JBL AVR580 manual Processor Reset, Troubleshooting Guide, Press Mute Button

TROUBLESHOOTING GUIDE

SYMPTOM CAUSE SOLUTION

Unit does not function when Main	• No AC Power
Power Switch is pushed

•Make certain AC power cord is plugged into 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 43
	• 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; light around power switch is red

• Amplifier is in protection mode	• Check speaker wire connections for shorts
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.

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.

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