NAD Comprehensive Troubleshooting Guide for Stereo Receiver
Page 30

TROUBLESHOOTING

CONDITION

 

POSSIBLE CAUSE(S)

 

POSSIBLE SOLUTIONS(S)

 

 

 

 

 

NO SOUND FROM ALL CHANNELS

•

AC power unplugged

•

Check AC cable, connection, and outlet

 

• Power not switched on

 

 

 

•

Outlet is unpowered

 

 

 

 

 

 

 

NO SOUND FROM SOME CHANNELS

•

Faulty/missing cables

•

Check cables

 

• <Speaker Settings> channel (s) set to "None"

• Check <Speaker Settings> menu

 

• Power-amp or speaker-connections faulty

•

Check power amp, cabling, and speakers

 

 

 

 

NO SOUND FROM SURROUND

•

No surround listening mode is engaged

• Select appropriate listening mode

CHANNELS

•

Surround-channels set to "None" on

• Correct <Speakers Settings> or

 

 

<Speaker Settings> menu

 

<Channel Levels> settings

 

• Surround-channels level set too low on

 

 

 

 

<Channel Levels> menu

 

 

NO SOUND FROM SUBWOOFER

•

Subwoofer is off, unpowered,

 

 

or improperly connected

 

• Subwoofer set to "OFF" on

 

 

<Speaker Settings> menu

 

•

Sub level set too low on

 

 

<Channel Levels> menu

•Power-up subwoofer, check sub's AC outlet, or check connections

•Correct <Speakers Settings> or <Levels setup> settings

NO SOUND FROM CENTER CHANNEL

•

Source is a 2/0 (etc.) Dolby Digital or

 

 

DTS recording without center channel;

 

• Center set to "OFF" on

 

 

<Speaker Settings> menu

 

•

Center level set too low on

 

 

<Channel Levels> menu

•Play a known 5.1-channel recording or select Dolby Pro Logic or Mono mode

•Correct <Speakers Settings> or <Channel Levels> settings

NO DOLBY DIGITAL/DTS

• Source's digital output is not connected to

•

Check connections

 

 

a T 744 digital input

• Check source component setup

 

 

 

 

 

T 744 DOES NOT RESPOND

•

Batteries are flat or incorrectly inserted

•

Check batteries

TO HTR 2 REMOTE

• IR transmitter window on remote, or

•

Check IR windows and ensure clear

 

 

IR receiver window on T 744 is obstructed

 

line-of-sight from remote to T 744

 

• T 744 front panel is in very bright sunlight

•

Reduce sunlight/room lighting

 

 

or ambient light

 

 

 

 

 

 

T 744 DOES NOT RESPOND

•

Microprocessor error

• Power-down the T 744 via the front-panel

TO FRONT-PANEL COMMANDS

•

T 744 may have over heated

 

Power button and unplug it from the AC

OR REMOTE CONTROL

 

 

 

outlet

 

 

 

• Wait five minutes, re-connect and

 

 

 

 

power up

 

• 12V TRIGGER IN/OUT is set to AUTO or

• Switch to OFF position

 

 

in position

 

 

 

 

 

 

 

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Contents English Precautions Safety InformationExplanation of Graphical Symbols InstallationDamage Requiring Service Electric PowerMaintenance Do not Attempt to Service the Unit Yourself OWNER’S RecordTable of Contents Troubleshooting Specifications Getting the Most from the NAD TWHAT’S in the BOX Unpacking and SetupConnecting AM Antenna Choosing a LocationEase of USE About the TR.S. and Digital Surround IntegrationAbout the HTR 2 System Remote Control UpgradabilityQuickstart Play a DVD MovieFront Panel SearchDigital Input Jack Default Assignment Rear Panel +12V Trigger IN/OUTRear Panel Setting UP the T Getting StartedDealing with HUM and Noise About the ON-SCREEN Displays OSD and FRONT-PANEL Readout Input SetupInput Settings Display the OSDListening Mode Speaker SetupSpeaker Settings Front L/R CenterSetting Channel Balance CHANNEL-BALANCE Test SetupUsing AN SPL Meter Setting Speaker DistanceCreating and Using Presets Creating PresetsRecalling Presets Using the T Selecting Radio Presets Tuning StationsSetting Radio Presets Choosing the FM Mute / ModeDolby PRO Logic II Surround Dolby DigitalDolby PRO Logic Dolby PRO Logic II MovieAbout the T 744S Listening Modes EarsDisplaying the Signal Mode Selecting Listening ModesDTS Adjusting Listening Modes To Adjust Channel Levels Surround Sound Channel ChartAdjusting Channel Levels on the FLY Adjusting the Tone ControlsControlling the T Using the HTR 2 Remote ControlSpecifications Learning Codes from Other RemotesPUNCH-THROUGH Copy a Command from Another KEYMacro Commands Recording MacrosDelete Mode KEY-ILLUMINATION TimeoutFactory Reset Loading CODE-LIBRARIESTrigger Setup Summary of HTR 2 ModesAssigning the Trigger Output Troubleshooting Condition Possible Causes Possible SolutionssAV Surround Sound Receiver T SpecificationsPhysical Specifications Amplifier SectionNAD

T744 specifications

The NAD T744 is a versatile AV receiver that stands out for its powerful performance and user-friendly features. Designed for both home theater enthusiasts and casual listeners, the T744 delivers high-quality audio and video transmission, making it a compelling addition to any multimedia setup.

One of the T744’s main features is its robust audio processing capabilities. It supports a variety of surround sound formats, including Dolby Digital and DTS, allowing for immersive audio experiences. With its 7.1 channel amplification, this receiver can drive multiple speakers, creating a dynamic soundstage that enhances movie nights, music listening, and gaming sessions alike.

The T744 integrates several advanced technologies that contribute to its impressive performance. One notable technology is NAD's proprietary PowerDrive, which ensures the receiver can deliver high output power with low distortion, resulting in clear, controlled audio even at high volumes. This feature is particularly beneficial for those who enjoy watching action-packed movies or listening to high-energy music.

Another significant characteristic of the NAD T744 is its intuitive user interface. The receiver is equipped with a user-friendly remote control and an on-screen display that simplifies setup and operation. Users can easily navigate through various inputs and settings, allowing for seamless transitions between different media sources. The T744 also includes multiple HDMI inputs, making it compatible with modern devices such as Blu-ray players, gaming consoles, and streaming devices.

In addition to its audio and video capabilities, the T744 also supports multi-room audio functionality. This means users can connect additional amplifiers or speakers throughout their home, allowing for synchronized playback in different areas. This feature is perfect for those who want to enjoy their favorite music throughout their home without needing to switch systems.

Overall, the NAD T744 combines high-performance audio technology with practical features, making it an excellent choice for anyone looking to enhance their home entertainment experience. Its combination of power, flexibility, and ease of use ensures that it caters to a wide range of audio-visual needs, making it a standout option in the AV receiver market.
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