RDA-986
DTS® SURROUND ADAPTOR
DTS SURROUND ADAPTOR RDA-986
POWER
DTS
SIGNAL
WARNING:TO REDUCE THE RISK OF FIRE
OR ELECTRICAL SHOCK, DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DTS SURROUND ADAPTOR
MODEL NO. RDA-986
POWER CONSUMPTION: 55W
AVIS: RISQUE DE CHOC ELECTRIQUE–NE PAS OUVRIR
FRONT REAR
DIGITAL
COAX
IN
IN
OUT
L
CENTER
RDA-986
OPTI
R
SUBWOOFER
INPUT
OUTPUT
5.1 CH
Owner’s Manual
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RDA-986
Figure 1: Controls and Connections
DTS SURROUND ADAPTOR RDA-986
POWER
DTS
SIGNAL
1
2
3
4
WARNING:TO REDUCE THE RISK OF FIRE
OR ELECTRICAL SHOCK, DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DTS SURROUND ADAPTOR
MODEL NO. RDA-986
POWER CONSUMPTION: 55W
AVIS: RISQUE DE CHOC ELECTRIQUE–NE PAS OUVRIR
FRONT REAR
DIGITAL
COAX
IN
IN
OUT
L
CENTER
RDA-986
OPTI
R
SUBWOOFER
INPUT
OUTPUT
5.1 CH
5
6
7
8
9
10
11
12
Figure 2: Basic Wiring Connections
DVD PLAYER
AUDIO OUTPUT
VIDEO OUTPUT
DIGITAL
OUT
S-VIDEO
LEFT
COMPOSITE
RIGHT
ROTEL RDA-986
WARNING:TO REDUCE THE RISK OF FIRE
OR ELECTRICAL SHOCK, DO NOT EXPOSE
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DTS SURROUND ADAPTOR
THIS EQUIPMENT TO RAIN OR MOISTURE.
MODEL NO. RDA-986
POWER CONSUMPTION: 55W
AVIS: RISQUE DE CHOC ELECTRIQUE–NE PAS OUVRIR
FRONT REAR
DIGITAL
COAX
IN
IN
OUT
L
CENTER
RDA-986
OPTI
R
SUBWOOFER
INPUT
OUTPUT
5.1 CH
SURROUND SOUND PROCESSOR
DIGITAL INPUT
OPTICAL
5.1 CH INPUT
DIGITAL SURROUND SOUND
PROCESSOR
MODEL NO. RSP-975
POWER CONSUMPTION: 22W
SPEAKER CONFIGURATION
COAXIAL
CENTER FRONT REAR
SUB
MONITOR
TV
SMALL
SMALL SMALL
ON
COAX
1
2
NONE
LARGE
LARGE
OFF
LARGE
CD
RSP-975
SWITCHED 800W MAX
COAX
DVD
TUNER
TAPE
AUX
VIDEO
1
VIDEO
2
VIDEO
3
VIDEO
4
FRONT
REAR
CENTER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
L
AVIS: RISQUE DE CHOC ELECTRIQUE–NE PAS OUVRIR
POWER
R
WARNING:TO REDUCE THE RISK OF FIRE
OR ELECTRICAL SHOCK, DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE.
SUB
IN
OUT
IN
OUT
IN
OUT
IN
OUT
OUTPUT
1
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DTS® SURROUND ADAPTOR RDA-986
Figure 3: Wiring Connections with Second Surround Adaptor
DVD PLAYER
AUDIO OUTPUT
VIDEO OUTPUT
S-VIDEO
LEFT
DIGITAL
OUT
COMPOSITE
RIGHT
ROTEL RDA-986
WARNING:TO REDUCE THE RISK OF FIRE
OR ELECTRICAL SHOCK, DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DTS SURROUND ADAPTOR
MODEL NO. RDA-986
POWER CONSUMPTION: 55W
AVIS: RISQUE DE CHOC ELECTRIQUE–NE PAS OUVRIR
FRONT REAR
DIGITAL
COAX
IN
IN
OUT
L
CENTER
RDA-986
OPTI
R
SUBWOOFER
INPUT
OUTPUT
5.1 CH
RDA-975 DOLBY DIGITAL DECODER
FRONT REAR
DIGITAL INPUTS
COAX 2
DOLBY SURROUND ADAPTOR
MODEL NO. RDA-975
POWER CONSUMPTION: 55W
L
CENTER
COAX 1
OPTICAL
RDA-975
R
SUBWOOFER
5.1 CH
OUTPUT
SURROUND SOUND PROCESSOR
SURROUND HI-PASS
FRONT HI-PASS
OFF ON
CENTER MODE
5.1 CH INPUT
CAUTION
PHANTOM
WARNING:TO REDUCE THE RISK OF FIRE
OR ELECTRICAL SHOCK, DO NOT EXPOSE
RISK OF ELECTRIC SHOCK
DO NOT OPEN
OFF
ON
NORMAL
WIDE
SWITCHED
500W MAX
THIS EQUIPMENT TO RAIN OR MOISTURE.
AVIS: RISQUE DE CHOC ELECTRIQUE–NE PAS OUVRIR
NORMAL
LARGE/THX
NONE
CENTER SPEAKER
INPUT
OUTPUT
TV MONITOR
OUTPUT
S-VIDEO INPUT
S-VIDEO OUTPUT
TUNER
DBS
LD
1
2
3
1
2
3
VIDEO 3
C
S
S
C
RCA
OUT
SURROUND SOUND PROCESSOR
MODEL NO. RSP-980
POWER CONSUMPTION: 22W
VIDEO
TUNER
DBS
VIDEO
2
VIDEO
2
CD
LD
1
3
1
3
TAPE MONITOR ZONE 2
IN OUT OUT
RSP-980
FRONT
REAR
CENTER
AUDIO
PREOUT
L
IN
OUT
POWER
R
REMOTE EXT
SUBWOOFER
2
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RDA-986
A Few Precautions
Contents
Please read this manual carefully. In addition to installation and
operating instructions, it provides valuable information on various
RDA-986 system configurations as well as general information
that will help you get optimum performance from your system.
Please contact your authorized Rotel retailer for answers to any
questions you might have. In addition, all of us at Rotel welcome
your questions and comments.
Getting Started ______________________________________ 3
A Few Precautions
Placement
3
3
AC Power and Control ________________________________ 3
AC Power Input
3
4
12
Save the RDA-986 shipping carton and all enclosed packing mate-
rial for future use. Shipping or moving the RDA-986 in anything
other than the original packing material may result in severe dam-
age that is not covered by the warranty. Be sure to keep the origi-
nal sales receipt. It is your best record of the date of purchase,
which you will need in the event warranty service is required.
Power Switch
and Power Indicator
1
2
Digital Signal Connections ____________________________ 4
Digital Inputs
and
4
4
4
4
5
7
Digital Input Selector Switch
6
Coaxial Digital Output
8
Placement
DTS Indicator
and Signal Indicator
3
4
Use common sense when placing the RDA-986 in a cabinet or
when stacking other equipment. Make sure that the shelf or cabi-
net can support its weight. Do not stack heavy components on top
of the RDA-986. Avoid placing the unit where it may be subject to
excessive heat such as on top of a large power amplifier or near a
heat register. For best performance, avoid placing the unit where
it may be subject to vibration, such as near a speaker.
Analog Signal Connections ___________________________ 4
25-pin Analog Output
RCA Analog Outputs
25-pin Analog Input
4
4
4
10
11
9
Specifications ________________________________________ 5
AC Power and Control
12
AC Power Input
Getting Started
Your RDA-986 is configured for the proper AC voltage in the coun-
try where you purchased it (either 115 volts or 230/240 volts). The
AC line configuration is noted on a decal on the back panel.
Thank you for purchasing the Rotel RDA-986 DTS® Surround
Adaptor. The RDA-986 is a high-quality outboard digital processor
for decoding discrete DTS 5.1 channel surround sound encoded
Laser Discs and Digital Video Discs. The RDA-986 accepts an en-
coded DTS digital signal, decodes it, and sends six discrete ana-
log surround sound audio signals to the 5.1 channel input on a
surround sound processor or other system controller. With its pre-
mium components, Balanced Design, and robust construction, the
RDA-986 will provide years of enjoyment in your system.
Note: Should you move your unit to another country, it may be
possible to reconfigure it for use on a different line voltage. Do not
attempt to perform this conversion yourself. Opening the enclo-
sure of the RDA-986 exposes you to dangerous voltages. Consult a
qualified service person or the Rotel factory service department
for information.
The RDA-986 is simple to operate. Other than a power switch,
there are no front panel controls or switches. The unit senses
when a DTS signal is present and engages the decoding circuitry
automatically.
The RDA-986 should be plugged directly into a 2-pin polarized wall
outlet or into the switched outlet on another component in your
audio system. Do not use an extension cord.
Be sure the power switch on the front panel of the RDA-986 is
turned off. Then, connect the supplied power cord to the AC
power receptacle on the rear of the unit and the AC power outlet.
The RDA-986 also provides pass-through digital outputs and ana-
log inputs to provide full flexibility in a number of system configu-
rations. For example, a second outboard decoder (such as Dolby
Digital) can be connected to the analog inputs of the RDA-986.
When a DTS signal is present at the digital input, the RDA-986 will
decode it and send the signal to the outputs. When no DTS signal
is present, the RDA-986 will pass the signal from the analog inputs
to the outputs.
If you are going to be away from home for an extended period of
time such as a month-long vacation, it is a sensible precaution to
unplug your RDA-986 (as well as other audio and video compo-
nents) while you are away.
3
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DTS® SURROUND ADAPTOR RDA-986
1
2
Power Switch
and Power Indicator
Analog Signal Connections
The power switch is located on the front panel of your RDA-986
Surround Adaptor. To turn the unit on, push the switch in. The LED
indicator above the switch will light, indicating that the unit is
turned on. To turn the RDA-986 off, push the button again and re-
turn it to the out position.
The RDA-986 has 5.1 channel analog output connections for send-
ing decoded DTS information (six discrete channels: left front,
right front, center, left rear, right rear, and subwoofer) to the sur-
round processor or system controller. In addition, the RDA-986
features a 5.1 channel analog pass-through input, which can be
used to accept a decoded 5.1 channel signal from another out-
board decoder, such as Dolby Digital, to the surround processor,
thus simplifying connections in an elaborate system.
Digital Signal Connections
The RDA-986 features two standard digital inputs (optical or co-
axial) which receive a digital data stream from a DTS-compatible
LaserDisc or DVD player. In addition, a pass-through digital output
connector (coaxial) can be used to send the raw digital data
stream to another processor, such as a Dolby Digital® decoder.
25-pin Analog Output
10
The most convenient analog output connection is the rear panel
25-pin connector. This is a standard DB-25 connector which car-
ries all six channels of decoded analog signal in a single cable. If
you are using a surround processor which has a matching DB-25
input, such as all Rotel surround processors, this will provide a
convenient, simplified output connection. Simply connect the out-
put to the matching 5.1 channel input on your surround processor
using a standard female-to-male DB-25 audio connector.
Digital Inputs
and
5
7
The RDA-986’s digital inputs accept a digital signal from your
LaserDisc or DVD player. Two types of digital inputs are available
– an optical input connection and a 75 ohm coaxial input connec-
tion. Select the type of connection that best matches the output
connector on your video disc player or other source component,
using either a standard optical digital cable or a standard 75 ohm
coax digital cable.
RCA Analog Outputs
11
The RDA-986 also provides six RCA output connectors for use with
surround sound processors lacking a DB-25 input. These outputs
provide exactly the same analog output signals as the DB-25 out-
put, except that connecting them requires the use of six standard
RCA-to-RCA audio cables. If you use the RCA outputs, make sure
that you connect the signal properly – the LEFT FRONT output on
the RDA-986 to LEFT FRONT input on the surround processor, etc.
Digital Input Selector Switch
6
A two-position switch located between the digital inputs selects
the appropriate digital input connector, either optical or coax. If
you connect your video disc player to the RDA-986’s optical input,
place this switch in the left position (labeled OPTI). If you use the
coax input, slide this switch to the right position (labeled COAX).
25-pin Analog Input
9
In many systems, the RDA-986 will be the only outboard surround
sound decoder; therefore, the only input connection will be con-
necting a DTS source component to the digital inputs described
above. However, elaborate systems may use two outboard decod-
ers (the RDA-986 for DTS signals and a separate Dolby Digital de-
coder). To simplify the wiring of such a system, the RDA-986
provides a 25-pin 5.1 channel analog input. This accepts the de-
coded output of a Dolby Digital decoder and passes it through, un-
changed, to the analog output of the RDA-986 to be sent on to the
surround processor. The RDA-986 does not have to be turned on
for this pass-through connection to work.
Coaxial Digital Output
8
The digital output connector is used to pass the unprocessed digi-
tal signal from the digital input through to another processor. For
example, the same DVD player might be used to play both DTS en-
coded and Dolby Digital encoded surround sound material. A DTS
encoded signal will be decoded by the RDA-986 and the resulting
5.1 channel analog signal sent to the surround sound processor. A
Dolby Digital encoded signal will be sent, unprocessed, from the
digital output to the digital input of a Dolby Digital decoder for pro-
cessing. This pass-through feature allows you to use the RDA-986
with an outboard Dolby Digital decoder or with a surround sound
processor that includes built-in Dolby Digital decoding.
Switching between the digital input and the pass-through analog
input is completely automatic, with the digital input receiving pri-
ority. If a DTS signal is present at the digital inputs, the unit de-
codes the DTS signal and sends the discrete analog signal to the
RDA-986 outputs. If no DTS signal is sensed at the digital inputs,
the signal at the analog inputs is passed through to the outputs.
Connect the digital output connector to the digital input connector
on your Dolby Digital decoder or directly to your surround sound
processor’s digital input, if it has built-in Dolby Digital decoding.
DTS Indicator
and Signal Indicator
3
4
Note: If you have a DTS signal at the digital inputs and an analog
signal at the analog inputs, the DTS signal will take priority. To
switch to the analog signal, put the DTS source component in its
PAUSE or STOP mode.
There are two LED indicators on the RDA-986 front panel which
indicate whether a signal is present at the digital input. The SIG-
NAL indicator lights whenever a digital signal from a source com-
ponent is sensed by the digital inputs. The DTS indicator lights if
that digital signal is DTS encoded.
4
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RDA-986
Specifications
Total Harmonic Distortion (front, 1 KHz)
Frequency Response (± 1 dB)
Analog Inputs
< 0.03%
15Hz-20kHz
1 DB-25
Digital Inputs
1 coaxial
1 optical
Digital Input Impedance
Analog Outputs
75 Ohms
1 DB-25
6 RCA
Output Impedance
1 KOhms
Power Requirements
115 Volts, 60 Hz or
230 Volts, 50 Hz
Power Consumption
55 Watts
Dimensions (W x H x D)
440 x 104 x 310 mm
173/8 x 31/4 x 105/8"
Weight (net)
5.3 kg, 11.7 lb.
All specifications are accurate at the time of printing.
Rotel reserves the right to make improvements without notice.
Rotel and the Rotel HiFi logo are registered trademarks of The Rotel Co, Ltd., Tokyo, Japan.
DTS is a registered trademark of Digital Theater Systems.
Dolby Digital is a registered trademark of the Dolby Licensing Corporation.
5
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RDA-986
DTS® SURROUND ADAPTOR
The Rotel Co., Ltd.
10-10 Shinsen-Cho
Shibuya-Ku
Tokyo 150-0045
Japan
Phone: +81 3-5458-5325
Fax: +81 3-5458-5310
Rotel of America
54 Concord Street
North Reading, MA 01864-2699
USA
Phone: +1 978-664-3820
Fax: +1 978-664-4109
Rotel Europe
Meadow Road
Worthing, West Sussex BN11 2RX
England
Phone: +44 (0)1903 524 813
Fax: +44 (0)1903 524 831
Rotel Deutschland
Kleine Heide 12
D-33790 Halle/Westf.
Germany
Phone: +49 5201-87170
Fax: +49 5201-73370
082 OMRDA-986 080798
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