Nad T 743 User Manual download pdf (Page 30)

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TROUBLESHOOTING

CONDITIONCONDITION

CONDITIONCONDITION

CONDITION

NO SOUND FROM ALL CHANNELS

NO SOUND FROM SOME CHANNELS

NO SOUND FROM SURROUND

CHANNELS

NO SOUND FROM SUBWOOFER

NO SOUND FROM CENTER CHANNEL

NO DOLBY DIGITAL/DTS

T 743 DOES NOT RESPOND

TO HTR 2 REMOTE

T 743 DOES NOT RESPOND

TO FRONT-PANEL COMMANDS

OR REMOTE CONTROL

POSSIBLE CAUSE(S)POSSIBLE CAUSE(S)

POSSIBLE CAUSE(S)POSSIBLE CAUSE(S)

POSSIBLE CAUSE(S)

• AC power unplugged

• Power not switched on

• Outlet is unpowered

• Faulty/missing cables

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

• Power-amp or speaker-connections faulty

• No surround listening mode is engaged

• Surround-channels set to "None" on

<Speaker Settings> menu

• Surround-channels level set too low on

<Channel Levels> menu

• Subwoofer is off, unpowered,

or improperly connected

• Subwoofer set to "OFF" on

<Speaker Settings> menu

• Sub level set too low on

<Channel Levels> menu

• 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

• Source's digital output is not connected to

a T 743 digital input

• Batteries are flat or incorrectly inserted

• IR transmitter window on remote, or

IR receiver window on T 743 is obstructed

• T 743 front panel is in very bright sunlight

or ambient light

• Microprocessor error

• T 743 may have over heated

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

in position

POSSIBLE SOLUTIONS(S)POSSIBLE SOLUTIONS(S)

POSSIBLE SOLUTIONS(S)POSSIBLE SOLUTIONS(S)

POSSIBLE SOLUTIONS(S)

• Check AC cable, connection, and outlet

• Check cables

• Check <Speaker Settings> menu

• Check power amp, cabling, and speakers

• Select appropriate listening mode

• Correct <Speakers Settings> or

<Channel Levels> settings

• Power-up subwoofer, check sub's

AC outlet, or check connections

• Correct <Speakers Settings> or

<Levels setup> settings

• Play a known 5.1-channel recording or

select Dolby Pro Logic or Mono mode

• Correct <Speakers Settings> or

<Channel Levels> settings

• Check connections

• Check source component setup

• Check batteries

• Check IR windows and ensure clear

line-of-sight from remote to T 743

• Reduce sunlight/room lighting

• Power-down the T 743 via the front-panel

Power button

and unplug it from the AC

outlet

• Wait five minutes, re-connect and

power up

• Switch to OFF position

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Comments to this Manuals

Amatsaleh 31 Mar 2024 | 15:22:01

Need to relconfig