Harman Kardon AVR80 Owner's Manual

Also see for AVR80: Owner's manual Technical manual

Troubleshooting35ENGLISHSYMPTOM CAUSE SOLUTIONNo front panel lights when power switch • No AC Power • Make certain AC power cord is pluggedis pressed into a live outlet.• Check to see if outlet is switch controlled.Display lights, but no sound or picture • Intermittent input connections • Make certain that all input and speakerconnections are secure.• MUTE is on • Press MUTE button.• Volume control is down • Turn up volume control.No sound from surround or center speakers • Incorrect surround mode • Select a mode other than Dolby 3 Stereo,Stereo or Monaural.• Input is monaural • There is no surround information frommono sources.• Incorrect configuration • Check configuration in SET UP MENU1.No On Screen Control Menus • TV input is “S” Video • Change TV input to Composite Video.The menus are available ONLY on CompositeVideo.Unit does not respond to remote commands • Weak batteries in remote • Change remote batteries.• Remote is in LEARN position • Slide USE/LEARN switch to USE.• Remote sensor is obscured • Make certain front panel sensor is visibleto remote.Intermittent buzzing in tuner • Local interference • Move unit or antenna away from computers,fluorescent lights, TVs, motors or otherelectrical appliances.Troubleshooting ChartMemory BackupThis product is equipped with a memorybackup system that preserves tunerpresets and system configurationinformation if the unit is accidentallyunplugged or subject to a power outage.This memory will last for approximatelyone week, after which time allinformation must be re-entered.System ResetIn the rare case where the unit’soperation or the displays seem abnormal,the cause may involve the erraticoperation of the system’s memory ormicroprocessor.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 system’s memory, press andhold the MEMO Ú and CLEAR Ûbuttons at the same time for a fewseconds. After clearing the memory it willbe necessary to re-establish all systemconfiguration information and tunerpresets.If the system is still operating incorrectly,there may have been an electrostaticdischarge or severe AC line interferencethat has corrupted the memory ormicroprocessor.If a reset does not solve the problem,consult an authorized Harman Kardonservice depot.AVR80 manual 11/01/98 13:01 Side 35

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