Harman Kardon AVR45 Owners Manual - Page 44

Troubleshooting Guide 41 Troubleshooting Guide SYMPTOM No front panel lights when power switch is pressed Display lights, but no sound or picture No sound from any speaker. Light around power switch is red No sound from surround or center speakers Unit does not respond to remote commands Intermittent buzzing in tuner CAUSE • No AC Power • Intermittent input connections • Mute is on • Volume control is down • Amplifier is in protection mode due to possible short • Amplifier is in protection mode due to internal problems • Incorrect surround mode • Input is monaural • Incorrect configuration • Stereo or Mono program material • Weak batteries in remote • Wrong device selected • Remote sensor is obscured • Local interference SOLUTION • Make certain AC power cord is plugged into a live outlet • Check to see if outlet is switch controlled • Make certain that all input and speaker connections are secure • Press Mute button • Turn up volume control • Check speaker-wire connections at receiver and speaker ends for shorts • Contact your local Harman Kardon service depot • Select a mode other than Stereo • There is no surround information from mono sources • Check speaker mode • The surround decoder may not create center or rear channel information from non-encoded programs • Change remote batteries • Press the AVR selector • Make certain front panel sensor is visible to remote or connect remote sensor • Move unit or antenna away from computers, fluorescent lights, motors or other electrical appliances