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Luxman LR-7500 Manual

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Unit does not function when
Main Power Switch is
pushed
Display lights, but no sound
or picture
Unit turns on, but front-panel
display does not light up
No sound from any speaker;
light around power switch is
red
No sound from surround or
center speakers
Unit does not respond to
remote commands
Intermittent buzzing in tuner
Letters flash in the channel
indicator display and digital
audio stops
• No AC power
• Intermittent input connections
• Mute is on
• Volume control is down
• Display brightness is turned off
• Amplifier is in protection mode due
to possible short
• Amplifier is in protection mode due
to internal problems
• Incorrect surround mode
• Input is monaural
• Incorrect configuration
• Stereo or Mono program material
• Weak batteries in remote
• Wrong device selected
• Remote sensor is obscured
• Local interference
• Digital audio feed paused
• Make certain AC power cord is plugged into a
live outlet.
• Check to see whether outlet is switch-con-
trolled.
• Make certain that all input and speaker con-
nections are secure.
• Press Mute Button.
• Turn up volume control.
• Follow the instructions in the Display Mode (27
page) so that the display is set to FULL.
• Check speaker wire connections for shorts at
receiver and speaker ends.
• Contact your local LUXMAN service center.
• Select a mode other than Stereo.
• There is no surround information from mono
sources.
• Check speaker mode configuration.
• The surround decoder may not create center-
or rear-channel information from nonencoded
programs.
• Change remote batteries.
• Press the FUNCTION buttons.
• Make certain front-panel sensor is visible to
remote, or connect remote sensor.
• Move unit or antenna away from computers,
fluorescent lights, motors or other electrical
appliances.
• Resume play for DVD.
• Check that Digital Input is selected.
SYMPTOM CAUSE SOLUTION
Troubleshooting
… 34


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