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TROUBLESHOOTING GUIDE
SYMPTOM CAUSE SOLUTION
Unit does not function when Main • No AC Power • Make certain AC power cord is plugged into
Power Switch is pushed a live outlet
• Check to see whether outlet is switch-
controlled
Display lights, but no sound • Intermittent input connections • Make certain that all input and speaker
or picture connections are secure
•
Mute is on • Press Mute Button
• Volume control is down • Turn up volume control
Unit turns on, but front-panel • Display brightness is turned off • Follow the instructions in the Display
display does not light up Brightness section on page 37 so that
the display is set to VFD FULL
No sound from any speaker; • Amplifier is in protection mode • Check speaker wire connections for shorts
light around power switch is red due to possible short at receiver and speaker ends
• Amplifier is in protection mode • Contact your local JBL service center
due to internal problems
No sound from surround or • Incorrect surround mode • Select a mode other than Stereo
center speakers • Input is monaural • There is no surround information from mono
sources
• Incorrect configuration • Check speaker mode configuration
• Stereo or Mono program material • The surround decoder may not create center-
or rear-channel information from nonencoded
programs
Unit does not respond to • Weak batteries in remote • Change remote batteries
remote commands • Wrong device selected • Press the AVR selector
• Remote sensor is obscured • Make certain front-panel sensor is visible to
remote or connect remote sensor
Intermittent buzzing in tuner • Local interference • Move unit or antenna away from computers,
fluorescent lights, motors or other electrical
appliances
Letters flash in the channel indicator • Digital audio feed paused • Resume play for DVD
display and digital audio stops • Check that Digital Input is selected
Fan does not appear to operate • Additional cooling may not be required • The fan is activated only when additional
cooling is required due to high internal
temperature. It is normal for the fan to be
inactive at normal volume levels.
43
Processor Reset
In the rare case where the unit’s operation
or the displays seem abnormal, the cause
may involve the erratic operation of the
system’s memory or microprocessor.
To correct this problem, first unplug the
unit from the AC wall outlet and wait at
least three minutes. After the pause,
reconnect the AC power cord and check
the unit’s operation. If the system still
malfunctions, a system reset may clear
the problem.
To clear the AVR580’s entire system
memory including tuner presets, output
level settings, delay times and speaker
configuration data, first put the unit in
Standby by pressing the
System Power
Control Button
2. Next, press and hold
the
Surround Mode 7 and the Tuner
Mode Selector
^ buttons for three
seconds.
The unit will turn on automatically and
display the
RESET message in the
Main Information Display ˜.
NOTE: Resetting the processor will erase
any configuration settings you have made
for speakers, output levels, surround
modes and digital input assignments, as
well as the tuner presets. After a reset,
the unit will be returned to the factory
presets, and all settings for these items
must be reentered.
If the system is still operating incorrectly,
there may have been an electronic dis-
charge or severe AC line interference
that has corrupted the memory or
microprocessor.
If these steps do not solve the problem,
consult an authorized JBL service center.
TROUBLESHOOTING GUIDE