Harman Kardon AVR80MKII Owners Manual - Page 38

Troubleshooting 36 Troubleshooting Chart SYMPTOM CAUSE SOLUTION No front panel lights when power switch is pressed • No AC Power • Make certain AC power cord is plugged into a live outlet. • Check to see if outlet is switch controlled. Display lights, but no sound or picture • Intermittent input connections • MUTE is on • Volume control is down • Make certain that all input and speaker connections are secure. • Press MUTE button. • up volume control. No sound from any speaker. Light around power switch is red. • Amplifier is in protection mode due to possible short. • Amplifier is in protection mode due to internal problems. • Check speaker wire connections at receiver and speaker ends for shorts. • Contact your local Harman kardon service depot. No sound from surround or center speakers • Incorrect surround mode • Input is monaural • Incorrect configuration • Select a mode other than Stereo or Monaural. • There is no surround information from mono sources. • Check configuration in SET UP MENU 1. No On Screen Control Menus • TV input is "S" Video • Change TV input to Composite Video. The menus are available ONLY on Composite Video. Unit does not respond to remote commands • Weak batteries in remote • Remote is in LEARN position • Remote sensor is obscured • Change remote batteries. • Slide USE/LEARN switch to USE. • Make certain front panel sensor is visible to remote. Intermittent buzzing in tuner • Local interference • Move unit or antenna away from computers, fluorescent lights, TVs, motors or other electrical appliances.