Logic Surround + DSP
Additionally you can enjoy sound environment created by the
combination of Dolby Pro Logic and YAMAHA DSP.
Precise sound
movement and orientation by the Dolby Pro Logic technology is
added to sound fields which are precisely recreated on the
basis of actual acoustic environments by the DSP technology,
so it is suitable for any Audio/Video source with video image.
This combination is used on sound field programs No. 8 through
No.11, and “Enhanced DOLBY PRO LOGIC” of No.12.
The YAMAHA “CINEMA DSP”logo indicates these programs are
created by the combination of Dolby Pro Logic and YAMAHA DSP
technology.
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English
CINEMA DSP
7ch
Video superimpose
If you connect your video cassette recorder, video disc player,
video monitor, etc.to this unit, you can take advantage of this unit’s
capability to display program titles, parameter data and information
about other various settings and adjustments on your video monitor’s
screen.This information will be superimposed over the video image.
If there is no video source connected or it is turned off, the
information will be displayed over a blue colored background.
NOTE: The program titles, parameter data and other information are
also displayed on the display panel of this unit.
Open/close the control door
When it is not necessary to operate controls inside the control
door, close the door.
To open the door
To close the door
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P01 CONCERT HALL 1
/
Hall A in Europe
INIT.DLY 30ms
ROOM SIZE 1.0
LIVENESS 5
....
....
.... ...
/
/
CONCERT HALL 1
Hall A in Europe
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Setting Up Your Speaker System
This unit has been designed to provide the best sound field
quality with a full seven-speaker system setup, using two extra pairs
of effect speakers to generate the sound field plus one center
speaker for dialog, when using Dolby Pro Logic Surround decoding.
We therefore recommend that you use a seven-speaker setup.A
four-speaker system using only one pair of effect speakers for the
sound field will still provide impressive ambience and effects,
however, and may be a good way to begin with this unit.You can
always upgrade to the full seven speaker system later. In the 4 or 5
speaker system, the Digital Sound Field Processing is still
performed, but the main speakers are used for both the main
channels and the front effect channels.
Use of the Center Dialog Speaker Is Recommended
With digital sound field programs No.8 through No.12, by using
either the Directional Enhancement circuit or the Dolby Pro Logic
decoder, decoded signals will be output from the center channel.
Therefore, if you want to maximize the performance of your
Audio/Video home theater system, it is recommended that you use a
center channel speaker.
If for some reason it is not practical to use a center speaker, it is
possible to enjoy movie viewing without it.Best results, however, are
obtained with the full system.
It is also possible to further expand your system with the addition
of a subwoofer and amplifier.You may wish to choose the
convenience of a Yamaha Active Servo Processing Subwoofer
System, which has its own built-in power amp.
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4 Speaker System
Simplest system.
You can enjoy widely diffused sound by
only adding two additional speaker units
at the rear.
FRONT MIX switch—Set to ON.
(See page 13.)
Center Mode—Set to PHNTM.
(See page 26.)
5 Speaker System
Good for Audio/Video sources and
Dolby Pro Logic Surround.
With sound field programs No. 8
through No. 12, which utilize the center
speaker effect, more precise center
localization can be obtained.
FRONT MIX switch—Set to ON.
(See page 13.)
Center Mode—Set to NRML or WD.
(See page 26.)
6 Speaker System
Good for sound fields from 2-channel
stereo sources.
With sound field programs No. 1
through No. 7, a sound effect matching
that of a 7-speaker system can be
obtained. The addition of front left and
right effect speakers produces a more
effective sound field.
FRONT MIX switch—Set to OFF.
(See page 13.)
Center Mode—Set to PHNTM.
(See page 26.)
7 Speaker System
This is the recommended speaker
system, providing the best sound
effects.
With sound field programs No. 1
through No. 7, using both sets of effect
speakers (front and rear), reproduces
the most effective sound field. With the
sound field programs No. 8 through No.
12, the center speaker provides precise
center localization.
FRONT MIX switch—Set to OFF.
(See page 13.)
Center Mode—Set to NRML or WD.
(See page 26.)
Four Possible Types of Speaker System Configurations Recommended
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Speakers and Speaker Placement
Your full seven-speaker system will require three speaker pairs:
the MAIN SPEAKERS (your normal stereo speakers), the FRONT
EFFECT SPEAKERS and the REAR EFFECT SPEAKERS, plus the
CENTER SPEAKER.You may also be using a subwoofer.
You will probably use your present stereo speakers as the MAIN
SPEAKER pair.The front effect and rear effect do not need to be
equal with the MAIN SPEAKERS, although the center speaker
should be as close as possible.They should have enough power
handling capacity to accept the maximum output of the DSP system
or the external amps that will drive them.
Place the MAIN SPEAKERS in the normal position.
Place the FRONT EFFECT SPEAKERS further apart than the
MAIN SPEAKERS, on either side of and a few feet behind and above
the MAIN SPEAKER pair.
Place the REAR EFFECT SPEAKERS behind your listening
position.They should be nearly six feet up from the floor.
Place the CENTER SPEAKER precisely between the two MAIN
SPEAKERS.(To avoid interference, keep the speaker above or
below the television monitor, or use a magnetically shielded speaker.)
If using a SUBWOOFER, such as a Yamaha Active Servo
Subwoofer System, the position of the speaker is not so critical
because low bass tones are not highly directional.
Main speaker Effect speaker Center speaker
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1-2. SETUP
Before you start making connections make sure all related electronic components are turned OFF.
REAR PANEL
5ch 7ch
ON OFF
TV/DBS
GND
FRONT
MIX
LOW
PASS
PRE OUT
MAIN IN
MAIN CH
REAR
—I0dB MAIN
0dB LEVEL
FRONT CENTER
COUPLER
FRONT
6
MIN./SPEAKER
6
MIN./HAUT–
PARLEUR
MAIN
6
MIN./SPEAKER
6
MIN./HAUT–
PARLEUR
REAR
6
MIN./SPEAKER
6
MIN./HAUT–
PARLEUR
CENTER
A B:4
MIN./SPEAKER
A OR B:6
MIN./SPEAKER
A B:4
MIN./
HAUT–PARLEUR
A OU B:6
MIN./
HAUT–PARLEUR
AB
+
+
A B
A OR B
+
AUX 1
PHONO
1
2
3
4
SPEAKERS
12
3
4
56 7890
AB
CDEF
G
HI
J
(General Model)
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1 Audio Signal Connection Jacks (for Audio Source Equipment)
Connect the inputs and/or outputs of your audio equipment.
2 Audio/Video Signal Connection Jacks (for Video Source
Equipment)
Connect the audio and video inputs and/or outputs of your video
equipment.In place of the VIDEO jacks, the S VIDEO jacks can
be used for higher resolution and improved picture quality if your
VCR, monitor, etc.are equipped with S-VIDEO connectors.
3 Main Level Switch
Normally set to “0 dB”.If desired, you can decrease the main-
channel output level at the MAIN speaker terminals by 10 dB by
setting this switch to “–10 dB”.
4 Pre Out Jacks
Main-channel line output.Connected with jumper bars to MAIN
IN jacks when the built-in amplifier is used.Connected to input
jacks of external stereo power amplifier (MAIN IN or TAPE PLAY
jacks of integrated amplifier or receiver) when using external
amplification.
5 Main In Jacks
Line input to built-in main-channel amplifier.Connected with
jumper bars to PRE OUT jacks when the built-in amplifier is used.
Not connected when using an external power amplifier.
6 Main Speaker Terminals
When using this unit’s built-in main-channel amplifier, connect the
main speakers here.The jumper bars must be plugged in to
connect the MAIN IN jacks to the PRE OUT jacks.
7 Front Effect Speaker Terminals
When using the built-in front-channel amplifier, connect the front
effect speakers here.
8 Center Speaker Terminals
When using the built-in center-channel amplifier, connect one or
two center speakers here.
9 Center Speaker Impedance Switch
Set to “A + B” when using two center speakers, or to “A OR B”
when using only one center speaker.
0 Rear Effect Speaker Terminals
When using the built-in rear-channel amplifier, connect the rear
effect speakers here.
A GND Terminal
Connects the ground wire of the turntable to produce minimum
hum.In some cases, however, better results may be obtained
with the ground wire disconnected.
B Video NTSC/PAL Switch (General Model only)
Set this switch to the position corresponding to the standard
that your video equipment employs.
C Front Effect Out Jacks
Front-channel line output.Not connected when the built-in
amplifier is used. Can be connected to input jacks of an
external stereo power amplifier driving the front effect
speakers.
D Front Mix Switch
Set to “OFF (7ch)” when setting up a full 7 or 6 speaker system,
or to “ON (5ch)” when setting up a 5 or 4 speaker system.
E Rear Effect Out Jacks
Rear-channel line output. Not connected when the built-in
amplifier is used. Can be connected to input jacks of an
external stereo power amplifier driving the rear effect speakers.
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F Low Pass Jack
When using a subwoofer, connect its amplifier input to this
jack.Frequencies below 200 Hz from the left main, right main
and center channels are output to this jack.
G Center Out Jack
Center-channel line output.Not connected when the built-in
amplifier is used.Can be connected to input jack of an external
power amplifier to drive the center speaker.
H Voltage Selector (General Model only)
Be sure to set to the line voltage in your area before applying
power.Consult your dealer if unsure of the correct setting.
I Switched AC Outlets
You may plug other audio components into these sockets as
long as their combined power consumption does not exceed
the specified value shown.“Switched” means that these
components are turned on and off by this unit’s power switch.
J Unswitched AC Outlet (General Model only)
The total power consumption of audio components plugged
into this socket should not exceed the specified value shown.
“Unswitched” means that power is available even when this unit
is off.
NOTE: If an external power amplifier is connected to the front
effect or rear effect output jacks, the corresponding internal
amplifier will be turned off and no output will be available at the
speaker terminals.
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REAR PANEL SWITCH AND CONTROL SETTINGS
There are several switches and controls on the rear panel that
you’ll have to check before operating your system, and it’s a good
idea to do it before you connect cables. Locate the MAIN LEVEL
slide switch (3) and FRONT MIX slide switch (D).Make sure the
MAIN LEVEL switch is set to “0 dB” and the FRONT MIX switch is set
to “OFF” for 7 or 6 speaker driving.
In a 5 or 4 speaker system, set the FRONT MIX switch to “ON”.
Next, set the NTSC/PAL switch (B) to the position corresponding
to the standard which your video equipment employs.(General Model
only)
GENERAL INSTRUCTIONS FOR CONNECTIONS
Make sure that you have the left (L) and right (R) channels
correctly connected.That means that jacks marked “Lon this unit
must be connected to jacks marked “L on other units.Likewise with
the “R” jacks.This is easy if you remember to always use the red plug
for the “R” jacks and the white plug for the “L jacks.
With speaker connections you must also be sure that the polarity
is correct.For each amplifier and each channel, connect the plus (+)
terminal of the amplifier to the plus terminal of the speaker, and
connect the minus (–) terminal of the amplifier to the minus terminal
of the speaker.To keep track of polarity, use a speaker cable that has
one of the two wires marked by a stripe or a different color.
14
TV/DBS
GND
AUX 1
PHONO
1
2
3
4
AUDIO OUT
LINE OUT
LINE IN
OUTPUT
GND
LINE OUT
VIDEO OUT
AUDIO IN
VIDEO IN
AUDIO OUT
VIDEO OUT
OUTPUT
OUTPUT
AUDIO OUT
VIDEO OUT
AUDIO IN
VIDEO IN
AUDIO OUT
VIDEO OUT
VIDEO IN
CONNECTING AUDIO/VIDEO SOURCE EQUIPMENT TO THIS UNIT
*
If you have YAMAHA components numbered as 1, 2, 3, etc. on the rear panel, connections can be made easily by making sure to
connect the output (or input) terminals of each component to the same-numbered terminals of this unit.
Monitor TV
Tuner
Tape deck 1
CD player
TV/Satellite tuner
Video cassette recorder 1
Video disc player
Video cassette recorder 2
Tape deck 2
Turntable
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CONNECTING TO S VIDEO JACKS
If your video cassette recorder, video disc player, etc. and your
monitor are equipped with “S” (high-resolution) video terminals,
connect them to this unit’s S VIDEO jacks, and connect this unit’s
S VIDEO MONITOR OUT jack to the “S” video input of your monitor.
Otherwise, connect the composite video jacks from your video
cassette recorder, video disc player, etc. to the VIDEO jacks of this
unit, and connect this unit’s VIDEO MONITOR OUT jack to the
composite video input of your monitor.
NOTE: If video signals are sent to both S VIDEO input and VIDEO
input jacks, the signals will be sent to their respective output jacks
independently.
NOTE: If your unit is the General Model, be sure the NTSC/PAL
switch has been correctly set to the standard that your video
equipment employs.Singapore model has no switch and uses the
NTSC standard, while other models without a switch use the PAL
standard.
Notes about the Video superimpose
If you watch a video source that is connected to both S VIDEO and
VIDEO input jacks of this unit, signals of screen display information
are output from only the S VIDEO MONITOR OUT jack.
When no video signal is input to either S VIDEO or VIDEO input
jacks of this unit, signals of screen display information are output
from both S VIDEO MONITOR OUT and VIDEO MONITOR OUT
jacks with a color background.
* For the General Model, if the NTSC/PAL switch on the rear panel
is set to “PAL”, nothing will be output from either S VIDEO
MONITOR OUT or VIDEO MONITOR OUT jack in this case.
TV/DBS
S-VIDEO
OUT
VIDEO OUT
VIDEO
OUT
S-VIDEO OUT
VIDEO IN
S-VIDEO IN
S-VIDEO IN
VIDEO IN
VIDEO IN
S-VIDEO IN
VIDEO OUT
S-VIDEO OUT
S-VIDEO
OUT
VIDEO
OUT
Monitor TV
TV/Satellite tuner
Video cassette recorder 1
Video disc player
Video cassette recorder 2
16
For connecting with a monitor TV that uses a 21 pin
connector for input (for Europe and U.K. models)
Make a connection as figured below with a commercially
available scart-plug connector cable.
CONNECTING SPEAKER SYSTEMS
Connect the SPEAKERS terminals to your speakers with wire of
the proper gauge, cut as short as possible.If the connections are
faulty, no sound will be heard from the speakers.Make sure that the
polarity of the speaker wires is correct, that is, + and – markings are
observed.If these wires are reversed, the sound will be unnatural
and will lack bass.Do not let the bare speaker wires touch each other
or any other metal part as this could damage this unit and/or
speakers.
NOTE: Use speakers with the specified impedance shown on the
rear of this unit.
Red: positive (+)
Black: negative (–)
Unscrew the knob.
Insert the bare wire.
[Remove approx. 5mm (1/4”)
insulation from the speaker
wires.]
Tighten the knob and
secure the wire.
NOTE: Banana Plug connections are also possible (Australia and
General models only).Simply insert the Banana Plug connector into
the corresponding terminal.
Monitor TV
Scart-plug
connector
cable
No connection
TV/DBS
VIDEO
AUDIO L
AUDIO R
17
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CONNECTING THE MAIN SPEAKERS TO THIS UNIT
Connect the MAIN speakers to the MAIN speaker output
terminals of this unit.Make sure that the jumper bars between the
PRE OUT and MAIN IN jacks on the rear panel are in place.It is also
possible to use an external power amplifier if more power is desired.
In this case, remove the jumper bars and connect the PRE OUT
jacks to the INPUT jacks of a stereo power amplifier with a stereo pin
cable—making sure to connect the left and right channels correctly.
Connect the MAIN speakers to the speaker output terminals of the
power amplifier.
NOTE:If an external amplifier is used for the main speakers, it is
recommended to use the MAIN speaker terminals of this unit for the
rear effect speakers.
Connect the REAR output jacks to the MAIN IN jacks with a pin cord.
This combination is highly upgraded and ideal for the division of
sound quality, because the rear channel output of the Audio/Video
system is equally important as the center channel.
PRE OUT
INPUT
Main speaker
This unit
Main speaker
Power amplifier
18
CONNECTING THE EFFECT SPEAKERS AND THE
CENTER SPEAKER(S) TO THIS UNIT
Connect the FRONT effect speakers to the FRONT effect
speaker output terminals of this unit.
If the FRONT effect speakers are not used, the FRONT MIX
switch should be set to “ON”.
Connect the REAR effect speakers to the REAR effect speaker
output terminals of this unit.
Connect the CENTER speaker to the CENTER speaker output
terminals.If you will be using one CENTER speaker, connect it to
either the A or B terminals and set the CENTER speaker impedance
switch to “A OR B” (bottom position).If using two CENTER speakers,
connect them to the A and B terminals, and set the switch to “A + B”
(top position).If, however, you will not be using a CENTER speaker,
be sure to set the Center Mode to “PHNTM” (phantom).(See page
26.)
NOTE:The speaker connections above are fine for most
applications.If for some reason, however, you wish to use an external
power amp for any or all of the effect and center channels, connect
the line level output jack(s) for each channel to the INPUT jacks of
the external amp and connect the corresponding speaker pair to the
speaker terminals of the external amp.
NOTE:If the pin plug is inserted in the FRONT/REAR output jacks,
the speaker output from the built-in amplifier will be cut off.
LR
LR
Front effect
speaker
Rear effect
speaker
Rear effect
speaker
Front effect
speaker
This unit
Center speaker
Center speaker
Center speaker
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Yamaha DSP-A990 Manual de utilizare

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Amplificatoare audio
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Manual de utilizare