Rotel-RQ-970BX-OM 电路图 维修手册.pdf

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1、RQ-970BX PHONO EQUALIZER GALISATEUR PHONO PHONO-VORVERSTRKER EQUALIZZATORE FONO ECUALIZADOR DE FONO ROTEL PLATENSPELER VOORVERSTERKER RIAA-TRINN Owners Manual Guide de lutilisateur Bedienungsanleitung Manuale di Istruzioni Manual de Instrucciones Gebruiksaanwijzing Brukermanual RadioFans.CN 收音机爱 好者资

2、料库 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 LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU

3、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: There are no user serviceable parts inside. Refer all servicing to qualified service pers

4、onnel. WARNING: To reduce the risk of fire or electrical shock, do 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. T

5、ake the unit to a qualified service person for in- spection and necessary 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 itse

6、lf. Follow all operating instructions. Clean the unit only with a dry cloth or a vacuum cleaner. Keep the ventilation inlets on the unit unobstructed. For example, 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 bookcas

7、e or cabinet, there must be sufficient clearance around 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 spe

8、cified on the rear panel of the unit. Connect the unit 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 t

9、o 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 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 cor

10、d 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 unit and have it inspected and/or serviced by a qualified service agency if: The power supply cord or

11、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 Place the unit on a fixed, level surface strong enough to support its weight. Do not pl

12、ace the unit on a moveable cart that could tip over. This 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) instru

13、ctions in this manual and literature accompanying the product. RadioFans.CN 收音机爱 好者资料库 Figure 1:Controls and Connections Commandes et prises Bedienelemente und Anschlsse Controlli e collegamenti Controles y Conexiones De bedieningsorganen en in- en uitgangen Kontroller og tilkoblinger 1 2 PHONO EQUA

14、LIZER RQ-970BX INPUT MM MC LEFT RIGHT POWEROUTPUT LEFT RIGHT PHONO EQUALIZER MODEL NO. RQ-970BX POWER CONSUMPTION: 10W ROTEL ELECTRONICS CO., LTD. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE 3 5

15、467 RadioFans.CN 收音机爱 好者资料库 Figure 2:Typical System Connection Branchements types une chane Typisches Anschludiagramm Collegamenti tipici dellimpianto. Realizacin de las Conexiones Een voorbeeld hoe de voorversterker aan te sluiten PHONO EQUALIZER RQ-970BX R LGND PHONO RQ-970BX RA-985BX CD TUNER AUX

16、 1 AUX 2 INTEGRATED AMPLIFIER 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 ROTE

17、L ELECTRONICS CO., LTD. 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 MOISTURE INPUT MM MC LEFT RIGHT POWEROUTPUT LEFT RIGHT PHONO EQUALIZER MODEL NO

18、. RQ-970BX POWER CONSUMPTION: 10W ROTEL ELECTRONICS CO., LTD. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE RIGHT LEFT 1 About Rotel A family whose passionate interest in music led them to manufac-

19、 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 their budget, is shared by all Rotel employees. The

20、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 likely to find capacitors from the United Kingdom and

21、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 respected re- viewers in the industry, who listen to music

22、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 Thank you for purchasing the Rotel RQ-970BX Phono Pr

23、eamp Equalizer. When used in a high-quality music audio system, it will provide years of musical enjoyment. With the increased use of digitally based audio media, many mod- ern high performance audio components lack the circuitry needed to handle the signals produced by phono systems. The RQ-970BX i

24、s a high performance phono equalizer. The output signal from the RQ-970BX can be plugged into any line level input. The RQ-970BX uses the same sophisticated circuit designs and high quality com- ponents that have made Rotel a world-wide standard of perfor- mance. This type of design is more expensiv

25、e to manufacture, but it is better for the music. The RQ-970BX is straightforward in its installation and operation. If you have experience with other stereo systems, you shouldnt find anything perplexing. Simply plug in the associated compo- nents and enjoy. English Contents (circled numbers refer

26、to illustration) About Rotel _ 1 Getting Started _ 1 A Few Precautions2 Placement2 Cables2 AC Power and Control _ 2 AC Power Input 72 Power Switch 2 and Power Indicator 1 2 Input Connection _ 2 Phono Input Selector Switch (MM/MC)32 Phono Input Connection 4 and Ground Terminal52 Output Connections 6_

27、 3 Troubleshooting _ 3 Power Indicator Not Lit3 No Sound3 Specifications _ 3 2 A Few Precautions Please read this manual carefully. It provides complete informa- tion on how to incorporate the RQ-970BX into your system as well as general information that will help you get optimum sound per- formance

28、. Please contact your authorized Rotel dealer for an- swers to any questions you might have. In addition, all of us at Rotel welcome your questions and comments. Save the RQ-970BX shipping carton and all enclosed packing ma- terial for future use. Shipping or moving the RQ-970BX in anything other th

29、an the original packing material may result in severe dam- age to your amplifier. Fill out and send in the owners registration card packed with the RQ-970BX. 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 ser

30、vice is ever required. Placement Like all audio components that handle low-level signals, the RQ-970BX can be affected by its environment. Do not stack the RQ-970BX on top of a power amplifier. This will minimize the chance it will pick up hum or interference. We recommend install- ing the RQ-970BX

31、in furniture designed to house audio compo- nents. Such furniture is designed to reduce or suppress vibration which can adversely affect sound quality. Ask your authorized Rotel dealer for advice about component furniture and proper in- stallation of audio components. Cables Be sure to keep the powe

32、r cords, digital signal cables and regular audio signal cables in your installation 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 hel

33、p to prevent noise or interference from degrading the sound quality of your system. If you have any questions see your authorized Rotel dealer for advice about the best cable to use with your system. AC Power and Control AC Power Input 7 The RQ-970BX does not use a significant amount of power. The m

34、ost convenient power source may be a switched power outlet on another component. Then you can leave the power switch of the RQ-970 in the “on” position and it will be turned on and off with the other components. Your RQ-970 is configured at the factory for the proper AC line voltage in the country w

35、here 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 the back panel. Note: Should you move your RQ-970 to another country, it is pos- sible to reconfigure your amplifier for use on a different line volt- age

36、. Do not attempt to perform this conversion yourself. Opening the enclosure of the RQ-970 exposes you to dangerous voltages. Consult a qualified service person or the Rotel factory service de- partment for information. If you are going to be away from home for an extended period of time such as a mo

37、nth-long vacation, it is a sensible precaution to unplug the RQ-970 (as well as other audio and video components) while you are away. Power Switch 2 and Power Indicator 1 The Power switch is located on the left side of the front panel. When it is pressed the RQ-970 is turned on and the Power Indica-

38、 tor light is illuminated. Pressing the Power switch again will turn the RQ-970 off. Input Connection See Figure 2 for typical system connection illustration. The RQ-970BX has conventional RCA type input connectors, the type found on nearly all audio equipment. Note: To prevent loud noises that neit

39、her you nor your speakers will appreciate, be sure to turn off the power to all the compo- nents in the system before you make any signal connections. Phono Input Selector Switch (MM/MC) 3 The RQ-970BX can accept inputs from moving magnet (MM) or moving coil (MC) phono cartridges. Set the Phono Inpu

40、t Selector Switch as appropriate for the phono cartridge you are using. Leave the switch button in the out position for a moving magnet cartridge; push the switch in for a moving coil cartridge. Some high output moving coil cartridges are designed to operate in the moving magnet position. If you are

41、 in doubt about the correct set- ting, check the instruction manual for your phono cartridge for in- formation regarding its output voltage and the expected input impedance. The Phono input has 47 kOhms input impedance and 2.5 mV sensitivity in the MM position, and 100 Ohms input imped- ance and 210

42、 V sensitivity in the MC position. If you still have questions about the proper setting of the phono input selector switch, consult your authorized Rotel dealer. Phono Input Connection 4 and Ground Terminal 5 Plug the cable from the turntable into the appropriate left and right phono inputs. If the

43、turntable has a “ground” wire connect it to the screw terminal 5 to the right of the inputs. It will help prevent hum and noise. PHONO EQUALIZER RQ-970BX 3 Output Connections 6 See Figure 2 for typical system connection illustration. Most power amplifiers have RCA-type input connectors that are comp

44、atible with the outputs of the RQ-970BX. Connect a set of cables between the outputs of the RQ-970BX and one of the line level inputs of the amplifier. As always, use high quality cables and be sure to connect the Left and Right channel outputs of the RQ-970BX to the correct channels of the amplifie

45、r. Troubleshooting Most difficulties in audio systems are the result of incorrect con- nections, or improper control settings. If you encounter problems, isolate the area of the difficulty, check the control settings, deter- mine the cause of the fault and make the necessary changes. If you are unab

46、le to get sound from the RQ-970BX, refer to the sug- gestions for the following conditions: Power Indicator Is Not Lit The Power Indicator should be lit whenever the RQ-970BX is plugged into the wall power outlet and the power switch is turned on. If it does not light, test the power outlet with ano

47、ther electrical device, such as a lamp. Be sure the power outlet being used is not controlled by a switch that has been turned off. No Sound Be sure the phonograph is functioning properly. Check the wiring from the back of the phono cartridge to the phonograph tone arm. Make sure the cables from the

48、 phonograph to the RQ-970BX in- puts are connected properly. Be sure the input selector on the control preamplifier (or integrated amplifier or receiver) is set to the proper input. Check all the other components in the signal path for power and proper operation. If the system has a separate preampl

49、ifier and power amplifier, check the wiring between them. Also check the wiring between the speaker outputs and the speakers. English Specifications Total Harmonic Distortion (20Hz-20kHz) 0.004% Intermodulation Distortion (60 Hz : 7 kHz, 4:1) 0.004% at 1V output Input Sensitivity / Impedance Phono - MC210 V / 100