Stereo AM/FM Receiver

GB Owners Manual F D E I P S Manuel dInstallation Bedienungsanleitung Manual del Usuario Manuale delle Istruzioni Manual do Proprietrio Bruksanvisning
IMPORTANT SAFETY INSTRUCTIONS

CAUTION ATTENTION:

RISK OF ELECTRIC SHOCK DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
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.
Warning: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products 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 product. Do not place this unit on an unstable cart, stand or tripod, bracket or table. The unit may fall, causing serious injury to a child or adult and serious damage to the unit. Use only with a cart, stand, tripod, bracket or table recommended by the manufacturer or sold with the unit. Any mounting of the device on a wall or ceiling should follow the manufacturers instructions and should use a mounting accessory recommended by the manufacturer. 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.
POUR VITER LES CHOC ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQUAU FOND. TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERT.
If an indoor antenna is used (either built into the set or installed separately), never allow any part of the antenna to touch the metal parts of other electrical appliances such as a lamp, TV set etc.

ATTENTION

CAUTION

CAUTION POWER LINES

Any outdoor antenna must be located away from all power lines.
OUTDOOR ANTENNA GROUNDING
If an outside antenna is connected to your tuner or tunerpreamplifier, be sure the antenna system is grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA No. 70-1984, provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes and requirements for the grounding electrode. a. Use No. 10 AWG (5.3mm2) copper, No. 8 AWG (8.4mm2) aluminium, No. 17 AWG (1.0mm2) 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 leadin enters house. d. Use jumper wire not smaller than No.6 AWG (13.3mm2) copper, or the equivalent, when a separate antenna-grounding electrode is used. see NEC Section 810-21 (j). EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS CONTAINED IN ARTICLE 810 - RADIO AND TELEVISION EQUIPMENT.
Read and follow all the safety and operating instructions before connecting or using this unit. Retain this notice and the owners manual for future reference. All warnings on the unit and in its operating instructions should be adhered to. Do not use this unit near water; for example, near a bath tub, washbowl, kitchen sink, laundry tub, in a wet basement or near a swimming pool. The unit should be installed so that its location or position does not interfere with its proper ventilation. For example, it 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 its ventilation openings. The unit should be situated from heat sources such as radiators, heat registers, stoves or other devices (including amplifiers) that produce heat. The unit should be connected to a power supply outlet only of the voltage and frequency marked on its rear panel. The power supply cord should be routed so that it is not likely to be walked on or pinched, especially near the plug, convenience receptacles, or where the cord exits from the unit. Unplug the unit from the wall outlet before cleaning. Never use benzine, thinner or other solvents for cleaning. Use only a soft damp cloth. The power supply cord of the unit should be unplugged from the wall outlet when it is to be unused for a long period of time. Care should be taken so that objects do not fall, and liquids are not spilled into the enclosure through any openings. This unit should be serviced by qualified service personnel when: A. The power cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the unit; or C. The unit has been exposed to rain or liquids of any kind; or D. The unit does not appear to operate normally or exhibits a marked change in performance; or E. The device has been dropped or the enclosure damaged.

NOTE TO CATV SYSTEM INSTALLER: This reminder is provided to call the CATV system installers attention to Article 820-40 of the National Electrical Code that provides guidelines for proper grounding and, in particular, specifies that the ground cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical.
DO NOT ATTEMPT SERVICING OF THIS UNIT YOURSELF. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
Upon completion of any servicing or repairs, request the service shops assurance that only Factory Authorized Replacement Parts with the same characteristics as the original parts have been used, and that the routine safety checks have been performed to guarantee that the equipment is in safe operating condition. REPLACEMENT WITH UNAUTHORIZED PARTS MAY RESULT IN FIRE, ELECTRIC SHOCK OR OTHER HAZARDS.

REAR PANEL CONNECTIONS

FRONT PANEL CONTROLS
NAD C740 Stereo AM/FM Receiver
NOTES ON INSTALLATION Your NAD C740 should be placed on a firm, level surface. Avoid placing the unit in direct sunlight or near sources of heat and damp. Allow adequate ventilation. Do not place the unit on a soft surface like a carpet. Do not place or it in an enclosed position such a bookcase or cabinet that may impede the air-flow through the ventilation slots. Make sure the unit is switched off before making any connections. The RCA sockets on your NAD C740 are colour coded for convenience. Red and white are Right and Left audio respectively, and yellow for NAD Link. Use high quality leads and sockets for optimum performance and reliability. Ensure that leads and sockets are not damaged in any way and all sockets are firmly pushed home. For best performance, use quality speaker leads of 16 gauge (1.5mm) thickness or more. If the unit is not going to be used for some time, disconnect the plug from the AC socket. Should water get into your NAD C740, shut off the power to the unit and remove the plug from the AC socket. Have the unit inspected by a qualified service technician before attempting to use it again. Do not remove the cover, there are no userserviceable parts inside. Use a dry soft cloth to clean the unit. If necessary, lightly dampen the cloth with soapy water. Do not use solutions containing benzol or other volatile agents. QUICK START 1. Connect the speakers to the rear Speaker sockets and sources to the relevant rear input sockets. 2. Plug in the AC power cord. 3. Press the POWER button (No. 1) to turn on the NAD C740. 4. Press the required input selector. 5. For radio listening, connect AM and FM antenna. 6. Press the AM/FM button (No. 11) to select AM or FM reception. 7. Press Search/Preset (No. 13) until SEARCH is indicated in the display to select Search mode. 8. Use Tune/Preset (No. 19) to select a station. REAR PANEL CONNECTIONS 1. DISC INPUT Input for additional line level input signals such as CD, Mini Disc player or the output signal from a step-up amplifier for a turntable. Use a twin RCA-to-RCA lead to connect the auxiliary units left and right Audio Outputs to this input. 2. CD INPUT Input for a CD or other line-level signal source. Use a twin RCAto-RCA lead to connect the CD players left and right Audio Outputs to this input. The NAD C740 only accepts analogue signals from your CD player. 3. VIDEO INPUT Input for the audio signal from a stereo VCR (or stereo TV/Satellite/Cable receiver) or other line-level audio source. Using twin RCA-to-RCA leads, connect to the left and right Audio Out of the unit to these inputs. Note: These are audio inputs only. 4 4. AUX INPUT Input for additional line level input signals such as another CD player. Use a twin RCA-to-RCA lead to connect the auxiliary units left and right Audio Outputs to this input. 5. TAPE 1 IN, OUT Connections for analogue recording and playback to an audio tape recorder of any type. Using twin RCA-to-RCA leads, connect to the left and right Audio Output of the tape machine to the TAPE 1 IN sockets for playback and tape monitoring. Connect the left and right Audio Input of the tape machine to the TAPE 1 OUT sockets for recording. 6. TAPE 2 IN, OUT Connections for analogue recording and playback to a secondary audio tape recorder of any type. Using twin RCA-to-RCA leads, connect to the left and right Audio Output of the tape machine to the TAPE 2 IN sockets for playback and tape monitoring. Connect the left and right Audio Input of the tape machine to the TAPE 2 OUT sockets for recording. 7. PRE OUT Connections to an external power amplifier or processor, such as a surround-sound decoder. In normal use these should be connected to the Main-In sockets (No. 8) with the links supplied. To connect your NAD C740 to external processor or amplifier sections first remove these links. Use a twin RCA-to-RCA lead to connect to the left and right Audio Input of the Power amp or processor to the Pre Out sockets. NOTE: The Pre-Out output signal will be affected by the NAD C740s volume and tone control settings, always turn the receiver off before connecting or disconnecting anything from to Pre-Out and Main-In sockets. 8. MAIN IN Connections to an external pre-amplifier or processor, such as a surround-sound decoder. In normal use these should be connected to the Pre-Out sockets (No. 7) with the links supplied. To connect your NAD C740 to external processor or pre-amplifier first remove these links. Use a twin RCA-to-RCA lead to connect to the left and right Audio Output of the pre-amp or processor to the Main-In sockets. NOTE: Always turn the receiver off before connecting or disconnecting anything from to Pre-Out and Main-In sockets. 9. AM ANTENNA An AM loop antenna is supplied with the NAD C740 and is required for AM reception. To connect the AM antenna, first press the keys on the Antenna terminals downwards. Insert the bare antenna wires into the two terminal holes and push the connector keys upwards again to secure the connection (see fig 2). Test various positions for the antenna but always ensure the loop is placed vertically for best reception. Placing the antenna close to large metal items such as metal shelves or radiators may interfere with reception.

10. FM ANTENNA A ribbon wire FM antenna is included and should be connected to the FM connector at the rear of the unit (The 120V versions (North America) should use the balun adapter supplied - see fig 1). The ribbon aerial should be mounted on a vertical surface and placed so that it forms a T. Experiment with placement of the antenna to find the position that gives the best signal strength and lowest background noise. An inadequate FM signal normally results in high levels of hiss, especially in stereo, and interference from external electrical sources. In areas of poor FM reception, the tuner sections performance can be improved by using an externally mounted FM antenna. A qualified aerial installer will be able to advise and fit a recommended aerial for your reception conditions. 11. SOFT CLIPPING When an amplifier is driven beyond its specified power output, a hard, distorted sound can be heard on very loud sounds. This is caused by the amplifier cutting off or hard clipping the peaks of sound that it was not designed to reproduce. The NAD Soft Clipping circuit gently limits the output of the system to minimise audible distortion if the amplifier is overdriven. If your listening involves moderate power levels you may leave the Soft Clipping switch to Off. If you are likely to play at high levels, that could stretch the amplifiers power capability, then switch Soft Clip On. SOFT CLIPPING lights up in the display area when the receiver is in Soft Clip mode. 12. SPEAKERS A + SPEAKERS B The NAD C740 is equipped with two sets of speaker connectors. Use the Speakers A connectors for the main speakers and use the Speakers B connectors for a second pair, for example, extension speakers located in another room. Connect the right speaker to the terminals market R + and R- ensuring that the R+ is connected to the + terminal on your loudspeaker and the R- is connected to the loudspeakers - terminal. Connect the terminals marked L+ and L- to the left speaker in the same way. Always use heavy duty (16 gauge; 1.5mm, or thicker) stranded wire to connect loudspeakers to your NAD C740. The high-current binding post terminals can be used as a screw terminal for cables terminating in spade or pin sockets or for cables with bare wire ends. BARE WIRES AND PIN CONNECTORS Bare wires and pin sockets should be inserted into the hole in the shaft of the terminal. Unscrew the speaker terminals plastic bushing until the hole in the screw shaft is revealed. Insert the pin or bare cable end into the hole and secure the cable by tightening down the terminals bushing. (see fig 3) Ensure bare wire from the speaker cables does not touch the back panel or another socket. Ensure that there is only 1/2 (1cm) of bare cable or pin and no loose strands of speakers wire. NOTE: Make sure the speaker impedance is 4 ohms or more when connecting only one pair of speakers; make sure the speaker impedance for all speakers is over 8 ohms when connecting two sets of speakers.

13. NAD LINK IN, OUT The NAD-Link connector is used to pass commands from other units fitted with NAD-Link connectors. This allows centralised control of a complete system, and also allows some of the basic functions of other NAD components (such as a CD player or cassette-deck) also equipped with NAD-Link to be controlled with the receivers remote control. To function with such other units, connect the C740s NAD-Link Out to the NAD-Link In on the other unit. NAD-Link connectors can be daisy-chained, IN to OUT, so that a whole system can be controlled from the remote control facilities of one unit. 14. AC LINE CORD Plug the AC power cord into a live AC wall socket. Make sure all connections have been made before connecting to mains. FRONT PANEL CONTROLS 1. POWER ON/OFF Press the POWER button to switch the receiver to its Stand-by mode. The Stand-by indicator (No. 4) over the power button will light up. On the front panel, press any of the input selector buttons to switch to receiver on. From the remote control, press the green Stand-by button (located just over the Speakers A and B buttons) to switch the unit on. The display will light up indicating which input was selected, the Stand-by indicator will extinguish. Pressing the POWER switch again will turn the unit OFF completely. The NAD C740 receiver uses a memory back-up system to store preset station information for the tuner section. This information is retained for several weeks, even the unit is switched off completely or unplugged. REMOTE CONTROL STAND-BY button (green): Press this button to switch the unit from operating to the Stand-by mode and vice versa: Press this button again to switch to unit on from Stand-by; the last selected source will be indicated in the display. NOTE: Stand-by mode is indicated by the Stand-by indicator (No. 4) just over the green POWER button on the front panel (No. 1) In Stand-by mode the C740 uses very little power. However, it is recommended that you switch the unit totally off if it is not going to be used for more than a couple of days. Switch off completely by pressing the POWER button on the front panel (No. 1), all lights will extinguish. 2 + 3. SPEAKERS A; SPEAKERS B The A and B buttons engage or disengage the speakers connected to respectively the Speakers A and Speakers B terminals on the rear panel. Press A to switch the speakers connected to the speaker A terminals On or Off. Press B to switch the speakers connected to the speaker A terminals On or Off. The status of speakers A and B On or Off is indicated in the upperleft corner of the display area. If Speakers A and B are both engaged (shown by SPEAKERS A B in the display area), the amplifiers output power is fed to both sets of speakers in parallel. If speakers A and B both are disengaged, both sets of speakers are silenced. You can use this setting mode to listen to headphones (No. 5). NOTE: Always turn the volume down when engaging or disengaging either Speaker A or Speaker B. 5

4. STAND-BY INDICATOR This green LED will light up when the receiver is switched On, but in Stand-by mode. Refer to section 1 in this chapter for more information. The LED will also light up when the receiver receives a remote control command from the supplied handset. NOTE: The Stand-by Indicator will start to flash if the receiver has gone into protection mode. This can occur if there is a short circuit in the speaker wiring. Switch the unit off totally using the power button on the front panel (No.1) and check all cables and connections, both at the receiver side and all loudspeakers side. Once all connections have been properly restored, switch Power (No.1) to Stand-by. Press one of the input buttons (No. 10) or the green Stand-by button on the remote control to switch On from Stand-by and resume normal operation. If the problem persists, switch power off totally (No. 1) and consult your dealer. 5. HEADPHONE SOCKET A 1/4 stereo jack socket is supplied for headphone listening and will work with conventional headphones of any impedance. The volume, tone and balance controls are operative for headphone listening. Use a suitable adapter to connect headphones with other types of sockets, such as 3.5mm stereo personal stereo jack plugs. Use the Speaker A and/or Speaker B buttons (No. 2 + 3) to turn off the loudspeakers. NOTE: Make certain that the volume control is turned to minimum (fully anti-clockwise) before connecting or disconnecting headphones and engaging or disengaging Speakers A and/or Speakers B. Listening at high levels can damage your hearing. 6. VOLUME The VOLUME control adjusts the overall loudness of the signals being fed to the loudspeakers. It is motor driven and can be adjusted from the remote control handset. The VOLUME control does not affect recordings made using the Tape outputs but will affect the signal going to the Pre-amp output (Pre Out). On the remote control handset, press the MUTE Button to temporarily switch off the sound to the speakers and headphones. Mute mode is indicated by AUDIO MUTE flashing in red in the display area. Press MUTE again to restore sound. Mute does not affect recordings made using the Tape outputs but will affect the signal going to the Pre-amp output (Pre Out). 7. BASS & TREBLE CONTROLS The NAD C740 is fitted with BASS and TREBLE tone controls to adjust the tonal balance of your system. The 12 oclock position is flat with no boost or cut and a detent indicates this position. Rotate the control clockwise to increase the amount of Bass or Treble. Rotate the control anti-clockwise to decrease the amount of Bass or Treble. The Tone controls do not affect recordings made using the Tape outputs but will affect the signal going to the Pre-amp output (Pre Out).
8. BALANCE The BALANCE control adjusts the relative levels of the left and right speakers. The 12 oclock position provides equal level to the left and right channels. A detent indicates this position. Rotating the control clockwise moves the balance towards the right. Rotating the control anti-clockwise moves the balance to the left. The BALANCE control does not affect recordings made using the Tape outputs but will affect the signal going to the Pre-amp output (Pre Out). 9. TONE DEFEAT The TONE DEFEAT switch by-passes the tone control section of the NAD C740. If the Tone Controls are not normally used and left in the 12 oclock position, then it is advisable to switch out the Tone Control section altogether by using this switch. In the out position, the Tone Control circuits are active, pushing the TONE DEFEAT switch in bypasses the Tone Control section. 10. INPUT SELECTORS These buttons select the active input to the NAD C740 and the signal sent to the loudspeakers, the Tape outputs and the PRE OUT sockets. The buttons on the remote control handset duplicate these buttons, with the exception of the tuner input; see below. The display indicates which input has been selected. DISC Selects a line-level source connected to the DISC sockets as the active input. CD Selects the CD (or other line-level source) connected to the CD sockets, as the active input. VIDEO Selects the VCR (or stereo TV/Satellite/Cable receiver) connected to the VIDEO sockets, as the active input. AUX Selects a line-level source connected to the AUX sockets, as the active input. TUNER Selects the tuner as the active input. The receiver will return to the last selected preset or frequency. The remote control handset has separate buttons for AM and FM; pressing either one will select the tuner as the active input and revert to the last station tuned to on respectively the AM or FM band. TAPE 2 Monitor Selects the output from a tape recorder when playing back tapes or monitoring recordings being made through the Tape 2 sockets. Press the Tape 2 button once to select it and again to return to the normal input selection. Tape 2 is a tape Monitor function which does not override the current input selection. For example, if the CD is the active input when TAPE 2 is selected, then the CD signal will continue to be selected and sent to both the TAPE 1, and TAPE 2 OUTPUT sockets, but it is the sound from recorder connected to Tape 2 that will be heard on the loudspeakers. When Tape 2 Monitor is selected, TAPE 2 is indicated in the alphanumeric section of the display for 3 seconds before it defaults to indicating the active input again. The box just over the alphanumeric section indicating T-2 MONITOR will remain lit until Tape 2 is disengaged again. TAPE 1 Selects Tape 1 as the active input. NOTE: The remote control handset with the C740 supplied is of a universal NAD type, designed to operate several NAD models. Some buttons on this handset are inoperative as the functions arent supported by the C740. The Video 2 and Video 3 input selector buttons on the remote control handset are inoperative in the case of the C740. TO MAKE A RECORDING When any source is selected, its signal is also fed directly to any tape machine connected to the TAPE 1 or TAPE 2 OUTPUTS for recording.

TAPE TO TAPE COPYING You can copy between two tape machines connected to your NAD C740. Put the source tape in the recorder connected to Tape 1 and the blank tape into the recorder connected to Tape 2. By selecting TAPE 1 Input you can now record from Tape 1 to Tape 2 and monitor the signal coming from the original tape. 11. AM/FM The AM/FM button switches the tuner from the AM band to the FM band and vice-versa. The Display Panel shows the frequency of the tuned station and which band is selected. The FM tuning is in 0.025 MHz increments, AM tuning is in 9 kHz or 10 kHz increments, depending on the version. 12. BANK Pressing Bank switches between the C740s three Preset Memory Banks (A, B or C). Each of these banks can hold up to 10 Preset stations. These Banks can contain a mix of AM or FM stations each. The Bank selected is shown in the Display Panel. You can use the banks to sort your Presets, for instance by station type (Bank A for rock/pop; Bank B for Classical music; Bank C for Jazz). Refer to the separate chapter Storing, recalling and naming Presets for more information. The remote control handset also has a Bank button and performs the same fuction. 13. SEARCH/PRESET The Search/Preset button scrolls between three different tuning modes, each successive push of the button engages the next one of the three modes. a) Preset mode: In this mode you can use the Tune/Preset button (No. 19) to select a Preset. When Preset Mode is selected PRESET lights up in the display. b) Search mode: By pressing the Tune/Preset button (No. 19) or you can engage automatic tuning respectively up or down the frequency band. The tuner will search automatically for the first reasonably strong radio station, where it will stop. Press the Tune/Preset button again to start searching again. SEARCH lights up in the display. If a stereo station is received STEREO will light up in red in the display, unless FM Mute/Mode (No. 16) was engaged. c) Tune mode: By pressing the Tune/Preset button (No. 19) or you can engage manual tuning respectively up or down the frequency band for precise tuning to a specific frequency. Keep either one of the Tune/Preset buttons pressed until you are in the proximity of the desired frequency (use the to tune upwards in frequency; for downwards tuning). With each successive tap of the keys, the tuner will take 0.025 MHz steps on FM so you can accurately tune into the desired frequency. For AM the tuning steps can be 9 kHz or 10 kHz, depending on the version of your C740. This tuning mode can also be useful when trying to receive a radio station which is too weak for the Search mode. When tuned accurately to a station, >TUNED< will light up in the display. NOTE: The remote control handset has preset up/down buttons, which will allow direct selection of the desired preset. Use of these buttons will automatically switch the tuner section to Preset mode. NOTE: The Search/Preset buttons are also used in conjunction with the Memory (No. 15) and Tune/Search (No. 19) buttons to add and memorise user defined names to Presets. Refer to the separate chapter Storing, recalling and naming Presets for more information.

14. BLEND Weak or remote stereo radio stations are sometimes received with noise and hiss as the antenna signal is too weak. By switching the tuner to mono will reduce the amount of noise and hiss but at the expense of any stereo information. The NAD Blend feature will allow you to reduce the amount noise and hiss but still retain some level of stereo separation, instead of mono. The Blend button toggles between engaging or disengaging the Blend feature; when engaged, BLEND lights up in the display. 15. MEMORY The Memory is used to store stations into the three Preset Memory banks or to store user defined names for non-RDS Preset stations. Used in conjunction with the Search/Preset (No.13) and Tune/Preset (No. 19) buttons. When Memory is active, the Preset number flashes and the red MEMORY indicator is shown in the Display Panel. Refer to the separate chapter Storing, recalling and naming Presets for more information. NOTE: The 120V versions (North America) do not have RDS (Radio Data System). 16. FM MUTE/MODE This button combines two functions; it switches the tuner from Stereo to Mono and disengages the muting circuitry at the same time. The muting circuit will mute the tuner in between radio stations when searching or tuning. This way the tuning noise is avoided. Very weak radio station signals however may be suppressed by the muting circuit. if such a very weak station is in stereo it will have a high level of background hiss. Switching to Mono Mode and disengaging the muting circuit by depressing the FM MUTE/MODE button will allow the station to be heard and will cancel most or all of this background noise. In normal operation the mute circuit is engaged, the display indicates FM MUTE. Press the FM Mute/Mode button to disengage the muting circuit and switch from stereo to mono reception. FM MUTE in the display will extinguish. Press the FM Mute/Mode switch again to return to Auto Stereo FM operation. 17. PS/RT (ON RDS VERSIONS ONLY) With stations carrying RDS information, The PS/RT button scrolls between three different display modes, each successive push of the button engages the next one of the three modes: a) In the default mode, the stations RDS name is displayed, Program Service (PS; normally the stations calling letters, BBC R3, for instance). b) From the default mode, press the button once to view Radio Text (RT). This can be additional information such as the presenters or programs name; what song is playing, etc. This text scrolls continuously over the 8 alphanumeric display segments. It takes a few seconds for the tuner to gather the RT information, so immediately after tuning to a station and selecting to view RT the display will indicate WAIT and default to the station name. c) Press the button from the display RT mode to display the station frequency. Press again to return to the default mode (a). When tuned to a non-RDS station: The Display button toggles the display to show either the station frequency or user entered station name. If no user name was entered the display will just flash once. NOTE: The 120V versions (North America) do not have RDS (Radio Data System) 7

17. DISPLAY (ON NON-RDS VERSIONS ONLY) The Display button toggles the display to show either the station frequency or user entered station name. If no user name was entered the display will just flash once. 18. CHARACTER The Character Button is used to enter the names of Preset radio stations for display when the station is selected. Used together with the Tune/Preset (No. 19) and MEMORY (No. 15) Buttons. Refer to the separate chapter Storing, recalling and naming Presets for more information. 19. TUNE/PRESET AND The function of these buttons depends on the tuning mode indicated in the display and selected with the Search/Preset button (No. 13). In normal operation there are 3 modes: a) Preset mode: Press the button to scroll to a lower number Preset; press the button to scroll to a higher Preset number. This is a wrap-around function, so that going from the highest number Preset the tuner will go to the lowest Preset number when is pressed. b) Search mode: By pressing the Tune/Preset button (19) or you can engage automatic tuning respectively up or down the frequency band. The tuner will search automatically for the first reasonably strong radio station, where it will stop. Press the Tune/Preset button again to start searching again. c) By pressing the Tune/Preset button (No. 19) or you can engage manual tuning respectively up or down the frequency band for precise tuning to a specific frequency. REMOTE CONTROL The remote control handset has preset up/down buttons, which will allow direct selection of the desired preset. Use of these buttons will automatically switch the tuner section to Preset mode. Refer also to section 13 for additional information. NOTE: The Tune/Preset buttons are also used in conjunction with the Memory (No. 15) and Search/Preset (No. 13) buttons to add and memorise user defined names to Presets. Refer to the separate chapter Storing, recalling and naming Presets for more information. 20. DISPLAY PANEL The Display Panel shows information about the NAD C740 operating modes and information about the station currently selected. Speakers A, B, Soft Clipping, Audio Mute, T-2 Monitor, Blend, FM Mute, Stereo, Centre Tune, Bank, etc. are all indicated in this window. The display also has an eight character alphanumeric section, which will display the active input, station name, Radio Text or frequency.

STORING, RECALLING AND NAMING PRESETS To store a Preset: Tune to the radio station you wish to enter into a Preset (refer to chapter Front Panel Controls section 13). If the station is transmitting RDS information, the RDS indicator will light up and station initials will be shown in the Display Panel. If a nonRDS station is found, then just the frequency will be shown. To store that station as a Preset, press Memory (No. 15). The Memory indicator will be displayed and the Preset section will flash in the Display Panel. Press Bank (No. 12) to select which of the three Banks of Presets (A, B or C) you want to store the station into. Press either the Tune/Preset or button to select which Preset number you wish to assign to the station (from 1 to 10), shown as a flashing number in the Display Panel, and then press Memory (No. 15) again. The Memory light in the Display Panel will go out and the station is now stored in your NAD C740 memory. To exit the Memory mode without storing a station, leave all the tuner controls untouched; the Memory mode will automatically cancel itself after 8 seconds. The Memory Presets have a memory back-up, so they will remain stored for several weeks even if the Receiver is switched off or unplugged from the mains supply. NOTE: You can enter a new station into an unused Preset or overwrite an existing programmed Memory Preset. By doing this you will replace all the data previously held on that Preset number. RECALLING A PRESET STATION To select a Preset station, select the Preset mode by pressing the Search/Preset button (No. 13) until PRESET lights up in the display. By pressing the Bank button (No. 12) select which Bank of Presets you want to use (A, B or C, indicated in the display). Press either the Tune/Preset or buttons (No. 19) until the right Preset is found and shown in the Display Panel. Any unused Presets will be skipped and it is not possible to select a Bank unless it has at least one Preset stored into it. DELETING A STORED PRESET You can empty a Preset by deleting the stored information: Select the Preset to be emptied. Press the Memory button (No. 15), hold it down and press the FM Mute/Mode button (No. 16). The Preset will then be deleted and -- appears as the Preset number. You can also store a new station into a used Preset, by simply going through the Preset storing process and placing a new station over the existing one.
STORING A STATION NAME When a station is transmitting RDS information, your NAD C740 will automatically show the station initials when its Preset is used. Although the receiver automatically shows the frequency of any other AM or non-RDS Preset station, it also allows you to type in the station name to make it easier to identify which station is stored in the Memory Preset. To enter a name: Select the Preset you want to attach a name to. Then press Character (No. 18) and the first space in the Station Data area of the Display Panel will flash. Press either the Tune/Preset or (No. 19) button to scroll and select the first character (see Character list for reference). Pressing Memory (No. 15) will store the first character and move forward to the next space on the line. Use the Tune/Preset buttons again to select the next character in the name and press Memory to store it. Continue until the station name is complete (up to 8 characters). Press Character again to store the completed name. There are 54 characters available including a blank space.

TUNER AM, TUNER FM Pressing either the AM or FM button will select the tuner as the active input and revert to the last station tuned to on respectively the AM or FM band. MUTE Press the MUTE Button to temporarily switch off the sound to the speakers and headphones. Mute mode is indicated by AUDIO MUTE flashing in red in the display area. Press MUTE again to restore sound. Mute does not affect recordings made using the Tape outputs but will affect the signal going to the Pre-amp output (Pre Out). VOLUME or respectively increases or decreases the Volume setting. The motorised Volume Control on the front panel will indicate the level set. TUNER CONTROL PRESET or allow direct selection of the desired preset. Use of these buttons will automatically switch the tuner section to Preset mode. Refer also to chapter Front Panel Controls; section 13 Search/Preset for more information. Other than the commands relating to the NAD C740 receiver itself, there are other buttons which will operate most NAD CD players and Cassette decks equipped with NAD Link: CD PLAYER CONTROL (for use with NAD CD Player) engages Pause engages Stop engages Play or toggles between Play and Pause or engages Track skip; Press once to respectively go to the next track or to return to start of current or previous track. NEXT DISC Go to next disc (for NAD CD changers). CASSETTE DECK CONTROL (For use with single (DECK B) or double transport (A and B) NAD Cassette Decks) or engages Forward Play or Reverse Play. Record / Pause. Press to put cassette deck into recordpause. Press Play to start recording. Stops Play or Recording. engages Rewind. engages Fast Forward. NOTE: Direct sunlight or very bright ambient lighting may affect the operating range and angle for the remote control handset. NOTE: The infrared remote control command receiver, located on the far left of the display window, receives commands from the remote control. There must be a clear line-of-sight path from the remote control to this window; if that path is obstructed, the remote control may not work.

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NOTE: This function is only available for non-RDS stations. RDS stations will always display their transmitted name and this cannot be over-written using CHARACTER. NOTE: The 120V versions (North America) do not have RDS (Radio Data System) REMOTE CONTROL HANDSET The Remote Control handset handles all the key functions of the NAD C740 and has additional controls to remotely operate NAD Tuners, Cassette and CD machines. It will operate up to a distance of 16ft (5m). Alkaline batteries are recommended for maximum operating life. Two AAA (R 03) batteries should be fitted in the battery compartment at the rear of the Remote Control handset. When replacing batteries, check that they have been put in the right way round, as indicated on the base of the battery compartment. Please refer to previous sections of the manual for a full description of individual functions. NOTE: The remote control handset supplied with the C740 is of a universal NAD type, designed to operate several NAD models. The Video 2 and Video 3 input selector buttons on the remote control handset are inoperative in the case of the C740. The Speaker A and B buttons, the Bank button, and input selector buttons perform the same functions as the buttons labelled the same on the front panel. There are a few differences and extra functions with the remote control handset however:

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1998 NAD ELECTRONICS LTD LONDON ENGLAND All rights reserved. No part of this publication may be reproduced, stored or transmitted in any form without the written permission of NAD Electronics Limited
C740 Manual 06/98 Printed in Malaysia

C 720BEE Stereo Receiver

50W x 2 Continuous Power into 8 ohms 100W, 150W, 180W, IHF Dynamic power into 8, 4 and 2 ohms, respectively PowerDrive AM/FM Tuner with 30 station presets RDS data service for FM Multisource Zone 2 with independent line level output Speaker A and B switching Full System Remote control Headphones socket Relay Input Switching Toroidal Power transformer 7 Line inputs All discrete circuitry utilizing Class A gain modules Short signal path from input to output All sockets Gold plated Tone controls defeat switch Main-amp input & pre-amp output Subwoofer output Soft Clipping IR In & Out 12 volt trigger output
The Story Behind BEE Many of NADs most innovative circuit designs have come from the creative mind of Bjorn Erik Edvardsen, Director of Advanced Developments. Soft Clipping, Power Envelope, and PowerDrive are just a few examples of Eriks superb engineering skill. The BEE moniker for NADs latest receiver recognizes Eriks contribution to the marque, now in its 32nd year. Features: The C720BEE is fully remote controlled and comes supplied with the NAD SR5 system remote control. The remote control will also operate other NAD products such as CD players. We also include a small Zone 2 remote that allows input switching from a remote zone when used with an IR extender eye. A simple second zone can be congured by using the switchable Speakers B option. Flexibility is another NAD strong point. The C720BEE has 7 line inputs and the pre-amplier section can be separated from the power amplier for easy upgrades or adding ancillary equipment. Thus the C720BEE can be expanded to meet future system needs. For remote on/off switching of ancillary components in a system, such as power ampliers or active speakers, the C720BEE is equipped with a 12V-trigger system. When switching the amplier on, the 12V- trigger output is also activated, which when connected to a device with a 12Vtrigger input will switch on the remote device. Besides the 12V-trigger, the C720BEE also has an AC switched outlet (North American version only) so you can easily switch your entire system on or off with the remote control or from the front panel. It is fashionable to omit tone controls nowadays: however, provided that the tone controls are properly designed, they can be really useful tools in making improvements to the overall sound. The C720BEE tone controls only work at the frequency extremes leaving the critical mid-band essentially unaltered. The tone control circuits can be completely bypassed by using the tone defeat switch.
NAD has always had a formidable reputation when it comes to high performance receivers, by combining our most popular ampliers with a high performance AM/FM tuner to make receivers with a genetic advantage. The NAD 7020, and more recently the NAD C740 have received world-wide accolades for their outstanding musical performance and superb value. As an encore, NAD is proud to present an updated version called the C720BEE. This combines our award winning C320BEE amplier with an RDS AM/FM tuner, and includes a Multi-source Zone 2 facility that allows you to listen to your music independently in another room of your home by simply adding an amplier and another pair of speakers.
The C720BEE also incorporates NADs acclaimed switchable Soft Clipping circuit, which signicantly reduces the risk of damage to loudspeakers due to prolonged high power operation. Design: PowerDrive : NAD takes a stance to the overblown power ratings quoted by many competitors, which dont give a realistic indication of an ampliers true capabilities. NADs Full Disclosure Power ratings give the guaranteed minimum continuous power output under the worst case loading of 4 Ohms and 20Hz to 20kHz with both channels driven simultaneously, as well as the more meaningful in actual use dynamic power ratings. The C720BEE benets from NADs proprietary PowerDrive topology, this further renement of Power Envelope and ISC, is now well established and used throughout the NAD product range. PowerDrive endows the C720BEE with tremendous dynamic power and low impedance drive capability, seemingly contradictory traits to be found in a single amplier. This is accomplished by using a multistage power supply with a very sophisticated analog computer determining whether to switch in a high voltage or a high current rail depending on the specic operating condition. This optimization is fully automatic and utterly transparent in operation; the result is that the C720BEE sounds far larger and more powerful than its continuous power rating would suggest. PowerDrive is a practical approach to enable an amplier to easily deal with musical dynamics and difcult speaker loads. Most impressive are the C720BEEs dynamic capabilities; up to 220 Watts into 2 ohms and up to 50 amps peak current capability! Performance: The C720BEE features many circuit renements trickled down from NADs award winning ampliers including active current sources and common base current followers in the power amp section. This dramatically reduces dynamic intermodulation distortion between music signal components in different frequency ranges, and between the music signals and the power supply ripple and distortion components. In measurement terms, both static and dynamic IM distortion are reduced by between 10dB to 20dB. (to between -90dB and - 100dB.) In audible terms this improves denition, purity and resolution, hence imaging. Compared to its predecessor the C740, we have improved the accuracy of the tone controls, increasing their boost/cut range by 1.5dB and have specied a better quality volume control. While some of these are small improvements in and of themselves, there is an additive effect that results in a more rened and authoritative sound, building on the strengths of the already very good design of the C740 and making it the equal of the C320BEE. The sensible

Tone Control characteristics, sonically transparent relay input switching, and Pure Class A modular preamp stages and power amp driver stages, are directly carried over from the C320BEE. So are the patented power amp output stages, unique low resistance binding post design, copper bus bars for high-current paths, and low-noise discrete regulators.
Pre-Amp Section Line level inputs Input impedance (R+C) Input sensitivity, rated power Frequency response (-3dB - 70kHz)* Line level outputs Output impedance Record Out/Zone 2 Maximum output level Pre-Out Tone Controls Treble Base Remote Control Power Amp Section Continuous output power Rated distortion (THD 20Hz-20kHz) Clipping power IHF dynamic headroom at 8 IHF dynamic power at 8 IHF dynamic power at 4 IHF dynamic power at 2 Damping factor (ref. 8, 50Hz) Line level inputs Input impedance Input sensitivity (for rated power into 8) Frequency response; 20Hz-20kHz Signal/noise ratio; ref 1W (A-weighted) Signal/noise ratio; ref rated power Tuner Section Usable input sensitivity; FM mono 50dB Quieting sensitivity; FM stereo Harmonic distortion; FM mono Harmonic distortion; FM stereo Signal/noise; mono Signal/noise; stereo Channel separation at 1kHz Frequency response; 1.5dB Physical Specications Dimensions (W x H x D) Net Weight Shipping Weight 17 1/8 x 5 3/4 x 13 3/4 (435 x 147 x 350mm)
14.33 lbs (6.5kg) 16.98 lbs (7.7kg) 20k/ 470pF 630mV +/-0.3dB 96dB 117dB 50W 0.03% 65W 3.4dB 100W 145W 210W >110 22k / 100pF 330mV 0.3dB

220 Source Z + 200

Zone 2 out >11V >12V
5dB at 10kHz 5dB at 100Hz SR-5 / ZR-3 2nd Zone
16.1dBf 36.1dBf 0.25% 0.5% 60dB 55dB 40dB 30Hz - 15Hz
NAD Electronics International reserves the right to change specications or features without notice. NAD is a registered trademark of NAD Electronics International. All r permission of NAD Electronics International. 12/04 NAD Electronics International.

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