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AVR 700/AVR 70/AVR 70C
19
Troubleshooting
Symptom Cause Solution
Unit does not function when Main Power switch is
turned on
• No AC power • Ensure that the power cord is plugged into a live AC
power outlet
• Check if the AC outlet is switch-controlled
Front-panel Message display lights, but there's no
sound or picture
• Intermittent input connection
• Mute is on
• Volume control is turned down
• Secure all input and speaker connections
• Press Mute button
• Turn up Volume control
No sound from any speaker • Speakers set to “Off” in System Setup menu • Set speakers to “On” in System Setup menu. See
Additional Setup Menu Items: Speaker On/Off, on
page 15, for more information.
No sound from any speaker; PROTECT message
appears on Message display
• Amplier is in protection mode due to possible short
circuit
• Amplifier is in protection mode due to internal problems
• Check all speaker wires at speaker and AVR
connections for crossed wires
• Contact your local Harman Kardon service center
No sound from center or surround speakers • Incorrect surround mode
• Program material is monophonic
• Incorrect speaker configuration
• Program material is stereo
• Select a surround mode other than stereo
• Mono programs contain no surround information
• Check the speaker configuration in the setup menu
• The surround decoder may not create center- or
surround-channel information from nonencoded stereo
programs
Unit does not respond to remote control commands • Weak batteries in remote
• AVR not selected
• Remote sensor is obscured
• Change batteries in remote
• Press the Setup/AVR button
• Ensure that the AVR’s front-panel remote sensor is in
the line of sight of the remote
Intermittent buzzing in tuner • Local interference • Move the AVR or antenna away from computers,
fluorescent lights, motors or other electrical appliances
Additional information on troubleshooting possible problems with your AVR and installation-related issues may be found in the list of “Frequently Asked Questions,” which is located in the Product
Support section of our Web site: www.harmankardon.com
Troubleshooting