Rotel HIFI RT-970BX User's Manual
Contents
1. coaxial cable To outdoor FM antenna c AM Antenna the loop antenna is provided for AM reception Lock the loop onto the loop holder on the back of the tuner and connect the two ends to the antenna terminals marked G and AM Swing out the loop around for finding the best AM reception In difficult reception areas connect an outdoor antenna which is usually a long piece of shielded wire to the AM terminal Make sure the loop is still left connected even if the outdoor or another antenna is used Swing out for optimal reception To outdoor AM antenna SWITCHES AND CONTROLS 1 Power Button Press this button to turn on and off the unit The LED indicator above it will glow when the power is turned on CAUTION As long as the power cord is connected to a live AC outlet power is supplied to the tuner regardless of the position of the power button This is to enable the memory backup to work 2 Signal Indicator The 0 to 5 digital indicator lights up to show the incom ing strength sensitivity Receiving condition for a broad cast is optimized when 5 or the higher number illuminated 3 Frequency Display and Multi function Indicator 1 The frequency of the station selected is displayed The band chosen FM AM is also shown together with MHz for FM or KHz for AM on the frequency display 2 The word MEMORY lights up while the Memory button is activated 3 The word STEREO glows when stereo broadcasting s2. AND NOISE Inany high fidelity installations hum may be caused by the interconnection of turntable tuner amplifier and speakers as the result of wiring different grounding or locations of components Normally hum is rarely associated with a faulty tuner and the most likely cause lies in the installation If any part of the antenna is in contact with a ground point copper water pipes for example hum will almost certainly reduce if your amplifier has a three core mains lead It is also important to check that the audio interconnect cords have been pushed fully into their sockets on both tuner and amplifier Sometimes the problem is actually caused by a signal which is too strong in which case an antenna attenuator is recommended If in doubt please consult your dealer SPECIFICATIONS RT 970BX FM TUNER SECTION Usable Sensitivity 10 8 dBf 0 95 uV 75 ohms 50 dB Quieting Sensitivity 14 8 dBf 1 5 uV 75 ohms SIOIBOS 37 2 dBf 20 uV 75 ohms Signal to Noise Ratio at 65 dBf 83 dB Sinou 78 dB Harmonic Distortion at 65 dBf WA Ze 0 05 mono 0 21 stereo Frequency Response 30 to 15 000 Hz 0 5 dB Capture 1 0 dB Alternate Channel Selectivity Wide 60 dB 80 dB Adjacent Channel Selectivity 15 dB Narrow Spurious Response Ratio 100 dB Image Respon
3. RD FROM ROTEL Rotel take this opportunity to thank you for choosing our equipment for your home entertainment Rotel equipment represents a very high state of the art in sound reproduction as the result of our everlasting deter mination to achieve the truly hi fi performance Please enjoy the sound Rotel have created for many years to come To make sure you get the most out of your equipment please read this owner s manual carefully before you at tempt any connections BEFORE CONNECTIONS 1 Place for Installation Ensure to place the unit in a flat surface where it is free from humidity vibration high temperature and not exposed to direct sunlight Also be careful not to place the unit in a highly enclosed area without adequate ventilation around the unit Do not block the ventilation openings at the top and the bottom of the unit to prevent excessive heat built up 2 Electrical Requirements Your equipment has been designed to be powered by the local AC voltage Check the setting of your unit by looking at the rear panel name plate Never try to plug the unit into an outlet of higher voltage as this causes a serious fire hazard Consult your dealer if in doubt 3 Connecting the Power Cord Always handle the power cord with care Ensure to con nect the cord to the household wall outlet When plugging and unplugging make sure the power switch on the unit is turned off 4 Do not Open the Cabinet There are no user serviceab
4. RO 5 AM FM STEREO TUNER RI 970BX Owners manud WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE Write your SERIAL NUMBER here The number is located near the name plate on the rear panel SAFETY INSTRUCTION 1 Read Instructions All the safety and operating instructions should be read before the appliance is operated 2 Retain Instructions The safety and operating instructions should be retained for future reference 3 Heed Warnings All warnings on the appliance and in the operating instructions should be adhered to 4 Follow Instructions All operating and use instructions should be followed 5 Water and Moisture The appliance should not be used near water for example near a bathtub washbowl kitchen sink laundry tub in a wet basement or near a swimming pool and the like 6 Carts and Stande the appliance should be used only with a cart or stand that is recommended by the manufac turer 6A An appliance and cart combination should be moved with care Quick stops excessive force and uneven surfaces may cause the appliance and cart combination to overturn 7 Wall or Ceilling Mounting The ap pliance should be mounted to a wall or ceilling only as recommended by the manufacturer 8 Ventilation The appilance should be situated so that its location or position does not interfere with its proper ventilation For example the ap
5. he Memory button followed by one of the station buttons marked 1 to 8 and 9 to 16 with the 8 button Although there are only 8 buttons marked for positions 1 to 8 the 8 button con verts the buttons to positions 9 to 16 So the buttons have double functions e g the button 1 is also 9 when used with the 8 button The Memory indicator in the display will light up during this process Note that once the Memory button is pressed you must press the required station button within a few seconds to store the station frequency If the Memory indicator is no longer light you must press the Memory button again before storing the required frequency For example to store desired local station in the station button 12 first tune in to the station press the Memory button then press the 8 button and follow to press the station button 4 8 Auto Tuning Button Permits to choose auto or manual tuning Inthe auto mode pressing either the Tuning button will cause the tuner to increase or decrease depending on which end of the Tuning button pressed the received frequency until a reasonably strong signal is received At this point the tuning will stop automatically inthe manual mode pressing either Tuning button causes the tuner to increase or decrease the received frequency only for as long as the Button is depressed NOTE Auto tuning does not operate for AM band ROTEL AM FM STEREO TUNER RT 970BX 9 FM Wide button Pre
6. le parts inside the cabinet of the unit Do not attempt to open the cabinet or tamper with EXCLUSIVE NOTE FOR U K f your unit comes with a 2 core mains lead without a plug neither core is to be connected to the earth terminal of a three pin plug make certain that they are connected according to the following instruction to the proper terminals Check that the terminals are screwed down firmly and no loose strands of wire are present IMPORTANT The wires in this mains lead are coloured in accordance with the following code BLUE NEUTRAL BROWN LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLUE or BLACK The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured BROWN or RED the internal components If water or foreign object falls inside the unit by accident disconnect the power cord immediately and consult a qualified electrician or your dealer 5 Cleaning Your Unit If your unit becomes dirty wipe it gently with a soft dry cloth Never use solvents of any kind CONNECTIONS 1 Connecting to Integrated Amplifier or Preamplifier a Connect the OUTPUT terminals on the back of the tuner tothe TUNER inputs on the rear of your integ
7. ly or exhibits a marked change in performance or E The appliance has been dropped or the enclosure damaged 17 Servicing The user should not attempt to service the appliance beyond that described in the operating instructions All other servicing should be referred to qualified factory authorized service personnel WARNING To reduce the risk of fire or electric shock do not expose this appliance to rain moisture CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons intended to alert the user to the presence of important operating and maintenance servicing instructions in The exclamation point within an equilateral triangle is the literature accompanying the appliance EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS ELECTROOE SYSTEM 09 nieno metal water gt OPTIONAL ANTENNA GROUNDING ELECTROOE DRIVEN 6 FEET 2 44 m INTO THE EARTH REQUIRED BY LOCAL CODES SEE NEC SECTION 810 21 0 FOR U S A ONLY ENGLISH AM FM STEREO TUNER RT 970BX A WO
8. noise from neighboring stations etc press the Button to deactivate the Wide circuit and back to the normal bandwidth position for reducing such noise as much as possible 14 Band Selection button Allows to select reception on FM or AM band WORDS ON OPERATIONS Precautions 1 Before commencing operation check to see if all con nections are properly made 2 Always ensure to set the Volume control of the con nected integrated amplifier or preamplifier to the minimum position before turning on the Power switch Raise the volume level after the desired station is tuned in Memory Backup As explained above the memory for the preset stations is retained as long as the power cord is plugged into an AC outlet regardless of the position of the Power button However if you leave the power cord unplugged for over 2 weeks or if there is a power failure for over three days the stored frequencies will be lost In such cases the operation for storing frequencies in the memory have to be done again from the beginning Tuning Modes Bear in mind that there are 3 modes of tuning with the tuner auto tuning manual tuning and preset memory tuning The simpliest is the preset tuning as you only have to stored up to 16 of your favorite FM or AM stations once and recall any one of them with one touch or two touches in case of the buttons 9to16 Make sure tolearn the proper method for the storage in the memory as instructed above HUM
9. pliance should not be situated on a bed sofa rug or similar surface that may block the ventilation openings or placed in a built in installation such as a bookcase or cabinet that may impede the flow of air through the ventilation openings 9 Heat The appliance should be situated away from heat sources such as radiators heat registers stoves or other appliances including amplifiers that produce heat 10 Power Sources The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance 11 Grounding or Polarization The precautions that should be taken so that the grounding or polarization means of an appliance is not defeated 12 Power Cord Protection Power supply cords should be routed so that thay are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and the point where thay exit from the appliance PORTABLE CART WARNING 53125 Power Lines An outdoor antenna should be located away from power lines Outdoor Antenna Grounding If an outside antenna is connected to the receiver be sure the antenna system is grounded so as to provide some protection against voltage surges and built up static charges Section 810 of the National Electrical Code ANSI NFPA No 70 1984 provides information with respect to proper ground ing of the mast and sup
10. porting structure grounding of the lead in wire to an antenna discharge unit size of grounding con ductors location of antenna discharge unit connection to ground ing electrodes and requirements for the grounding electrode See Figure a Use No 10 AWG 5 3 mm copper No 8 AWG 8 4 mm aluminum No 17 AWG 1 0 mm copper clad steel or bronze wire or larger as a ground wire b Secure antenna lead in and ground wires to house with stand off insulators spaced from 4 6 feet 1 22 1 83 m apart c Mount antenna discharge unit as close as possible to where lead in enters house d Use jumper wire not smaller than No 6 AWG 13 3 mm copper or the equivalent when a separate antenna grounding electrode is used 13 Cleaning The appliance should be cleaned only as recom mended by the manufacturer 14 Nonuse Periods The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time 15 Object and Liquid Entry Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings 16 Damage Requiring Service The appliance should be serviced by qualified factory authorized service personnel when A The power supply cord or the plug has been damaged or B Objects have fallen or liquid has been spilled into the appliance or C The appliance has been exposed to rain or D The appliance does not appear to operate normal
11. rated amplifier or preamplifier using the proper interconnecting cords supplied with the tuner Make sure the Right RED and the Left WHITE channels are correctly connected b Note you may connect the tuner to the AUX inputs on your integrated amplifier or preamplifier if necessary AMPLIFIER RT 970BX 2 Installing and Connecting Antenna a Indoor FM Antenna the attached indoor antenna wire will suffice for proper quiet broadcast reception in most good reception areas To install it connect the antenna to the FM ANTENNA terminals on the back of the tuner Then stretch the wire out and secure along one wall or where reception is optimal Indoor Antenna wire Applicable for U S A Canada or where approved to the usage FM 752 T shap antenna wire 300 ohm 300 ohm gt 75 ohm Conversion Plug Indoor Antenna wire Applicable for European version FM75Q G AM a OO 0 59 Antenna wire b Outdoor FM Antenna In areas of average to weak reception conditions an outdoor antenna mounted on the roof or top of the building may be necessary for best results When using such outdoor type antenna ensure remove the indoor antenna A 75 ohm coaxial cable is usually recommended If using this type cable properly hook it up to the designated antenna terminals on the back of the tuner When in doubt on the FM outdoor antenna system consult your dealer FM752 G AM QA E 75
12. se Ratio 75 dB IF Response Ratio 100 dB AM Suppresion Ratio 60 dB Stereo Separation 100 Hz 1 2 10 kHz 43 dB 48 dB 38 dB Subcarrier Product Ratio 60 dB SCA Rejection 70 dB Output M E aE 1 0 V Antenna 75 ohms unbalanced AM TUNER SECTION SENSIS Yeston 350 uV m Selectivity Wide Narrow 27 dB 42 dB Signal to Noise 55 dB Image Response Ratio 40 dB If Response Ratio 60 dB PUTTOTINA Ss ncesssnncasnsseseccassees Loop Antenna MISCELLANEOUS Power Requiremenrt 120 V 60 Hz 220 V 50 Hz 240 V 50 Hz depending on destinations Power Consumption 10 watts Dimensions overall 440 W x 72 H x 327 D mm 17 3 8 x 2 7 8 13 Weight 3 9 kg 8 58 Ibs e Specifications and design subject to possible modifica tion without notice
13. ss the button to the WIDE position for a wider FM bandwidth to enjoy better FM sound during normal good reception conditions If there is too much hiss or noise from the neighboring station etc press the button to deactivate the wide circuit and back to normal bandwidth position for reducing such noise as mush as possible 10 RF ATT button Press the button to attenuate the RF gain for reducing the noise from the strong neighboring station received 11 Mute Off Mono Button Allows selection of FM mono or stereo operation When the Mono position is chosen any broadcast will be received monaurally and the muting switch for suppress ing interstation noise will be deactivated to pull weak signals which are normally cut off during the stereo opera tion For reception of weak and noisy signals use the Mute Off Mono position For normal use choose the stereo operation by deactivating the Button in this position stereo broadcasts will be provided in stereo and the STEREO indicator will light up When mono programs are broadcasted mono sound is provided and the STEREO indicator will not light 12 Hi Blend button Press the button to reduce the annoying noise mixed in with the signal This switch however should not be always deactivated unless necesary 13 AM Wide Button Press the Button to the wide position for a wider AM bandwidth to enjoy better AM sound during normal good reception conditions If there is too much hiss or
14. tation is tuned in and when the Muting Off Mono button is deactivated for the stereo operation It will also not light up for very weak stereo signals which the tuner will not receive in stereo 4 Station Buttons Pressing one of these buttons will tune the tuner to the frequency stored in the memory Pressing the Memory button followed by one of these buttons will store the frequency displayed in that menory It is possible to store up to 16 AM or FM stations in the memory The LED on each station button will light up when station button pressed CAUTION If the AC power is removed from the tuner for more than 2 weeks the frequencies stored in the memories will be lost NOTE Each time you switch the tuner on it will tune to the station frequency to which it was previously tuned 5 8 button The tuner can store up to 16 different frequencies in its memory The first 8 are selected or stored just by press ing the appropriate button The second 8 numbers 9 to 16 are selected by pressing the 8 button and then pressing the desired station button the LED on it will light up when the 8 button pressed 6 Tuning Button Allows to tune in frequecies Press the right side button marked gt to increase the frequency and the left side button marked lt to decrease it 7 Memory Button Stores frequencies in the tuner s memory To store a frequency first tune to the desired broadcast program using the Tuning button Then press t
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