Harman-Kardon AVR 160 - Manual (Page 46)

46
TROUBLESHOOTING GUIDE
proceSSor reSet
If the unit behaves erratically after a power surge, first turn off the Main
Power Switch and unplug the AC power cord for at least 3 minutes. Plug the
cord back in and turn the receiver on. If this doesn’t help, reset the AVR.
NOTE: A system reset erases all user configurations, including video
resolution, speaker and level settings, and tuner presets. After a reset,
reenter all of these settings from your notes in the appendix worksheets.
To reset the AVR 160, place it in Standby mode (press the front-panel
Standby/On Switch so that the Power Indicator turns amber). Then press the
front-panel Surr. Mode Button until the RESET message appears.
If the receiver does not function correctly after a processor reset, contact an
authorized Harman Kardon service center for assistance. Authorized service
centers may be located by visiting the Web site at www.harmankardon.com.
memory
If the AVR 160 is unplugged or experiences a power outage, it will retain user
settings for up to two weeks.
SYMPTOM CAUSE SOLUTION
Unit does not function when Main
Power Switch is turned on No AC Power • Make certain AC power cord is plugged into a live outlet •
Check whether outlet is switch-controlled •
Display lights, but no sound or
picture Intermittent input connections • Secure all input and speaker connections •
Mute is on • Press Mute Button •
Volume control is down • Turn up volume control •
No sound from any speaker;
PROTECT message appears on
front panel Amplifier is in protection mode due to •
possible short
Check speaker wires for shorts at receiver and speaker ends •
Amplifier is in protection mode due to •
internal problems
Contact your local Harman Kardon service center •
No sound from surround or center
speakers Incorrect surround mode • Select a mode other than Stereo •
Input is monaural • There is no surround information from mono sources •
Incorrect configuration • Check speaker configuration •
Stereo or Mono program material • The surround decoder may not create center- or rear-channel •
information from nonencoded programs
Unit does not respond to remote
commands Weak batteries in remote • Change remote batteries •
Wrong device selected • Press the AVR Settings Button •
Remote sensor is obscured • Make certain front-panel sensor is in line of sight of remote or connect •
an optional remote sensor
Intermittent buzzing in tuner Local interference • Move unit or antenna away from computers, fluorescent lights, •
motors or other electrical appliances
Additional information on troubleshooting possible problems with your AVR 160, or installation-related issues, may be found in the list
of “Frequently Asked Questions”, which is located in the Product Support section at www.harmankardon.com.