Rotel-RMB-1076-OM 电路图 维修手册.pdf

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1、Owners Manual Manuel dutilisation Bedienungsanleitung Manual de Instrucciones Gebruiksaanwijzing Manuale di Istruzioni Instruktionsbok fl fl RMB-1076 Six-Channel Power Amplifi er Amplifi cateur de puissance six canaux Sechskanal-Endstufe Etapa de Potencia de Seis Canales 6-kanalen eindversterker Fin

2、ale di potenza a sei canali 6-kanals slutsteg 6- RadioFans.CN 收音机爱 好者资料库 2 RMB-1076 Six Channel Power Amplifi er WARNING: There are no user serviceable parts inside. Refer all servicing to qualifi ed service personnel. WARNING: To reduce the risk of fi re or electric shock, do not expose the unit to

3、 moisture or water. Do not al- low 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 qualifi ed service person for inspection and necessary repairs. Read

4、all the instructions before connecting or operating the component. 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 enclosure only with a dry cloth or

5、 a vacuum cleaner. You must allow 10 cm 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 component is placed in a bookcase or cabinet, there must be ventilation of the cabinet to allow

6、proper cooling. Keep the component 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 specifi ed on the rear panel of the unit. Connect the component to the power outlet only with the suppl

7、ied 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. 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

8、 in any way. Pay par- ticular 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 unused for a long period of time. Immediately stop using the component and have it inspected and/or service

9、d by a qualifi ed service agency if: The power supply cord or plug has been damaged. Objects have fallen 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 in any way. Please use Class 2 Wiring

10、 when connecting the speaker terminals of the unit to ensure proper insulation and minimize the risk of electrical shock. Place the unit on a fi xed, level surface strong enough to support its weight. Do not place it on a moveable cart that could tip over. This symbol means that this unit is double

11、insulated. An earth or ground connection is not required. Rotel products are designed to comply with international directives on the Restriction of Hazardous Substances (RoHS) in electrical and electronic equipment and the disposal of Waste Electrical and Electronic Equipment (WEEE). The crossed whe

12、elie bin symbol indicates compliance and that the products must be appropriately recycled or processed in accordance with these directives. RadioFans.CN 收音机爱 好者资料库 3English 1: Controls and Connections Commandes et branchements Bedienelemente und Anschlsse Controles y Conexiones De bedieningsorganen

13、en de aansluitingen Pannello frontale e posteriore Kontroller och anslutningar fl RadioFans.CN 收音机爱 好者资料库 4 RMB-1076 Six Channel Power Amplifi er 2: Stereo Connections Branchements en entres et sorties par paires stro Anschlussdiagramm (Stereo-Modus) Conexiones de Entrada y de Salida De in- en uitga

14、ngsverbindingen Collegamenti Stereo Stereoanslutningar REAR 5English About Rotel A family whose passionate interest in music led them to manufacture high fi delity components of uncompromising quality founded Rotel over 45 years ago. Over the years that passion has remained undiminished and the goal

15、 of providing exceptional value for audiophiles and music lovers regardless of their budget, is shared by all Rotel employees. The engineers work as a close team, listening to, and fi ne tuning each new product until it reaches their exacting musical standards. They are free to choose components fro

16、m around the world in order to make that product the best they can. You are likely to fi nd capacitors from the United Kingdom and Germany, semicon- ductors from Japan or the United States, and toroidal power transformers manufactured in Rotels own factory. Rotels reputation for excellence has been

17、earned through hundreds of good reviews and awards from the most respected review- ers 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 prod

18、uct and hope it will bring you many hours of enjoyment. Getting Started Thank you for purchasing the Rotel RMB-1076 Six-Channel Power Amplifi er. When used in a high-quality music or home theater system, your Rotel amplifier will provide years of musical enjoyment. The RMB-1076 is a sophisticated si

19、x-channel power amplifi er. Discrete output devices, a switching power supply, premium components, and Rotels Balanced Design ensure superb sound quality. High current capability allows the RMB-1076 to drive diffi cult speaker loads with ease. Operating Features Three pair of amplifi er channels. Us

20、er selectable power on/off confi guration: manual, automatic signal sensing, or con- trolled by remote 12 volt trigger signal. Front panel input level controls. Protection circuitry with front panel indica- tor. Signal link output to pass-through the input signal to another component. A Few Precauti

21、ons Please read this manual carefully. In addition to installation and operating instructions, it provides information on various RMB-1076 system confi gurations. Please contact your authorized Rotel dealer for answers to any questions you might have. In addition, all of us at Rotel welcome your que

22、stions and comments. Save the RMB-1076 shipping carton and packing material for future use. Shipping or moving the RMB-1076 in anything other than the original packing material may result in severe damage to your amplifi er. Be sure to keep the original sales receipt. It is your best record of the d

23、ate of purchase, which you will need in the event warranty service is ever required. Placement The RMB-1076 generates heat as part of its normal operation. The heat sinks and ventila- tion openings in the amplifi er are designed to dissipate this heat. The ventilation slots in the top cover must be

24、unobstructed. There should be 10 cm (4 inches) of clearance around the chassis, and reasonable airfl ow through the installation location, to prevent the amplifi er from overheating. Likewise, remember the weight of the amplifi er when you select an installation location. Make sure that the shelf or

25、 cabinet can support its weight. Contents Figure 1: Controls and Connections 3 Figure 2: Stereo Connections 4 About Rotel .5 Getting Started .5 Operating Features 5 A Few Precautions 5 Placement 5 AC Power and Control .6 AC Power Input - 6 Power Switch and Indicator 12 6 Auto Turn On/Off Mode Select

26、or 9 6 +12V Trigger Input and Output 8 6 Protection Indicator 3 6 Stereo Mode Selection .6 Input Select Switches 6 6 Signal Connections .7 RCA Inputs 5 7 Input Level Controls 4 7 Signal Output Link 7 7 Speakers .7 Speaker Selection 7 Speaker Wire Selection 7 Polarity and Phasing 7 Speaker Connection

27、s 0 7 Specifi cations .8 Troubleshooting .8 Front Panel Power Indicator Is Not Lit 8 No Sound 8 Protection Indicator Is Lit 8 Specifi cations .8 6 RMB-1076 Six Channel Power Amplifi er AC Power and Control AC Power Input - The RMB-1076 is supplied with the proper AC power cord. Use only this cord or

28、 an exact equivalent. Do not use an extension cord. A heavy duty multi-tap power outlet strip may be used, but only if it is rated to handle the current demand of the RMB-1076. Be sure the Power Switch on the front panel of the RMB-1076 is turned off. Then, plug one end of the cord into the AC power

29、 connector - on the back panel of the amplifi er. Plug the other end into an appropriate AC outlet. Your RMB-1076 is confi gured at the factory for the proper AC line voltage in the country where you purchased it (USA: 120 volts/ 60 Hz, Europe: 230 volts/50 Hz). The AC line confi guration is noted o

30、n a label on the back panel. NOTE: Should you move your RMB-1076 to another country, it is possible to confi g- ure your amplifi er for use on a different line voltage. Do not attempt to perform this conversion yourself. Opening the enclosure of the RMB-1076 exposes you to danger- ous voltages. Cons

31、ult a qualifi ed technician or the Rotel factory service department for information. If you are going to be away from home for an extended period of time, it is a sensible precaution to unplug your amplifi er. Power Switch and Indicator 12 The Power Switch is located on the front panel. To turn the

32、amplifi er on (or to activate either of the optional automatic power-on modes), push the switch in. The LED indicator above the switch will light, indicating that the amplifi er is turned on. To turn the amplifi er off, push the button again and return it to the out position. Auto Turn On/Off Mode S

33、elector 9 The RMB-1076 provides three options for manual or automatic power on/off operation. These modes are selectable using a three-posi- tion slide switch on the back panel: With the switch in the OFF position, the amplifi er is turned on or off manually us- ing the front panel power switch. Use

34、 this mode if you are using a switched AC outlet to control power to the amplifi er. With the switch in the SIGNAL SENSING position, the amplifi er turns on automatically when a signal is sensed at the inputs. The amplifi er will go into standby mode with no signal. The front panel power switch over

35、rides this function. It must be ON for the signal sensing to work. Turning the switch OFF cuts power to the amplifi er, regardless of whether or not a signal is present. With the switch in the 12V TRIG. position, the amplifi er is turned on automatically when a 12 volt trigger signal is applied to t

36、he 3.5mm jack to the left of the switch. The amplifi er will go into standby mode with no signal if the +12 volt signal is not present. The front panel POWER SWITCH overrides this function. It must be ON for the +12V trigger to work. Turning the switch OFF cuts power to the amplifi er, regardless of

37、 whether or not a trigger signal is present. +12V Trigger Input and Output 8 The jack labeled IN is for connecting the 3.5mm Plug/Cable carrying a +12 volt trigger signal to turn the amplifi er on and off. To use this feature the adjacent slide switch must be placed to the left position (see previou

38、s section). This input accepts any control signal (AC or DC) ranging from 3 volts to 30 volts. The jack labeled OUT is for connecting another 3.5mm plug/cable to provide a 12V trigger signal to other components. The 12V output signal is available whenever a +12 volt trigger signal is applied to the

39、IN connector. Protection Indicator 3 Thermal and protection circuits protect the am- plifi er against potential damage in the event of extreme or faulty operating conditions. Unlike many designs, the RMB-1076s protection cir- cuit is independent of the audio signal and has no impact on sonic perform

40、ance. Instead, the protection circuit monitors the temperature of the output devices and shuts down the amplifi er if safe limits are exceeded. In addition, the RMB-1076 includes over- current protection which operates only when load impedances drop too low. This protection is independent for each o

41、f the three pair of channels and is indicated by the front panel PROTECTION LED. Should a faulty condition arise, the amplifi er channel at fault will stop playing and the PRO- TECTION LED on the front panel will light. If this happens, turn the amplifi er off, let it cool down for several minutes,

42、and attempt to identify and correct the problem. When you turn the amplifi er back on, the protection circuit will automatically reset and the PROTECTION LED should go out. In most cases, the protection circuitry activates because of a fault condition such as shorted speaker wires, or inadequate ven

43、tilation leading to an overheating condition. In very rare cases, highly reactive or extremely low impedance speaker loads could cause the protection circuit to engage. Stereo Mode Selection It is useful to think of the RMB-1076 as three stereo amplifi ers in a single chassis. Stereo mode: Conventio

44、nal 2-channel stereo operation for a pair of amplifi er channels. Minimum speaker load: 4 ohms. Input Select Switches 6 A rear panel switch adjacent to the inputs can select LINK to be On or Off for the fi rst pair of amplifi er channels. For Stereo mode: Slide the switch as- sociated with the desir

45、ed pair of amplifi er channels to the right or OFF position. Use both LEFT and RIGHT input connectors, and connect one speaker to each pair of speaker connectors. NOTE: For groups “B” and/or “C”, you can also place the INPUT SELECT switch to the ON position for Stereo mode. This routes the input sig

46、nals from the “A” group 7English to the inputs for that pair of amplifi er chan- nels. Signal Connections The RMB-1076 provides standard conventional input connections unbalanced RCA type connections as found on nearly all audio equipment. There is also a pair of SIGNAL OUTPUT LINK connections for p

47、assing the input signal connected to the “A” pair of channels on to another audio component. Additionally, the input signal to the “A” pair of channels can be automatically linked to the inputs for the “B” and/or “C” channels, so that a separate input signal cable is not required for those channels,

48、 for example in large systems where the RMB-1076 is being used to drive multiple pairs of speakers in stereo mode. RCA Inputs 5 See Figure 2 There are two RCA inputs for each of the three pairs of amplifi er channels. These RCA inputs accept audio signals from preamplifi ers or sur- round sound processors. Use high quality audio interconnect cables for best performance. NOTE: You can link the in