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Troubleshooting Guide
SYMPTOM
Unit does not function when Main
Power Switch is pushed
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
Unit does not respond to
remote commands
Intermittent buzzing in tuner
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 100's entire system memory
including tuner presets, output level settings,
delay times and speaker configuration data,
first turn the unit off by pressing and releasing
34 TROUBLESHOOTING GUIDE
CAUSE
• No AC Power
• Intermittent input connections
• Mute is on
• Volume control is down
• Amplifier is in protection mode
due to possible short
• Amplifier is in protection mode
due to internal problems
• Incorrect surround mode
• Input is monaural
• Incorrect configuration
• Stereo or Mono program material
• Speakers not properly connected
• Weak batteries in remote
• Wrong device selected
• Remote sensor is obscured
• Local interference
the Main Power Switch 1 so that it pops
out from its normal recessed position. Next,
press and hold the CD ! and Vid 2 #
buttons while pushing in the Main Power
Switch 1 to turn the unit back on. Note that
once you have cleared the memory in this man-
ner, it is necessary to re-establish all system
configuration settings and tuner presets.
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.
After a reset the unit will be returned to the
factory presets, and all settings for these items
must be reentered.
SOLUTION
• Make certain AC power cord is plugged
into a live outlet
• Check to see if outlet is switch controlled
• Make certain that all input and speaker
connections are secure
• Press Mute button
• Turn up volume control
• Check speaker-wire connections for shorts at receiver
and speaker ends
• Contact your local Harman Kardon service depot
• Select a mode other than Stereo
• There is no surround information from mono sources
• Check speaker mode
• The surround decoder may not create center- or rear-channel
information from nonencoded programs
• Check speaker wire connections or use test tone
to verify connections (see page 17)
• Change remote batteries
• Press the AVR selector
• Make certain front-panel sensor is visible to remote or
connect remote sensor
• Move unit or antenna away from computers, fluorescent lights,
motors or other electrical appliances
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 depot.
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