NAD T744 Скачать руководство пользователя страница 10

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1

STANDBY SWITCH

: Pressing this key, or the HTR 2 remote’s [ON] button, will switch the receiver on, making it operational, changing the amber

Standby indicator to green and illuminating the VFL display.

2

STANDBY LED

: Illuminates amber when the T 744 is in Standby mode; green when it is powered on; and flashes momentarily to indicate infrared

commands received from the HTR 2 remote.  Protection Mode is indicated by a red illumination, and indicates that there is a problem with your set-
up or the unit itself.  When the fault is removed, normal operation can be resumed (this may require turning the unit off and on again).  This indicator
will be steadily dark only when the main 

POWER

 switch (REAR PANEL No.10) is switched off (or the receiver is unplugged from the AC supply).

3

AM/FM

: Press to toggle between the tuner’s AM and FM bands.

4

DISPLAY

: Press to display the channel mode of the currently selected source (other than the internal AM/FM tuner), in the format “front/rear/LFE.”

For example, a Dolby Digital or DTS 5.1-channel source will display 3/2.1. Note that the display shows signal channels, not speakers; for example,
a 2-channel analog or digital source (whether stereo or surround-encoded) will show 2/0.0, even though the receiver’s <Speaker Settings> may
indeed be set up to use the subwoofer with all sources, and the current Listening Mode may employ center and surround speakers.

When the AM/FM tuner is the selected input, sequentially pressing DISPLAY shows the currently tuned station’s RDS data, toggling between the
current station’s Radio Text and Station Name displays (see Listening to Radio, below).

5

MEMORY

: Use to store tuned stations to the T 744’s 40 preset-memory locations. (see Listening to Radio, below)

6

FM MUTE/MODE

: In the normal Mute position, only the stations with a strong signal can be listened to, and the noise between stations is muted.

Pressing the [FM Mute/Mode] button allows distant (and potentially noisy) stations to be received.  (See “Listening to Radio”)

7

PRESET

: Press to step up or down between radio presets; 30 FM and 10 AM station presets are available. Note that this function “wraps”:

Pressing

will step from Preset 30 to Preset 1, or vice versa using the

key.  “Unused” presets are skipped over. (Note that Presets must previously

have been stored; see “Listening to Radio,” below.)

8

SEARCH

: Press momentarily to step up or down between FM or AM frequencies. Press and hold SEARCH

for more than 2 seconds to

search up or down; the T 744’s tuner will stop at the next sufficiently strong signal it encounters. Note that this function, too, “wraps,” and will
continue searching up or down from one end of the AM or FM band to the other.

Note that: SEARCH

tunes the FM band by 0.05 MHz steps (twice the precision of most tuners and receivers). On the AM band, SEARCH

moves by 10 kHz or 9 kHz steps. To change the step amount, hold in the FM MUTE/MODE and AM/FM keys simultaneously.

9

VFL DISPLAY

: The Vacuum Fluorescent Display provides visual information on all of the T 744’s important modes, settings, and functions for both

MAIN and second ZONE locations.

10 VOLUME (SETUP)

: Turn clockwise to increase the master-volume setting; counterclockwise to lower it. The VFL and on-screen displays show the

setting, displayed in decibels between –74 and +18.

The 

VOLUME (SETUP)

 knob is also used to increment/decrement individual channel levels and other adjustable parameters.

FRONT PANEL

Содержание T744

Страница 1: ...Owner s Manual ENGLISH ...

Страница 2: ...from each side Do not place on a bed rug or similar surface that may block the ventilation openings Do not install the unit in a bookcase cabinet or airtight rack where ventilation may be impeded 5 Objects and liquid entry Take care that objects or liquids do not get inside the unit through the ventilation openings 6 Carts and stands When placed or mounted on a stand or cart the unit should be mov...

Страница 3: ... the blades of the plug 5 When not in use Unplug the AC power cord from the AC outlet if the unit will not be used for several months or more When the cord is plugged in a small amount of current continues to flow to the unit even when the power is turned off CAUTION CAUTION CAUTION CAUTION CAUTION Modifications or adjustments to this product which are not expressly approved by the manufacturer ma...

Страница 4: ...T YS OSD AND FRONT YS OSD AND FRONT YS OSD AND FRONT YS OSD AND FRONT PANEL READOUT PANEL READOUT PANEL READOUT PANEL READOUT PANEL READOUT 15 15 15 15 15 Displaying the OSD 15 Navigating the OSD and Making Changes 15 Input Setup 15 Input Settings 15 Speaker Setup 16 Speaker Settings 16 Listening Mode 16 Channel Balance Test Setup 17 Using an SPL Meter 17 Setting Channel Balance 17 Speaker Distanc...

Страница 5: ...nd home theater and audiophile quality music listening for years to come We encourage you to take a few minutes now to read right through this manual Investing a little time here at the outset might save you a good deal of time later and is by far the best way to ensure that you make the most of your investment in the NAD T 744 and get the most from this powerful and flexible home theater componen...

Страница 6: ... ensure reliable infrared remote control communications The T 744 generates a modest amount of heat but nothing that should trouble adjacent components It is perfectly possible to stack the T 744 atop other components but the reverse usually should be avoided Nonetheless it is generally preferable that the T 744 stand alone It is especially important that sufficient ventilation be provided if you ...

Страница 7: ...ble for serious music listening Dolby ProLogic II Music and DTS Neo 6 Music modes can also create enjoyable experience from 2 channel sources On the digital side the T 744 combines extraordinarily high speed DSP processing employing one of the most advanced high speed DSP engines available with fully 24 bit 96 kHz sampling capable D A converters for all channels A single high precision master cloc...

Страница 8: ...designed to be easy to use and easy to understand Be sure to read the section Using the HTR 2 Remote Control to familiarize yourself with the remote s layout and operations before proceeding to setup your A V receiver Chances are you will want to use your HTR 2 as your primary way to command your entire A V system The HTR 2 can be employed to operate additional NAD or other brand components such a...

Страница 9: ... well if you like If your system includes a powered subwoofer connect the T 744 s AUDIO PRE OUT SW1 2 or both jacks to its line inputs Press in the main power switch black pushbutton on the T 744 s rear panel this puts the T 744 into STANDBY mode and illuminates an amber LED to indicate it is ready to receive remote commands then use the HTR 2 s ON key to power up the receiver Be sure the TV monit...

Страница 10: ...e Listening to Radio below 5 MEMORY Use to store tuned stations to the T 744 s 40 preset memory locations see Listening to Radio below 6 FM MUTE MODE In the normal Mute position only the stations with a strong signal can be listened to and the noise between stations is muted Pressing the FM Mute Mode button allows distant and potentially noisy stations to be received See Listening to Radio 7 PRESE...

Страница 11: ... via the on screen menus see Adjusting Channel Levels below NOTE The HTR 2 remote s Surr Center and Sub keys provide direct access to those channels relative levels however in this case the level changes are only temporary and are not saved in memory 14 TONE DEFEAT Press to disable the tone controls press again to re enable them for instance to compare a tone setting to unmodified sound NOTE While...

Страница 12: ... signals so that S Video signals connected to the DVD SAT VCR and VIDEO 4 6 inputs will be present at both the S Video and composite MONITOR OUT jacks when any of these inputs is selected This provides the convenience of requiring only a single video connection usually S Video between the T 744 and the TV monitor 3 CD Connect the analog stereo audio output from a CD player or other line level audi...

Страница 13: ...hin the receiver s operating range Please check front center and surround speakers are rated to be 4Ω min per speaker IMPORTANT NOTE For optimum surround performance the T 744 speaker settings and levels must be set correctly via the receiver s setup routines see Setting Up the T 744 13 DVD SAT VCR VIDEO 4 VIDEO 5 These comprise the T 744 s principal inputs Connect S Video composite video and anal...

Страница 14: ... Do not bundle analog audio cables with AC power cables or with coaxial digital audio cables It is best if they cross at right angles if they must be in close proximity Employ high quality well shielded audio cable throughout and ensure that all connections are secure A pencil eraser can be used to burnish copper and gold plated contacts to ensure good low resistance contact specialized contact cl...

Страница 15: ...PUT SETTINGS From the main Setup menu select the Input settings menu item using the HTR 2 remote s and Enter keys Using the keys select the video input DVD SAT VCR VIDEO 1 6 you wish to configure Use the keys to move to the Audio In line and then use the keys to select the analog audio input you wish to be linked to that input usually this will be the same i e DVD with DVD Video 4 with Video 4 and...

Страница 16: ...the current Listening Mode For more information see About the T 744 s Listening Modes NOTE Listening Mode is part of the T 744 s Preset system See Creating and Using Presets below NOTE The Listening Mode used the last time a given input was selected will be recalled the next time that input is selected unless overridden by a Dolby Digital or DTS signal which automatically invoke their native Liste...

Страница 17: ...ith the left front The level offset reading on the right will change by 1 dB increments 12 dB adjustment is available NOTE If you are balancing levels by ear choose one speaker usually the center as a reference and adjust each of the others in turn to sound as loud as the reference Be sure that you remain in the primary listening position while balancing all channels Using the remote s and keys ad...

Страница 18: ...l settings accessible from the main Setup menu including Tone Control settings To save a collection of settings to a Preset use the HTR 2 remote s keys to scroll to the to main Save to Preset item Use to scroll to the desired Preset s line 1 5 Stored will be flashing Now press the HTR 2 s Enter to store the Preset Stored will be stop flashing confirming that the Preset has been stored NOTE The sel...

Страница 19: ...rom another If muting has been activated below adjusting master volume via the HTR 2 remote or the front panel knob automatically releases the mute function The T 744 will power up from Standby mode at whatever master volume setting was last used however if the prior setting was greater than 20 dB the T 744 will power up to 20 dB This prevents inadvertently beginning a session at excessive volume ...

Страница 20: ...o reception assuming that a multiplex stereo station of sufficient strength is tuned FM Mute eliminates noise from empty FM frequencies but also mutes very weak or distant stations it also causes the search function to skip them Toggling off the FM Mute will result in reduced noise if the FM station signal level is less than the FM Stereo threshold since mono FM is inherently less noise prone thou...

Страница 21: ...urround DOLBY PRO LOGIC DOLBY PRO LOGIC DOLBY PRO LOGIC DOLBY PRO LOGIC DOLBY PRO LOGIC Dolby Pro Logic is a surround format consisting of four channels front right centre front left and surround Media sources with the Dolby Surround feature produce a theatre like surround sound The surround channel is monophonic but it is reproduced in both surround speakers DOLBY PRO LOGIC II SURROUND DOLBY PRO ...

Страница 22: ...t is more similar to Dolby Digital decoding The T 744 provides two PLII variations MOVIE and MUSIC See Adjusting Listening Modes below EARS Two channel recordings whether stereo or surround encoded are reproduced with proprietary NAD surround processing with signals output to the left center and right front channels and discrete left right surround channels plus subwoofer assuming these are presen...

Страница 23: ...nalog input 2 channel whether the actual signal is monaural stereo or surround encoded and digital multichannel Dolby Digital or DTS Where a listening mode is not available to a given signal source it will not appear in the Listening Mode selection rotation 2 ch analog or PCM Multi ch DD DTS Stereo Downmix EARS Dolby Digital or DTS Dolby Pro Logic II Enhanced Stereo I Enhanced Stereo I Enhanced St...

Страница 24: ...r film soundtracks PLII MUSIC for music recordings DIMENSION 3 to 3 Adjusts front rear emphasis of the surround effect independently from the relative channel levels CENTER WIDTH 0 to 7 Modifies the hard centeredness of the center image by gradually mixing mono center content to the front left right speakers as well a setting of 0 retains the center channel only default while a setting of 7 yields...

Страница 25: ... 2 are retained even if you cycle the receiver through Standby Channel Levels are part of the T 744 s Preset system See Creating and Using Presets Level settings are added subtracted to the setup levels established by the T 744 level calibration routine invoked by the HTR 2 Test key However selecting any Preset will revert channel levels to those stored in the preset ADJUSTING THE TONE CONTROLS AD...

Страница 26: ...2 However the HTR 2 is already preprogrammed to operate the T 744 All of the function keys on the AMP Device Selector page perform T 744 functions The HTR 2 can also command many other NAD compo nents from its DVD CD TUNER and TAPE pages It is important to note that certain HTR 2 keys perform different functions depending on the selected Device Selector page The color of the Device Selector key la...

Страница 27: ...ess You might use a macro to automate a simple command sequence such as Turn on the DVD player and then press play Or you might compose an elaborate macro to power up an entire system select a source choose a Listening Mode and begin playback again all from a single keypress The HTR 2 can store one macro on each of its function keys these exclude the Device Selector keys NOTE Macros are independen...

Страница 28: ...e deleted so you need not worry that using Delete Mode might cause irreparable changes To enter Delete Mode simultaneously press and hold for 3 seconds both the desired key s Device Selector key and the RTN key until the Learn LED turns green Press the function key whose command you wish to delete the Learn LED flashes the number of times indicates which type of function has become active see the ...

Страница 29: ...nt s Device Selector key and the A V PRESET key until the Learn LED turns green Press the DISP key the HTR 2 indicates the current code library by flashing its TAPE VCR and MACRO keys For example to indicate code library 501 the HTR 2 will flash TAPE 5 times pause and then flash MACRO once You might wish to make a note of your components code library numbers SUMMARY OF HTR 2 MODES SUMMARY OF HTR 2...

Страница 30: ... on Channel Levels menu Source s digital output is not connected to a T 744 digital input Batteries are flat or incorrectly inserted IR transmitter window on remote or IR receiver window on T 744 is obstructed T 744 front panel is in very bright sunlight or ambient light Microprocessor error T 744 may have over heated 12V TRIGGER IN OUT is set to AUTO or in position POSSIBLE SOLUTIONS S POSSIBLE S...

Страница 31: ...Signal noise ratio ref rated power 8 ohms A WTD 96dB Signal noise ratio ref 1W 8 ohms A WTD 80dB Remote Control HTR 2 Tuner Section Input sensitivity Mono 16 1dBf 50dB Stereo 36 1dBf Harmonic Distortion FM Mono 0 25 Harmonic Distortion FM Stereo 0 5 Signal noise Mono 60dB Signal noise Stereo 66dB Stereo separation at 1kHz 40dB Frequency Response 1 5dB 30Hz 15kHz Physical Specifications Dimensions ...

Страница 32: ...nics com 2006 NAD Electronics International A Division of Lenbrook Industries LTD All rights reserved No part of this publication may be reproduced stored or transmitted in any form without the written permission of NAD Electronics International A Division of Lenbrook Industries LTD T 744 Manual GB 07 06 China ...

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