Rotel RDA-985 User's Manual
Contents
1. RDA 935 DTS DECODER ROTEL DTS DECODER RDA 985 POWER Drs SIGNAL APA 4 00 O OPT Coax 60 a 5 OO Osmos INPUT Owner s Manual RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL APPLICABLE FOR USA CANADA OR WHERE APPROVED FOR THE USAGE CAUTION TO PREVENT ELECTRIC SHOCK MATCH WIDE BLADE OF PLUG TO WIDE SLOT INSERT FULLY ATTENTION POUR EVITER LES CHOCS ELECTRIQUES INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU AU FOND This symbol is to alert the user to the presence of uninsulated dangerous voltages inside the product s enclosure that may constitute a risk of electric shock This symbol is to alert the user to important operating and maintenance service instructions in this manual and literature accompanying the product WARNING There are no user serviceable parts inside Refer all servicing to qualified service personnel WARNING To reduce the risk of fire or electric shock do not expose the RDA 985 to moisture or water Do not allow foreign objects to get into the enclosure If the unit is exposed to moisture or a foreign object gets into the enclosure immediately disconnect the power cord from the wall Take the unit to a qualified service person for insp2. 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 Coaxial Digital Output 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 ADTS encoded signal will be decoded by the RDA 985 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 985 with an outboard Dolby Digital decoder or with a surround sound processor that includes built in Dolby Digital decoding 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 There are two LED indicators on the RDA 985 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 Analog Signal Connecti
3. 000000 INPUT OUTPUT SURROUND SOUND PROCESSOR DIGITAL INPUT LDRF OPTICAL ROTEL DIGITAL SURROUND SOUND PROCESSOR MODEL NO RSP 975 POWER CONSUMPTION 22W RSP 975 SMALL SMALL SMALL LARGE SWITCHED 800W MAX VIDEO 3 VIDEO 4 FRONT REAR CENTER AUX VIDEO 1 AVIS RISQUE DE ELECTRIQUE NE PAS OUVRIR WARNING To REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE SUB L output R D L DTS DECODER RDA 985 Figure 2 Wiring Connections with Second Decoder DVD PLAYER AUDIO OUTPUT VIDEO OUTPUT S VIDEO DIGITAL OUT COMPOSITE ROTEL RDA 985 DTS DECODER WARNING TO REDUCE THE RISK OF FIRE CAUTION FRONT REAR ROTEL DIGITAL OR ELECTRICAL SHOCK DO NOT EXPOSE DTS DECODER THIS EQUIPMENT TO RAIN OR MOISTURE MODEL NO 985 CENTER RISQUE DE ELECTRIOUE NE POWER CONSUMPTION 10W OPTI COAX SUBWOOFER RDA 985 OUTPUT oaa LL D DOLBY DIGITAL DECODER FRONT REAR CENTER OUTPUT 5 1 CH SURROUND SOUND PROCESSOR 5 SURROUND HI PASS FRONT 55 CENTER MODE WARNING To REDUCE THE RISK OF FIRE PHANT OR ELECTRICAL SHOCK DO NOT EXPOSE kad FN HORE NORMAL SWITCHED AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR THIS EQUIPMENT TO RAIN OR MOISTURE m u 500W NORMAL NONE LARGE THX CENTER SPEAKER OUTPUT TV M
4. ONITOR S VIDEO INPUT S VIDEO OUTPUT OUTPUT 08555 ROTEL RCA SURROUND SOUND PROCESSOR OUT MODEL RSP 980 m POWER CONSUMPTION 22W TAPE MONITORY ZONE 2Y pponr rea CENTER RSP 980 AUDIO PREOUT O0 SUBWOOFER REMOTE EXT Getting Started AC Power and Control Digital Signal Connections Analog Signal Connections Specifications Contents A Few Precautions Placement AC Power Input Power Switch and Power Indicator Digital Inputs and Digital Input Selector Switch Coaxial Digital Output DTS Indicator and Signal Indicator 25 pin Analog Output D RCA Analog Outputs Q 25 pin Analog Input Q BB PF BP BR BR BW WwW Ww Getting Started Thank you for purchasing the Rotel RDA 985 DTS Decoder The RDA 985 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 985 accepts an encoded DTS digital signal decodes it and sends six discrete analog surround sound audio signals to the 5 1 channel input on a surround sound processor or other system controller With its premium compo nents Balanced Design and robust construction the RDA 985 will provide years of enjoyment in your audio video system The RDA 985 is simple to operate Other than a power switch there are no front panel controls or switches The unit sense
5. ection and necessary repairs Read all the instructions before connecting or operating the RDA 985 Keep this manual so you can refer to these safety instructions Heed all warnings and safety information in these instructions and on the product itself Follow all operating instructions Clean the RDA 985 only with a dry cloth or a vacuum cleaner Keep the ventilation inlets on the unit unobstructed For example do not place the unit on a bed sofa rug or similar surface that could block the ventilation slots If the RDA 985 is placed in a bookcase or cabinet there must be suffi cient clearance around the unit and ventilation of the cabinet to allow proper cooling Keep the RDA 985 away from radiators heat registers stoves or any other appliance that produces heat The RDA 985 must be connected to a power supply only of the type and voltage specified on the rear panel of the unit Connect the RDA 985 to the power outlet only with the supplied 2 pin polarized power supply cable or an exact equivalent Do not modify the supplied cable in any way Do not attempt to defeat grounding and or polarization provisions The cable should be connected to a 2 pin polarized wall outlet matching the wide blade of the plug to the wide slot of the receptacle Do not use extension cords Do not route the power cord where it will be crushed pinched bent at severe angles exposed to heat or damaged in any way Pay particular attention to the powe
6. ency Response 1 dB 15Hz 20kHz Analog Inputs 1 DB 25 Digital Inputs 1 coaxial 1 optical Digital Input Impedance 75 Ohms Analog Outputs 1 DB 25 6 RCA Output Impedance 1 KOhms Power Requirements 115 Volts 60 Hz or 230 Volts 50 Hz Power Consumption 30 Watts Dimensions W x H x D 440 x 73 x 270 mm 17 8 x 27 8 105 8 Weight net 5 3 kg 11 7 Ib 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 985 DTS DECODER The Rotel Company Ltd 10 10 Shinsen Cho Shibuya Ku Tokyo 150 0045 Japan Phone 81 3 5458 5325 81 3 5458 5310 Rotel of America 54 Concord Street North Reading MA 01864 2699 USA Phone 978 664 3820 978 664 4109 Rotel Deutschland Kleine Heide 12 D 33790 Halle Westf Germany Phone 05201 87170 Fax 05201 73370 082 OMRDA 985 051298
7. n to unplug your RDA 985 as well as other audio and video compo nents while you are away D L DTS DECODER RDA 985 Power Switch and Power Indicator The power switch is located on the front panel of your RDA 985 digital decoder To turn the unit on push the switch in The LED in dicator above the switch will light indicating that the unit is turned on To turn the RDA 985 off push the button again and re turn it to the out position Digital Signal Connections The RDA 985 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 Digital Inputs and The RDA 985 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 Digital Input Selector Switch 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 985
8. o LEFT FRONT input on the surround processor etc 25 pin Analog Input In many systems the RDA 985 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 985 for DTS signals and a separate Dolby Digital de coder To simplify the wiring of such a system the RDA 985 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 985 to be sent on to the surround processor The RDA 985 does not have to be turned on for this pass through connection to work 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 985 outputs If no DTS signal is sensed at the digital inputs the signal at the analog inputs is passed through to the outputs 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 RDA 985 Specifications Total Harmonic Distortion front 1 KHz lt 0 03 Frequ
9. ons The RDA 985 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 985 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 25 pin Analog Output 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 RCA Analog Outputs The RDA 985 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 985 t
10. 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 985 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 AC Power and Control AC Power Input Your RDA 985 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 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 985 exposes you to dangerous voltages Consult a qualified service person or the Rotel factory service department for information The RDA 985 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 985 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 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 precautio
11. r cord at the plug and where it exits the back of the unit The power cord should be unplugged from the wall outlet if the unit is to be left unused for a long period of time Immediately stop using the RDA 985 and have it inspected and or serviced by a qualified service agency if The power supply cord or plug has been damaged Objects have fallen into or liquid has been spilled into the unit The unit has been exposed to rain The unit shows signs of improper operation The unit has been dropped or damaged any way Place the RDA 985 on a fixed level surface strong enough to support its weight Do not place the RDA 985 on a moveable cart that could tip over RDA 985 Figure 1 Controls and Connections ROTEL DTS DECODER RDA 985 SIGNAL POWER DTS O ROTEL DTS DECODER MODEL NO RDA 985 POWER CONSUMPTION 10W WARNING TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK DO NOT EXPOSE DIGITAL OPTI COAX OXO E RDA 985 oeo oo OUTPUT INPUT 5 1 CH 5 Figure 2 Basic Wiring Connections DVD PLAYER DIGITAL AUDIO OUTPUT VIDEO OUTPUT OUT S VIDEO COMPOSITE ROTEL RDA 985 DTS DECODER WARNING TO REDUCE THE RISK OF FIRE ROTEL OR ELECTRICAL SHOCK DO NOT EXPOSE Pa an ng MODEL RDA 985 POWER CONSUMPTION 10W DIGITAL THIS EQUIPMENT TO RAIN OR MOISTURE RDA 985 COAX OOOOOOOOOOOOO SUBWOOFER 000000
12. s when a DTS signal is present and engages the decoding circuitry automatically The RDA 985 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 985 When a DTS signal is present at the digital input the RDA 985 will decode it and send the signal to the outputs When no DTS signal is present the RDA 985 will pass the signal from the analog inputs to the outputs RDA 985 A Few Precautions Please read this manual carefully In addition to installation and operating instructions it provides valuable information on various RDA 985 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 Save the RDA 985 shipping carton and all enclosed packing mate rial for future use Shipping or moving the RDA 985 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 Placement Use common sense when placing the RDA 985 in a cabinet
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