Troubleshooting Guide
Your AVR 120 receiver has been designed to provide many years of
SYMPTOM | CAUSE | SOLUTION |
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Unit does not function when Main | • No AC Power | • Make certain AC power cord is plugged into |
Power Switch is pushed |
| a live outlet |
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| • Check to see whether outlet is |
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Display lights, but no sound | • Intermittent input connections | • Make certain that all input and speaker connections |
or picture |
| are secure |
| • Mute is on | • Press Mute button |
| • Volume control is down | • Turn up volume control |
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Unit turns on, but | • Display brightness is turned off | • Follow the instructions in the Display Brightness section |
display does not light up |
| on page 26 so that the display is set to VFD FULL |
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No sound from any speaker; | • Amplifier is in protection mode | • Check speaker wire connections for shorts at receiver and |
light around power switch is red | due to possible short | speaker ends |
| • Amplifier is in protection mode | • Contact your local Harman Kardon service center, which you can |
| due to internal problems | locate by visiting our Web site at www.harmankardon.com |
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No sound from surround or | • Incorrect surround mode | • Select a mode other than Stereo or Dolby 3 Stereo |
center speakers | • Input is monaural | • There is no surround information from mono sources |
| • Incorrect configuration | • Check speaker mode configuratioin |
| • Stereo or Mono program material | • The surround decoder may not create center- or |
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| information from nonencoded programs |
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Unit does not respond to | • Weak batteries in remote | • Change remote batteries |
remote commands | • Wrong device selected | • Press the AVR selector |
| • Remote sensor is obscured | • Make certain |
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| or connect remote sensor |
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Intermittent buzzing in tuner | • Local interference | • Move unit or antenna away from computers, fluorescent |
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| lights, motors or other electrical appliances |
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Letters flash in the channel indicator | • Digital audio feed paused | • Resume play for DVD |
display and digital audio stops |
| • Check that Digital Input is selected |
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 120’s entire system memory including tuner presets, output level settings, delay times and speaker configuration data, first put the unit in Standby by pressing the
System Power Control Button 2. Next,
simultaneously press and hold the Tone Mode
6and the FM Mode Selector @ buttons for three seconds.
The unit will turn on automatically and display the RESET message in the Main Information Display F. Note that once you have cleared the memory in this manner, it is necessary to reestablish all system configuration settings and tuner presets.
NOTE: After a reset, the unit will be returned to the factory presets, and all settings for tuner memory and presets speaker configuration, delay times and surround mode memories 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. You can locate the service center nearest
to you by visiting our Web site at www.harmankardon.com.
Memory Backup
This product is equipped with a memory backup system that preserves the system configuration information and tuner presets if the unit is acci- dentally unplugged or subjected to a power outage. This memory will last for approximately two weeks, after which time all information must be reentered.
