Operation Manual

22
TROUBLESHOOTING GUIDE
Troubleshooting Guide
SYMPTOM CAUSE SOLUTION
Unit does not function when Main
Power Switch
 is pushed
No AC Power
t Make certain AC power cord is plugged into a live outlet t
Check to see if outlet is switch controlled
t
Display lights, but no sound or picture Intermittent input connections
t Make certain that all input and speaker connections are secure t
Mute
t is on
Press
t Mute button

Volume control is down t Turn up volume control t
Sound is heard, but Front-Panel Display
does not light
Display brightness is turned off
t Follow the instructions in the Display Brightness section on page 19 so that t
the display is set to VFD FULL
No sound from any speaker; light around
Power switch
 is red
Amplifier is in protection mode due to
t
possible short
Check speaker-wire connections for shorts at receiver and speaker ends t
Amplifier is in protection mode due to
t
internal problems
Contact your local Harman Kardon service depot t
No sound from surround or center
speakers
Incorrect surround mode
t Select a mode other than Stereo t
Incorrect configuration
t Check speaker mode t
Stereo or Mono program material t With (analog or digital) Dolby surround modes, the surround decoder may t
not create rear-channel information from non-encoded programs
Speakers not properly connected t Check speaker-wire connections or use test tone to verify connections (see t
page 14)
Unit does not respond to remote
commands
Weak batteries in remote
t Change remote batteries t
Wrong device selected
t
Press the t AVR selector
,
t Remote sensor  is obscured
Make certain front-panel sensor is visible to remote or connect remote sensor t
Intermittent buzzing in tuner
Local interference t Move unit or antenna away from computers, fluorescent lights, motors or t
other electrical appliances
Digital Audio stops Digital audio feed paused t Resume play for DVD t
Check that Digital Signal is fed to the Digital Input selected t
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’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
 . Next, press and hold the Surround Mode
Button
 for 5 seconds.
The unit will turn on automatically. Note that once
you have cleared the memory in this manner, 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 and 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.
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.
Instructions for users on removal and
disposal of used batteries.
Specification of included battery types.
These symbols shown on the product, the packaging or in the manual or separate
information sheet mean that the product itself, as well as the batteries included
or built into the product, should never be thrown away with general household
waste. Take them to suitable collection points, where proper treatment, recycling
and recovery take place, in accordance with national or local legislation, or European
Directives 2002/96/EC and 2006/66/EC.
Correct handling of the product and batteries to be disposed of helps to save
resources and prevents possible negative effects on the environment or human
health.
The batteries included with your equipment may be Alkaline, Carbon Zinc/
Manganese or Lithium (button cells) type. All types should be disposed of according
to the above instructions.
To remove the batteries from your equipment or remote control, reverse the
procedure described for inserting batteries in the Owners Manual.
For products with a built-in battery that lasts for the lifetime of the product, removal
may not be possible for the user. In this case, recycling or recovery centers handle
the dismantling of the product and the removal of the battery. If, for any reason, it
becomes necessary to replace such a battery, this procedure must be performed by
authorized service centers.