Harman Kardon AVR 140 Owners Manual - Page 53

TROUBLESHOOTING GUIDE SYMPTOM CAUSE SOLUTION Unit does not function when Main Power Switch is pushed • No AC Power • Make certain AC power cord is plugged into a live outlet • Check to see whether 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 f • Turn 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 for shorts at receiver and speaker ends • Contact your local Harman Kardon service center No sound from surround or center speakers • Incorrect surround mode • Input is monaural • Incorrect configuration • Stereo or Mono program material • Select a mode other than Stereo • There is no surround information from mono sources • Check speaker mode configuration • 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 • Wrong device selected • Remote sensor is obscured • Change remote batteries • Press the AVR selector • Make certain front panel sensor is visible to remote or connect remote sensor Intermittent buzzing in tuner • Local interference • Move unit or antenna away from computers, fluorescent lights, motors or other electrical appliances Letters flash in the channel indicator display and digital audio stops • Digital audio feed paused • Resume play for DVD • Check that Digital Input is selected In addition to the items shown above, additional information on troubleshooting possible problems with your AVR 140, or 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 at www.harmankardon.com. Processor Reset In the rare case where the unit's operation or the displays seem abnormal, the cause may involve the erratic operation of the system's memory or microprocessor. To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the unit's operation. If the system still malfunctions, a system reset may clear the problem. To clear the AVR 140's entire system memory including tuner presets, output level settings, delay times and speaker configuration data, first place the AVR in Standby Mode, and then press and hold the Tone Mode Button 5 button for three seconds. The unit will turn on automatically. NOTE: Resetting the processor will erase any configuration settings you have made for speakers, output levels, surround modes, digital input assignments as well as the tuner presets. The unit will be returned to the factory presets, and all settings for these items must be reentered. If the system is still operating incorrectly, there may have been an electronic discharge or severe AC line interference that has corrupted the memory or microprocessor. If these steps do not solve the problem, consult an authorized Harman Kardon service center. TROUBLESHOOTING GUIDE 53