Rotel RT-950BX User's Manual
Contents
1. 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 along 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 SWITCHES AND CONTROLS 1 Power Button Press this button to turn on and off the unit 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 Power Indicator Glows when power is turned on with the power button 3 Signal Indicator The 5 LED indicator lights up to show incoming signal strength sensitivity Receiving condition for a broacast is optimized when all 5 LED s or as many LED s illuminated 4 AM Wide Indicator Lights up when the AM Wide Button is activated for the wide bandwidth reception 5 Frequency Display and Multi function Indicator 1 The frequency of the station selected is displayed The band chosen FM or AM is also shown together with MHz for FM or KHz for AM both MW and LW on the frequency display 2 The word AUTO lights up when the uto Tuning is activated 3 The word MEMORY lights up while the Memory button is activated 4 The word STEREO glows when stereo br2. 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 11 Auto Tuning Button Permits choose auto or manual tuning In the auto mode pressing either end of 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 In this mode the AUTO indicator will light up In the manual mode pressing either end of 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 LW band 12 Band Button Allows select reception on FM or AM MW or LW in case of the tuner with both MW and LW 13 Tuning Button Allows to tune in frequecies Press the right side marked gt to increase the frequency and the left side marked lt to decrease it WORDS ON OPERATION
3. appliance 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
4. 0 uV m 750 uV m Selectivity SOR 27 dB 25 dB NATON 42 dB 40 dB Signal to Noise Ratio 55 dB 55 dB Image Response Ratio 40 dB 40 dB If Response Ratio 60 dB 60 dB Loop Antenna MISCELLANEOUS Power Requiremert 120 V 60 Hz 220 V 50 Hz 240 V 50 Hz depending on destinations Power Consumption 10 watts Dimension overall 440 W x 72 H x 284 D mm 17 3 8 x 2 7 8 11 1 4 Weight 3 6 kg 7 92 Ibs e Specifications and design subject to possible modifica tion without notice
5. ROT ELLs AM FM STEREO TUNER RT 950BX owner manuq 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 a wet basement or near a swimming pool and the like 6 Carts and Stands 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
6. S 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 peramplifier to the minimum position before turning on the Power switch Raise the volume level after the desired station is tuned 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 three days 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 simplest is the pereset tuning as you only have to stored up to 20 of your favorite FM or AM stations once and recall any one of them with one touch or two touches simultaneously in case of the buttons 11 to 20 Make sure to learn the proper method for the storage in the memory as instructed above HUM AND NOISE In any 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 wi
7. XCLUSIVE NOTE FOR U K If 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 integrated amplifier or preamplifier using the proper interconnecting cords supplied with the tune
8. 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 serviceable parts inside the cabinet of the unit Do not attempt to open the cabinet or tamper with E
9. oadcast ing station 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 5 The center TUNED indicator lights up when a station is properly tuned 6 The channel CH indicator shows the numeri cal position of the preset station selected 6 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 20 AM or FM stations in the memory The channel indicator in the display will show the number of the preset button selected CAUTION If the AC power is removed from the tuner for more than 3 days 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 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 the Memory button followed by one of the station buttons marked 1 to 10 and 11 to 20 with 10 button Although there are only 10 buttons marked for positions 1 to 10 the 10 button converts the buttons to positions 11 to 20 So the buttons have double functions e g the button 1 is also 11 when used wi
10. perate normally 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 or moisture CAUTION RISK OF ELECTRIC SHOCK 00 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 The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS SERVICE ENTRANCE CONDUCTORS IF REQUIRED BY LOCAL CODES SEE NEC SECTION 810 21 0 FOR U S A ONLY ENGLISH AM FM STEREO TUNER RT 950BX A WORD FROM ROTEL Rotel take this opportunity to thank you for choosing our equipment for your
11. r 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 950BX OUTPUT 2 Installing and Connecting Antenna a Indoor FM Antenna The attached indoor antenna wire will suffice for proper quiet broacast reception in most good reception areas To install it connect the antenna to the FM Antenna terminals 75 ohm on the back of the tuner Then stretch the wire out and secure along a wall or where reception is optimal e Indoor T shap Antenna wire Applicable for U S A Canada or where approved to the usage FM 752 G AM T shape Antenna wire 3000 3002 750 Conversion Plug e Indoor Antenna wire Applicable for European ver sion FM75Q G AM 16206 9 07 28 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 750 G AM 7 93 AM Antenna The loop antenna is provided for AM reception
12. supporting 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 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 apart 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 o
13. th 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 result 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 950BX FM TUNER SECTION Usable Sensitivity 10 8 dBf 0 95 uV 75 ohms 50 dB Quieting Sensitivity MONO rei 14 8 dBf 1 5 uV 75 ohms 37 2 dBf 20 uV 75 ohms Signal to Noise Ratio at 65 dBf Monopis 80 dB A PONEI ee 75 dB Harmonic Distortion at 65 dBf 0 Soe 0 05 mono 0 25 stereo Frequency Response 30 to 15 000 Hz 1 5 dB Capture 1 0 dB Alternate Channel Selectivity 400 2 63 dB IF Response Ratio 95 dB AM Suppresion 60 dB Stereo Separation 100 2 1 2 10 kHz 43 dB 46 dB 38 dB Subcarrier Product Ratio 60 dB SCA Rejection Ratio 70 dB Output Level eee 1 0V Antenna 1 75 ohms unbalanced TUNER SECTION MW LW 35
14. th the 10 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 and hold the 10 button while pressing the station button 2 8 10 Button The tuner can store up to 20 different frequencies in its memory The first 10 are selected or stored just by pressing the appropriate button The second 10 numbers 11 to 20 are selected by pressing and holding the 10 button while pressing the station button simultaneously Consider the 10 button like the shift button for capital letters on a typewriter 9 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 The AM WIDE indicator will light up AM FM STEREO TUNER RT 9S0BX that the wide position is selected If there is too much hiss or noise from neighboring stations etc press the Button to deactivate the Wide circuit and back to the normal bandwidth position for reducing such noise to negligible 10 Mute Off Mono Button Allows selection of FM mono or stereo operation When
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