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Owner’s Manual RX-975 AM/FM Stereo Receiver
Owner’s Manual
RX-975AM/FM Stereo Receiver
2RX-975 AM/FM Stereo Receiver
WARNING:
There are no user serviceable parts inside. Refer allservicing to qualified service personnel.
WARNING:
To reduce the risk of fire or electric shock, do notexpose the unit to moisture or water. Do not allowforeign objects to get into the enclosure. If the unitis exposed to moisture, or a foreign object gets intothe enclosure, immediately disconnect the power cordfrom the wall. Take the unit to a qualified serviceperson for inspection and necessary repairs.
Read all the instructions before connecting or operating thecomponent. Keep this manual so you can refer to these safetyinstructions.
Heed all warnings and safety information in these instruc-tions and on the product itself. Follow all operating instruc-tions.
Clean the enclosure only with a dry cloth or a vacuum cleaner.
You must allow 10 cm or 4 inches of unobstructed clearancearound the unit. Do not place the unit on a bed, sofa, rug, orsimilar surface that could block the ventilation slots. If thecomponent is placed in a bookcase or cabinet, there must beventilation 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 typeand voltage specified on the rear panel of the unit.
NOTE TO CATV SYSTEM INSTALLER:
Call the CATV system or antenna installer’s attention to Ar-ticle 820-40 of the NEC. This provides guidelines for propergrounding and, in particular, specifies that the cable groundshall be connected to the grounding system of the building,as close to the pint of cable entry as practical. See installa-tion diagram.
NOTE:
This equipment has been tested and found to comply with thelimits for a Class B digital device, pursuant to Part 15 of theFCC Rules. These limits are designed to provide reasonableprotection against interference in a residential installation.This equipment generates and can radiate radio frequencyenergy and, if not installed and used in accordance with theinstructions, may cause interference to radio or TV commu-nications. There is no guarantee that interference will not occurin a particular installation. If this equipment does cause in-terference to radio or television reception, which can deter-mined by turning the equipment off and on, try to correctthe interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the unit and the televi-sion tuner.
• Connect the unit to an AC power outlet on a different elec-trical circuit.
• Consult your authorized Rotel retailer for assistance.
Connect the component to the power outlet only with the sup-plied power supply cable or an exact equivalent. Do not modifythe supplied cable in any way. Do not attempt to defeat ground-ing 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 anyway. Pay particular attention to the power cord at the plugand where it exits the back of the unit.
The power cord should be unplugged from the wall outlet ifthe unit is to be left unused for a long period of time.
Immediately stop using the component and have it inspectedand/or serviced by a qualified service agency if:
• The power supply cord or 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 sup-port its weight. Do not place it on a moveable cart that couldtip over.
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Figure 1: Controls and Connections
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4RX-975 AM/FM Stereo Receiver
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Figure 2: RR-949 Remote Control
Figure 3: Antenna Connections
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Figure 4: Input Connections
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6RX-975 AM/FM Stereo Receiver
Figure 5: Output Connections
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ContentsFigure 1: Controls and Connections 3
Figure 2: RR-949 Remote Control 4
Figure 3: Antenna Connections 4
Figure 4: Input Connections 5
Figure 5: Output Connections 6
About Rotel ........................................... 8
Getting Started ...................................... 8
Unpacking 8
Placement 8
Main Operating Controls ......................... 8
Power Switch and Standby Switch 8
Remote Sensor 9
Front Panel Display 9
Master Volume 9
Tone Controls 9
Balance Control 9
Headphones Jack 9
Speaker Button and Speaker LEDs 9
MEMORY Button 9
Input Source Buttons 9
Tuning Controls .................................... 10
BAND Button 10
TUNING Button 10
NUMERIC Buttons: Station Presets 10
FREQUENCY DIRECT Button 10
MONO Button 10
RR-949 Remote Control .......................11
AUDIO Button 11
Programming the RR-949 11
POWER Button 11
VOLUME Buttons 11
SHIFT Button 11
MUTE Button 11
PRESET AUTO SCAN Button[SHIFT] MUTE 11
TV/BAND Button 11
TUNE/PRESET Button[SHIFT] TV/BAND 11
CH TUNING Buttons 11
INPUT SOURCE Buttons 12
NUMERIC Buttons 12
Rear Panel Connections ........................ 12
Phono Inputs and Phono Ground 12
CD Inputs 12
Tape Inputs and Outputs 12
VIDEO 1 Inputs/Outputs 12
VIDEO 2 – 5 Inputs 12
TV Monitor Output 12
Speaker Outputs 12
Preamp Inputs/Outputs 13
Antenna Connections ............................ 13
AM Loop Antenna 13
FM Wire Antenna 13
AC Power Connections .......................... 14
AC Input 14
AC Convenience Outlet [USA version only] 14
Remote External Sensor 14
Specifications ....................................... 15
Audio 15
Video 15
FM Tuner 15
AM Tuner 15
General 15
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8RX-975 AM/FM Stereo Receiver
About RotelA family whose passionate interest in mu-sic led them to manufacture high fidelity com-ponents of uncompromising quality foundedRotel over 30 years ago. Through the yearsthat passion has remained undiminished andthe family goal of providing exceptional valuefor audiophiles and music lovers regardlessof their budget, is shared by all Rotel em-ployees.
The engineers work as a close team, listen-ing to, and fine tuning each new productuntil it reaches their exacting musical stan-dards. They are free to choose componentsfrom around the world in order to make thatproduct the best they can. You are likely tofind capacitors from the United Kingdom andGermany, semi conductors from Japan orthe United States, while toroidal power trans-formers are manufactured in Rotel’s ownfactory.
Rotel’s reputation for excellence has beenearned through hundreds of good reviewsand awards from the most respected review-ers in the industry, who listen to music ev-ery day. Their comments keep the companytrue to its goal - the pursuit of equipment thatis musical, reliable and affordable.
All of us at Rotel, thank you for buying thisproduct and hope it will bring you many hoursof enjoyment.
Getting StartedThank you for purchasing the Rotel RX-975AM/FM Stereo Receiver. The RX-975 is threeproducts in one:
1. A full-featured audio/video control cen-ter for analog audio and video sourcecomponents
2. A high-quality AM/FM tuner with 30station presets, direct access tuning, andauto-tuning.
3. A high power 2-channel amplifier.
Rotel’s Balanced Design Concept combinesadvanced circuit board layout, comprehen-sive parts evaluation, and extensive listen-ing tests for superior sound and long termreliability. We are confident that you will en-joy the high performance of your RotelRX-975 for years to come.
In addition, the RX-975 includes a univer-sal remote control that is factory programmedoperate the RX-975 and can be programmedto operate up to seven other components ofyour choice, providing the convenience ofwhole-system control from a single remote.
Unpacking
Remove the unit carefully from its packing.Look for the handheld remote control andother accessories. Save the packing and boxas it will protect the RX-975 if you move orneed to return it for maintenance.
Placement
Place the RX-975 on a solid, dry, level sur-face away from direct sunlight, excessiveheat, high humidity, or strong vibrations.
The RX-975 can generate considerable heatduring normal operation. Do not block itsventilation openings. Allow a minimum of10 cm (4 inches) of unobstructed open spacearound the unit. If installed in a cabinet, makesure that there is adequate ventilation.
Make sure the RX-975 is close to the othercomponents in your audio/video system and,if possible, place it on its own shelf. This willmake initial cable routing, hookup, and anysubsequent system changes easier. It alsominimizes potential interference or heatbuildup from other components.
Make sure there is enough room behind theRX-975 for easy hookup. Remember, you areconnecting many other components to thisunit and you’ll probably need more spacethan you think.
Don’t stack other objects (components orother items) on top of the RX-975. Don’t letwater fall into the RX-975 as this could dam-age delicate circuitry.
Main Operating ControlsWe suggest you look over the RX-975’s frontand rear panels before you start connect-ing other components to it. The following ex-planations will help you get familiar with theunits connections, features, and controls, withnumber references corresponding to the il-lustrations at the front of this manual.
Most functions are duplicated on the frontpanel and on the remote control shipped withyour unit. A few may be available only onone or the other. When two reference num-bers appear, one refers to the location ofthe button on the front panel, the other tothe location of the button on the handheldremote control.
NOTE: Front panel controls and displays usedfor tuning the AM/FM receiver are de-scribed in the next section of this manual.
POWER Switch andSTANDBY Switch
The RX-975 has two pushbuttons for pow-ering on and off. The POWER switch com-pletely shuts down all of the circuitry, simi-lar in effect to removing the power cord fromthe AC outlet. The STANDBY switch deacti-vates the unit, but preserves power to somecircuits such as those that store memorizedcircuits. When in STANDBY mode, a frontpanel STANDBY LED indicator lights. TheSTANDBY switch is duplicated on theRX-975's remote.
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In normal operation, use the STANDBY switchto deactivate the unit when you are finishedlistening and leave the POWER switch ONat all times. This will preserve memory func-tions.
NOTE: The STANDBY switch also controlsthe rear panel AC outlets. When the RX-975is in STANDBY mode, the AC outlet is alsooff. When the RX-975 is fully functional, theAC outlet is live.
Remote Sensor
This sensor receives infrared signals from thehandheld remote control. Make sure you donot accidentally block this sensor with cablesor accessories.
Front Panel Display
The large fluorescent display in the upperportion of the RX-975 provides status infor-mation used in operating the AM/FM re-ceiver (such as station frequency display,band, preset memory, etc.).
MASTER VOLUME
The MASTER VOLUME control adjusts thelevel of all output channels simultaneously.Rotate the control clockwise to increase thevolume. Rotate counterclockwise to decreasethe volume. MASTER VOLUME buttons arealso available on the RX-975's handheld re-mote control.
When you adjust the volume, a bar indica-tor in the display shows the volume setting.
TONE Controls
BASS and TREBLE controls increase anddecrease the audio signal’s low and highfrequency content respectively. Rotate clock-wise to increase output in the respective fre-quency range and counterclockwise to re-duce it. The center detent removes eachcontrol from the audio path for maximumsignal integrity.
BALANCE Control
Turn the BALANCE control clockwise to in-crease the output level of the right channelspeakers. Turn counterclockwise to increasethe output level of the left channel speakers.The center detent position removes the controlfrom the circuit and provides equal outputfrom both left and right channels.
HEADPHONES Jack
This jack accepts a standard 1/4 inch ste-reo headphone plug. Use an adaptor if yourheadphones have the smaller mini-plug.Inserting a headphone plug will automati-cally disable all speaker outputs.
SPEAKER Button andSPEAKER LEDs
The RX-975 provides output connections fortwo pairs of speakers: A and B. The SPEAKERBUTTON controls which pairs of speakersoutputs, if any, are active. A pair of SPEAKERLED indicators located to the left of the DIS-PLAY shows the current speaker selection.Press the SPEAKER button repeatedly to stepsequentially through the four availablespeaker options:
• Speakers A active (LED A only lit)
• Speakers B active (LED B only lit)
• Speakers A and B active (both LEDs lit)
• All speakers off (no LEDs lit)
NOTE: Inserting a headphone plug into theheadphone jack disables all speaker out-puts, regardless of the SPEAKER button set-ting.
MEMORY Button
The MEMORY button is used to confirm andmemorize tuner station presets. Its use isdescribed in detail in the Tuning Controls sec-tion of this manual.
Input Source Buttons
Ten large front panel buttons directly selectan audio or video input source (such as aCD player, the built-in tuner, a tape recorder,video sources, etc.) for listening. Push anyof these buttons (or the duplicates on thehandheld remote) to select the desired source.You will hear this source and, if you haveselected a video source, see its picture onyour TV monitor. The front panel display willshow the current source selection.
TAPE MONITOR Buttons: Two of the IN-PUT SOURCE buttons have a special func-tion. The TAPE 1 and TAPE 2 MONITORbuttons activate the audio inputs of a tapemonitor loop consisting of a pair of outputsand a matching set of inputs. Normally, thistape monitor loop is used to play a tape deckconnected to these inputs or for real timemonitoring of a recording in progress on anaudio tape deck. Alternatively, the tapemonitor loop could be used to pass a sig-nal to a graphic equalizer and listen to theprocessed signal by pressing the correspond-ing TAPE MONITOR button. An indicator ap-pears in the front panel display when TAPE2 MONITOR is activated.
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10RX-975 AM/FM Stereo Receiver
Tuning ControlsThe RX-975 features a digital synthesizedAM/FM tuner with 30 station presets. Op-eration of the tuning functions involves theuse of a row of numeric buttons and five largebuttons below the MASTER VOLUME knob.
BAND Button
The BAND button selects whether the tuneris in AM or FM mode. Press the button totoggle back and forth between AM and FM.A corresponding indicator will light at theleft portion of the front panel display toconfirm your choice and the currently tunedstation frequency will be shown.
TUNING Button
This rocker switch (or pair of buttons labeledCH UP/DOWN on the remote control) pro-vides two different tuning functions, depend-ing on the mode of operation.
In the normal FREQUENCY TUNINGmode, press a TUNING button and releaseto manually jump to the next station frequency,regardless of whether or not a station isbroadcasting on that frequency. For auto scantuning, press and hold the TUNING buttonfor approximately one second. An AUTO in-dicator will appear in the front panel dis-play and the tuner will begin automaticallyscanning up or down through the frequen-cies until the next available station is detected.If this is not the desired station, repeat theautomatic tuning procedure to find the nextstation. Weak stations will be skipped dur-ing auto tuning.
In the PRESET TUNING mode, press aTUNING button and release to jump to thenext memorized station preset. Switch be-tween FREQUENCY and PRESET tuningmodes by pressing the SHIFT button and thenthe BAND/TV button on the remote control.A PRESET indicator appears in the displaywhen PRESET TUNING is activated.
NOTE: Several indicators in the front paneldisplay assist tuning. A large display showsthe tuned frequency and increases or de-creases during tuning. A TUNED indicatorlights when a sufficiently strong signal isreceived. A ST indicator lights when a ste-reo FM signal is received.
NUMERIC Buttons: StationPresets
The RX-975 can store up to 30 station pre-sets for recall at any time using the NUMERICbuttons. To memorize a station:
1. Tune to the desired station, AM or FM.
2. Press the MEMORY button on the frontpanel. A MEMORY indicator will flashfor five seconds in the front panel display.
3. While the MEMORY indicator is flashing,press the number of the preset where youwish to store the station frequency. Forexample, to memorize the station aspreset 3, press the 3 button. To memo-rize preset 15, press the 1 button followedby the 5 button.
4. A previously stored frequency is erasedfrom memory when a new frequency ismemorized for the same preset number.
To tune to a previously memorizedstation, just press the preset numberon the NUMERIC buttons. For example,to tune to preset 3, press the 3 button. Totune to preset 15, press the 1 button andthen press the 5 button.
NOTE: If the TUNER is not already the se-lected INPUT SOURCE, selecting a stationpreset will automatically switch to theTUNER input and tune the memorized sta-tion.
The NUMERIC buttons can also be used fordirect access tuning (see below).
FREQUENCY DIRECT Button
If you know the frequency of the desiredstation, you may tune it directly using theFREQUENCY DIRECT button and the NU-MERIC buttons.
1. Press the FREQUENCY DIRECT button tochange the NUMERIC buttons from sta-tion preset to Direct Access mode. Thestation frequency in the front panel dis-play will change to a series of four bars,representing the digits of a station fre-quency, with the first bar flashing.
2. Enter the first digit of the station frequencyusing the NUMERIC buttons. The digit willappear in the frequency display and thesecond bar will flash. Enter the remain-ing digits of the frequency. When all ofthe digits have been entered, the tunerwill automatically tune to the displayedstation frequency.
NOTE: On the USA version only, pressing1 in the FM mode will enter 10 as thedigit in the frequency display. On the Eu-ropean version, it is necessary to press 1and then 0 to enter 10. For US FM sta-tions, press only one digit following thedecimal point as shown in the first ex-ample below. For European FM stations,press two digits following the decimalpoint as show in the second example.
EXAMPLES:
(USA FM) 87.50MHz Press 8>7>5(Europe FM) 87.50MHz Press 8>7>5>0(all AM) 1610kHz Press 1>6>1>0
MONO Button
The MONO button changes the FM modefrom stereo reception to mono reception. Instereo mode, a stereo signal will be heardif the station is broadcasting a stereo sig-nal and there is sufficient signal strength. Astereo indicator will light in the front paneldisplay. In mono mode, a mono signal willbe heard even if the station is broadcastinga stereo signal.
NOTE: Switching to mono mode can be auseful way to improve the reception of weakor distant FM signals. Less signal strengthis required for clean mono reception thanfor stereo reception.
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RR-949 Remote ControlThe RX-975 includes a handheld remotecontrol that does far more than operate theRX-975. The RR-949 is a full-function program-mable remote control that can operate upto 8 audio/video components.
A separate manual, included with the remote,gives detailed information on programmingand using the RR-949 to replace all of theremote controls in your system. This sectionis intended to provide only that informationwhich pertains to the use of the RR-949 tooperate the RX-975.
NOTE: Many functions duplicate the RX-975front panel controls and are listed here onlyfor your reference. Please refer to the pre-vious Front Panel Controls section of thismanual if you need additional information.
AUDIO Button
To operate the RX-975 with the remote, makesure that the AUDIO mode is active by press-ing the AUD button on the remote before youstart. If it is active, pressing command keyson the RR-949 will cause the AUDIO buttonto flash red. Once the AUDIO mode is ac-tive, it will stay active unless you press oneof the other DEVICE buttons to control a dif-ferent component.
Programming the RR-949
The RR-949 is preprogrammed from thefactory to operate the RX-975. Should theAUDIO command set on your RR-949 notoperate the RX-975, it’s possible that theprogramming has been inadvertentlychanged. To program the remote tooperate the RX-975, set the AUDIOCode = 001:
1. Press the AUDIO button at the top of theremote while simultaneously pressing theMUTE button and hold both for at leastone second. The AUDIO button will lightin red for 20 seconds, indicating that youhave entered the program mode. The nextstep must be done within this 20 secondperiod, or the RR-949 will revert to itsstandard operating mode.
2. Use the NUMERIC buttons to enter the3-digit code (001) for the RX-975 – press0, then 0, then 1. The AUDIO button willflash each time you enter a digit.
3. Store the code number by pressing thecorresponding AUDIO button again. Thebutton will blink twice to confirm the stor-age of the code in memory.
POWER Button
Duplicates the function of the STANDBYswitch on the front panel. Press to activatethe RX-975. Press again to deactivate. Themain POWER button on the front panel mustbe in the ON position for the remote standbyfunction to operate.
VOLUME Buttons
A pair of buttons which duplicate the func-tion of the front panel volume control. PressVOLUME UP to increase the volume and pressVOLUME DOWN to decrease the volume.
SHIFT Button
Used to access secondary functions on sev-eral RR-949 buttons. Press the SHIFT buttonand then the desired button.
MUTE Button
Push this button once to turn the sound off.A mute indication will appear in the frontpanel display. Press the MUTE button againto restore previous volume levels.
PRESET AUTO SCAN Button[SHIFT] MUTE
This shift function activates a PRESET SCAN-NING feature. Press the SHIFT button andthen the MUTE button to scan through allmemorized station presets, playing each forfive seconds before moving to the next. Tostop the station scanning on the desired sta-tion preset, press the MUTE button again.
TV/BAND Button
Duplicates the AM/FM button on the frontpanel. Toggles between AM and FM modes.
TUNE/PRESET Button[SHIFT] TV/BAND
The TUNE/PRESET button toggles betweenFREQUENCY TUNING mode (the CH TUN-ING buttons advance to the next station fre-quency) and PRESET TUNING mode (the CHTUNING Buttons advance to the next memo-rized station preset). To change modes, pressthe SHIFT button and then the TV/BAND but-ton. A PRESET indicator in the front panelDISPLAY will light when the PRESET modeis active.
CH TUNING Buttons
A pair of buttons, labeled CH UP/DOWN,which duplicates the functions of the frontpanel TUNING button.
In the normal FREQUENCY TUNINGmode, press a CH button and release tomanually jump to the next station frequency,regardless of whether or not a station isbroadcasting on that frequency. For auto scantuning, press and hold the CH button for ap-proximately one second. An AUTO indica-tor will appear in the front panel display andthe tuner will begin automatically scanningup or down through the frequencies until thenext available station is detected. If this isnot the desired station, repeat the automatictuning procedure to find the next station.Weak stations will be skipped during autotuning.
In the PRESET TUNING mode, press aCH button and release to jump to the nextmemorized station preset. Switch betweenFREQUENCY and PRESET tuning modes bypressing the SHIFT button and then theBAND/TV button on the remote control. APRESET indicator appears in the display whenPRESET TUNING is activated.
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INPUT SOURCE Buttons
Two rows of buttons duplicate the functionof the ten INPUT SOURCE buttons on the frontpanel. Select an input source by pressingthe appropriate button. The AUX 1 and AUX2 buttons correspond to the front panelVIDEO 4 and VIDEO 5 buttons.
NUMERIC Buttons
Ten numeric buttons, labeled 0 through 9,duplicate the function of the NUMERIC but-tons on the front panel. Selects memorizedstation presets.
Rear Panel ConnectionsThe RX-975 provides rear panel connectionsfor five video sources, three audio sources,and a phono input for use with a turntable.These connections include standard RCAaudio inputs and outputs plus composite videoinputs and outputs.
The RX-975 includes two pairs of speakerconnections for the built-in power amplifieras well as RCA preamp outputs for use withexternal amplifiers. In addition, a compos-ite video output connects the unit to your TVmonitor.
NOTE: DO NOT plug any system compo-nent into an AC source until system hookupis complete and you are confident that allcomponent-to-component connections havebeen properly made.
All video cables should have a 75ohm impedance rating. Although con-ventional audio interconnects will pass avideo signal, their construction and limitedbandwidth impose a performance penaltybecause, in part, they do not adhere to the75 ohm standard.
When making signal connections, make surethat you always preserve proper channel con-sistency, i.e. connect LEFT channels to LEFTchannel jacks and RIGHT channels to RIGHTchannel jacks. All RCA-type connections onthe RX-975 follow these standard color codes:
Left audio: RCA jack with white insetRight audio: RCA jack with red insetVideo: RCA jack with yellow inset
Connect your audio-only source componentsto these RCA inputs and outputs:
Phono Inputs and PhonoGround
Connect the left and right output cables ofa turntable to this pair of RCA inputs. Con-nect the ground wire from your turntable tothe phono ground lug, labeled GND.
CD Inputs
Connect the left and right analog outputs froma CD player to the RCA input jacks labeledCD.
Tape Inputs and Outputs
The RX-975 provides two sets of audio tapeconnections labeled TAPE 1 and TAPE 2. Eachhas a pair of inputs and a pair of recordoutputs that allow recording on either tapedeck.
Connect the left and right analog outputs froman audio tape deck to the TAPE 1 IN inputjacks. Connect the TAPE 1 OUT output jacksto the INPUTS on the audio tape deck.
Connect a second tape deck to the TAPE 2connections – the outputs of the tape deckto the IN jacks on the RX-975 and the OUTjacks on the RX-975 to the inputs on the tapedeck.
VIDEO 1 Inputs/Outputs
There are groups of connections for up tofive video source components. Each groupincludes a pair of RCA analog audio inputsand a composite video input. One group,VIDEO 1, also includes a set of record out-puts for sending audio and video signals toa VCR.
Connect your VCR to the VIDEO 1 groupof inputs and outputs. This set of connectionsallows recording.
Connect the analog audio outputs of theVCR to the VIDEO 1 PLAY left and right RCAaudio jacks. Connect the VIDEO 1 REC leftand right RCA audio output jacks to the audioinputs on the VCR.
Connect the RCA composite video outputof the VCR to the RCA composite video inputlabeled VIDEO 1 PLAY.
Hookup the VIDEO 1 REC video output tothe RCA composite video recording input onyour VCR.
VIDEO 2 – 5 Inputs
These four sets of audio/video inputs allowconnection of four additional video compo-nents such as a play-only VCR, DVD player,LaserDisc player, or DSS satellite receiver.
Connect the RCA analog audio outputs ofthe first video component to the left and rightRCA analog audio inputs labeled VIDEO 2.Then, connect the RCA composite videooutput of the video source to the correspond-ing RCA composite connection labeledVIDEO 2.
Repeat for additional components, usingVIDEO 3, VIDEO 4, and AUX/VIDEO 5.
NOTE: Any of the video source inputs mayalso be used for an audio-only source. Sim-ply omit the video connection.
TV Monitor Output
The video output of the RX-975 sends thevideo signal to your TV monitor. Connect theTV MONITOR output to an RCA compositevideo input on your television monitor. What-ever input source is selected on the RX-975will appear on screen.
Speaker Outputs
The RX-975 has a built-in stereo amplifierfor driving left and right speakers. There aretwo pairs of connections on the back panelwhich allow you to connect two pairs ofspeakers (A and B) and select them with afront-panel button.
NOTE: The combined speaker impedancemust be a minimum of 4 ohms. If you aredriving just one pair of speakers (A or Bconnections), use speakers with a nominalimpedance of 4 ohms or higher. If you aredriving two pairs of speakers (A and B) si-multaneously, use speakers rated at 8 ohmsor higher.
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The back panel speaker connections con-sist of two groups of binding posts whichaccept bare wire or banana type plug con-nectors (except in the European Communitycountries where their use is not permitted).One group is used for the A speakers; theother for the B speakers. Each group has apositive (+) and negative (–) connection forthe right speaker and a positive (+) andnegative (–) connection for the left speaker
Each pair of connectors is color-coded forpolarity: red for the positive connection andblack for the negative connection. All speak-ers and all speaker wire is also marked forpolarity. It is essential for proper performanceto maintain this polarity at all speaker con-nections. Always connect the positive terminalof each speaker to the corresponding redspeaker terminal on the RX-975 and thenegative speaker terminal to the correspond-ing black connector on the RX-975.
Route the wires from the RX-975 to the speak-ers. Give yourself enough slack so you canmove the components to allow access to thespeaker connectors. If you are using bananaplugs, connect them to the wires and thenplug into the backs of the binding posts. Thecollars of the binding posts should be screwedin all the way (clockwise). If you are attachingbare wires directly to the binding posts,separate the wire conductors and strip backthe insulation from the end of each conduc-tor. Be careful not to cut into the wire strands.Unscrew the binding post collars. Insert thewire into the hole in the shaft. Turn the col-lars clockwise to clamp the wire in place.
NOTE: Be sure there are no loose wirestrands that could touch adjacent wires orconnectors.
Preamp Inputs/Outputs
The RX-975 provides a pair of variable-levelRCA preamp audio outputs and a pair ofRCA amplifier inputs that allow you to useexternal amplifiers in place of, or in addi-tion to, the built-in amplifiers.
NOTE: The preamp outputs are connectedto power amplifier inputs with metal jump-ers in a standard PRE OUT/MAIN IN con-figuration. To disable the built-in poweramplifiers and use external amplifiers, it willbe necessary to remove these jumpers. Savethem for future use.
To hook up the RCA audio outputsto an external amplifier, connect a standardaudio cable from each output to the inputof the amplifier channel that will power thecorresponding speaker.
Antenna ConnectionsThe RX-975 requires two antennas to receiveradio signals, one for AM and one for FM.Most users will get acceptable reception usingthe indoor antennas which are supplied withthe RX-975. Instructions for hooking up theseantennas follow.
NOTE: If you are located a long distancefrom the radio transmitters, you may usean outdoor antenna to improve reception.Outdoor antenna systems can be danger-ous if they are not properly grounded andshould be installed by a professional con-tractor familiar with the electrical code re-quirements in your local area.
AM Loop Antenna
The RX-975 includes a loop antenna to re-ceive AM radio signals. Remove this antennafrom the box and locate it near the RX-975.
Connect the 300 ohm twin-conductor wirefrom the loop antenna to the pair of screwterminals labeled AM LOOP, attaching onewire to each terminal. It does not matter whichwire attaches to which terminal, but makesure that the connections are solid and thatthe two wires do not touch.
You may need to rotate or otherwise reori-ent the antenna to find the best position.
NOTE: To use an outdoor antenna, connectits 300 ohm twin-conductor wire to the AMterminals in place of the loop antenna, onlyafter a professional contractor has installedthe antenna system in accordance with lo-cal electrical codes.
FM Wire Antenna
The RX-975 includes a wire antenna to re-ceive FM signals. In many countries (includingthe USA), this antenna is a T-shaped twin-conductor 300 ohm antenna. Remove thisantenna from the box and connect its twoconductors to the two screw terminals on thesupplied 300 ohm to 75 ohm adaptor. Con-nect the coax plug on the converter to theFM 75 ohm antenna connector on theRX-975.
For best reception, unfold the T-shaped wireantenna. There are eyelets at both ends ofthe T, which allow tacking the antenna to awall, if desired. Experiment with position-ing for best reception.
In some countries, the RX-975 may be sup-plied with a single wire FM antenna termi-nated by a 75 ohm coax connector. If yourunit is supplied with this antenna, connectit directly to the FM 75 ohm antenna con-nector.
NOTE: To use an outdoor antenna, connectits 75 ohm coax lead wire (or 300 ohmtwin-conductor wire and 300 ohm to 75ohm adaptor) to the FM 75 ohm connectorin place of the indoor wire antenna, onlyafter a professional contractor has installedthe antenna system in accordance with lo-cal electrical codes.
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14RX-975 AM/FM Stereo Receiver
AC Power Connections
AC Input
Your RX-975 is configured at the factory forthe proper AC line voltage in the countrywhere you purchased it (120 volts AC, 60Hzin the US or 230 volts AC, 50Hz in theEuropean community). The AC line configu-ration is noted on a decal on the back ofyour unit.
Plug the supplied cord into the AC INPUTreceptacle on the back of the unit.
AC Convenience Outlet [USA version only]
Two AC outlets let you plug a power cordfrom a source component or other accessoryinto the back of the RX-975 so that it willbe turned on and off automatically. The outletis powered whenever the RX-975 is fullyactive and off when it is in STANDBY mode.
Remote External Sensor
This 3.5 mm mini-jack receives commandcodes from industry-standard infrared receiv-ers (Xantech, etc.) via hard-wired connec-tions. This feature could prove useful whenthe unit is installed in a cabinet and the front-panel sensor is blocked. Consult your au-thorized Rotel dealer for information on theseexternal repeaters and the proper wiring ofa jack to fit the mini-jack receptacle.
15
AudioContinuous Amplifier Power: 100 watts/channel
(20–20k Hz, <0.05% THD, 8 ohms)
Total Harmonic Distortion: <0.05% at rated power
Intermodulation Distortion (60 Hz: 7 kHz): <0.05% at rated power
Frequency Response: Line Level: 10 Hz - 70 kHz, ±3 dBPhono: 20 Hz - 20 kHz, ±1.5 dB
Signal to Noise Ratio (IHF “A” weighted): 92 dB
Input Overload: Line Inputs: 5 VPhono Inputs: > 120 mV
Preamplifier Output Voltage: 1.1 V
Input Sensitivity/Impedance: Line Level: 200 mV/47 kohmsPhono: 3.1 mV/47 kohms
Tone Controls (Bass/Treble): ±8 dB at 100 Hz/10 kHz
VideoFrequency Response: 3 Hz-10 MHz, ± 3 dB
Signal to Noise Ratio: 45 dB
Input Impedance: 75 ohms
Output Impedance: 75 ohms
Output Level: 1 volt
FM TunerUsable Sensitivity: 14.2 dBf
50dB Quieting Sensitivity: 20.2 dBf (mono)45.3 dBf (stereo)
Signal to Noise Ratio (at 65 dBf): 70 dBf (mono)65 dBf (stereo)
Harmonic Distortion (at 65 dBf): 0.3% (mono)0.5% (stereo)
Frequency Response: 30 Hz-14 kHz, ± 1.5 dB
Capture Ratio: 2.0 dB
Alternate Channel Selectivity: 47 dB (± 400 kHz)
Spurious Response Ratio: 80 dB
Image Response Ratio: 65 dB
IF Response Ratio: 80 dB
AM Suppression Ratio: 52 dB
Stereo Separation (100Hz/1 kHz/10 kHz): 40 dB/45 dB/35 dB
Output level: 550 mV
Antenna Input: 75 ohms unbalanced
AM TunerSensitivity: 500 µV/m
Selectivity: 25 dB
Image Response Ratio: 35 dB
Signal to Noise Ratio: 40 dB
Output level: 160 mV
Antenna Input: Loop Antenna
GeneralPower Consumption: 350 watts
Power Requirements (AC): 120 volts, 60 Hz (USA version)230 volts, 50 Hz (European version)
Weight: 11.5 Kg/25.4 lb.
Dimensions (W x H x D): 450 x 158 x 400 mm173/4" x 61/4" x 153/4"
SpecificationsAll specifications are accurate at the time ofprinting.
Rotel reserves the right to make improvementswithout notice.
Rotel and the Rotel HiFi logo are registeredtrademarks of The Rotel Co, Ltd., Tokyo, Japan.
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The Rotel Co. Ltd.10-10 Shinsen-Cho
Shibuya-KuTokyo 150-0045
JapanPhone: +81 3-5458-5325Fax: +81 3-5458-5310
Rotel of America54 Concord Street
North Reading, MA 01864-2699USA
Phone: +1 978-664-3820Fax: +1 978-664-4109
Rotel EuropeMeadow Road
Worthing, West Sussex BN11 2RXEngland
Phone: +44 (0)1903 524 813Fax: +44 (0)1903 524 831
Rotel DeutschlandKleine Heide 12
D-33790 Halle/Westf.Germany
Phone: +49 05201-87170Fax: +49 05201-73370
082 OMRX-975ENG 042499
