NAD T770 Stereo Receiver User Manual
Contents
1. 10000000 OUT N NO N VIDEO 1 ViDEO2 VIDEO 3 VIDEO 4 VIDEO AUDIO VCR TAPE i ES DI K OUT X AUDIO OUT VIDEO OUT LD GAMES STEREO AUDIO E DIGITAL AUDIO INPUT AC OUTLETS AC120V 60Hz TOTAL 120W 1A MAX schen UNSWITCHED NAD 1998 7770 VIDEO STEREO AUDIO DIGITAL AUDIO INPUT C1200 E OUTLETS L T20W MAX UNSWITCHED NAD 1998 7770 OUT REMOTE NAD IN HI FI SYSTEM AUX AMPLIFIER FIGURE A SUB ROOM SPEAKERS SUB ROOM SPEAKERS AUX JOR IN R NADLINK TO 52 MULTI SOURCE PRE OUT FRONT SPEAKERS A Am FRONT SPEAKERS R SPEAKERS MAIN ROOM NAD 1998 T770 MULTI SOURCE PREOUT T770 FIGURE B DIGITAL VIDEO DISC PLAYER OR TV VIDEO 3 1 1 H n DIGITAL COAXIAL OUT C ANALOG 1 DIGITAL AUDIO INPUT T770 AUDIO OUT DIGITAL OPTICAL OUT SURROUND acil MULTI oww WE E WOOFER wod CAUTION SPEAKER IMPEDANCE FRONT AORIOUB 40 MIN SPEAKER senso 22. SURROUND MI SPEAKER an GOR cn so SPEAKER MONITOR VIDEO 4 VIDEO 2 AC OUTLETS ACI20V Botte TOTAL 120W 1A SWITCHED UNSWITCHED NAD 1998 1770 ANALOG AUDIO OUT i VIDEO OUT DIGITAL AC 3 RF OUT VIDEO DISC PLAYER VIDEO 4 FIGURE 1 European and Australian models FIGURE 2 U S A And Canadian models GND ANTENNA X AN AM GND FM 750 m lt wh EAE SLEEP MUTE NEES VIDEO 5 VIDEO 4 VIDEO 3 VIDEO 2 VIDEO 1 OOOOO 0 00 MULTI 422 UNER SOURCE IMO AIA MS V LUME PRHSET W SURROUND UP LEFT RIGHT NIGHT lt QO CHANNEL s CT DISC Ad ie M 45 lt gt OO OO 13 14 T770 RC NAD 1998 FIGURE 5 T770 Surround Sound Receiver NOTES ON INSTALLATION Your NAD T770 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 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 T770 are colour coded for conv
3. NAD Surround Sound Receiver Surround Sound Receiver T 770 CHARACTER PRI BANK MEMORY DIGITAL AUDIO TONE SPEAKERS SELECTOR DEFEAT VIDEO 1 VIDEOZ VIDEO3 VIDEOS VIDEOS n R AUDIO Owner s Manual IMPORTANT SAFETY INSTRUCTIONS CAUTION ATTENTION SHOCK DO NOT OPEN 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 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 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 manufactur
4. EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS CONTAINED IN ARTICLE 810 RADIO AND TELEVISION EQUIPMENT POWER LINES SERVICE ENTRANCE CONDUCTORS STAND OFF INSULATORS b 5 lt gt ANTENNA SERVICE ENTRANCE GROUND CLAMPS LEAD IN WIRE EQUIPMENT N ANTENNA Sp Y DISCHARGE PA UNIT POWER SERVICE GROUNDING 3 ELECTRODE SYSTEM EN GROUND gt e g Interior metal water pipe BONDING JUMPER d WIRE Me ANAK GROUND TERMINALS CLAMPS OF PRODUCT OPTIONAL ANTENNA GROUND ING ELECTRODE DRIVEN 8 FEET 2 44M INTO THE EARTH IF REQUIRED BY LOCAL CODES SEE NEC SECTION 810 21 f NOTE TO CATV SYSTEM INSTALLER This reminder is provided to call the CATV system installer s 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 FOR U S A MODEL FCC INFORMATION FOR USER CAUTION Changes or modifications not expressly approved by the manufacturer for compliance could void the user s authority to operate NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a r
5. ELECTRIC SHOCK MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERT Ifan 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 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 tuner preamplifier 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 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 lead in 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
6. designed specifically to drive a sub woofer system Dolby Digital uses a dedicated Low Frequency Effects LFE channel If a subwoofer has been selected the LFE channel will be fed to the subwoofer output SPEAKER DISTANCE For the best surround sound performance it is important that sound of all speakers reach the listener s ears at the same time Because the Surround speakers are usually closer to the listener than the Front speakers there is a tendency for the ear to localise sounds to the rear because the ear takes most notice of the sounds that arrive at the head first Similarly the Center speaker is often closer to the listener than the Left and Right speakers To resolve this problem the T770 s circuitry includes a system that will delay the signal for the speaker closest to the listener This ensures sound coming from all speakers always arrives at the listener s ears at the correct time To set Speaker Distance From the listening position measure the exact distance to each speaker Call up the Main menu of the On Screen Display Fig 6 Select the Speaker A Menu Fig 12 Choose the Speaker Distance submenu Fig 14 Select Front and enter the distance in either feet or metres Depending on the version of your T770 you can change the distance in feet or metres with 1 foot or 0 3 metre increments from 1 0 3m to 30 foot 9 0 m Select Centre if installed and again enter distance The Center spe
7. not available on their own outputs e g When Video 2 is selected the video signal will be available on the Monitor and Video 1 outputs but not on the Video 2 outputs VOLUME AND TONE FUNCTIONS 7 TONE DEFEAT The Tone Defeat switch by passes the tone control section of the T770 If the Tone Controls No 8 are not normally used and left in the 12 o clock 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 11 12 8 BASS amp TREBLE CONTROLS The T770 is fitted with BASS and TREBLE tone controls to adjust the overall tonality of your system The 12 o clock 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 These controls affect the Left Right Front and Center speakers The Tone controls do not affect recordings made using the Tape or Video line outputs but will affect the signal going to the Pre amp outputs Audio Pre Out 9 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 using the Master Volume A or W button No 8 in remote control drawing T
8. operated in Dolby Digital Dolby Pro Logic EARS surround sound mode or with the EXT 5 1 CH input selected Connect the CENTER speaker in the same way as described in the section Connect the speakers above section 18 20 SURROUND SPEAKERS This connects the Surround loudspeakers that are used when the T770 is operated in Dolby Digital Dolby Pro Logic and EARS Surround sound modes or with the EXT 5 1 CH input selected Connect the SURROUND speakers in the same way as described with SPEAKERS A amp B above section 18 21 COOLING FAN The cooling fan allows T770 to deliver high amounts of power without the unit becoming too hot The fan will only operate in Surround Sound mode operation during loud passages coming from the surround channels With No Surround mode selected stereo the fan is inoperative NOTE Ensure that the air outlets of the fan aren t blocked in any way 22 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 receiver s remote control To function with such other units connect the T770 s 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 fr
9. the input to which the Digital Audio Input is assigned the display indicates which Digital Audio Input is assigned to the selected input Press the Digital Audio Selector until the Digital Audio extinguishes in the display The Digital Audio input has now been de selected from the chosen input When no digital source is available not connected or source is switched off the associated Digital Audio input number will blink Once a digital signal is available and the input has locked on to the digital signal it will remain lit 19 SURROUND MODE With the Surround Mode lt q and buttons the available surround sound modes can be selected The selected Surround mode is permanently indicated in the display area and is also shown for 3 seconds in the large alphanumeric section of the display The Surround Mode buttons scroll through the available surround sound modes Surround Mode Off Dolby Pro Logic 9 EARS amp Surround mode Off etc With Dolby Digital surround sources Dolby Pro Logic and EARS are not available Surround Mode Off 4 Dolby Digital If Dolby Pro Logic or EARS is selected the T770 will automatically switch to Dolby Digital Dolby Digital has six independent channels available in total Left Center Right Surround left Surround Right and an Effects Channel Subwoofer Dolby Digital is only available as a Surround Mode if the source is Dolby Digital and a Digital Audio input is used The Dolby Digita
10. to connect the CD player s left and right Audio Outputs to this input 5 TAPE 1 Connections for analogue recording and playback to an audio tape recorder of any type such as a cassette reel reel DAT MD or DCC Using twin RCA to RCA leads connect to the left and right Audio Output of the tape machine to the TAPE 1 IN connectors for playback Connect the left and right Audio Input of the tape machine to the TAPE 1 OUT connectors for recording 6 TAPE 2 Connections for analogue recording and playback to a second 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 connectors for playback Connect the left and right Audio Input of the tape machine to the TAPE 2 OUT connectors for recording 7 VIDEO 1 amp VIDEO 2 AUDIO Connections for the audio recording and playback to a VCR or other video recorder Using twin RCA to RCA leads connect to the left and right Audio Out of the VCR to the VIDEO 1 or VIDEO 2 IN connectors for playback Connect the left and right Audio In of the VCR to the VIDEO 1 or VIDEO 2 OUT connectors for recording These audio inputs and outputs are used in conjunction with the composite line video refer to No 9 below or S VIDEO refer to No 12 below inputs and outputs 8 VIDEO 3 amp VIDEO 4 AUDIO Inputs for the audio playback from a VCR or other video device such as a stereo TV s
11. ways in which the OSD can appear and function From the Main menu select and enter the Screen Setup menu see Fig 7 Select Superimpose ON so that the OSD is superimposed over the video signal received from the T770 input selector By selecting OFF the OSD will always be displayed with a solid blue background Select Temporary Display ON if you wish to see the OSD confirming each time an operation is performed for 5 seconds such as volume change different input selected etc By selecting OFF the OSD will only be shown when calling up the Main menu SCREEN SETUP 2 Superimpose Temporary Display Fig 7 The other Menus available are SPEAKER A SETUP With the Speaker A Setup mode Fig 12 you can select INPUT SELECTOR FIG 8 submenus to set all parameters for a surround sound system When calling the INPUT SELECTOR up for the first time both SPEAKER A SETUP xx Picture and Audio will be highlighted By usingthe or cursor button you can scroll through and choose one of 5 Selection the inputs It is also possible to select the video input signal e SUE independent from the audio input signal Test Tone XXINPUT SELECTOR xx Picture VIDEO 3 Audio TUNER Tape 2 Monitor OFF Preset Station ation Sur Mode DOLBY Speaker Selection Fig 13 Speaker Distance Fig 14 Level PRO LOGIC Calibration Fig 15 xx SPEAKER SELECTION Xxx F
12. which speakers system has been selected NOTE Always turn the volume down when engaging or disengaging either Speaker A or Speaker B 4 HEADPHONE SOCKET A 1 4 stereo jack socket is supplied for headphone listening The socket has its own amplifier which will drive conventional headphones of any impedance The volume and tone controls are operative for headphone listening Use a suitable adapter to connect headphones with other types of connectors such as 3 5mm stereo personal stereo jack plugs Inserting a headphone will automatically disengage the subwoofer output and turn off all speakers connected The sound from the AC 3 RF input is not passed on to the headphones socket Also connect the analogue output from the AC 3 RF source connected to Digital Audio Input 3 to be able to listen to Video 4 via headphones The sound from the EXT 5 1 CH input is not available on the headphones socket NOTE Listening at high levels can damage your hearing 5 VIDEO 5 INPUT For easy and temporary connection you can connect a camcorder playback only or video game console If the game console or camcorder is mono connect the audio lead to the R Right audio socket If your camcorder is equipped with S Video so called Hi 8 and S VHS models cameras you can use the S Video input Refer also to chapter Rear Panel connections section 12 for additional information The Video 5 input works in the same was as Video 3 and Video 4 re
13. OPQRSTU VWXYZ amp 10123456789 _ NOTE INDICATES A SPACE NOTE This function is only available for non RDS stations RDS stations will always display their transmitted name and this cannot be over written NOTE The 120V versions North America do not have RDS Radio Data System REMOTE CONTROL Apart from all the key functions the T770 s Remote Control handset also gives access to functions not available on the front panel It also has additional controls to remotely operate NAD 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 The EXT 5 1 Video 1 to 5 Tape 1 2 Aux and CD Input selector Speakers and Bank buttons perform the same function as those on the front panel of the T770 There are a few differences and extra functions with the remote control handset however numbers refer to Fig 5 1 STAND BY Press this green 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 2 SLEEP Press SLEEP to make the T770 automatically switch o
14. aker must be within 2 metres in distance compared to the Left and Right speakers Select if installed and enter distance again The surround speakers should not be further away from the front channel speakers LEVEL CALIBRATION The output levels of each of the speakers connected to the T770 need to be adjusted so that there is an even balance of sound from all the speakers in the system If for instance the relative volume level to the Left and Right speakers the center is set too low most of dialogue may be difficult to follow If on the hand it is set too loud the overall balance will sound unnatural To facilitate the Level calibration procedure the T770 is equipped with a Test signal generator to help asses the loudness levels of each speaker Before starting the Level Calibration procedure make sure the master volume is turned down to a normal listening level Call up the Main menu of the On Screen Display Fig 6 Select the Speaker A Menu Fig 12 From the listening position choose the Level Calibration submenu Fig 15 The T770 s built in test signal generate will start the noise signal that scrolls to each of the speaker channels Left gt Center gt Right amp Right Surround Left Surround Subwoofer Left gt etc Select the channel for which you wish to adjust and set the level so that it matches the other speakers For best results it is best to start with the Left channel Se
15. atellite or cable TV receiver or a Laser Disc Using twin RCA to RCA leads connect to the left and right Audio Out of the VCR TV LD satellite receiver to these inputs These audio inputs are used in conjunction with the composite line video refer to No 10 below or S VIDEO refer to No 12 below inputs 9 VIDEO 1 amp VIDEO 2 VIDEO Connection for the Composite video signal input for VIDEO 1 or VIDEO 2 Using a RCA to RCA lead connect the Video Out of the VCR to VIDEO 1 or VIDEO 2 IN for playback Connect VIDEO 1 or VIDEO 2 OUT to the Video In of the VCR to copy video signals from VIDEO 1 to VIDEO 5 10 VIDEO 3 amp VIDEO 4 VIDEO Connection for the Composite video signal input for VIDEO 3 or VIDO 4 Using an RCA to RCA lead connect the Video Out of the VCR TV Laser Disc or satellite cable unit VIDEO 3 amp VIDEO 4 can be used for video playback only Use VIDEO 1 or VIDEO 2 if you want to connect a VCR for recording and playback through the T770 11 MONITOR OUT Composite video output for connecting a TV or Video Monitor to view video sources connected to VIDEO 1 to VIDEO 5 Using a Video RCA to RCA lead connect the Video Line In on the TV or monitor to the MONITOR OUT 12 S VIDEO VIDEO 1 VIDEO 2 VIDEO 3 VIDEO 4 MONITOR OUT The S Video standard allows for higher quality video signal transfer when compared to the Video Composite standard If your video components have an S Video connector us
16. available from the Tape 1 Tape 2 Video 1 and Video 2 outputs when the EXT 5 1 CH input has been selected 18 DIGITAL AUDIO SELECTOR With the Digital Audio selector button you can assign which one of the Input Selectors will be linked to either the Digital Audio 1 Digital Audio 2 or Digital Audio 3 inputs When a Digital Audio input is linked to one of the Input selectors whenever a digital source is sensed at the Digital Audio input the Digital Audio input will be used instead of the corresponding analogue audio input To assign a Digital Audio input to a specific Input Selector button Press the desired input button except AM FM Tape 2 Monitor and EXT 5 1 CH Press the Digital Audio Selector button The DIGITAL AUDIO box will light up in the display with the first available digital input Press the Digital Audio Selector button again to until the desired digital input lights up either 1 2 or 3 Digital Input 1 is the optical input Digital Audio input 2 and Digital Audio input 3 are the coaxial inputs The next time this input is selected the chosen Digital Audio input will automatically be selected as well NOTES It is not possible to select a digital input if Digital Audio input 1 Digital Audio input 2 and Digital Audio input 3 have already been assigned You must first de select the desired Digital Audio input from the Input Selector button it has been assigned to TO DE SELECT A DIGITAL AUDIO INPUT Select
17. ay Record Pause Press to put cassette deck into record pause Press Play to start recording Stops Play or Recording 44 engages Rewind gt gt engages Fast Forward NOTES Direct sunlight or very bright ambient lighting may affect the operating range and angle for the remote control handset 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 SETTING UP THE SURROUND SYSTEM To obtain the best results in any of the Surround Modes it is important that the T770 is carefully set up Performing the complete setup is done using the On Screen Display menus It is therefore recommended you connect your television or monitor is connected to the T770 monitor output Refer to the chapter On Screen Display OSD on how to access the Main Menu of the On Screen Display choose sub menus and change settings The setup procedure is broken down in three sections 1 Speaker Selection 2 Speaker Distance 3 Level Calibration SPEAKER SELECTION First you need to indicate which speakers are connected to your T770 These can include a Center two Surround speakers and a subwoofer apart from the Left and Right speakers Call up the Main menu of the On Screen Display Fig 6 Select the Speaker A Menu Fi
18. d vice versa Press this button again to switch the 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 2 just over the green POWER button on the front panel No 1 In Stand by mode the T770 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 Press this button to switch the unit on To switch the unit off press this button again 2 STANDBY 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 3 SPEAKERS A B Pressing the Speakers A button will disengage the main loudspeaker system the Front A Center and Surround speakers Press the button again to switch the speakers back on Pressing the Speakers B button will disengage the secondary speaker system the Front B speakers When Speakers B is selected any surround mode will be switched off automatically Surround off stereo will be selected Speakers A and Speakers B can not be used simultaneously When selecting Speakers B Speakers A will be disengaged and vice versa The display panel indicates
19. display area Press the lt q 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 Tune mode Press or lt q for more than 1 2 second to 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 Search button again for 1 2 second to start searching again NOTE Automatic tuning is only available on FM By briefly tapping the lt q you engage manual tuning respectively up or down the frequency band for precise tuning to a specific frequency With each successive tap of the keys the tuner will take 0 05 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 T770 This tuning mode can also be useful when trying to receive a radio station which is too weak for the auto search mode When tuned accurately to a station gt TUNED lt q will light up in the display With stations carrying RDS information the station s RDS name is displayed Program Service PS normally the station s calling letters BBC R3 for instance Refer to the separate chapter Storing recalling and naming Presets for more i
20. e dedicated S Video leads to connect them to the T770 in the same way as described with the Video composite equivalents No 9 10 and 11 above Soon Im n A video signal fed to an S Video input socket will be available on both the S Video and Video composite output of Monitor Out However a signal fed into one of the Composite Video inputs will only be available on the Video composite outputs of Video 1 Video 2 and Monitor Out VIDEO SIGNAL FLOW 7770 S VIDEO S VIDEO gt gt INPUT MONITOR PRIORITY OUTPUT VIDEO gt gt VIDEO An S Video signal is not available as a composite Video signal on either the Video 1 and Video 2 outputs If both the S video and Video composite signals are connected to either VIDEO 1 VIDEO 2 VIDEO 3 VIDEO 4 or VIDEO 5 the Video composite signal will be available on both the VIDEO 1 and VIDEO 2 outputs A video signal connected to VIDEO 1 or VIDEO 2 will not be available on its own video output 13 5 1 CHANNEL INPUTS Inputs for the multi channel audio signals from an external decoder such as a DTS decoder or DVD player with integrated decoder Use two twin RCA to RCA lead to connect the decoder s front left and right Audio Outputs to the Front left and right inputs and the decoder s Surround left and right outputs to the Surround left and right inputs Use a third twin RCA to RCA lead to connect the dec
21. e three modes a In the default mode the station s RDS name is displayed Program Service PS normally the station s 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 presenter s or program s 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 When tuned to a non RDS station The PS RT 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 11 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 Search No 15 and MEMORY No 14 Buttons Refer to the separate chapter Storing recalling and naming Presets for more information 12 BANK Pressing Bank switches between the T770 s four Preset Memory Banks A B C or D Each of these banks can hold up to 10 Preset stations Th
22. ed Select a Surround Mode Mono sound source Test system with Stereo or Dolby Surround material Speakers not properly connected Check speakers and connections Surround volume level too low Increase surround volume level NO SOUND ON CENTER CHANNEL n Setup NONE for center speaker Select appropriate Center mode large selected or small By Pass mode selected Select Surround Mode Speaker not connected properly Check Speaker and connection Center volume level set too low ncrease center volume level NO SOUND IN SURROUND OFF WITH e Analogue connections from source not Connect analogue connections from DIGITAL INPUT connected to T770 digital source as well NOT POSSBILE TO SELECT DOLBY DIGITAL e Source not connected using digital Connect digital output of source to T770 in outputs Digital input has not been assigned to Assign the digital input used to selected selected input input WEAK BASS DIFFUSE STEREO IMAGE Speakers wired out of phase Check connections to all speakers in the system REMOTE CONTROL HANDSET NOT Batteries flat or incorrectly inserted Check or replace batteries WORKING IR transmitter or receiver windows Remove obstruction obstructed IR receiver in direct sun or very bright Place unit away from direct sun reduce ambient light amount of ambient light NO SOUND WITH TUNER Antenna leads incorrectly connected Check antenna connections to receiv
23. een the Left and Right channel can be changed Fig 16 The small two vertical bars indicate the relative loudness of the left channel to the right and vice versa With the II directly below the Fig 10 symbol balance is set exactly in the middle With Dolby Digital selected you can also select Late Night on or off and LFE Level Atten at OdB or 10dB Fig 11 XXSURROUND SETUP xx Sur Mode DOLBY DIGITAL Late Night OFF SPEAKER B SETUP xx Balance Control LFE Level Atten 104 Fig 16 NOTE The OSD will switch itself off if no option selected or Fig 11 setting changed for more than five minutes Refer also to chapter Setting up the Surround Sound System 15 16 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 15 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 non RDS station is found then just the frequency will be shown To store that station as a Preset press Memory No 14 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 four Banks of Presets A B C or D you want to store the station into Press either the Tune Search or lt button to select which Preset number
24. enience Red and white are Right and Left audio respectively orange for digital input black for RF modulated digital signal yellow for Video Composite and NAD Link Use high quality leads and sockets for optimum performance and reliability Audio RCA leads will function correctly for video signals although it is recommended to use dedicated video leads where possible For the digital inputs use dedicated leads for digital signal transfer Ensure that leads and connectors are not damaged in any way and all connectors 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 T770 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 user serviceable 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 REAR PANEL CONNECTIONS 1 AM ANTENNA An AM loop antenna is supplied with the T770 and is required for AM reception Open the clip terminal lever and insert the wire from the antenna Closing the lever will lock the wire in place Fig 3 Test various positions for the antenna but always ensure the lo
25. er Station not selected or weak signal with Re tune or switch off FM Mute FM Mute on NOISE HISS ON AM AND FM e Weak signal e Check station tuning Adjust or replace antenna DISTORTION ON FM e Multi path signals or interference from Check station tuning Adjust or replace another station antenna WHISTLES OR BUZZES ON FM amp AM Interference from other electrical Check station tuning Switch off or sources computers games consoles move the source of the electrical noise WHISTLES OR BUZZES ON AM Interference from fluorescent lighting e Check station tuning Adjust or replace or electrical motors AM antenna NO RDS NAME PS Station signal too weak Check station tuning Adjust or replace antenna Station not transmitting RDS data No remedy 20 WWW NAD CO UK 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 T770 Manual GB I P S 07 98 Printed in Malaysia SN29342662
26. er s 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 Read and follow all the safety and operating instructions before connecting or using this unit Retain this notice and the owner s 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 uni
27. ese 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 Bank D for news 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 function 13 PRESET The Preset button toggles between the Preset and Tune mode When Preset mode is selected PRESET lights up in the display area Up to 40 Presets either AM or FM can be stored in four Preset Banks which can contain up to 10 Preset stations each The Preset and bank numbers are shown in the Display Panel Refer also to section 15 and to the separate chapter Storing recalling and naming Presets for more information 14 MEMORY The Memory button is used to store stations into the four Preset Memory Banks Used in conjunction with the Tune Search No 15 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 15 TUNE SEARCH 4 AND The function of these buttons depends on the tuning mode selected with the Preset button No 13 The Preset button toggles between the two operation modes Preset mode indicated in the
28. esidential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmfiul interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help REAR PANEL CONNECTIONS 1112 13 14 20 SOFT ON CLIPPING SUB WOOFER FRONT AOR OU B 40 MIN SPEAKER MONITOR 9900 cO0O00000 VIDEO 2 VIDEO 3 VIDEO 4 IN IN CAUTION SPEAKER IMPEDANCE CENTER 49 MIN SPEAKER SURROUND 6 MIN SPEAKER FRONT SPEAKERS n R FRONT PANEL CONTROLS 15 16 17 18 19 20 7 21 22 23 AC OUTLETS ACI20V 60Hz TOTAL 120W MAX ma SWITCHED UNSWITCHED 24 Su
29. f the digital inputs is not passed on to the Multi Source Video 1 Video 2 Tape 1 and Tape 2 outputs If available also connect the analogue outputs of the digital sources as well to the matching analogue inputs of Digital input 1 2 and 3 FRONT PANEL CONTROLS POWER SPEAKERS AND HEADPHONE FUNCTIONS 1 POWER Press the POWER button to switch the receiver to its Stand by mode The Stand by indicator No 2 over the power button will light up On the front panel press any of the input selector buttons No 6 to switch to receiver on From the remote control press the green Stand by button No 1 on remote control drawing 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 T770 receiver uses a memory back up system to store surround sound trim settings and Preset station information for the tuner section This information is retained for several weeks even the unit is switched off completely or unplugged Manufactured under license from Dolby Laboratories Dolby Pro Logic and the double D symbol are trademarks of Dolby Laboratories Confidential Unpublished Works 1992 1997 Dolby Laboratories Inc All rights reserved REMOTE CONTROL STAND BY button green No 1 on remote control drawing Press this button to switch the unit from operating to the Stand by mode an
30. fer to chapter Rear Panel connections section 10 for additional information 6 INPUT AND MONITOR SELECTORS These buttons select the active input to the T770 and the signal sent to the loudspeakers Tape 1 amp 2 Video 1 amp 2 and TV monitor outputs The name of the Input and Surround Mode will be shown in the Display Panel VIDEO 1 amp VIDEO 2 Selects the VCR connected to VIDEO 1 or VIDEO 2 as the active input VIDEO 1 or VIDEO 2 is shown in the Display Panel when selected VIDEO 3 amp VIDEO 4 Selects the signal from stereo TV Satellite Cable receiver or Laser Disc connected to VIDEO 3 or VIDEO 4 as the active input VIDEO 3 or VIDEO 4 is shown in the Display Panel when selected VIDEO 5 Selects the camcorder or video game console connected to the Video 5 front panel inputs as the active input VIDEO 5 is shown in the Display Panel when selected VIDEO 5 Selects the camcorder or video game console connected to the Video 5 front panel inputs as the active input VIDEO 5 is shown in the Display Panel when selected TAPE 1 Selects Tape 1 as the active input 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 whe
31. ff after a preset number of minutes Pressing the SLEEP button once will set the sleep time to 90 minutes after which the T770 will automatically switch off into Standby mode Sleep mode is shown on the Display Panel To adjust the Sleep Delay press the SLEEP button each consecutive press will reduce the sleep time in 10 minute increments as shown in the Display Panel To cancel the Sleep mode continue pressing the SLEEP button until the source name appears in the Display Panel Pressing the POWER or STANBY button will also cancel the Sleep mode 3 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 Audio Pre outs 4 TUNER Whereas the T770 s front panel has separate buttons for AM and FM the remote control has a single Tuner button The tuner section can be activated by pressing Tuner The tuner button will select the tuner as the active input and revert to the last station tuned to on either the AM or FM band 5 SOURCE MULTI SOURCE To select a source for Multi Source press Multi Source button The MULTI SOURCE indicator in the display will flash While the MULTI SOURCE indicator is still flashing 8 second default time select the desired source by pressing one of the input select
32. g 12 Choose the Speaker Selection submenu Fig 13 Choose Center and select one of the three modes available appropriate to the T770 s setup Small Large None The Small mode is used when the center speaker is smaller than the front left and right speakers This mode produces a true center image with the very low frequencies below 70 Hz filtered out The Large mode is used when the center speaker is similar in size and power handling as the front left and right speakers This mode produces a true center image with a full frequency range and no low frequency filtering The None mode is used when there is no center speaker installed The T770 places the center information equally on the left and right front speakers so producing a Phantom central sound image Using a separate center channel speaker will allow the dialogue to cut through even the biggest sound effects and musical scores Having the sound spread across three front speakers also stabilises the stereo image making the usable listening area much bigger For best results you should consider using a center speaker Ideally it should be the same type as the left and right speakers although there are now many new speakers such as the NAD 808CC which are specifically designed as center channel add ons for existing stereo systems Choose Sur and select YES if you do have surround connected NO if you don t have surround speakers connected In
33. he Volume control does not affect recordings made using the Tape 1 Tape 2 Video 1 and Video 2 outputs but will affect the signal going to the Pre amp output Audio Pre Out On the remote control handset press the Mute Button No 3 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 1 Tape 2 Video 1 and Video 2 outputs but will affect the signal going to the Pre amp output Audio Pre Out NOTES The Volume control does not affect the volume of the Multi Source output Use the Multi Source Level buttons on the remote control No 6 in remote control drawing to adjust the Multi Source volume Depending on the calibration of the Surround Setup it may occur that the volume control can not be adjusted to its maximum position Even if it is turned to the maximum position it will return to its highest possible setting TUNER 10 DISPLAY OR PS RT DEPENDING ON VERSION The Display button 120V versions North America only 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 With stations carrying RDS information the PS RT button 230V versions only scrolls between three different display modes each successive push of the button engages the next one of th
34. ig 8 Senter LARGE With both Picture and Audio highlighted select first the iL desired video signal LS SW RS Press the cursor W button once so that only Audio is highlighted You can now select the input for sound only e g even if you have selected the picture of Video 4 you can still choose to hear the sound from the Video 2 input e Within this menu you can also select to switch Tape 2 Monitor Fig 13 on or off scroll through the available Digital Audio inputs SPEAKER DISTANCE xxx change the surround Mode Ifthe selected audio input is the tuner another submenu layer 3 Front 3 6m LC R is available which will allow Bank and Preset selection Fig 9 e ud apad siais LS RS PRESET STATION xxx Preset Bank A No 5 1 91 30MHz 6 97 30MHz 2 89 10MHz 7 106 20MHz 3 91 30MHz 8 105 80MHz 4 93 20MHz 9 102 20MHz Fig 14 E434 90MHz 10 100 90MHz xxx LEVEL CALIBRATION xxx rest Tore Left m m m Exit Fig 9 Center SURROUND SETUP FIG 10 amp 11 Right 18 SW RS In the Surround Setup menu the desired Surround Mode can be ange z selected With a Dolby Digital source you can choose between Dolby Digital Surround mode or Surround mode off Fig 10 SURROUND SETUP Fig 15 ge Refer also to chapter Setting up the Surround Sound System SPEAKER B SETUP In the Speaker B Setup menu the balance betw
35. ion Select the Preset to be emptied Press the Memory button No 14 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 T770 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 name to Then press Character No 11 and the first space in the Station Data area of the Display Panel will flash e Press either the Tune Search gt lt q No 15 button to scroll and select the first character Pressing Memory No 14 will store the first character and move forward to the next space on the line Use the Tune Search 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 in total CHARACTERS WHICH CAN BE ENTERED ABCDEFGHIJKLMN
36. l signal conforms to Dolby s AC 3 standard which allows for several channel configurations The channel configuration is shown the display together with the input selected For example with regular Dolby Digital sources the display will show ch3 2 indicating that there are 3 front channels and 2 surround channels available EXAMPLE 1 MONAURAL SURROUND NO SIGNAL CHANNELS san FRONT CHANNELS EXAMPLE 2 DUAL MONAURAL FRONT CHANNELS AND NO SURROUND CHANNELS Dolby Pro Logic decodes the center and surround sound signals embedded in stereo movie sound tracks from e g video Laser Disc or TV To decode correctly the source must be a Dolby Surround or Dolby Stereo soundtrack 13 14 In the EARS Enhanced Ambience Retrieval System Surround Mode a realistic level of ambience of surround sound is added to normal stereo source such as a CD or FM radio Surround Mode Off switches to normal Stereo operation NOTE When using Digital Audio Input 3 the Surround Mode Off is selected the analogue inputs will be selected Therefore ensure that the analogue outputs of the digital sources are connected as well to the same input the Digital Audio input has been assigned to As an additional convenience feature your T770 memorises which surround mode you have used with the given input selection When you next select that input your T770 will automatically choose the same Sur
37. n TAPE 2 is selected then the CD signal will continue to be selected and sent to the TAPE 1 TAPE 2 Video 1 and Video 2 OUT 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 2 MONITOR will remain lit until Tape 2 is disengaged again FM Selects FM radio FM is also automatically selected when an FM Preset is selected AM Selects AM radio AM is also automatically selected when an AM Preset is selected AUX Selects the auxiliary audio component as the active input CD Selects the CD as the active input VIDEO OUTPUT The video signal available on the S Video and Video Composite Monitor Video 1 and Video 2 outputs is dependent on the selected video input VIDEO 1 VIDEO 2 VIDEO 3 VIDEO 4 VIDEO 5 However when one of the audio only sources is selected TAPE 1 TAPE 2 FM AM AUX CD the last selected video signal from one of the video inputs will be present on these outputs This way you can watch a Laser Disc or video whilst listening to the CD player The display indicates which video signal is routed to the MONITOR Video 1 and Video 2 outputs in the far left of the display area NOTE avoid feedback the video input signal from Video 1 or Video 2 is
38. n advances the sound of the Test generator to the next speaker From Left gt Center amp Right amp Right Surround Left Surround gt Subwoofer etc It is indicated in the display area which speaker has been selected e PresstheLevel A W button No 14 to adjust the level for the selected channel Once adjustments have been made press Test again the test generator will switch off and normal operation will resume NOTE The Test generator will switch itself off if no level adjustments were made for more than two minutes LFE Low Frequency Effects with a Dolby Digital source the subwoofer channel can be set from the normal mode OdB to a lower level 10dB If the bass from the subwoofer is too loud set the LFE option to 10dB The Delay time for the Surround speakers also needs to be correctly set for your normal listening position Refer to the section Setting the Surround Delay in this chapter for more information 19 TROUBLESHOOTING NO SOUND Power AC lead unplugged or power not Check if AC lead is plugged in and switched on power switched on Tape 2 Monitor selected De select Tape 2 Monitor mode Mute on Switch off Mute e Speakers not switched on Switch Speakers on NO SOUND ONE CHANNEL Speaker not properly connected or Check connections and speakers damaged e Input lead disconnected or damaged Check leads and connections NO SOUND ON SURROUND CHANNELS No surround mode select
39. ndicator in the display will flash While the MULTI SOURCE indicator is still flashing 8 second default time select the desired source on the remote control The selected source will be indicated in the display by a box around it If you want sound in just the second room and not in the main room disengage either Speakers A or Speakers B on the front panel No 3 or the remote control Adjust the volume for the second room setting by pressing either the MS VOLUME button No 6 on the remote control Upon adjusting the Multi Source level the display will indicate MULIT and the corresponding level setting ranging from 78 to 0 dB NOTES As it is possible to use the Multi Source facility independent from the main listening room an extra remote control handset can be useful Your NAD dealer can advise you regarding the availability With the Multi Source facility in use the source indicated in the main display for the main listening room can be recorded from ON SCREEN DISPLAY OSD The NAD T770 is equipped with an elaborate On Screen Display facility OSD As the OSD is an essential tool to set up the various parameters for Surround sound correctly it is recommended that you connect your monitor or television to the T770 For 230V versions only not on 120V North American versions Depending on your source and or the television system used you must first select the correct video system If the OSD rolls ove
40. nformation 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 Press the FM Mute Mode button to disengage the muting circuit and switch from stereo to mono reception MUTE will extinguish in the display Also STEREO will extinguish if a stereo broadcast was received Press the FM Mute Mode switch again to return to Auto Stereo FM operation SURROUND FUNCTIONS 17 EXT 5 1CH Selects the multi channel output signal from the DVD player or external decoder source such as DTS MPEG etc connected to the EXT 5 1 CH input as the active input NOTES The Speakers B No 3 Digital Audio Selector No 18 and Surround mode No 19 buttons do not have any effect in this mode No audio signal is
41. not be engaged if the EXT 5 1CH input has been selected Speakers A and Speakers B can not be used simultaneously When selecting Speakers B Speakers A will be disengaged and vice versa 10 CONNECT THE SPEAKERS Connect the right speaker to the terminals market and R ensuring that the R is connected to the terminal on your loudspeaker and the is connected to the loudspeaker s 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 T770 Unscrew the speaker terminal s plastic bushing Insert the pin or bare cable end into the hole of the terminal and then secure the cable by tightening down the terminal s bushing Fig 4 To avoid any danger of bare metal from the speaker cables touching the back panel or another connector ensure that there is only 1 2 1 27cm of bare cable or pin and no loose strands of speaker wire NOTE This unit is designed to produce optimum sound quality when speakers with impedances within the set s ranges are connected Please check the following information and choose speakers with the correct impedances for the connections FRONT SPEAKERS A or B 4 ohms min per speaker CENTER SPEAKER 4 ohms min SURROUND SPEAKERS 6 ohms min per speaker 19 CENTER SPEAKER This connects the center loudspeaker that is used when the T770 is
42. nputs It makes sense therefore to also connect the analogue outputs of your CD DVD and Laser Disc player if these are already connected to any of the digital inputs 15 AUDIO PRE OUTS The NAD T770 receiver has five power amplifiers built in to power all the speakers connected to it Left Right Center Left Surround Right Surround It is also possible to use the T770 as a pre amplifier to drive external power amplifiers This way you use all the control functions the T770 provides such as input select surround mode volume tone controls etc but the external power amplifier actually powers the speaker connected it instead of the T770 s integrated power amplifier for that channel Connect the RCA to RCA leads from the Front left and Right Center and or Surround Left and Right Audio pre out connectors to the external amplifiers Connect speakers to the external amplifiers When using external power amplifiers connected to the Audio Pre Outs make sure Speakers A No 4 on front panel drawing are engaged NOTES Never connect the T770 s speaker outputs and the speaker outputs of an external amplifier to the same speakers Before making any connections check that the T770 and the power amplifiers it will be connected to are switched off With volume turned down to a low level switch power on only after all connections have been made 16 SUB WOOFER OUT Unlike for the full range five channels as described above there is no p
43. oder s subwoofer output to the Subwoofer input and the decoder s Center channel output to the Center channel input Make sure you to follow colour coding of the plugs to ensure that both Center and Subwoofer are connected correctly for instance use the red plugs at either end to connect the center channel and the white plugs for the subwoofer channel 14 MULTI SOURCE PRE OUT The MULTI SOURCE PRE OUT sockets will allow you to channel the signal from any of the T770 s input sources to an external power amplifier or sound system independent from the source chosen to listen to on the T770 itself By using a so called remote control repeater system you can use the T770 remote control in the other room and adjust volume and source independently from volume set and source chosen in the main room Remote Control repeater systems are available from brands such as e g Xantech and QED Consult your dealer on the availability and use of such systems If the system in the second room is equipped with NAD link such as the NAD C320 or C340 amplifier the T770 can be connected through NAD link This enables it to receive remote control commands from the second room without the need for a Remote Control Repeater system Fig A illustrates how the connections are made to use the MULTI SOURCE PRE OUT sockets DIS is a trademark of Digital Theater Systems NOTE The MULTI SOURCE PRE OUT will only pass on input signals connected to the analogue i
44. om the remote control facilities of one unit 23 AC POWER CORD After you have completed all connections to the amplifier plug the AC line cord into a live wall socket 24 AC OUTLETS 120V Nortb American versions only The AC power cords of other units in the audio system can be connected directly to the T770 s AC outlets If another stereo component is plugged into the SWITCHED AC outlet power will be supplied to that component only when your T770 is turned on If another stereo component is plugged into the UNSWITCHED AC outlet power will be supplied whether your T770 is on or off NOTE The AC outlets should be used with units with a COMBINED power consumption of no more than 120 Watts 25 DIGITAL AUDIO INPUTS FIG B The T 770 has three digital inputs to allow for connection of DVD CD or Laser Disc players 1 Digital Audio input 1 allows for connection of a digital source with an Optical output Use a cable terminated with a TOS Link connector This digital input can be selected and linked with any of the analogue inputs with the exception of the EXT 5 1 CH input 2 3 Digital Audio inputs 2 and 3 allow for connection of a digital source with a Coaxial digital output Use a cable with the right impedance specifically designed for the transfer of digital signals This digital input can also be selected and linked with any of the analogue inputs with the exception of the EXT 5 1 CH input NOTE The sound o
45. op is placed vertically for best reception Placing the antenna close to large metal items such as metal shelves or radiators may interfere with reception NOTE When reception is not satisfactory using the supplied AM loop antenna alone connection of an external antenna is recommended Do not connect anything other than a loop antenna to the AM ANTENNA terminal Do not remove the AM loop antenna The antenna cable to the loop antenna must not exceed 3 meters 2 ANTENNA Aribbon wire FM antenna is included and should be connected to the FM connector at the rear of the unit Fig 1 Fig 2 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 section s 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 3 AUX INPUT Input for audio components Use a twin RCA to RCA lead to connect the audio component left and right Audio Outputs to this input 4 CD INPUT Input for CD player analogue audio signal or other line level signal source Use a twin RCA to RCA lead
46. or buttons The selected source will be indicated in the display by a box around it Refer also to chapter Front panel Controls section 20 for more information 6 MS VOLUME MULTI SOURCE Adjust the volume for the Multi Source by pressing either the A or W button No 6 on the remote control Upon adjusting the Multi Source level the display will indicate MULTI and the corresponding level setting ranging from 78 to 0 dB Refer also to chapter Front panel Controls section 20 for more information 7 PRESET A OR V ThePreset A or W buttons will allow direct selection of the desired Preset without having to select Preset Tuning mode first 8 MASTER VOLUME Master Volume A respectively increases or decreases the Volume setting for all speakers The motorised Volume Control on the front panel will indicate the level set The VOLUME control does not affect recordings made using Tapel and Tape2 Video 1 and Video 2 outputs but will affect the signal going to the Pre amp output Audio Pre Out 9 CURSOR A V 4 AND gt The four Cursor buttons are used to navigate the cursor when using the menus with the On Screen Display Press to move cursor up W to move cursor down lt to move cursor left gt to move cursor right Refer also to chapter On Screen Display and Setting up the Surround Sound system for more information 10 LATE NIGHT The Late Night function is only available in Dolby Digital surr
47. ound mode Because of the possible wide dynamic range of Dolby Digital material it may sometimes be desirable to reduce the extremes between soft and loud passages when playing at low volume settings to retain intelligibility Press the Late Night button to engage press again to disengage When switched on the display will indicate LATE NIGHT 11 MODE SURROUND The Mode button scrolls through the available surround sound modes This button functions in the same way as the right section of the Surround Mode buttons on the T770 front panel No 19 front panel drawing Refer also to chapters Front Panel Controls section No 19 Screen Display and Setting up the Surround Sound system for more information 12 TEST Pressing the Test button engages the Test generator to allow for adjustment of all speaker levels so that each can be adjusted for equal loudness at your listening position The Display Panel shows which speaker is being fed with the test signal Press again to cancel the Test mode Use the Channel Select button No 13 and Level buttons 14 to access and adjust the relative level of each channel Refer also to chapter On Screen Display and Setting up the Surround Sound system for more information 13 CHANNEL SELECT Use in combination with the On Screen Display in SPEAKER A SETUP or with Test function 12 engaged refer also to chapter Screen Display and Setting up the Surround S
48. ound system for more information Each successive press of the button causes the T770 to scroll to the next channel Left gt Center amp Right amp Right Surround gt Left Surround Subwoofer Left etc The display panel on the T770 also indicates which channel is selected Use either the Level A 14 to change relative volume level for the desired channel Refer also to the chapter Setting up the Surround Sound system for more information 14 LEVEL With the Level A W buttons the relative volume level trims for Center Left and Right Surround channels can be adjusted Press the Channel Select button No 13 to select the channel for which you wish to adjust the level Refer also to the chapter Setting up the Surround Sound system for more information Other than the commands relating to the NAD T770 receiver itself there are other buttons which will operate most NAD CD players and Cassette decks equipped with NAD Link 15 CD PLAYER CONTROL for use with NAD CD Player engages Pause engages Stop Il engages Play or toggles between Play and Pause 44 PPI engages Track skip Press once to respectively go to the next track or to return to start of current or previous track DISC Go to next disc for NAD CD changers 17 18 16 CASSETTE DECK CONTROL For use with single DECK B or double transport A and B NAD Cassette Decks or engages Forward Play or Reverse Pl
49. ower amplifier built in for an additional subwoofer The Subwoofer pre out allows for connection to a sub bass speaker system with its own external or integrated power amplifier active subwoofers NOTE When headphones are inserted the signal from the Subwoofer output will be muted When speakers B is selected the Subwoofer output will also be muted 17 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 off If you are likely to play at high levels that exceed the amplifier s power capability then switch Soft Clipping on 18 FRONT SPEAKERS A amp B The Front A and B speaker outputs are switched on and off respectively by using the Speaker A and Speaker B button on the front panel Use the SPEAKER Front A CENTER and SURROUND connections for a surround sound set up Use the SPEAKER FRONT B connections for an extra pair of speakers to be used for a different listening area such as a dining room or kitchen for instance No surround sound modes are available when Speakers B are selected NOTES Speakers B can
50. r the screen you must select another system PAL or NTSC While pressing the Memory button No 14 press the Video 1 input selector button No 6 repeatedly until the desired system is shown in the display area If your television and your sources are multi standard it is recommended you choose the OSD AUTO option In this case the T770 will automatically select the system used by the connected video input signal The OSD can be engaged by pressing one of the four cursor buttons on the remote control No 9 The main menu will appear see Fig 6 MAIN Input Selector Surround Setup Screen Setup Speaker A Setup Speaker B Setup Fig 6 Use the cursors buttons on the remote control to navigate select the desired menu and options The A and W buttons are used to navigate and select an option indicated by highlighting the available option the lt and buttons to change setting from the highlighted section Selecting EXIT from the Main menu will switch the OSD off Selecting EXIT from any of the other menus takes you to the previous menu The OSD menu are at maximum three layers deep this means that from the main menu layer 1 you can select a sub menu layer 2 from which you can again select a submenu layer 3 The number of starts left and right of the menu header indicates which layer is displayed 1 star for layer 1 2 stars for layer 2 3 stars for layer 3 There are various
51. round mode again If normally you use Dolby Pro Logic mode on the Video 1 and Video 2 inputs Dolby Digital on the Video 4 input EARS on CD and By Pass Stereo on the others pressing the Input Selector will automatically default to the right Surround mode without having to separately press the Surround Mode button NOTES external source such as a decoder or DVD player with a decoder built in DTS MPEG for instance can be connected to the EXT 5 1 CH input No 5 When the EXT 5 1 CH input is selected no other surround modes are available so SURROUND MODE extinguishes in the display panel To obtain the best surround sound possible it is important that all speakers have been set up correctly Refer to the chapters Screen Display and Setting up the Surround System 20 MULTI SOURCE The NAD T770 allows you to change source and alter volume for another room by remote control independently from the main listening room This means you could be enjoying a DVD in Dolby Digital Surround Mode CD in the main room and somebody else to a radio broadcast in another room at the same time Full operation of the Multi Source facility such as changing volume is possible only with remote control It is possible however to change the source for a second room by using the Multi Source button on the front panel in the same way as it is used on the remote control e On the remote control press Multi Source No 5 The MULTI SOURCE i
52. rround Sound Receiver 770 CHARACTER PRESET Lovo SPEAKERS PHONES A B OO TUNE SEARCH gt an FM MUTE MEMORY MODE DIGITAL EXT AUDIO SURROUND MULTI 5 1CH SELECTOR MODE SOURCE DEFEAT OOc 00O VOLUME VIDEO 5 TAPE 2 VIDEO 1 VIDEO 2 VIDEO 3 VIDEO 4 VIDEOS MONITOR FM AM 000 000000000 OO svoo vioed R MONO L Caupies TREBLE NAD 1998 T770 NAD 1998 7770 25 SIMPLE T770 SYSTEM SURROUND SPEAKERS M Epi im WOOFER WOOFER CAUTION SPEAKER IMPEDANCE FRONT AORIOU B 4 Q MIN SPEAKER CENTER 4 MIN SPEAKER SURROUND 6 MIN ISPEAKER S VIDEO Ammen FRONT m B CENTER AKERS our m R 2 our on Lasse 2 NE vor r 9 99 9 99 9 AUDIO OUT oT m x VIDEO2 VIDEO 3 VIDEO 4 CD IN m gt K OUT SOPHISTICATED T770 SYSTEM SUBWOOFER kK SURROUND SPEAKERS sach source meur R F L SURROUND FRONT CENTER SURROUND FRONT R CAUTION SPEAKER IMPEDANCE L FRONT AOR OUB 40 MIN SPEAKER CENTER An MIN ISPEAKER SURROUND 6 MIN ISPEAKER R SOFT OOOO Oa Sus Sus WOOFER wooren
53. stalling surround speakers will greatly enhance the surround experience as these add considerably to the overall ambience Dolby Pro Logic encoded material is deliberately limited in dynamic range and frequency bandwidth for the surround channel and thus only requires speakers of far lesser specification compared to the front channels Dolby Digital however is a full range system with two independent surround channels and with dynamics equal to that of the front channels For this reason it is advisable to choose loudspeakers which come close in power handling and performance capability to those of the front channels For best results the Surround loudspeakers should not beam the sound directly at the listener One way of achieving this is to use dipole Surround speakers which aim the sound down the walls rather than directly into the room Choose Subwf and select YES if you do have a subwoofer connected NO if not Many film soundtracks rely heavily on very low frequency sound effects that are difficult for normal or smaller hi fi speakers to reproduce To faithfully reproduce these low frequencies you can use a specially designed low frequency loudspeaker with its own built in amplifier active subwoofer Because it is difficult to hear which direction very low freguencies are coming from you only normally need one subwoofer and this can be placed virtually anywhere in the room The Subwoofer output of the T770 is
54. t at OdB and to match the other speakers to it Normally if the Right speaker is located at the same distance from the listening position to the Left speaker it should be set at the same level as the Left speaker The Level for each speaker can be adjusted in 1dB increments Continue to calibrate the level for each speaker until for equal loudness is achieved at your listening position A more accurate adjustment can be made using a sound level meter if available Set the meter to Slow and C weighted modes and re check the settings with the meter placed in several different positions in the general listening area If a Sub Woofer is used on the system adjust the Sub Woofer s level control so that it is audible but does not dominate the sound The Level settings are stored in the T770 s memory They are automatically recalled when the unit is switched on Depending on the software played back on the T770 is may sometimes be desirable to make minor adjustments to the level of the Center Surround speaker or subwoofer Instead of through the OSD Speaker Setup procedure it is also possible to access Level Calibration direct Make sure the volume is set to a normal listening level On the remote control press the Test button No 12 The test signal is now audible through the Left speaker Press the Channel Select button No 13 to select the speaker for which you wish to adjust the level Each successive press of the butto
55. t 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 DO NOT ATTEMPT SERVICING OF THIS UNIT YOURSELF REFER SERVICING TO QUALIFIED SERVICE PERSONNEL Upon completion of any servicing or repairs request the service shop s 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 ATTENTION POUR EVITER LES CHOC ELECTRIOUES INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSOU AU FOND CAUTION TO PREVENT
56. 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 14 again The Memory light in the Display Panel will go out and the station is now stored in your NAD T770 s 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 over write an existing programmed Memory Preset By doing this you will replace the radio station previously held on that Preset number RECALLING A PRESET STATION To select a Preset station select the Preset mode by pressing the Preset button No 13 until PRESET lights up in the display pressing the Bank button No 12 select which Bank of Presets you want to use A B C or D indicated in the display e Press either the Tune Search gt or lt q buttons No 15 until the right Preset is found and shown in the Display Panel NOTE 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 NOTE The 120V versions North America do not have RDS Radio Data System DELETING A STORED PRESET You can empty a Preset by deleting the stored informat
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