Rotel-RB-1050-OM 电路图 维修手册.pdf

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1、Owners Manual Manuel dutilisation Bedienungsanleitung Manuale di Istruzioni Manual de Instrucciones Gebruiksaanwijzing RB-1050 Stereo Power Amplifier Amplificateur De Puissance Stro Stereo-Endstufe Amplificatore di Potenza Etapa de Potencia Estereofnica Stereo Eindversterker POWER AMPLIFIER RB1050 P

2、OWER PROTECTION CLIPPINGCLIPPING CH-1CH-2 CH-1 LEVEL CH-2 LEVEL RadioFans.CN 收音机爱 好者资料库 2 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 ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE LA LA

3、ME 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 SERVICING TO QUALIFIED SERVICE PERSONNEL. WARNING: The

4、re are no user serviceable parts inside. Re- fer all servicing to qualified service personnel. WARNING: To reduce the risk of fire or electric shock, do not expose the unit to moisture or water. Do not allow for- eign objects to get into the enclosure. If the unit is exposed to moisture, or a foreig

5、n object gets into the enclosure, im- mediately disconnect the power cord from the wall. Take the unit to a qualified service person for inspection and nec- essary repairs. Read all the instructions before connecting or operating the component. Keep this manual so you can refer to these safety instr

6、uctions. 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

7、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.

8、 The unit must be connected to a power supply only of the type and volt- age specified 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 grou

9、nding and/or polarization provi- sions. 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. The power

10、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 ser- viced by a qualified service agency if: The power supply cord or plug has been damaged. Objects have fallen or liquid has b

11、een 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 it on a moveable cart that could tip over. RB-1050 Stere

12、o Power Amplifier RadioFans.CN 收音机爱 好者资料库 3 Figure 1: Controls and Connections Commandes et branchements Bedienelemente und Anschlsse Controlli e collegamenti Controles y Conexiones De bedieningsorganen en aansluitingen English POWER AMPLIFIER RB-1050 POWER PROTECTIONCLIPPINGCLIPPING CH-1CH-2 CH-1 L

13、EVEL CH-2 LEVEL 1233 454 AC BREAKER POWER AMPLIFIER MODEL NO. RB-1050 POWER CONSUMPTION: 250W CHANNEL 2 RIGHT CHANNEL 1 LEFT SPEAKERS 12V TRIGGER 12V TRIG.OFF SIGNAL SENSEOUTIN CH 2CH 1 10A SIGNAL OUTPUT LINK SERIAL NO. INPUT 4 OHMS MINIMUM CH 2CH 1 SPEAKER IMPEDANCE WARNING: TO REDUCE THE RISK OF F

14、IRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION WARNING:SHOCK HAZZARDDO NOT OPEN AVIS:RISQUE DE CHOCELECTRIQUENE PAS OUVRIR 6789101 112 PREAMP OUTPUTS RL PREAMPLIFIER SPEAKERSPEAKER AC BREAKER POWER AMPLIFIER MODEL NO. RB-1050 POW

15、ER CONSUMPTION: 250W CHANNEL 2 RIGHT CHANNEL 1 LEFT SPEAKERS 12V TRIGGER 12V TRIG.OFF SIGNAL SENSEOUTIN CH 2CH 1 10A SIGNAL OUTPUT LINK SERIAL NO. INPUT 4 OHMS MINIMUM CH 2CH 1 SPEAKER IMPEDANCE WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

16、. RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION WARNING:SHOCK HAZZARDDO NOT OPEN AVIS:RISQUE DE CHOCELECTRIQUENE PAS OUVRIR ROTEL RB-1050 Figure 2: Preamp Input and Speaker Output Connections Entre pramplificateur et sorties enceintes acoustiques Anschludiagramm (Cinch-Eingnge und Lautsprecher) Collega

17、menti di ingresso dal preamplificatore e delle uscite dei diffusori Conexiones para la Seal de Entrada y Salidas para la Conexin de las Cajas De aansluitingen naar de voorversterker en luidsprekerverbindingen RadioFans.CN 收音机爱 好者资料库 4 About Rotel A family whose passionate interest in music led them

18、to manufacture high fidelity compo- nents of uncompromising quality founded Rotel over 40 years ago. Through the years that passion has remained undiminished and the family goal of providing exceptional value for audiophiles and music lovers, regardless of their budget, is shared by all Rotel employ

19、- ees. The engineers work as a close team, listen- ing to, and fine 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 find ca- pacitors from the United

20、 Kingdom and Ger- many, semi conductors from Japan or the United States, while toroidal power transform- ers are manufactured in Rotels own factory. Rotels reputation for excellence has been earned through hundreds of good reviews and awards from the most respected reviewers in the industry, who lis

21、ten to music every day. Their comments keep the company true to its goal the pursuit of equipment that is musi- cal, 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 Thank you for purchasing the Rotel RB

22、-1050 Stereo Power Amplifier. When used in a high- quality music or home theater system, your Rotel amplifier will provide years of musical enjoyment. The RB-1050 is a high-power, two-channel power amplifier, providing the highest level of audio performance. Discrete output devices, a massive power

23、supply, premium components, and Rotels Balanced Design ensure superb sound quality. High current capability allows the RB-1050 to drive the most demanding loud- speakers. Be aware that the RB-1050 is capable of high power levels, in excess of 70 watts per channel. Make sure that your speakers can ha

24、ndle the power of the RB-1050. If in doubt about your speakers, ask your local Rotel audio dealer for advice. The RB-1050 is straightforward in its instal- lation and operation. If you have experience with other stereo power amplifiers, you shouldnt find anything perplexing. Plug in a pair of high-q

25、uality RCA cables from your preamp into the amplifier inputs, wire up your speakers, and enjoy. A Few Precautions Please read this manual carefully. In addition to basic installation and operating instructions, it provides valuable information on various RB-1050 system configurations as well as gen-

26、 eral information that will help you get opti- mum performance from your system. Please contact your authorized Rotel dealer for an- swers to any questions you might have. In ad- dition, all of us at Rotel welcome your ques- tions and comments. Save the RB-1050 shipping carton and all en- closed pac

27、king material for future use. Ship- ping or moving the RB-1050 in anything other than the original packing material may re- sult in severe damage to your amplifier. Fill out and send in the owners registration card packed with the RB-1050. Also be sure to keep the original sales receipt. It is your

28、best record of the date of purchase, which you will need in the event warranty service is ever required. Placement The RB-1050 generates heat as part of its nor- mal operation. The heat sinks and ventilation openings in the amplifier are designed to dissipate this heat. The ventilation slots in the

29、top cover must be open. There should be 10 cm (4 inches) of clearance around the chas- sis, and reasonable airflow through the in- stallation location, to prevent the amplifier from overheating. Likewise, remember the weight of the ampli- fier when you select an installation location. Make sure that

30、 the shelf or cabinet can sup- port its considerable bulk. Again, use com- mon sense. RB-1050 Stereo Power Amplifier Contents Figure 1: Controls and Connections3 Figure 2: Preamp Input and Speaker Output Connections3 About Rotel . 4 Getting Started . 4 A Few Precautions4 Placement4 AC Power and Cont

31、rol . 5 AC Power Input 5 Power Switch and Power Indicator 5 12V Trigger Mode Selector 5 12V Trigger Input and Output 5 Circuit Breakers 5 Protection Circuitry 5 Clipping Indicators 5 Input Signal Connections . 6 Front Panel Level Controls 6 “Signal Output Link” Connectors 6 Speaker Connection . 6 Sp

32、eaker Selection6 Speaker Wire Selection6 Polarity and Phasing6 Speaker Connection 6 Troubleshooting. 7 Front Panel Power Indicator Is Not Lit7 No Sound7 Protection Indicator Is Lit7 Specifications . 7 5English AC Power and Control AC Power Input Because of its high power rating, the RB-1050 can draw

33、 considerable current. Therefore, it should be plugged directly into a 2-pin po- larized wall outlet. Do not use an extension cord. A heavy duty multi-tap power outlet strip may be used if it (and the wall outlet) is rated to handle the current demanded by the RB-1050 and all the other components co

34、n- nected to it. Be sure the Power Switch on the front panel of the RB-1050 is turned off (in the out posi- tion). Then, connect the supplied power cord to the Power Connector on the back panel of the amplifier and to the AC power outlet. Your RB-1050 is configured at the factory for the proper AC l

35、ine voltage in the country where you purchased it (either 115 volts AC or 230 volts AC with a line frequency of either 50 Hz or 60 Hz). The AC line configuration is noted on a decal on the back panel. Note: Should you move your RB-1050 amplifier to another country, it is possible to reconfigure your

36、 amplifier for use on a different line voltage. Do not attempt to perform this conversion yourself. Opening the enclosure of the RB-1050 exposes you to dangerous voltages. Consult a qualified service person or the Rotel factory service department for information. If you are going to be away from hom

37、e for an extended period of time such as a month- long vacation, it is a sensible precaution to unplug your amplifier (as well as other au- dio and video components) while you are away. Power Switch and Power Indicator The power switch is located on the front panel of your amplifier. To turn the amp

38、lifier on, push the switch in. The LED indicator above the switch will light, indicating that the amplifier is turned on. To turn the amplifier off, push the button again and return it to the out po- sition. 12V Trigger Mode Selector The Amplifier provides the option for manual or automatic power on

39、/off operation. These modes are selectable using a switch on the back panel. NOTE: The front panel Power Switch must be ON for the automatic turn on sys- tem to work. When the switch is in the “12V TRIG” posi- tion, the amplifier is turned on automatically when a 12V trigger signal is present at the

40、 3.5 mm Jack of TRIGGER IN on the rear panel. The amplifier will go into standby mode af- ter a delay of 5 minutes if the +12V signal is not present. When the switch is in the “SIGNAL SENSE” position the amplfier is turned on whenever an audio signal is applied to the Inputs . If no audio signal is

41、applied to the inputs the amplifier will return to standby mode after a delay of 5 minutes. When the switch is in the “OFF” position the automatic activation system is turned off. Only the front panel Power Switch will control the amplifier. 12V Trigger Input and Output The jack labeled IN is for co

42、nnecting the 3.5mm Plug/Cable carrying a +12 volt trig- ger signal to turn the amplifier on and off. To use this feature the front panel Power Switch must be set to the ON position. This input ac- cepts any control signal (AC or DC) ranging from 3 volts to 30 volts. The jack labeled OUT is for conne

43、cting an- other 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 IN connector. Circuit Breaker A circuit breaker on the rear panel protects the amplifiers electrical circuity. Generally, the

44、circuit breaker will only open under a fault condition which results in excessive current draw. To reset the circuit breaker, press the button. Should it repeatedly open, contact your authorized Rotel dealer for troubleshooting assistance. Protection Circuitry The RB-1050 features a thermal protecti

45、on cir- cuit that protects the amplifier against potential damage in the event of extreme or faulty operating conditions. Unlike many designs, the RB-1050s protection circuit is indepen- dent of the audio signal and has no impact on sonic performance. Instead, the protection circuit monitors the tem

46、perature of the output devices and shuts down the amplifier if tem- peratures exceed safe limits. Most likely, you will never see this protection circuitry in action. However, should a faulty condition arise, the amplifier will stop play- ing and the LED indicator on the front panel will light up. I

47、f this happens, turn the amplifier off, let it cool down for several minutes, and attempt to iden- tify and correct the problem that caused the protection circuitry to engage. When you turn the amplifier back on, the protection circuit will automatically reset and the indicator LED should go out. In

48、 most cases, the protection circuitry activates because of a fault condition such as shorted speaker wires, or inadequate ventilation lead- ing to an overheating condition. In very rare cases, highly reactive or extremely low im- pedance speaker loads could cause the pro- tection circuit to engage.

49、If the protection circuitry triggers repeatedly and you are unable to isolate and correct the faulty condition, contact your authorized Rotel dealer for assistance in troubleshooting. Clipping Indicators Each channel has a Clipping Indicator on the front panel. “Clippping” occurs when an am- plifier it driven to the point it begins to pro- duce di