REFERENCE
TROUBLESHOOTING
CONDITION
POSSIBLE CAUSES
POSSIBLE SOLUTIONS
No sound from all channels.
AC power unplugged.
•
Check AC cable connection and outlet
•
Power not switched on.
•
Outlet has no power.
•
Speaker A (or Speaker B) is not activated.
•
Activate Speaker A (or Speaker B) by pressing
the corresponding front panel.
•
No sound from some channels.
Faulty/missing cables.
•
Check cables.
•
“Speaker Configuration” channel (s) set to “OFF”.
•
Check “Speaker Configuration” menu.
•
Power-amp or speaker-connections faulty.
•
Check power amp, cabling, and speakers.
•
No sound from surround
channels.
No surround listening mode is engaged.
•
Select appropriate listening mode.
•
Surround-channels set to “OFF” on “Speaker Configuration”
menu.
•
Correct “Speaker Configuration” or “Speaker
Levels” settings.
•
Surround-channels level set too low on “Speaker Levels”
menu.
•
No sound from Subwoofer.
Subwoofer is off, not powered or improperly connected.
•
Power-up subwoofer, check Sub’s AC outlet
or check connections.
•
Subwoofer set to “OFF” on “Speaker Configuration” menu.
•
Correct “Speaker Configuration” or “Speaker
Levels” settings.
•
Sub level set too low on “Speaker Levels” menu.
•
No sound from Center channel.
Source is a 2/0 (etc.).
•
Play a known 5.1-channel recording or select
Dolby Pro Logic IIx Music mode.
•
Dolby Digital or DTS recording without center channel;
Center set to “OFF” on “Speaker Configuration” menu.
•
Correct “Speaker Configuration” or “Speaker
Levels” settings.
•
Center level set too low on “Speaker Levels” menu.
•
No Dolby Digital/ DTS.
Source’s digital output is not connected to a T 755 digital
input.
•
Check connections.
•
Source component not configured for multichannel digital
output.
•
Check source component setup.
•
T 755 does not respond to
HTR remote.
Batteries are flat or incorrectly inserted.
•
Check batteries.
•
IR transmitter window on remote or IR Receiver window on
T 755 is obstructed.
•
Check IR windows and ensure clear line-of-
sight from remote to T 755.
•
T 755 front panel is in very bright sunlight or ambient light.
•
Reduce sunlight/room lighting.
•
T 755 does not respond to
front panel commands or
remote control.
Microprocessor error.
•
Power-down the T 755 via the rear panel
Power switch and unplug it from the AC
outlet.
•
T 755 may have over heated.
•
Wait five minutes, re-connect and power up.
•
12V TRIGGER IN/OUT is set to AUTO position.
•
Switch to 12V TRIGGER IN/OUT OFF position.
•
NOTES
• Factory defaults for North American (AH) version : Press simultaneously [Source ]+ [Front Input/MP]
• Factory defaults for European (C) version: Press simultaneously [ Source ]+[ Front Input/MP]
• Audyssey Setup settings along with other stored presets and settings will all be deleted upon restoring your T 755 to its factory defaults.
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