Nad T750 User manual

T750

Surround Sound AM/FM Receiver

Owner’s Manual

Manuel d’Installation

Bedienungsanleitung

Manual del Usuario

Manuale delle Istruzioni

Manual do Proprietário

Bruksanvisning

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 manufacturer’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 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.

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 ÉVITER LES CHOC ELECTRIQUES, INTRODUIRE LA

LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE

CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU’AU

FOND.

CAUTION

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.

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, 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 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).

EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL

CODE INSTRUCTIONS CONTAINED IN ARTICLE 810 - RADIO AND

TELEVISION EQUIPMENT.

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.

CAUTION

RISK OF ELECTRIC

SHOCK DO NOT OPEN

ATTENTION:

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.

IMPORTANT SAFETY INSTRUCTIONS

REAR PANEL CONNECTIONS

FRONT PANEL CONTROLS

FIGURE 1 FIGURE 2

FIGURE 3

15ms

20ms

25ms

30ms

0510 15 20 25 30 35

DISTANCE FROM FRONT SPEAKERS

USABLE SPEAKER PLACEMENT RANGE WITH

XXms DELAY TIME

25ms 20ms 15ms

10ms

15ms

5ms

HAAS EFFECT

DIFFERENTIAL

ARRIVAL TIME

PREFERRED

DISTANCE FROM REAR SPEAKERS (FEET)

ACCEPTABLE

NOT RECOMMENDED

DOLBY DELAY

FIGURE 5

FIGURE 4

NOTES ON INSTALLATION

Your NAD T750 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 T750 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. Audio RCA leads will function correctly for video

signals, although it is recommended to use dedicated video leads

where possible. 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 T750, 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. 5.1 CHANNEL INPUTS

Inputs for the multi-channel audio signals from an external

decoder, such as a DVD player with integrated Dolby Digital

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 decoder’s subwoofer output to the Subwoofer input

and the decoder’s Centre channel output to the Centre channel

input. Make sure you to follow colour coding of the plugs to

ensure that both Centre and Subwoofer are connected correctly,

for instance, use the red plugs at either end to connect the centre

channel and the white plugs for the subwoofer channel.

2. CD INPUT

Input for CD player (analogue audio signal) or other line-level

signal source. Use a twin RCA-to-RCA lead to connect the CD

player’s left and right ‘Audio Outputs’ to this input.

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. 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.

5. 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.

6. VIDEO 1 TO VIDEO 3 (AUDIO)

Inputs for the audio playback from a VCR or other video device

such as a stereo TV, satellite 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 inputs marked VIDEO 1, VIDEO 2 or VIDEO 3. VIDEO 1 to

3 are used for playback only, use VIDEO 4 if you want to connect

a VCR for recording and playback through the T750.

7. VIDEO 4 (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 4 IN connectors

for playback. Connect the left and right ‘Audio In’ of the VCR to the

VIDEO 4 OUT connectors for recording. These audio inputs are

used in conjunction with the composite (line) video inputs

marked VIDEO 4 IN and the video outputs marked VIDEO 4 OUT.

8. AM ANTENNA

An AM loop antenna is supplied with the T750 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. 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.

NOTE: When reception is not satisfactory using the supplied AM

loop antenna alone, connection of an external antenna is

recommended. Do not remove the AM loop antenna. Do not

connect anything other than a loop antenna to the AM ANTENNA

terminal. The antenna cable to the loop antenna must not exceed

3 meters.

9. FM ANTENNA

A ribbon wire FM antenna is included and should be connected to

the FM connector at the rear of the unit (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 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.

NAD T750 Surround Sound AM/FM Receiver

10. 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 over driven.

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.

11. VIDEO 1 TO 3 (VIDEO)

Connection for the Composite video signal input for VIDEO 1,

VIDEO 2 or VIDEO 3 . Using a RCA-to-RCA lead, connect the ‘Video

Out’ of the VCR, TV, Laser Disc or satellite/cable unit. VIDEO 1 to

3 can be used for video playback only. Use VIDEO 4 if you want to

connect a VCR for recording and playback through the T750.

12. VIDEO 4 (VIDEO)

Connection for the Composite video signal input for VIDEO 4. Using

a RCA-to-RCA lead, connect the ‘Video Out’ of the VCR to VIDEO 4

IN for playback. Connect VIDEO 4 OUT to the ‘Video In’ of the VCR

to copy video signals from VIDEO 1, VIDEO 2 or VIDEO 3.

13. MONITOR OUT

Composite video output for connecting a TV or Video Monitor to

view video sources connected to VIDEO 1 to VIDEO 4. Using a

RCA-to-RCA lead, connect the ‘Video Line In’ on the TV or monitor

to the MONITOR OUT. This output can also be used as an

additional recording output if required. Video monitoring must

then be done via the output of the video recorder.

14. AUDIO PRE-OUTS

The NAD T750 receiver has five power amplifiers built-in to power

all the speakers connected to it (Left, Right, Centre, Left Surround,

Right Surround). It is also possible to use the T750 as a pre-

amplifier to drive external power amplifiers. This way, you use all

the control functions the T750 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 T750’s integrated power amplifier for that channel.

Connect the RCA-to-RCA leads from the Front left and Right, Centre,

and/or Surround Left and Right Audio pre-out connectors to the

external amplifiers. Connect speakers to the external amplifiers.

NOTES: Never connect the T750’s speaker outputs and the

speaker outputs of an external amplifier to the same speakers.

Make sure the T750 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.

15. SUB WOOFER OUT

Unlike for the full range five channels as described above, there is

no power amplifier built-in for an additional subwoofer. The

Subwoofer pre-out allows for connection to a sub-bass speaker

system with its own power amplifier.

16. FRONT SPEAKERS

These speaker outputs are switched on and off by using the

SPEAKERS button on the front panel.

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 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 T750.

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. 3).

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.

CAUTION: 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: 4 ohms min. per speaker

CENTRE SPEAKER: 4 ohms min.

SURROUND SPEAKERS: 6 ohms min. per speaker

17. CENTER SPEAKER

This connects the centre loudspeaker that is used when the T750

is operated in Dolby* Pro Logic, Dolby 3 stereo mode or with the

5.1 Ch. input selected. Connect the ‘Center +’ to the ‘+’ terminal

on your centre loudspeaker and the ‘Center -’ to the loudspeaker’s

‘-’ terminal.

Strip 1/2” (1.27cm) of insulation from the end of the speaker

cable and twist the bare wires so that there are no loose strands.

These terminals operate in the same way as the Front Speaker

terminals. These speakers operate in conjunction with the Front

Speakers and are switched on and off by using the SPEAKERS

button on the front panel.

18. SURROUND SPEAKERS

This connects the rear loudspeakers that are used when the T750

is operated in Dolby Pro Logic, Hall modes or with the 5.1

Ch. input. Connect the right Surround 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

loudspeaker’s ‘-’ terminal. Connect the terminals marked ‘L +’

and ‘L -’ to the left speaker in the same way.

Strip 1/2” (1.27cm) of insulation from the end of the speaker

cable and twist the bare wires so that there are no loose strands.

These terminals operate in the same way as the Front Speaker

terminals. These speakers operate in conjunction with the Front

Speakers and are switched on and off by using the SPEAKERS

button on the front panel.

19. 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 T750’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 from the remote control

facilities of one unit.

* Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. Confidential Unpublished Works.

20. AC OUTLETS

(120V NORTH AMERICAN VERSIONS ONLY)

The AC power cords of other units in the audio system can be

connected directly to the T750’s AC outlets. If another stereo

component is plugged into the SWITCHED AC outlet, power will be

supplied to that component only when your T750 is turned on.

If another stereo component is plugged into the UNSWITCHED AC

outlet, power will be supplied whether your T750 is on or off.

NOTE: The AC outlets should be used with units with a

COMBINED power consumption of no more than 120 Watts.

21. AC POWER CORD

After you have completed all connections to the amplifier, plug the

AC line cord into a “live” wall socket.

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 (located just over the Speakers button)

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 T750 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.

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 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. 2) just

over the green POWER button on the front panel (No. 1) In Stand-by

mode the T750 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. 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, tone and balance

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.

Press the Speakers button (No. 4) to turn off all speakers for

headphone listening only.

NOTE: Listening at high levels can damage your hearing.

4. SPEAKERS

The SPEAKERS button turns the speakers connected to the FRONT,

CENTRE and SURROUND SPEAKERS terminals on or off. When the

speakers are turned on, the SPEAKERS indicator lights up.

Press Speakers to switch off all speakers for headphone listening

(No. 3) without the speakers playing simultaneously.

NOTE: Always turn the volume down when engaging or

disengaging Speakers.

INPUT AND MONITOR SELECTORS

5. EXT. 5.1CH

Selects the multi-channel output signal from the DVD player or

external decoder source connected to the 5.1 Ch. input as the

active input.

NOTES: The Surround mode button (No. 16) does not have any

effect in this mode.

No audio signal is available from the Tape 1, Tape 2 and Video 4

outputs when the Ext. 5.1Ch, input has been selected.

6. VIDEO 1 TO VIDEO 4, TAPE 1, TAPE 2

MONITOR, FM, AM, AUX, CD

These buttons select the active input to the T750 and the signal sent

to the loudspeakers and the Tape, Video 4 and TV monitor outputs.

The name of the Input and Surround Mode will be shown in the

Display Panel.

VIDEO 1 to VIDEO 3 Selects the signal from stereo

TV/Satellite/Cable receiver or Laser Disc connected to VIDEO 1, 2

or 3 as the active input. Video 1,2 or 3 is shown in the Display

Panel when these are selected.

VIDEO 4 VCR Selects the VCR connected to VIDEO 4 as the active

input. Video 4 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

when TAPE 2 is selected, then the CD signal will continue to be

selected and sent to both the TAPE 1, TAPE 2 and Video 4 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.

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.

VOLUME, BALANCE AND TONE FUNCTIONS

7. 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 or button. The Volume control does not affect

recordings made using the Tape and Video 4 outputs but will affect

the signal going to the Pre-amp output (Audio 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 and Video 4 outputs but will

affect the signal going to the Pre-amp output (Audio Pre Out).

8. BASS & TREBLE CONTROLS

The T750 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 and Right Front speakers only. In Dolby Pro Logic, Dolby 3

Stereo, Hall modes or the EXT. 5.1CH input selected, the Centre

and Surround speakers maintain a ‘flat’ response, regardless of

the tone control settings. 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. TONE DEFEAT

The Tone Defeat switch by-passes the tone control section of the

T750. 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.

10. BALANCE

The BALANCE control adjusts the relative levels of the Left and

Right Front speakers. The 12 o’clock 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 or Video line outputs but will affect the signal going to the

Pre-amp outputs (Audio Pre Out).

TUNER

11. TUNE/SEARCH AND

The function of these buttons depends on the tuning mode

selected with the Preset button (No. 12). The Preset button toggles

between the two operation modes:

a) Preset mode (indicated in the display area): 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.

a) Tune mode: Press the or 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 or you can 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 or 0.1 MHz steps (depending on version) 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 T750. 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, “ TUNED ” 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 also to chapter “Storing AM and FM stations” for additional

information.

NOTE: The 120V versions (North America) do not have RDS

(Radio Data System).

12. 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 30 Presets, either AM or FM, can be stored in three Preset

Banks, which can contain up to 10 Preset stations each. The

Preset number is shown in the Display Panel.

Refer also to section 11 and chapter “Storing AM and FM stations”

for additional information.

13. BANK

Pressing Bank switches between the T750’s 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 also to chapter “Storing AM and FM stations” for more

information.

The remote control handset also has a Bank button and performs

the same function.

14. MEMORY

The Memory button is used to store stations into the three Preset

Memory Banks. Used in conjunction with the Tune/Search (No.11)

buttons. When Memory is active, the Preset number flashes and the

red ‘MEMORY’ indicator is shown in the Display Panel.

Refer also to chapter “Storing AM and FM stations” for more

information.

15. 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 ON”. Press the FM Mute/Mode button to

disengage the muting circuit and switch from stereo to mono

reception. The status of FM Mute/Mode is indicated 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

16. SURROUND MODE

The Surround Mode button scrolls through the T750’s surround

modes: Dolby Pro Logic, Dolby 3 Stereo, Hall and By-Pass

(normal Stereo).

Dolby Pro Logic and Dolby 3 Stereo both decode the surround

sound signals encoded in movie sound tracks from video or TV. To

decode correctly, the video or TV signal must be of a Dolby

Surround or Dolby Stereo soundtrack and coming from a stereo

VCR, TV or satellite/cable receiver.

In the Dolby Pro Logic the rear Surround speakers are also

activated. Use of a centre channel speaker is optional (set with the

Centre button No. 17).

In the Dolby 3 Stereo mode, the rear Surround speakers are

inoperative; the centre channel however is activated in this mode.

Dolby 3 Stereo can be a good alternative to Pro Logic if it isn’t practical

or if space doesn’t allow for the installation of Surround speakers.

For more information refer also to the chapter “Setting up the

Surround System” and appendix “A short guide to Surround Sound”.

In the HALL mode, a realistic level of ambience of surround sound

is added to a normal stereo source such as a CD or FM radio. The

centre channel is inoperative in this mode.

BY-PASS switches to normal Stereo operation.

The selected mode is displayed in the main area of the Display

Panel for 3 seconds and is continuously shown in Surround Mode

area of the Display Panel.

As an additional convenience feature, your T750 memorises

which surround mode you have used with the given input

selection. When you next select that input, your T750 will

automatically choose the same Surround mode again. If you

normally use Dolby Pro Logic mode on the Video 1 and Video 2

inputs, Dolby 3 Stereo mode on the Video 3 input, Hall mode on

FM, 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: An external source such as a decoder or DVD player with

a decoder built-in (Dolby Digital, DTS* for instance) can be

connected to the 5.1Ch 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.

17. CENTER

Selects the type of centre speaker used on the main speaker

system. The Center button is only operative with Dolby Pro Logic

or Dolby 3 Stereo selected.

In Dolby Pro Logic mode NORMAL, WIDEBAND, PHANTOM are the

available options. In Dolby 3 Stereo mode NORMAL and WIDEBAND

are available. Select the mode appropriate to the T750’s set-up

The NORMAL mode is used when the centre speaker is smaller than

the front left and right speakers. This mode produces a true centre

image with the very low frequencies (below 70 Hz) filtered out.

The WIDEBAND mode is used when the centre speaker is the same

type as the front left and right speakers. This mode produces a

true centre image with a full frequency range and no low

frequency filtering.

The PHANTOM mode is used when there is no centre speaker

installed. The T750 places the centre information equally on the

left and right front speakers so producing a ‘Phantom’ central

sound image.

The selected Center Mode is displayed for 3 seconds in the main

area of the Display Panel. It is stored in the T750’s memory and

will be automatically recalled each time the unit is switched on.

18. DELAY

Selects the amount of delay applied to the surround speakers

when the T750 is used in DOLBY PRO LOGIC or HALL modes.

Pressing the DELAY button steps the Delay times in 5mS steps from

5mS to 30mS for Hall mode and from 15mS to 30mS for Dolby

Pro Logic mode. Separate delay times can be stored for DOLBY

PRO LOGIC and HALL modes and are held in the T750’s memory.

They are automatically recalled each time the DOLBY PRO LOGIC

or HALL mode is selected.

This function can be altered only when the T750 is in DOLBY PRO

LOGIC or HALL Mode.

Refer also to the chapter “Setting up the Surround Sound system”

for more information.

STORING AM & FM STATIONS

TO STORE A PRESET

•Tune to the radio station you wish to enter into a Preset (refer

to chapter “Front Panel Controls” section 11). 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. 13) to select which of the three Banks of

Presets (A, B or C) you want to store the station into. Press

either the Tune/Search 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. 14) again. The Memory light in the Display

Panel will go out and the station is now stored in your NAD

T750’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. 12) until “PRESET” lights up in the display.

•By pressing the Bank button (No. 13) select which Bank of

Presets you want to use (A, B or C, indicated in the display).

•Press either the Tune/Search or buttons (No. 11)

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).

10 * “DTS” is a trademark of Digital Theater Systems

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. 14), hold it down and press the

FM Mute/Mode button (No. 15). 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.

REMOTE CONTROL

The T750’s Remote Control handles all the key functions of the

T750 and 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 4, Tape 1, 2, Aux and CD Input selector,

Speaker, Bank and Surround Mode buttons perform the same

function as those on the front panel of the T750. There are a few

differences and extra functions with the remote control handset

however (numbers refer to fig. 4):

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 the

unit on from Stand-by; the last selected source will be indicated in

the display.

2. SLEEP

Press SLEEP to make the T750 automatically switch off after a

preset number of minutes. Pressing the SLEEP button once will set

the sleep time to 90 minutes, after which the T750 will

automatically switch off into Standby mode. Sleep mode and the

Sleep delay is shown on the Display Panel. To adjust the Sleep

Delay, hold down the SLEEP button. This 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

STANDBY 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 T750’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. CHANNEL SELECT

Press the Ch. Select button to address the Centre, Left Surround or

Right Surround channels for adjustment of volume trims relative

to Left and Right channels. Each successive press of the button

causes the T750 to scroll to the next channel: Centre ➜Right

Surround ➜Left Surround ➜Centre, etc. The display indicates

which channel is selected. Within the default time of 8 seconds,

use either the Level or (No. 7) to change relative

volume level for the desired channel.

Refer also to the chapter “Setting up the Surround Sound system”

for more information.

6. LEVEL

With the Level or (No. 7) buttons the relative volume

level trims for Centre, Left and Right Surround channels can be

adjusted. Press the Channel Select button (No. 5) 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.

7. TEST

Pressing the Test button engages the Test generator which

generates a noise signal that scrolls to each of the speaker

channels (Left ➜Centre ➜Right ➜Left & Right Surround ➜

Left ➜etc. for Dolby Pro Logic; Left ➜Centre ➜Right ➜Left

➜etc. for Dolby 3 Stereo), 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.

8. MASTER VOLUME

Master Volume or 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 the Tape and Video 4

outputs but will affect the signal going to the Pre-amp output

(Audio Pre Out).

9. PRESET OR

The Preset or buttons will allow direct selection of the

desired Preset without having to select Preset Tuning mode first.

Other than the commands relating to the NAD T750 receiver itself,

there are other buttons which will operate most NAD CD players

and Cassette decks equipped with NAD Link.

10. 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.

DISC Go to next disc (for NAD CD changers).

11. 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 record-

pause. Press Play to start recording.

Stops Play or Recording.

engages Rewind.

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 work at its best, the output levels of the T750’s surround

facilities need to be adjusted so that there is an even balance of

sound from all the speakers in the system.

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.

The adjustment of speaker levels is done using the Test (No. 7),

Channel Select (No. 5) and Level (No. 6) functions on the Remote

Control. It is important first to correctly phase all the speakers in

the system. Check that the positive (+) terminals of the T750

speaker outputs are connected to the positive (+) connector on

the each of the speakers. Refer also to the section “Speaker

Phase” in the chapter “Appendix” for additional information.

Before starting the set-up procedure, ensure that the Centre

(No. 17) mode is set correctly for your speaker configuration. Set

the BALANCE control to the position normally used for stereo

sources (usually the 12 o’clock position).

•With the speakers connected and the VOLUME turned down to

zero, select the Dolby Pro Logic or Dolby 3 Stereo mode using

the Surround Mode button (No. 16) and press Test on the

Remote Control (No. 7 in fig. 4). This generates a test signal

that scrolls to each of the speaker channels (Left ➜Centre ➜

Right ➜Left & Right Surround ➜Left ➜etc. for Dolby Pro

Logic; Left ➜Centre ➜Right ➜Left ➜etc. for Dolby 3

Stereo), 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.

Turn the Volume (No. 7; No. 8 in fig. 4) up until the signal is

moderately loud through the Left and Right Front speakers.

•Press the CH.Select button (No. 5 in fig. 4) on the remote

control until “CENTRE” appears in the display. Within the 5s

default time, press the Level or button on the

Remote Control (No. 6 in fig. 4) to increase or decrease the

Centre speaker’s loudness so that it matches the levels being

produced by the Left and Right speakers. The relative level of

the Centre channel is shown in the Display Panel and can be

changed in dB steps.

•In Dolby Pro Logic or Hall mode Press the CH.Select button

(No. 5 in fig. 4) on the remote control until “R-SUR.” appears

in the display to adjust the Right Surround speaker. Again,

within the 5s default time, use the Level or buttons

to set the level so that it matches the levels produced by the Left

and Right Front speakers.

•Press the CH.Select button (No. 5 in fig. 4) on the remote

control until “L-SUR.” appears in the display to adjust the Left

Surround speaker. Repeat the same procedure as described

above to match the levels produced by the Left and Right Front

speakers

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. Sub-

Woofer levels can be later fine-tuned using programme material.

The Level settings are stored in the T750’s memory. They are

automatically recalled when the unit is switched on.

NOTES: In Dolby 3 Stereo Surround mode the Surround channels

are inoperative. Only the Centre channel can be accessed to adjust

in level.

In Dolby Pro Logic with Phantom Centre mode selected, and Hall

Surround Modes the Centre channel is inoperative. Only the Left

Surround and Right Surround channels can be accessed to adjust

in level.

SETTING THE SURROUND DELAY

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.

To resolve this problem, the Dolby Pro Logic circuit includes a

Surround delay. This ensures sound coming from the surround

speakers always arrives at the listener’s ears after the sound from

the front speakers.

The exact amount of delay required depends on the relative

distances between the Front and Surround speakers and the

listening position in the room.

First make a note of the distance between the surround speakers and

the listening position. Now make a note of the distance between the

front speakers and the listening area. Note where the two distances

intersect this will give the correct Delay setting (see fig. 5).

To adjust the Delay setting, put the T750 into Dolby Pro Logic

mode and press DELAY on the front panel (No. 18) or the Remote

Control. Continue pressing DELAY until the correct value is shown

in the Display Panel.

The Delay settings are stored in the T750’s memory. They are

automatically recalled when the unit is switched on.

APPENDIX

A SHORT GUIDE TO SURROUND SOUND

Since the middle of the 1970’s, film companies have been making

movies in increasing numbers in Dolby Stereo, the four channel

surround sound system available in most movie theatres today.

Fortunately it is a simple operation to take the film’s Dolby Stereo

soundtrack and place it on a stereo VHS videotape, Laser Disc or

Video-CD. The sound track does require some conversion for

home use, and the domestic version of Dolby Stereo is called

Dolby Surround.

Today, most video copies of movies also contain this surround

information originally designed for the movie theatre. As well as

videos, Dolby Surround is also being used on TV programmes and

on music CDs, and all of these can be decoded using your T750.

Unlike the quadraphonic systems which tried to produce pin-

point sounds coming from all directions, Dolby Surround is

designed to give you a clear front image with the Surrounds filling

the room with atmospheric sound.

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. An alternative is to use standard

small loudspeakers for Surrounds, but not to point them directly

at the listening position. It is always worth experimenting with

various Surround speaker positions to see which works best in

your room.

With the recent advent in digital technology, various new surround

systems have emerged. Best known are Dolby Digital and DTS,

both are sometimes referred to as 5.1 formats (5 independent,

full range channels and 1 “Effects channel” for bass). The Dolby

Digital and/or DTS formats can be found on some Laser Discs and

DVDs, for instance.

Using the NAD T750’s Ext. 5.1Ch. input, the decoded, analogue

audio Dolby Digital or DTS can be directly connected. Already

there are DVD players available with integrated Dolby Digital

decoder, which will connect directly to the T750.

SPEAKER PLACEMENT

Placement of the speakers in a Dolby Pro Logic surround system

plays an important role in the performance of the system.

FRONT SPEAKERS

The front speakers should be placed with the left and right

speakers evenly spaced either side of the TV screen. The centre

speaker should be placed underneath or above the TV monitor so

that dialogue is localised close to the TV image.

SURROUND SPEAKERS

The surround speakers are used to create a diffuse room-filling

atmospheres rather than pinpoint sound effects. Surround

speakers should be wall or shelf mounted fairly high up either on

the side walls, rear wall or in the rear corners. Speakers can be

mounted facing sideways or upwards to increase the diffusing

effect by bouncing the sound off the walls and ceiling before it

reaches the listener.

SUB-WOOFER

The very low frequency sounds produced by the sub-woofer are

difficult to localise so the Sub-woofer can be placed virtually

anywhere in the room. Placing Sub-woofers against walls or in

corners will increase the amount of bass produced in the room.

WHY HAVE A CENTRE SPEAKER?

The Dolby Pro Logic decoder produces three separate outputs for

the Front signals - left, centre and right. On most soundtracks, the

sound effects and music are spread across all three front channels

but the dialogue is mainly fed to the centre channel only.

Using a separate centre 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.

If you are using the T750 with only two front speakers, setting the

Centre mode (No. 17) to PHANTOM will place the centre

information on both the left and right speakers. This creates the

impression of a centre channel sound source.

For best results, you should consider using a centre 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 centre channel add-ons

for existing stereo systems.

NOTE: Ensure that any speaker that is to be used near a TV or

monitor is of the magnetically shielded type (see loudspeaker’s

instruction manual). It is not normally possible to modify an

unshielded speaker to work very close to a TV or monitor.

WHY HAVE A SUB-WOOFER?

Many film soundtracks rely heavily on very low frequency sound

effects which are difficult for normal 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. Because it is difficult to hear which direction very low

frequencies are coming from, you only normally need one sub-

woofer and this can be placed virtually anywhere in the room. The

Sub-Woofer output of the T750 is designed specifically to drive a

sub-woofer system.

SPEAKER PHASE

In a home theatre system it is important that the three front

speakers are all in phase compared to each other. Incorrect phase

will produce a poor stereo image and an apparent lack of bass. If

you are using speakers all from one manufacturer and power

amplifiers all from one manufacturer then to ensure correct

phasing of the system, just make sure that all the red (+)

connectors on the power amplifier speaker outputs are connected

to the red (+) connector on the loudspeaker.

If you are using a mix of amplifiers or speakers from different

manufacturers, or using amplifiers in ‘bridge’ mode, then it is

possible that the phase can be internally reversed in the some of

the amplifiers or speakers, so you must check for correct phase

by listening.

To check phase by listening, set the T750 to Dolby Pro Logic and

FM Mute/Mode OFF and select a FM radio station. This will give

you the same sound on all three front speakers. Disconnect the

surround speakers and the right front speaker. A stable sound

image should be heard as though it comes from a single point

between the centre and left front speakers. If the signal sounds

diffuse and not as though it is coming from a single point in space,

reverse the connections to the centre loudspeaker. The signal

should now appear to come from a single point between the left

and centre speakers.

Reconnect the right front speaker and disconnect the left front

speaker and repeat the procedure for the right and centre front

speakers, changing the connection only on the right front speaker

if the phase needs correction.

Surrounds will normally be in phase with each other if they have

been correctly connected.

There is no absolute rule regarding the relative phase between the

front speakers and the surround speaker pair or the Sub-Woofer

(if used). Connecting these using the red (+) connector from the

amplifier to the red (+) connector on the speakers should

produce correct results. But in some rooms reversing the

connections may produce a noticeable increase in bass response

or an improvement in overall stereo imagery, so you may wish to

experiment with reversing the connections on both the surrounds

or reversing the connections to the sub-woofer.

TROUBLESHOOTING

NO SOUND • Power AC lead unplugged or power not

switched on

•Tape 2 Monitor selected

•Mute on

•Speakers not switched on

•Check if AC lead is plugged in and

power switched on

•De-select Tape 2 Monitor mode

•Switch off Mute

•Switch Speakers on

Problem Cause Solution

NO SOUND ONE CHANNEL • Balance control not centred

•Speaker not properly connected or

damaged

•Input lead disconnected or damaged

•Centre Balance control

•Check connections and speakers

•Check leads and connections

NO SOUND ON SURROUND CHANNELS • No surround mode selected

•Mono sound source

•Speakers not properly connected

•Surround volume level too low

•Select Dolby Pro Logic or Hall mode

•Test system with Stereo or Dolby

Surround material

•Check speakers and connections

•Increase surround volume level

NO SOUND ON CENTRE CHANNEL • Phantom Centre mode selected

•By-Pass or Hall mode selected

•Speaker not connected properly

•Centre volume level set too low

•Select appropriate Centre mode

(Normal or Wideband)

•Select Dolby Pro Logic or Dolby 3

Stereo mode

•Check Speaker and connection

•Increase centre volume level

WEAK BASS/ DIFFUSE STEREO IMAGE • Speakers wired out of phase • Check connections to all speakers in

the system

REMOTE CONTROL HANDSET NOT

WORKING

•Batteries flat, or incorrectly inserted

•IR transmitter or receiver windows

obstructed

•IR receiver in direct sun or very bright

ambient light

•Check or replace batteries

•Remove obstruction

•Place unit away from direct sun, reduce

amount of ambient light

NO SOUND WITH TUNER • Antenna leads incorrectly connected

•Station not selected or weak signal with

FM Mute on

•Check antenna connections to receiver

•Re-tune or switch off FM Mute

NOISE, HISS ON AM AND FM • Weak signal • Check station tuning. Adjust or replace

antenna

DISTORTION ON FM • Multi-path signals or interference from

another station

•Check station tuning. Adjust or replace

antenna

WHISTLES OR BUZZES ON FM & AM • Interference from other electrical

sources - computers, games consoles

•Check station tuning. Switch off or

move the source of the electrical noise

WHISTLES OR BUZZES ON AM • Interference from fluorescent lighting

or electrical motors

•Check station tuning. Adjust or replace

AM antenna

NO RDS NAME (PS) • Station signal too weak

•Station not transmitting RDS data

•Check station tuning. Adjust or replace

antenna

•No remedy

NOTES CONCERNANT L’INSTALLATION

Poser le NAD T750 sur une surface stable, plane et horizontale.

Eviter les rayons directs du soleil et les sources de chaleur et

d’humidité.

Assurer une ventilation adéquate. Ne pas poser cet appareil sur

une surface molle (moquette, par exemple). Ne pas le placer dans

un endroit confiné (sur une étagère de bibliothèque ou derrière

des portes vitrées), où le flux d’air à travers les fentes de

ventilation risque d’être entravé.

Vérifier que l’appareil est mis hors tension avant de réaliser des

connexions quelconques.

Pour vous faciliter la tâche, les bornes RCA de votre NAD T750

sont codées couleur. Rouge pour l’audio droite, blanc pour

l’audio gauche, et jaune pour la Liaison-NAD.

N’utiliser que des câbles et des connecteurs de très bonne qualité

de manière à obtenir un branchement dont la fiabilité est parfaite

et les performances optimales. Les câbles phono audio RCA

fonctionnent très bien avec les signaux vidéo, mais il est

néanmoins recommandé d’utiliser de véritables câbles vidéo dans

la mesure du possible. Vérifier que les câbles et les connecteurs

ne présentent aucune détérioration, et que tous les connecteurs

sont bien enfoncés jusqu’en butée.

Pour obtenir les meilleures performances, utiliser des câbles de

haut-parleurs d’une épaisseur égale ou supérieure au calibre 16

(1,5 mm) ou plus.

Si l’appareil doit rester inutilisé pendant un certain temps,

débrancher le cordon d’alimentation de la prise de secteur murale.

Si de l’eau pénètre à l’intérieur de votre NAD T750, couper

l’alimentation de l’appareil et retirer la fiche de la prise secteur.

Faire contrôler l’appareil par un technicien de service après-vente

qualifié, avant toute tentative de remise en service.

Ne pas retirer le couvercle. A l’intérieur, il n’y a aucun

élément sur lequel l’utilisateur peut intervenir.

Utiliser un chiffon doux sec et propre pour nettoyer l’appareil. Si

nécessaire, humecter le chiffon avec un peu d’eau savonneuse. Ne

pas utiliser de solution contenant du benzol ou quelconque autre

agent volatile.

LIAISONS SUR LE PANNEAU ARRIERE

1. ENTREES VOIES 5.1

Les entrées pour les signaux audio multivoie en provenance d’un

décodeur externe, tel qu’un lecteur de vidéodisques numériques

équipé d’un décodeur Dolby Digital intégré. Utiliser deux câbles

jumelés RCA vers RCA pour brancher les sorties audio gauche et

droite “Audio Outputs” sur le devant du décodeur aux entrées

gauche et droite sur le devant, et les sorties gauche et droite de

Sonorité Enveloppante du décodeur aux entrées gauche et droite

à la sonorisation enveloppante (surround). Utiliser un troisième

càble RCA vers RCA pour brancher la sortie subwoofer du

décodeur à l’entrée Subwoofer et la sortie Voie Centrale du

décodeur à l’entrée Voie Centrale. Respecter le codage couleur

des fiches afin de s’assurer que aussi bien la voie centrale et le

Subwoofer soient branchés correctement. Par ex., utiliser les

fiches rouges à l’un et l’autre bout pour brancher la voie centrale

et les fiches blanches pour la voie du subwoofer.

2. ENTREE CD

Entrée pour un lecteur de disques audionumériques (CD) (signal

audio analogique) ou pour une autre source de signal de niveau ligne.

Utiliser un câble jumelé RCA vers RCA pour relier les connecteurs de

sortie audio gauche et droit du lecteur CD à cette entrée.

3. ENTREE AUX

Il s’agit de l’entrée pour les appareils audio. Utiliser un câble

jumelé RCA vers RCA pour relier les connecteurs de sortie audio

[Audio Outputs] gauche et droit de l’appareil audio auxiliaire à

cette entrée.

4. MAGNETOPHONE 1 [TAPE 1]

Branchements pour enregistrement et lecture analogiques sur un

magnétophone audio de n’importe quel type (à cassette, à

bobines, DAT, MD ou DCC). A l’aide de câbles doubles RCA vers

RCA, relier les connecteurs de “Sortie Audio” gauche et droit du

magnétophone aux connecteurs [TAPE 1 IN] pour la lecture.

Relier les connecteurs “d’Entrée Audio” gauche et droit du

magnétophone aux prises de sortie [TAPE 1 OUT] pour

l’enregistrement.

5. MAGNETOPHONE 2 [TAPE 2]

Branchements pour enregistrement et lecture analogiques sur un

deuxième magnétophone audio de n’importe quel type. A l’aide de

câbles doubles RCA vers RCA, relier les connecteurs de “Sortie

Audio” gauche et droit du magnétophone aux connecteurs

[TAPE 2 IN] pour la lecture. Relier les connecteurs “d’Entrée

Audio” gauche et droit du magnétophone aux prises de sortie

[TAPE 2 OUT] pour l’enregistrement.

6. VIDEO 1 A VIDEO 3 (AUDIO)

Entrées pour la lecture audio en provenance d’un magnétoscope

ou de tout autre appareil vidéo, tel qu’un téléviseur stéréo, un

décodeur de télédistribution ou satellite, ou un Disque

Audionumérique (Laser). A l’aide de câbles doubles RCA vers

RCA, relier les connecteurs de “Sortie Audio” gauche et droit du

magnétoscope, du téléviseur, du disque laser ou du décodeur

satellite à ces entrées. Ces entrées audio sont utilisées en

combinaison avec les entrées (ligne) vidéo composites indiquées

comme VIDEO 1, VIDEO 2 ou VIDEO 3. VIDEO 1 à 3 ne peut être

utilisée que pour la lecture vidéo. Utiliser [VIDEO 4] pour

brancher un magnétoscope destiné à l’enregistrement et à la

lecture via le T750.

7. VIDEO 4 (AUDIO)

Branchements pour l’enregistrement et la lecture audio sur un

magnétoscope ou tout autre appareil enregistreur vidéo. A l’aide

de câbles doubles RCA vers RCA, relier les connecteurs de “Sortie

Audio” gauche et droit du magnétoscope aux connecteurs

d’ENTREE VIDEO 4 [VIDEO 4 IN] pour la lecture. Relier les

connecteurs “d’Entrée Audio” gauche et droit du magnétoscope

aux connecteurs de SORTIE VIDEO 4 [VIDEO 4 OUT] pour

l’enregistrement. Ces entrées audio sont utilisées en combinaison

avec les entrées vidéo composite (ligne) repérées “VIDEO 4 IN”

et avec les sorties repérées “VIDEO 4 OUT”.

NAD T750 Recepteur AM/FM Sonorite Enveloppante

8. ANTENNE AM

Une antenne cadre AM est livrée avec le T750, et permet de recevoir

les stations émettant sur la bande AM. Ouvrir la borne à l’aide du

levier, insérer le fil en provenance de l’antenne, puis fermer et

verrouiller la borne et le fil à l’aide du levier (voir la Fig. 2). Faire

des essais en mettant l’antenne dans différentes positions, mais en

s’assurant que le cadre est toujours vertical afin que la réception

soit optimale. Le fait de positionner l’antenne à proximité

d’éléments métalliques de taille importante, comme des étagères en

métal ou des radiateurs par exemple, peut affecter la réception.

NOTA: Si l’emploi de l’antenne cadre AM fournie n’offre pas une

réception de qualité suffisante, il est conseillé de brancher une

antenne à l’extérieur. Ne pas enlever l’antenna cadre AM. Ne

brancher rien d’autre que l’antenne cadre AM sur la borne AM

ANTENNA. Le câble d’antenne vers l’antenne cadre ne peut pas

excéder 3 mètres.

9. ANTENNE FM

Une antenne filiaire FM, sous forme de câble plat, est livrée avec

le T750. Cette antenne se branche sur le connecteur FM à l’arrière

de l’appareil (voir Figure 1). L’antenne câble plat doit être fixée

sur une surface verticale, et doit former un “T”.

Faire des essais en mettant l’antenne dans différentes positions, de

manière à obtenir le meilleur signal possible avec un minimum de

bruit de fond. Un signal FM insuffisant entraîne beaucoup de

sifflements, surtout en réception stéréophonique, et de

l’interférence en provenance de sources électriques externes.

Dans les endroits où la réception FM est faible, il est possible

d’améliorer les performances du tuner en utilisant une antenne

FM montée à l’extérieur du bâtiment. Un installateur d’antennes

qualifié pourra donner les conseils appropriés, et poser une

antenne adaptée aux conditions de réception locales.

10. ECRETAGE DOUX [SOFT CLIPPING]

Lorsqu’un amplificateur est poussé au-delà de sa puissance de

sortie spécifiée, on entend un son dur et déformé lors des

passages à sonorité forte. Cela provient du fait que l’amplificateur

coupe ou “écrête de façon dure” les pointes sonores pour

lesquelles sa conception ne permet pas la reproduction. Le circuit

d’écrêtage doux de NAD limite en douceur la forme d’onde à la

sortie, pour minimiser la distorsion audible lorsque

l’amplificateur est poussé au-delà de ses limites.

Si votre écoute comporte des niveaux modérés de puissance,

l’Ecrêtage Doux peut être laissé sur ARRET [OFF]. Si, par contre,

vous pensez passer de la musique à des niveaux très élevés,

susceptibles de dépasser la capacité de puissance de l’amplificateur,

nous préconisons de mettre l’Ecrêtage Doux sur MARCHE [ON].

11. VIDEO 1 A 3 (VIDEO)

Il s’agit du branchement pour le signal vidéo composite pour

VIDEO 1, VIDEO 2 ou VIDEO 3. A l’aide d’un câble RCA vers RCA,

brancher la sortie [Video Out] du magnétoscope, du téléviseur, du

lecteur de disques laser ou de l’appareil satellite/télédistribution.

VIDEO 1 à 3 ne peut être utilisée que pour la lecture vidéo. Utiliser

[VIDEO 4] pour brancher un magnétoscope destiné à

l’enregistrement et à la lecture via le T750.

12. VIDEO 4

Il s’agit de la connexion d’entrée pour le signal vidéo composite pour

VIDEO 4. A l’aide d’un câble RCA vers RCA, brancher la sortie [Video

Out] du magnétoscope sur [VIDEO 4 IN] pour la lecture. Brancher

VIDEO 4 OUT sur [Video In] du magnétoscope pour copier les

signaux vidéo provenant de VIDEO 1, VIDEO 2 ou VIDEO 3.

13. SORTIE MONITEUR [MONITOR OUT]

Il s’agit de la sortie vidéo composite pour y brancher un

Téléviseur ou un Moniteur Vidéo pour visionner les sources vidéo

branchées sur VIDEO 1 jusqu’à VIDEO 4. A l’aide d’un câble RCA

vers RCA, brancher “l’entrée ligne Vidéo” [Video Line In] du

téléviseur ou du moniteur sur MONITOR OUT. On peut aussi

utiliser cette sortie comme sortie d’enregistrement

supplémentaire, le cas échéant. Dans ce cas, le contrôle du signal

vidéo devra être effectué en branchant le moniteur sur la sortie de

l’enregistreur vidéo.

14. AUDIO PRE-OUTS

Le récepteur NAD T750 est équipé de cinq amplificateurs qui sont

incorporés pour alimenter tous les haut-parleurs qui y sont

branchés (Gauche, Droit, Centre, Sonorité Enveloppante Gauche,

Sonorité Enveloppante Droite). Il est également possible d’utiliser

le T750 en tant que préamplificateur pour commander les

amplificateurs de puissance externes. De cette façon, vous pouvez

utiliser toutes les fonctions de commande du T750, telles que la

sélection d’entrée, le mode de sonorité enveloppante, le volume

sonore, les commandes de tonalité etc., mais au fait c’est

l’amplificateur de puissance externe qui alimente le haut-parleur

qui y est branché au lieu de l’amplificateur de puissance intégré

du T750 pour cette voie.

Brancher les câbles RCA vers RCA des connecteurs Pre-Out

gauche, droit, centre sur le devant et/ou les câbles des

connecteurs Pre-Out gauche et droit à la sonorisation

enveloppante (surround) aux amplificateurs externes. Brancher

les haut-parleurs aux amplificateurs externes.

NOTAS: Ne jamais brancher les sorties de haut-parleur du T750

et les sorties de haut-parleur d’un amplificateur externe aux

mêmes haut-parleurs.

S’assurer que le T750 et les amplificateurs de puissance auxquels

il sera branché soient mis hors tension. Le volume étant réglé sur

un niveau bas, mettre sous tension seulement si tous les

branchements ont été faits.

15. SORTIE SUB WOOFER

[SUB WOOFER OUT]

Contrairement aux cinq voies à plage complète décrites ci-dessus,

il n’y a pas d’amplificateur de puissance incorporé pour un

subwoofer supplémentaire. La sortie de préamplification

[Subwoofer pre-out] permet le branchement à un système de

haut-parleurs “sous-graves” [sub-bass] ayant son propre

amplificateur de puissance.

16. HAUT-PARLEURS AVANT

Ces sorties haut-parleurs sont alimentées et mises hors tension à

l’aide du bouton HAUT-PARLEURS [SPEAKERS] sur la face parlante.

Brancher le haut-parleur droit sur les bornes repérées “R+” et

“R-”, en s’assurant que le “R+” est relié à la borne “+” de votre

haut-parleur et que “R-” est relié à la borne “-” de votre haut-

parleur. Brancher les bornes repérées “L+” et “L-” au haut-

parleur gauche en procédant de la même manière.

N’utiliser que du fil torsadé haute puissance (calibre 16;1,5 mm

ou plus) pour brancher les haut-parleurs à votre T750.

Devisser la bague en plastique du connecteur de haut-parleur.

Insérer la broche ou le fil nu dans le trou, puis fixer le câble en

vissant la bague de la borne (voir Figure 3).

Afin d’éviter tout risque que le métal nu des câbles de haut-

parleurs ne touche le panneau arrière ou un autre connecteur,

veiller à ce que la longueur dénudée ou la longueur de la broche

ne dépasse pas 1/2” (1,27 cm), et qu’il n’y ait pas de brins libres.

ATTENTION: Cet appareil est conçu pour produire un son de la

plus haute qualité lorsque vous branchez des haut-parleurs à

impédance à l’intérieur des plages stipulées par l’appareil.

Veuillez vérifier les informations suivantes et choisir des haut-

parleurs ayant les impédances correctes pour les connexions.

HAUT-PARLEURS AVANT 4Ωmin.

HAUT-PARLEUR CENTRAL [CENTER SPEAKER] 4Ωmin.

HAUT-PARLEURS DE SONORISATION ENVELOPPANTE 6Ωmin.

17. HAUT-PARLEUR CENTRAL

[CENTER SPEAKER]

Ceci assure la connexion du haut-parleur central qui sert lorsque

le T750 fonctionne en mode Dolby Pro Logic, en mode Dolby 3

Stéréo ou lorsque l’entrée voie 5.1 est sélectionnée. Brancher

“Centre +” à la borne “+” de votre haut-parleur central et

“Centre -” à la borne “-” du haut-parleur.

Dénuder l’extrémité du câble du haut-parleur sur une longueur de

1,27 cm et torsader ensemble les brins de fil dénudés afin qu’aucun

brin ne soit libre. Ces bornes fonctionnent de la même manière que

pour le Haut-Parleur Avant. Ces haut-parleurs fonctionnent en

conjugaison avec les Haut-Parleurs Avant, et se mettent en ou hors

circuit à l’aide du bouton SPEAKERS sur la face parlante.

18. HAUT-PARLEURS DE SONORISATION

ENVELOPPANTE

Ceci assure la connexion des haut-parleurs arrière qui servent

lorsque le T750 fonctionne en mode Dolby Pro Logic, mode Salle

[Hall] ou avec l’entrée voie 5.1 [5.1 Ch] sélectionnée. Brancher

le haut-parleur droit sur les bornes repérées “R+” et “R-”, en

s’assurant que le “R+” soit relié à la borne “+” de votre haut-

parleur et que “R-” soit relié à la borne “-” de votre haut-parleur.

Brancher les bornes repérées “L+” et “L-” au haut-parleur

gauche en procédant de la même manière.

Dénuder l’extrémité du câble du haut-parleur sur une longueur de

1,27 cm et torsader ensemble les brins de fil dénudés afin qu’aucun

brin ne soit libre. Ces bornes fonctionnent de la même manière que

pour le Haut-Parleur Avant. Ces haut-parleurs fonctionnent en

conjugaison avec les Haut-Parleurs Avant, et se mettent en ou hors

circuit à l’aide du bouton SPEAKERS sur la face parlante.

19. ENTREE/SORTIE LIAISON-NAD

[NAD-LINK IN OUT]

Le connecteur de Liaison-NAD [NAD-Link] sert à relayer les

commandes en provenance d’autres appareils équipés de

connecteurs de Liaison-NAD. Ceci permet d’assurer une

commande centralisée pour tout un réseau, et permet aussi de

télécommander, à l’aide de la télécommande du récepteur,

certaines fonctions de base d’autres appareils NAD (tels que le

lecteur CD ou le magnétophone) également pourvus d’une liaison

NAD. Afin qu’il puisse fonctionner avec ce type d’appareils, il faut

brancher la Sortie Liaison NAD [NAD-Link Out] du T750 à

l’Entrée Liaison NAD [NAD-Link In] de l’autre appareil. Il est

possible de relier les connecteurs de Liaison-NAD en chaîne,

ENTREE vers SORTIE, et donc de commander tout un réseau

d’appareils à l’aide de la télécommande d’un seul d’entre eux.

20. SORTIES ALIMENTATION SECTEUR [AC]

(uniquement pour les versions de 120V de l’Amérique du Nord)

Il est possible de brancher les cordons d’alimentation secteur

d’autres appareils directement sur les prises d’alimentation

secteur commutées du T750.

Si un autre appareil stéréo est branché sur la prise alimentation

secteur COMMUTÉE, l’appareil sera uniquement alimenté en

courant si le T750 est mis sous tension.

Si un autre appareil stéréo est branché sur la prise alimentation

secteur NON COMMUTÉE, l’appareil sera automatiquement

alimenté en courant, peu importe que le T750 soit mis sous

tension ou hors tension.

NOTA: Les prises alimentation secteur devraient être utilisées

pour des appareils dont la consommation en courant COMBINEE

n’excède pas 120 Watts.

21. CORDON D’ALIMENTATION SECTEUR

Dès que vous avez effectué tous les branchements sur votre

amplificateur, brancher le cordon d’alimentation secteur dans

une prise secteur murale alimentée.

COMMANDES SUR LA FACE PARLANTE

FONCTIONS MARCHE/ARRET [POWER], HAUT-

PARLEURS [SPEAKERS] ET CASQUE

[HEADPHONES

1. MARCHE/ARRET [POWER]

Appuyer sur le bouton Marche-Arrêt [POWER] pour mettre le

récepteur en mode “Veille” [Stand-by]. Le voyant “Veille” [Stand-

By] (N° 2) s’allume au-dessus du bouton [POWER]. Sur la face

parlante, appuyer sur un des boutons de sélection pour mettre le

récepteur sous tension (N° 6). Sur la télécommande, appuyer sur

le bouton vert “Veille” [Stand-By] (situé juste au-dessus des

boutons de haut-parleurs) pour mettre l’appareil sous tension.

L’affichage s’allume et indique quelle entrée a été sélectionnée; le

voyant “Veille” [Stand-By] s’éteint.

Appuyer à nouveau sur le bouton-poussoir MARCHE-ARRET

[POWER] pour mettre l’appareil hors tension [OFF]. Le récepteur

NAD T750 utilise une mémoire auxiliaire pour stocker les

réglages de correction de la sonorisation enveloppante et les

informations des stations préréglées du module tuner. L’appareil

retient ces informations pendant plusieurs semaines; même dans

le cas où il est tout à fait mis hors tension ou débranché.

TELECOMMANDE

Bouton VEILLE [STAND-BY] (vert, n° 1 sur le diagramme de la

télécommande):

Appuyer sur ce bouton pour changer le mode “fonctionnement” de

l’appareil en mode “veille” et vice versa. Réappuyer sur ce bouton

pour mettre l’appareil sous tension à partir du mode “Veille”

[Stand-By]; l’affichage indique la dernière source sélectionnée.

NOTA: “Veille” [Stand-By] est indiqué par le voyant “Veille”

[Stand-By] (N° 2) qui se trouve juste au-dessus du bouton

“Marche-Arrêt [POWER] sur la face parlante (N° 1).

En mode “Veille” [Stand-By] le T750 ne consomme que très peu

de courant. Mais si l’appareil va rester inutilisé pendant plusieurs

jours, nous préconisons de le mettre hors tension. Pour mettre

l’appareil hors tension, appuyer sur le bouton “Marche-Arrêt”

[POWER] (N° 1) sur la face parlante; tous les voyants s’éteindront.

Appuyer sur ce bouton pour mettre l’appareil sous tension.

Réappuyer sur ce bouton pour mettre l’appareil hors tension.

2. VEILLE [STANDBY]

Ce voyant vert s’allume lorsque le récepteur est mis sur “Marche”

[ON], mais en mode “Veille” [Stand-By]. Pour obtenir plus

d’informations, voir la section 1 de ce chapitre.

Le voyant s’allume également lorsque le récepteur reçoit une

commande en provenance de la télécommande livrée.

3. PRISE CASQUE [HEADPHONE]

Une prise jack 1/4” est prévue pour permettre l’écoute sur

casque. Cette prise comporte son propre amplificateur, capable

de piloter tout type de casque conventionnel, quelle que soit son

impédance. Les commandes de volume sonore, de tonalité et de

balance agissent aussi sur l’écoute sur casque. Utiliser un

adaptateur approprié pour brancher des casques équipés d’un

autre type de connecteur, tel qu’un jack stéréophonique de 3,5

mm du type “baladeur stéréo”.

Appuyer sur le bouton de haut-parleurs (N° 4) pour mettre les

haut-parleurs hors tension et pour écouter par casque.

NOTA: L’écoute à des niveaux sonores élevés peut entraîner des

dommages auditifs permanents.

4. HAUT-PARLEURS

Le bouton “haut-parleurs” [SPEAKERS] sert à mettre les haut-

parleurs branchés sur les bornes de haut-parleurs avant

[FRONT], centre [CENTER] et enveloppant [SURROUND] sous

tension ou hors tension. Lorsque les haut-parleurs sont mis sous

tension, le voyant des haut-parleurs [SPEAKERS] s’allume.

Appuyer sur [SPEAKERS] pour éteindre tous les haut-parleurs

pour assurer l’écoute par casque (N° 3) sans que les haut-

parleurs émettent du son simultanément.

NOTA: Toujours diminuer le volume sonore lorsque l’on active ou

désactive les haut-parleurs.

SELECTEURS ENTREE [INPUT] ET

MONITEUR [MONITOR]

5. EXT. 5.1CH

Sélectionne, comme l’entrée active, le signal de sortie multivoie en

provenance d’un lecteur de vidéodisques numériques ou d’un

décodeur externe branchés sur l’entrée voie 5.1 [5.1 Ch.].

NOTAS: Dans ce mode, le bouton de mode de sonorisation

enveloppante (N° 16) n’agit pas.

Les sorties [Tape 1], [Tape 2] et [Video 4] ne fournissent aucun

signal audio lorsque l’entrée voie 5.1Ch [Ext. 5.1 Ch] a été

sélectionnée.

6. VIDEO 1 A VIDEO 4, MONITEUR

MAGNETOPHONE 1, MONITEUR

MAGNETOPHONE 2, FM, AM, AUX, CD

[VIDEO 1 TO VIDEO 4, TAPE 1, TAPE 2

MONITOR, FM, AM, AUX, CD]

Ces boutons permettent de sélectionner l’entrée active du T750

ainsi que le signal envoyé aux haut-parleurs et aux sorties

Moniteur Magnétophone, Vidéo 4 et TV.

Le nom de l’entrée et le Mode de Sonorisation Enveloppante

seront affichés sur le Panneau d’Affichage.

VIDEO 1 à VIDEO 3 Sélectionne le signal en provenance d’un

téléviseur stéréo, d’un décodeur satellite ou d’un disque

vidéolaser connecté à l’entrée VIDEO 1, 2 ou 3 comme entrée

active. Le Panneau d’Affichage indique Vidéo 1,2 ou 3, en fonction

de l’entrée vidéo sélectionnée.

VIDEO 4 VCR Sélectionne le magnétoscope connecté à l’entrée

VIDEO 4 comme entrée active. Video 4 est indiqué sur l’affichage

dès que la sélection a été faite.

MAGNETOPHONE 1 [TAPE 1] Sélectionne “Magnétophone 1”

[Tape 1] comme l’entrée active.

MONITEUR MAGNETOPHONE 2 [TAPE 2 MONITOR]

Sélectionne la sortie d’un magnétophone lors de la lecture de

cassettes et le suivi d’enregistrements faits au moyen des prises

[Tape 2]. Appuyer une fois sur le bouton [Tape 2] pour l’activer

et une deuxième fois pour rétablir la sélection d’entrée normale.

Tape 2 est une fonction de suivi magnétophone qui n’annule pas

la sélection d’entrée en cours. Par exemple, si le CD est l’entrée

active lorsque TAPE 2 est sélectionné, le signal CD continue d’être

sélectionné et est envoyé aussi bien aux bornes de sortie TAPE 1,

TAPE 2 et Video 4, mais c’est le son du magnétophone relié à TAPE

2 qui sera entendu sur les haut-parleurs. Lorsque le Moniteur

Tape 2 est sélectionné, “TAPE 2” apparaît pendant 3 secondes

dans la zone alphanumérique de l’affichage. Ensuite l’affichage

rétablit automatiquement l’entrée active. La case qui se trouve

juste au-dessus de la zone alphanumérique et affichant “T-2-

MONITOR” reste allumée jusqu’à ce que “Magnétophone 2”

[Tape 2] soit désactivé.

FM Sélectionne la radio FM. La bande FM est sélectionnée

automatiquement lorsque vous sélectionnez une Station Préréglée

sur la bande FM [FM Preset].

[AM] Sélectionne la radio AM. La bande AM est sélectionnée

automatiquement lorsque vous sélectionnez une Station Préréglée

sur la bande AM [AM Preset].

AUX Sélectionne l’appareil audio auxiliaire comme l’entrée active.

CD Sélectionne le lecteur de disques CD comme l’entrée active.

FONCTIONS VOLUME, BALANCE ET TONALITE

7. VOLUME

La commande de VOLUME sonore règle le volume global des

signaux envoyés aux haut-parleurs. Elle est motorisée et peut être

réglée par la télécommande au moyen du bouton Volume

Principal [Master Volume ou ]. La commande du

volume sonore n’affecte pas les enregistrements faits au moyen

des sorties [Tape] et [Video 4] mais affecte toutefois le signal

allant vers la sortie de préamplification (Audio Pre Out).

Sur la télécommande, appuyer sur le bouton [Mute] pour couper

provisoirement le son envoyé aux haut-parleurs et au casque.

L’affichage signale le mode “SILENCIEUX DE RECHERCHE” en

faisant clignoter “AUDIO MUTE” en rouge. Réappuyer sur

SILENCIEUX [MUTE] pour rétablir le son. La commande Mute

n’affecte pas les enregistrements faits au moyen des Sorties TAPE

et Video 4 mais agit toutefois sur le signal allant vers la sortie de

préamplification [Audio Pre Out].

8. COMMANDES DES GRAVES [BASS] ET

DES AIGUS [TREBLE]

Le T750 est équipé de commandes de GRAVES [BASS] ET d’AIGUS

[TREBLE], qui permettent de régler la tonalité globale de votre

chaîne.

La position médiane (12 heures) correspond à une courbe plate,

sans amplification ni atténuation; un léger déclic peut être ressenti

dans le mouvement du bouton à cet endroit. Tourner le bouton en

sens horaire pour amplifier les Graves ou les Aigus. Tourner le

bouton en sens anti-horaire pour atténuer les Graves ou les Aigus.

Ces commandes n’affectent que les haut-parleurs avant Gauche et

Droit. En mode Dolby Pro Logic, Dolby 3 Stéréo, mode Salle

[Hall] ou lorsque l’entrée voie [EXT. 5.1CH] est sélectionnée, les

haut-parleurs Central et de Sonorité Enveloppante maintiennent

une courbe “plate”, et le réglage de commande de tonalité n’a

aucun effet. Les commandes de tonalité n’affectent pas les

enregistrements faits au moyen des sorties ligne [Tape] ou

[Video] mais affectent toutefois le signal allant vers les sorties de

préamplification [Audio Pre Out].

9. TONALITE NEUTRE [TONE DEFEAT].

Le commutateur de tonalité neutre contourne les circuits de

commande de tonalité du T750. Si, en général, vous ne vous

servez pas des Commandes de Tonalité (N° 8) et vous les laissez

en position médiane (12 heures), il est conseillé d’éviter tout à

fait les circuits de réglage de tonalité à l’aide du bouton “Tonalité

Neutre” [TONE DEFEAT]. Lorsque le bouton n’est pas enfoncé, les

circuits de réglage de tonalité sont activés, et le fait d’appuyer sur

le bouton “Tonalité Neutre” [TONE DEFEAT] contourne les

circuits de réglage de tonalité.

10. EQUILIBRE [BALANCE]

La commande de BALANCE règle les niveaux relatifs des haut-parleurs

Avant Gauche et Droit. La position médiane (12 heures) assure un

niveau égal pour les voies Gauche et Droite. Un léger déclic peut être

ressenti dans le mouvement du bouton à cet endroit.

En tournant le bouton en sens horaire, on déporte l’équilibre

[balance] vers la droite. En tournant le bouton en sens anti-

horaire, on déporte l’équilibre [balance] vers la gauche. La

commande [BALANCE] n’affecte pas les enregistrements faits au

moyen des sorties ligne [Tape] ou [Video] mais affecte toutefois le

signal allant vers les sorties de préamplification (Audio Pre Out).

TUNER

11. ACCORDAGE/RECHERCHE ET

[TUNE/SEARCH]

La fonction de ces boutons dépend du mode d’accordage

sélectionné au moyen du bouton “Station Préréglée” [Preset]

(N° 12). Le bouton [Preset] bascule entre deux modes de

fonctionnement:

a) Mode “Station Préréglée” [Preset] (indiqué sur l’affichage):

Appuyer sur le bouton pour défiler jusqu’à une Station

Préréglée à numéro inférieur; appuyer sur le bouton

pour faire le défilement jusqu’à une Station Préréglée ayant un

numéro plus élevé. Il s’agit d’une fonction “saut à la ligne”,

c’est-à-dire que lorsque vous appuyez sur , le tuner passe

du numéro de Station Préréglée le plus élevé au numéro de

Station Préréglée le plus bas.

b) Mode “Accordage” [Tune]: Appuyer sur ou

pendant plus d’une demi-seconde afin d’activer l’accordage

automatique, soit ascendant ou descendant la bande de

fréquence.. Le tuner recherche automatiquement la première

station dont le signal est suffisamment puissant et il s’arrête là.

Réappuyer sur le bouton “Accordage/Recherche”

[Tune/Search] pendant une demi-seconde pour recommencer

la recherche.

NOTA: L’accordage automatique est uniquement disponible pour

la bande FM.

Une impulsion légère sur ou vous permet d’activer

l’accordage manuel, soit ascendant ou descendant la bande de

fréquence afin de pouvoir accorder une certaine fréquence de

façon très précise. Chaque impulsion successive sur les touches

oblige le tuner à faire des pas de 0.05 ou 0.1 MHz (tout selon la

version) sur la bande FM afin que vous puissiez vous accorder sur

une certaine fréquence de manière précise. Sur la bande AM, les

pas d’accordage peuvent être de 9 kHz ou de 10 kHz, tout selon

la version de votre T750. Ce mode d’accordage est également utile

lorsque l’on tâche de capter une station dont le signal est trop

faible pour le mode de “Recherche” [Search]. Lorsque la station

est accordée de façon précise, “Accordée” [

TUNED

]

s’allume sur l’affichage.

Pour les stations émettant des informations RDS, l’affichage

indique son nom RDS, le service programme [Program Service]

(PS; normalement le sigle de la station, comme par ex. BBC R3).

Veuillez lire également le chapitre “Mise en mémoire de stations

AM et FM” pour obtenir plus d’informations.

NOTA: Les versions de 120V (Amérique du Nord) n’offrent pas la

facilité RDS [Radio Data System] “Système d’informations radio”.

12. PREREGLEE [PRESET]

Le bouton [Preset] bascule entre le mode “Station Préréglée

[Preset] et “Accordage” [Tune]. Dès que le mode “Station

Préréglée” [Preset] est sélectionné, [PRESET] s’allume sur

l’affichage.

Vous pouvez stocker jusqu’à 30 stations préréglées, soit de bande

AM, soit de bande FM, dans trois banques [blocs de mémoire].

Chaque banque de stations préréglées peut mémoriser jusqu’à 10

stations. Le numéro de la station préréglée est indiqué sur le

Panneau d’Affichage.

Veuillez lire aussi la section 11 et le chapitre “Mise en mémoire

de stations AM et FM” pour obtenir plus d’informations.

13. BANQUE [BANK]

En appuyant sur “banque” [BANK] l’on peut changer entre les

trois Banques (blocs de mémoire) de Stations Préréglées du T750

(A, B ou C). Chacune de ces banques peut mémoriser jusqu’à 10

stations préréglées et chacune peut contenir un mélange de

stations AM ou FM. La Banque choisie est indiquée sur l’Affichage.

Vous pouvez utiliser ces banques [banks] pour trier vos Stations

Préréglées, par ex. par type de station (Bloc A pour musique

rock/pop; Bloc B pour la musique classique; bloc C pour le jazz).

Veuillez lire également le chapitre “Mise en mémoire de stations

AM et FM” pour obtenir plus d’informations.

La télécommande a aussi un bouton “banque” [BANK] pour

effectuer cette fonction.

14. MEMOIRE [MEMORY]

Le bouton [Memory] sert à stocker les stations dans les trois

Banques de Stations Préréglées [blocs de mémoire]. Il s’utilise

avec les boutons “Accordage/Recherche” [Tune/Search] (N° 11).

Lorsque “Mémoire” [Memory] est activée, le numéro de la Station

Préréglée clignote et le voyant rouge [MEMORY] est visible sur

l’affichage.

Veuillez lire également le chapitre “Mise en mémoire de stations

AM et FM” pour obtenir plus d’informations.

15. SILENCIEUX DE RECHERCHE FM/MODE

FM [FM MUTE/MODE]

Ce bouton combine deux fonctions; il met le tuner de Stéréo en

Mono et désactive en même temps les circuits du silencieux de

recherche, “muet”. Le circuit du silencieux de recherche rend le

tuner silencieux entre les stations radio lors de la recherche ou de

l’accordage. Ceci permet d’éviter le bruit d’accordage.

Des signaux radio très faibles peuvent toutefois être supprimés

par le circuit du silencieux de recherche. Si une station très faible

est en mode stéréophonique, il y aura beaucoup de sifflements. Le

fait de changer en mode Mono et de désactiver le circuit du

silencieux de recherche en appuyant sur le bouton “Silencieux

FM/Mode FM” [FM MUTE/MODE] vous permet d’entendre la

station et d’annuler tout ou la plupart du bruit de fond.

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