Harman Kardon AVR85 Owners Manual - Page 38

Troubleshooting 35 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 No On-Screen Control Menus Unit does not respond to remote commands Intermittent buzzing in tuner CAUSE SOLUTION • No AC Power • Make certain AC power cord is plugged into a live outlet. • Check to see if outlet is switch controlled. • Intermittent input connections • Mute is on • Volume control is down • Make certain that all input and speaker connections are secure. • Press Mute button. • Turn up volume control. • 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. • 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 SETUP MENU1. • TV input is S-Video • Change TV connection and input to Composite Video. The menus are available ONLY on Composite Video. • 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. • Local interference • Move unit or antenna away from computers, fluorescent lights, TVs, motors or other electrical appliances.