Harman Kardon AVR220 Service Manual

Also see for AVR 220: Manual Service manual Specifications Owner's manual Owner's manual

Contents

Harman Kardon AVR220 Service Manual Manual pdf 14 page image

14 TROUBLESHOOTING GUIDETroubleshooting 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 speaker connectionsor picture 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 Display Brightness sectiondisplay does not light up on page 31 so that the display is set to VFD FULLNo sound from any speaker; • Amplifier is in protection mode • Check speaker wire connections for shorts at receiver andlight around power switch is red due to possible short speaker ends• Amplifier is in protection mode • Contact your local Harman Kardon service center, which you candue to internal problems locate by visiting our Web site at www.harmankardon.comNo sound from surround or • Incorrect surround mode • Select a mode other than Stereo or Dolby 3 Stereocenter speakers • Input is monaural • There is no surround information from mono sources• Incorrect configuration • Check speaker mode configuratioin• Stereo or Mono program material • The surround decoder may not create center- or rear-channelinformation from nonencoded programsUnit 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 to remoteor connect remote sensorIntermittent buzzing in tuner • Local interference • Move unit or antenna away from computers, fluorescentlights, motors or other electrical appliancesLetters flash in the channel indicator • Digital audio feed paused • Resume play for DVDdisplay and digital audio stops • Check that Digital Input is selectedProcessor ResetIn the rare case where the unit’s operation orthe displays seem abnormal, the cause mayinvolve the erratic operation of the system’smemory or microprocessor.To correct this problem, first unplug the unitfrom the AC wall outlet and wait at least threeminutes. After the pause, reconnect the ACpower cord and check the unit’s operation. Ifthe system still malfunctions, a system “reset”may clear the problem.To clear the AVR 220’s entire system memoryincluding tuner presets, output level settings,delay times and speaker configuration data,first put the unit in Standby by pressing theSystem Power Control Button 2. Next,simultaneously press and hold the Tone Mode6 and the FM Mode Selector @ buttonsfor three seconds.The unit will turn on automatically and displaythe RESET message in the MainInformation Display S. Note that once youhave cleared the memory in this manner, it isnecessary to reestablish all system configurationsettings and tuner presets.NOTE: Resetting the processor will erase anyconfiguration settings you have made forspeakers, output levels, surround modes, digitalinput assignments as well as the tuner presets.After a reset, the unit will be returned to thefactory presets, and all settings for these itemsmust be reentered.If the system is still operating incorrectly, theremay have been an electronic discharge orsevere AC line interference that has corruptedthe memory or microprocessor.If these steps do not solve the problem, consultan authorized Harman Kardon service center.You can locate the service center nearestto you by visiting our Web site atwww.harmankardon.com.Your AVR 220 receiver has been designed to provide many years of trouble-free service. In the event that you are experiencing difficulties, please check thesuggestions below for a possible solution to your problem. Additional information on the AVR 220, including updated information and user hints, is avail-able from our Web site at www.harmankardon.com.AVR220 harman/kardon