JBL AVR580 Owner's Manual

Also see for AVR580: Quick start guide

JBL AVR580 Owner's Manual Manual pdf 68 page image

68TROUBLESHOOTING GUIDESYMPTOM CAUSE SOLUTIONUnit does not function when Main • No AC Power • Make certain AC power cord is plugged intoPower Switch is pushed a live outlet• Check to see whether outlet is switch-controlledDisplay lights, but no sound • Intermittent input connections • Make certain that all input and speakeror picture connections are secure• Mute is on • Press Mute Button• Volume control is down • Turn up volume controlUnit turns on, but front-panel • Display brightness is turned off • Follow the instructions in the Displaydisplay does not light up Brightness section on page 37 so thatthe display is set to VFD FULLNo sound from any speaker; • Amplifier is in protection mode • Check speaker wire connections for shortslight around power switch is red due to possible short at receiver and speaker ends• Amplifier is in protection mode • Contact your local JBL service centerdue to internal problemsNo sound from surround or • Incorrect surround mode • Select a mode other than Stereocenter speakers • Input is monaural • There is no surround information from monosources• Incorrect configuration • Check speaker mode configuration• Stereo or Mono program material • The surround decoder may not create center-or rear-channel information from nonencodedprogramsUnit does not respond to • Weak batteries in remote • Change remote batteriesremote commands • Wrong device selected • Press the AVR selector• Remote sensor is obscured • Make certain front-panel sensor is visible toremote or connect remote sensorIntermittent buzzing in tuner • Local interference • Move unit or antenna away from computers,fluorescent lights, motors or other electricalappliancesLetters flash in the channel indicator • Digital audio feed paused • Resume play for DVDdisplay and digital audio stops • Check that Digital Input is selectedFan does not appear to operate • Additional cooling may not be required • The fan is activated only when additionalcooling is required due to high internaltemperature. It is normal for the fan to beinactive at normal volume levels.43Processor ResetIn the rare case where the unit’s operationor the displays seem abnormal, the causemay involve the erratic operation of thesystem’s memory or microprocessor.To correct this problem, first unplug theunit from the AC wall outlet and wait atleast three minutes. After the pause,reconnect the AC power cord and checkthe unit’s operation. If the system stillmalfunctions, a system reset may clearthe problem.To clear the AVR580’s entire systemmemory including tuner presets, outputlevel settings, delay times and speakerconfiguration data, first put the unit inStandby by pressing the System PowerControl Button 2. Next, press and holdthe Surround Mode 7 and the TunerMode Selector ^ buttons for threeseconds.The unit will turn on automatically anddisplay the RESET message in theMain Information Display ˜.NOTE: Resetting the processor will eraseany configuration settings you have madefor speakers, output levels, surroundmodes and digital input assignments, aswell as the tuner presets. After a reset,the unit will be returned to the factorypresets, and all settings for these itemsmust be reentered.If the system is still operating incorrectly,there may have been an electronic dis-charge or severe AC line interferencethat has corrupted the memory ormicroprocessor.If these steps do not solve the problem,consult an authorized JBL service center.TROUBLESHOOTING GUIDE