Rotel-RMB-1085-OM 电路图 维修手册.pdf

Owners Manual Manuel dutilisation Bedienungsanleitung Manuale di istruzioni Manual de Instrucciones Gebruiksaanwijzing Instruktionsbok ? RMB-1085 Five-Channel Power Amplifi er Amplifi cateur de puissance cinq canaux Fnfkanal-Endstufe Finale di potenza a cinque canali Etapa de Potencia de Cinco Canales 5-kanalen eindversterker 5-kanals slutsteg ? FIVE CHANNEL POWER AMPLIFIER RMB-1 085 POWERPROTECTION RadioFans.CN 收音机爱 好者资料库 2 RMB-1085 Five-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 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 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 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 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 supplied 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 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 serviced by a qualifi ed service agency if: ? ? ? ? ? Please use Class 2 Wiring 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. FIVE CHANNEL POWER AMPLIFIER RMB-1 085 This symbol means that this unit is double 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 wheelie 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 3 1: Controls and Connections Commandes et branchements Bedienelemente und Anschlsse Pannello frontale e posteriore Controles y Conexiones De bedieningsorganen en de aansluitingen Kontroller och anslutningar ? FIVE CHANNEL POWER AMPLIFIER RMB-1 085 POWERPROTECTION ? ? ? ? ? RadioFans.CN 收音机爱 好者资料库 4RMB-1085 2: Input and Output Connections Branchements en entres et sorties Anschlussdiagramm Collegamenti ingressi ed uscite Conexiones de Entrada y de Salida De in- en uitgangsverbindingen In- och utgngar ? FRONT RIGHT SURROUND RIGHT SURROUND LEFT FRONT LEFT CENTER MULTICHANNEL ANALOG OUTPUTS REAR RSUBFRONT RCENTER REAR LFRONT L 5English About Rotel A family whose passionate interest in music led them to manufacture high fi delity components of uncompromising quality founded Rotel over ? has remained undiminished and the goal 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 from 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 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 product and hope it will bring you many hours ? Getting Started Thank you for purchasing the Rotel RMB-1085 Five-Channel Power Amplifi er. When used in a high-quality music or home theater system, your Rotel amplifier will provide years of ? The RMB-1085 is a sophisticated fi ve-channel power amplifi er. Its digital amplifi er circuitry, switching power supply, premium components, and Rotels Balanced Design ensure superb sound quality. High current capability allows the RMB-1085 to drive diffi cult speaker loads with ease. Operating Features ? ? manual, or controlled by remote 12 volt trigger signal. ?- tor. A Few Precautions Please read this manual carefully. In addition to installation and operating instructions, it provides information on various RMB-1085 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 questions and comments. Save the RMB-1085 shipping carton and packing material for future use. Shipping or moving the RMB-1085 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 date of purchase, which you will need in the event warranty service is ever required. Placement The RMB-1085 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 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 cabinet can support its weight. Contents Important Safety Information .2 1: Controls and Connections 3 2: Input and Output 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 ? 6 Turn On/Off Mode Selector ?6 +12V Trigger Input and Output ? 6 Protection Indicator ? .6 Input Signal Connections ? .7 Speakers .7 Speaker Selection 7 Speaker Wire Selection 7 Polarity and Phasing 7 Speaker Connections ?7 Troubleshooting .8 Front Panel Power Indicator Is Not Lit 8 No Sound 8 Protection Indicator Is Lit 8 Specifi cations .8 6 RMB-1085 Five-Channel Power Amplifi er AC Power and Control AC Power Input ? The RMB-1085 is supplied with the proper AC power cord. Use only this cord or 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-1085. Your RMB-1085 will automatically confi gure itself for the proper AC line voltage rating, from 110 volts to 240 volts, at 50/60Hz. No setting is required to match the unit to your local voltage. Plug the supplied cord into the AC INPUT receptacle ? on the back panel of the unit. After all connections have been made, plug the other end into an appropriate AC wall outlet. NOTE: 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 ? The Power Switch is located on the front panel. To turn the 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. Turn On/Off Mode Selector ? The RMB-1085 can be turned on and off manu- ally, or automatically by using its “12V Trigger” ? switch selects which method is used. ? amplifi er is turned on or off manually us- ing the front panel power switch. Use this mode if you are using a switched AC outlet to control power to the amplifi er. ? the amplifi er is turned on automatically when a 12 volt trigger signal is applied to ? ? ? ? amplifi er, regardless of whether or not a trigger signal is present. +12V Trigger Input and Output ? ? ? to turn the amplifi er on and off. To use this ? the 12V TRIG position (see previous section). This input accepts any control signal (AC or DC) ranging from 3 volts to 30 volts. ? 3.5mm plug/cable to provide a 12V trigger signal to other components. The 12V output ? signal is applied to the IN connector. Protection Indicator ? 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-1085s protection cir- cuit is independent of the audio signal and has no impact on sonic performance. 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-1085 includes over-cur- rent protection which operates only when load impedances drop too low. This protection is independent for each of the fi ve channels . Should a faulty condition arise, the amplifi er ?- ? If this happens, turn the amplifi er off, let it cool down for several minutes, and attempt to identify and correct the problem. When you turn the amplifi er back on, the protection circuit ? LED should go out. In most cases, the protection circuitry activates because of a fault condition such as shorted speaker wires, or inadequate ventilation leading to an overheating condition. In very rare cases, highly reactive or extremely low impedance speaker loads could cause the protection circuit to engage. 7English Input Signal Connections ? See Figure 2 The RMB-1085 has standard unbalanced RCA-type input connectors, the type used on nearly all audio equipment. There is an RCA input for each of the fi ve amplifi er channels. These RCA inputs accept audio signals from preamplifi ers or surround sound processors. Use high quality audio interconnect cables for best performance. Speakers The RMB-1085 has fi ve sets of speaker con- nectors, one for each amplifi er channel. Speaker Selection The nominal impedance of the loudspeaker(s) connected to each channel of the RMB-1085 in the various operating modes should be no lower than 4 ohms. Speaker Wire Selection Use insulated two-conductor stranded wire to connect the RMB-1085 to the speakers. The size and quality of the wire can have an au- dible effect on the performance of the system. Standard speaker wire will work, but can result in lower output or diminished bass response, particularly over longer distances. In general, heavier wire will improve the sound. For best performance, you may want to consider special high-quality speaker cables. Your authorized Rotel dealer can help in the selection of ap- propriate cables for your system. Polarity and Phasing The polarity the positive/negative orientation of the connections for every speaker and amplifi er connection must be consistent so all the speakers will be in phase. If the polarity of one connection is mistakenly reversed, bass output will be very weak and stereo imaging degraded. All wire is marked so you can identify the two conductors. There may be ribs or a stripe on the insulation of one conductor. The wire may have clear insulation with dif- ferent color conductors (copper and silver). There may be polarity indications printed on the insulation. Identify the positive and nega- tive conductors and be consistent with every speaker and amplifi er connection. Speaker Connections ? See Figure 2 The RMB-1085 has two color coded terminals for each amplifi er channel. These speaker connectors accept bare wire, connector lugs, or “banana” type connectors (except in the European Community countries where their use is not permitted). Route the wires from the RMB-1085 to the speakers. Give yourself enough slack so you can move the components to allow access to the speaker connectors. If you are using banana plugs, connect them to the wires and then plug into the backs of the speaker connectors. The collars of the speaker connectors should be screwed in all the way (clockwise). If you are using terminal lugs, connect them to the wires. If you are attaching bare wires directly to the speaker connectors, separat