Rotel-RA-985BX-OM 电路图 维修手册.pdf

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1、RA-985BX STEREO INTEGRATED AMPLIFIER AMPLIFICATEUR INTGR STROPHONIQUE STEREO-VOLLVERSTRKER AMPLIFICATORE INTEGRATO AMPLIFICADOR INTEGRADO GENTEGREERDE STEREO VERSTERKER Owners Manual Manuel dutilisation Bedienungsanleitung Manuale di Istruzioni Manual de Instrucciones Gebruiksaanwijzing L R STEREO I

2、NTEGRATED AMPLIFIER RA-985BX STANDBYPROTECTION SPEAKERSBASSTREBLETONE REMOTE SENSOR OFF A B A+B ON OFF VOLUME BALANCE ZONE RECORDINGLISTENING TAPE 2 TAPE 1 TUNER OFF CD AUX 1 AUX 2TAPE 2 TAPE 1 CDTUNER AUX 1 AUX 2 RadioFans.CN 收音机爱 好者资料库 CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG T

3、O WIDE SLOT. INSERT FULLY. APPLICABLE FOR USA, CANADA OR WHERE APPROVED FOR THE USAGE 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. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO R

4、EDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER 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 electrical shock, d

5、o not expose the unit 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 in- spection and n

6、ecessary repairs. Read all the instructions before connecting or operating the unit. 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 unit only with a

7、 dry cloth or a vacuum cleaner. You must allow 10cm, or 4 inches, of unobstructed clearance around the unit. Do not place the unit on a bed, sofa, rug, or similar surface that could block the ventilation slots. If the unit is placed in a bookcase or cabinet, there must be sufficient clearance around

8、 the unit and ventilation of the cabinet to allow proper cooling. Keep the unit away from radiators, heat registers, stoves, or any other appliance that produces heat. The unit must be connected to a power supply only of the type and voltage specified on the rear panel of the unit. Connect the unit

9、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 blad

10、e 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 power cord at the plug and where it exits the back of the unit.

11、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 unit 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, or liquid h

12、as 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 in any way Place the unit on a fixed, level surface strong enough to support its weight. Do not place the unit on a moveable cart that could tip over. Th

13、is symbol is to alert the user to the presence of uninsulated dangerous voltages 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 p

14、roduct. RadioFans.CN 收音机爱 好者资料库 3 Figure 1:Controls and Connections Commandes et branchements Bedienelemente und Anschlsse Collegamenti dingresso Controles y Conexiones De bedieningsorganen en de aansluitingen L R STEREO INTEGRATED AMPLIFIER RA-985BX STANDBYPROTECTION SPEAKERSBASSTREBLETONE REMOTE S

15、ENSOR OFF A B A+B ON OFF VOLUME BALANCE ZONE RECORDINGLISTENING TAPE 2 TAPE 1 TUNER OFF CD AUX 1 AUX 2TAPE 2 TAPE 1 CDTUNER AUX 1 AUX 2 1 5 234 678910111214 13 North American version above / European version below CD TUNER AUX 1 AUX 2 INTEGRATED AMPLIFIER MODEL NO. RA-985BX POWER CONSUMPTION: 400W S

16、WITCHED 400W MAX POWER SERIAL NO. LEFTRIGHT RIGHT LEFT IN TAPE 1 OUT IN TAPE 2 OUT VAR. OUT (ZONE 2) SPEAKERS A PRE OUT MAIN IN LEFT RIGHT INOUTOUTOUT REMOTE SENSOR EXTENSION LEFTRIGHTLEFTRIGHT SPEAKERS B CASSETTE REMOTE ROTEL ELECTRONICS CO., LTD. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN SPEAKER

17、IMPEDANCE A OR B 4 OHMS MIN. A AND B 8 OHMS MIN. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE RIGHT LEFT SWITCHED 400W MAX 1516 1718 19202122 2324 RadioFans.CN 收音机爱 好者资料库 4 ROTEL RA-985BX CD PLAYER CD TUNER AUX 1 AUX 2 INTEGRATED AMPLIFIER

18、 MODEL NO. RA-985BX POWER CONSUMPTION: 400W SWITCHED 400W MAX POWER SERIAL NO. LEFTRIGHT RIGHT LEFT IN TAPE 1 OUT IN TAPE 2 OUT VAR. OUT (ZONE 2) SPEAKERS A PRE OUT MAIN IN LEFT RIGHT INOUTOUTOUT REMOTE SENSOR EXTENSION LEFTRIGHTLEFTRIGHT SPEAKERS B CASSETTE REMOTE ROTEL ELECTRONICS CO., LTD. CAUTIO

19、N RISK OF ELECTRIC SHOCK DO NOT OPEN SPEAKER IMPEDANCE A OR B 4 OHMS MIN. A AND B 8 OHMS MIN. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE RECORDER R L INPUT R L OUTPUT R L OUTPUT SPEAKERS RIGHT LEFT Figure 2:Signal Input and Speaker Outpu

20、t Connection Branchements des entres et sorties des enceintes acoustiques Eingangssignal- und Lautsprecherausgangsanschlsse Collegamenti duscita del registratore Entrada de Seal / Conexin de Salida a las Cajas Acsticas De in- en uitgangsverbindingen 5 ROTEL RA-985BX CD TUNER AUX 1 AUX 2 INTEGRATED A

21、MPLIFIER MODEL NO. RA-985BX POWER CONSUMPTION: 400W SWITCHED 400W MAX POWER SERIAL NO. LEFTRIGHT RIGHT LEFT IN TAPE 1 OUT IN TAPE 2 OUT VAR. OUT (ZONE 2) SPEAKERS A PRE OUT MAIN IN LEFT RIGHT IN REMOTE OUTOUTOUT SENSOR EXTENSION LEFTRIGHTLEFTRIGHT SPEAKERS B CASSETTE REMOTE ROTEL ELECTRONICS CO., LT

22、D. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN SPEAKER IMPEDANCE A OR B 4 OHMS MIN. A AND B 8 OHMS MIN. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURERIGHT LEFT LEFTRIGHT SPEAKERS WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT

23、 EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUENE PAS OUVRIR SPEAKER IMPEDANCE STEREO 4 OHMS MINIMUM BRIDGED 8 OHMS MINIMUMPOWER AMPLIFIER MODEL NO. RB-971 POWER CONSUMPTION: 250W SERIAL NO. LEFT INPUTRIGHT INPUT ROTEL RB-971 SPE

24、AKERS Figure 3:Second Zone Output Connection Branchements pour fonctionnement en pice secondaire Zone 2 Ausgangsanschlsse fr die 2. Zone Collegamenti duscita per la Seconda Zona Conexiones de Salida para la Segunda Zona De uitgangsverbindingen voor de tweede zone RA-985BX 6 About Rotel A family whos

25、e passionate interest in music led them to manufac- ture high fidelity components of uncompromising quality founded Rotel over 30 years ago. Through the years that passion has re- mained undiminished and the family goal of providing exceptional value for audiophiles and music lovers, regardless of t

26、heir budget, is shared by all Rotel employees. The engineers work as a close team, listening to, and fine tuning each new product until it reaches their exacting musical stan- dards. They are free to choose components from around the world in order to make that product the best they can. You are lik

27、ely to find capacitors from the United Kingdom and Germany, semi conductors from Japan or the United States, while toroidal power transformers are manufactured in Rotels own factory. Rotels reputation for excellence has been earned through hun- dreds of good reviews and awards from the most respecte

28、d re- viewers in the industry, who listen to music every day. Their comments keep the company true to its goal the pursuit of equipment that is musical, reliable and affordable. All of us at Rotel thank you for buying this product and hope it will bring you many hours of enjoyment. Getting Started T

29、hank you for purchasing the Rotel RA-985BX Stereo Integrated Amplifier. When used in a high-quality music audio system, it will provide years of musical enjoyment. The RA-985BX is a full featured, high performance component. All aspects of the design have been optimized to retain the full dy- namic

30、range and subtle nuances of your music. The RA-985BX has a highly regulated power supply incorporating a Rotel custom-de- signed toroidal power transformer and custom-made slit foil ca- pacitors. This low impedance power supply has ample power reserves, which enables the RA-985BX to easily reproduce

31、 the most demanding audio signals. This type of design is more expen- sive to manufacture, but it is better for the music. The printed circuit boards (PCB) are designed with Symmetrical Circuit Traces. This insures that the precise timing of the music is maintained and faithfully recreated. The RA-9

32、85BX circuitry uses metal film resistors and polystyrene or polypropylene capacitors in important signal paths. All aspects of this design have been ex- amined with the final goal being faithful reproduction of music. Contents (circled numbers refer to illustration) About Rotel _ 1 Getting Started _

33、 1 A Few Precautions2 Placement2 Cables2 AC Power and Control _ 2 AC Power Input 242 Power/Standby Switch 1 and Power Indicator 23 Auxiliary Power Outputs 233 Input Signal Connections 15_ 3 Recorder Connections 16_ 3 Second Zone Output Connection 17_ 3 Preamp/Power Amp Jumpers 18_ 3 Cassette Remote

34、Connector 19_ 3 Remote Sensor Extension System 20_ 4 Speaker Outputs 21and 22_ 4 Speaker Selection4 Speaker Wire Selection4 Polarity and Phasing4 Speaker Connection4 Front Panel Controls _ 4 Volume Control 104 Balance Control 114 Tone Defeat Switch 94 Bass Control 7 and Treble Control 84 Speaker Sel

35、ector Switch 55 Listening Selector 145 Recording Selector 125 Phones Output 65 Remote Sensor 45 Second Zone Operation _ 5 Rec/Zone Button 28 and Zone Indicator 135 Source Selector Buttons 275 Zone Volume Buttons 315 RR-927 Remote Control _ 6 Reprograming6 Other Remote Control Functions _ 6 Standby P

36、ower Buttons 256 Mute Button 266 Tuner Control Buttons 296 Numeric Direct Access Buttons 306 Volume Control Buttons 326 Cassette Recorder Control Buttons 356 Surround Sound Processor Buttons 346 CD Player Control Buttons 336 Protection Circuitry 3_ 7 Troubleshooting _ 7 Standby Power Indicator Is No

37、t Lit7 Fuse Replacement7 No Sound7 Protection Indicator Is Lit7 Specifications _ 52 STEREO INTEGRATED AMPLIFIER RA-985BX 7 English In addition the RA-985BX has several features that enhance its ease of operation and its system configuration flexibility. A full function remote control is provided tha

38、t can operate several other Rotel tuners and cassette decks in addition to the RA-985BX. An IR remote control signal input/output system is provided. This fea- ture, when used in conjunction with Xantech brand Video Link IR signal pick ups and repeaters (sold separately by custom sys- tem installers

39、), enables the RA-985BX to pick up IR remote control signals and distribute them to other components. A preamp/power amp jumper set is provided that makes it easy to connect external components, such as surround sound processors. The unique Second Zone output system (when used with an additional pow

40、er amplifier and speakers) lets the RA-985BX provide sound to an- other part of your home. You can even listen to a different signal source from the one being played by the main system. The main functions of the RA-985BX are easy to install and use. If you have experience with other stereo systems,

41、you shouldnt find anything perplexing. Simply plug in the associated components and enjoy. A Few Precautions Please read this manual carefully. It provides information on how to incorporate the RA-985BX into your system as well as informa- tion that will help you get optimum sound performance. Pleas

42、e contact your authorized Rotel dealer for answers to any questions you might have. In addition, all of us at Rotel welcome your ques- tions and comments. Save the RA-985BX shipping carton and all enclosed packing ma- terial for future use. Shipping or moving the RA-985BX in anything other than the

43、original packing material may result in severe dam- age to your amplifier. Fill out and send in the owners registration card packed with the RA-985BX. Also be sure to keep the original sales receipt. It is your best record of the date of purchase, which you will need in the event warranty service is

44、 ever required. Placement Like all audio components that handle low-level signals, the RA-985BX can be affected by its environment. Do not stack the RA-985BX on top of a power amplifier. This will minimize the chance it will pick up hum or interference. The RA-985BX generates heat as part of its nor

45、mal operation. The heat sinks and ventilation openings in the amplifier are designed to dissipate this heat. The ventilation slots in the top cover must be open. There should be 10 cm (4 inches) of clearance around the chassis, and reasonable airflow through the installation loca- tion, to prevent t

46、he amplifier from overheating. Remember the weight of the amplifier when you select an installa- tion location. Make sure that the shelf or cabinet can support its considerable bulk. We recommend installing the RA-985BX in furni- ture designed to house audio components. Such furniture is de- signed

47、to reduce or suppress vibration which can adversely affect sound quality. Ask your authorized Rotel dealer for advice about component furniture and proper installation of audio components. Cables Be sure to keep the power cords, digital signal cables and regular audio signal cables in your installat

48、ion away from each other. This will minimize the chance of the regular audio signal cables pick- ing up noise or interference from the power cords or digital cables. Using only high quality, shielded cables will also help to prevent noise or interference from degrading the sound quality of your system. If you have any questions see your authorized Rotel dealer for