Rotel-RDA-985-OM 电路图 维修手册.pdf

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1、RDA-985 DTS DECODER Owners Manual 5.1 CH WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. INOUT OUTPUTINPUT FRONTREAR CENTER SUBWOOFER L R DTS DECODER MODEL NO. RDA-985 POWER CONSUMPTION: 10W RDA-985 IN OPTICOAX DIGITAL DTS DECODER RDA-985 POW

2、ERDTSSIGNAL CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUENE PAS OUVRIR RadioFans.CN 收音机爱 好者资料库 DTS DECODER RDA-985 CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT. INSERT FULLY. APPLICABLE FOR USA, CANADA OR WHERE APPROVED FOR THE USAGE ATTENTIO

3、N: 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. CAUTION 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

4、 SERVICING TO QUALIFIED SERVICE PERSONNEL. 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 encl

5、osure. 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 inspection and necessary repairs. Read all the instructions before connecting or operating the RDA-985. Keep th

6、is 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

7、 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 r

8、adiators, 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 e

9、xact 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

10、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 power 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 unu

11、sed 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 sho

12、ws signs of improper operation The unit has been dropped or damaged in 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. This symbol is to alert the user to the presence of uninsulated dangerous v

13、oltages inside the products 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. RadioFans.CN 收音机爱 好者资料库 RDA-985 Figure 1 Controls and Connections

14、 1 5.1 CH WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. INOUT OUTPUTINPUT FRONTREAR CENTER SUBWOOFER L R DTS DECODER MODEL NO. RDA-985 POWER CONSUMPTION: 10W RDA-985 IN OPTICOAX DIGITAL DTS DECODER RDA-985 POWERDTSSIGNAL CAUTION RISK OF ELE

15、CTRIC SHOCK DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUENE PAS OUVRIR 1 12 234 567811109 Figure 2 Basic Wiring Connections AUX 5.1 CH INPUT WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. MONITOR TV DIGITAL INPUT FRONTREARCENTER SUB L R POWER

16、OUTPUT TUNERCDTAPEVIDEO 1VIDEO 2VIDEO 3 INOUT VIDEO 4 INOUTINOUTINOUT SPEAKER CONFIGURATION CENTER SMALL NONE LARGE FRONT SMALL LARGE REAR SMALL LARGE SUB ON OFF DIGITAL SURROUND SOUND PROCESSOR MODEL NO. RSP-975 POWER CONSUMPTION: 22W RSP-975 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS: RISQUE

17、DE CHOC ELECTRIQUENE PAS OUVRIR SWITCHED 800W MAX LDRFOPTICAL COAXIAL COAX 1 COAX 2 DVD 5.1 CH WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. INOUT OUTPUTINPUT FRONTREAR CENTER SUBWOOFER L R DTS DECODER MODEL NO. RDA-985 POWER CONSUMPTION: 1

18、0W RDA-985 IN OPTICOAX DIGITAL CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUENE PAS OUVRIR S-VIDEO COMPOSITE LEFT RIGHT VIDEO OUTPUTAUDIO OUTPUT DIGITAL OUT DVD PLAYER ROTEL RDA-985 DTS DECODER SURROUND SOUND PROCESSOR RadioFans.CN 收音机爱 好者资料库 DTS DECODER RDA-985 Figure 2

19、Wiring Connections with Second Decoder 5.1 CH WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. INOUT OUTPUTINPUT FRONTREAR CENTER SUBWOOFER L R DTS DECODER MODEL NO. RDA-985 POWER CONSUMPTION: 10W RDA-985 IN OPTICOAX DIGITAL CAUTION RISK OF EL

20、ECTRIC SHOCK DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUENE PAS OUVRIR S-VIDEO COMPOSITE LEFT RIGHT VIDEO OUTPUTAUDIO OUTPUT DIGITAL OUT DVD PLAYER 5.1 CH INOUT OUTPUT FRONTREAR CENTER SUBWOOFER L R IN OPTICOAX DIGITAL SURROUND SOUND PROCESSOR MODEL NO. RSP-980 POWER CONSUMPTION: 22W RSP-980 1 VIDEO

21、23 TUNER DBSLD 5.1 CH INPUT 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 AVIS: RISQUE DE CHOC ELECTRIQUENE PAS OUVRIR SURROUND HI-PASSFRONT HI-PASS OFFONOFFONNORMALWIDE NORMALLARGE/THX CENTER MODE

22、 PHANTOM NONE CENTER SPEAKER AUDIO PREOUT TV MONITOR OUTPUT OUTPUTINPUTS-VIDEO INPUTS-VIDEO OUTPUT VIDEO 3 RCA OUT SC 123123 TUNER DBS LD CD1 VIDEO 23 CS TAPE MONITOR IN OUT ZONE 2 OUT FRONTREARCENTER SUBWOOFER REMOTE EXT INOUT VIDEO L R SWITCHED 500W MAX POWER ROTEL RDA-985 DTS DECODER SURROUND SOU

23、ND PROCESSOR DOLBY DIGITAL DECODER 2 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 performanc

24、e 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 a

25、nything 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

26、when placing the RDA-985 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-985. Avoid placing the unit where it may be subject to excessive heat such as on top of a large power amplifier or nea

27、r 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 12 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 A

28、C 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 dangerou

29、s 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 swi

30、tch 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 precaution to un

31、plug your RDA-985 (as well as other audio and video compo- nents) while you are away. Contents Getting Started _ 3 A Few Precautions3 Placement3 AC Power and Control _ 3 AC Power Input 123 Power Switch 1 and Power Indicator 24 Digital Signal Connections _ 4 Digital Inputs 5 and 74 Digital Input Sele

32、ctor Switch 64 Coaxial Digital Output 84 DTS Indicator 3 and Signal Indicator 44 Analog Signal Connections _ 4 25-pin Analog Output 104 RCA Analog Outputs 114 25-pin Analog Input 94 Specifications _ 5 Getting Started Thank you for purchasing the Rotel RDA-985 DTS Decoder. The RDA-985 is a high-quali

33、ty 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 proce

34、ssor 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

35、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 connec

36、ted 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. 3 DTS DECODER RDA-985 Power Switch 1 and P

37、ower Indicator 2 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

38、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 stre

39、am to another processor, such as a Dolby Digital decoder. Digital Inputs 5 and 7 The RDA-985s 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 co

40、nnection 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 6 A two-position switch located between the digital inputs selects the appropriate

41、 digital input connector, either optical or coax. If you connect your video disc player to the RDA-985s 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 8 The digital output

42、 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-985 and the re

43、sulting 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 D

44、igital 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 processors digital input, if it has built-in Dolby Digital decoding. D

45、TS Indicator 3 and Signal Indicator 4 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 i

46、f that digital signal is DTS encoded. Analog Signal Connections 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.

47、 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 10 The mos

48、t 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, thi

49、s 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 11 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