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 743 digital input

• Check source component setup

 

 

 

 

 

T 743 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 743 is obstructed

 

line-of-sight from remote to T 743

 

• T 743 front panel is in very bright sunlight

Reduce sunlight/room lighting

 

 

or ambient light

 

 

 

 

 

 

T 743 DOES NOT RESPOND

Microprocessor error

Power-down the T 743 via the front-panel

TO FRONT-PANEL COMMANDS

T 743 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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NAD T 743 owner manual Troubleshooting, Condition Possible Causes Possible Solutionss

T 743 specifications

The NAD T 743 is an esteemed model in the realm of home theater receivers, reflecting the brand's commitment to delivering high-quality audio performance and versatile features designed to enhance the home entertainment experience. This receiver is particularly noted for its ability to bridge the gap between two-channel audio and multi-channel surround sound, making it an attractive option for audiophiles and movie enthusiasts alike.

At the heart of the NAD T 743 is its powerful amplifier section, which is capable of delivering robust sound with clarity and precision. The receiver boasts a total output of 80 watts per channel into 8 ohms, allowing it to easily drive a range of speaker configurations while maintaining a dynamic and engaging sound. The use of NAD's proprietary PowerDrive technology ensures that the receiver can deliver high peak power without sacrificing performance or dynamic range, which is vital for both music and film playback.

One standout feature of the T 743 is its support for various audio formats, including Dolby Digital and DTS, enabling users to immerse themselves in a lifelike surround sound experience. This receiver also facilitates easy integration with other audio and video components, thanks to its multiple inputs and outputs, including optical and coaxial digital inputs, component video inputs, and a range of analog connections. Additionally, the T 743 features a robust built-in AM/FM tuner, providing access to a wide variety of radio stations.

NAD’s engineering excellence is evident in the T 743's user-friendly interface, which includes an intuitive remote control and on-screen display. This makes it accessible for users of all experience levels to navigate through settings and customize their audio experience. Furthermore, the receiver incorporates a discrete circuit design, which helps reduce noise and enhances sonic purity.

Among its technological innovations, the NAD T 743 utilizes advanced digital signal processing, allowing for the fine-tuning of audio parameters and the creation of customized listening profiles. This flexibility is complemented by its ability to decode high-resolution audio formats, ensuring that music lovers can enjoy the full benefits of their digital collections.

In summary, the NAD T 743 is a versatile and powerful home theater receiver that excels in delivering an immersive audio experience. Its combination of robust amplification, support for various audio formats, and user-friendly design makes it an attractive choice for anyone looking to elevate their home entertainment system. With NAD's longstanding reputation for quality and performance, the T 743 stands as a solid candidate for modern audio and video setups.