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TROUBLESHOOTING 63
TROUBLESHOOTING GUIDE
S
YMPTOM CAUSE SOLUTION
Unit does not function when Main • No AC Power • Make certain AC power cord is plugged into
Power Switch is pushed a live outlet
• Check to see whether outlet is switch-controlled
D
isplay 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 f
¬
Volume control is down Turn up volume control
N
o sound from any speaker; Amplifier is in protection mode • Check speaker wire connections for shorts at receiver and
l
ight around power switch is red d
ue to possible short speaker ends
Amplifier is in protection mode • Contact your local Harman Kardon service center
due to internal problems
No sound from surround or • Incorrect surround mode • Select a mode other than Stereo
center speakers • Input is monaural There is no surround information from mono sources
• Incorrect configuration • Check speaker mode 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 • Weak batteries in remote • Change remote batteries
remote commands • Wrong device selected • Press the AVR selector
• Remote sensor is obscured • 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 • Digital audio feed paused • Resume play for DVD
display and digital audio stops • Check that Digital Input is selected
In addition to the items shown above, additional information on troubleshooting possible problems with your AVR 340, 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 in which the unit’s operation or the dis-
plays seem abnor
mal,
the cause may involve the erratic
operation of the system’
s memor
y 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 sys-
tem reset may clear the problem.
T
o clear the
A
VR 340’s entire system memory includ-
ing 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 configu-
ration settings you have made for speakers, output
levels
,
surround modes and digital input assignments,
as well as the tuner presets. Before performing a
processor reset,
we suggest that you record your
current system settings on the worksheet found on
page 66. 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.
AVR 340 OM 3/22/06 9:09 AM Page 63
63


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