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TROUBLESHOOTING GUIDE
Troubleshooting Guide
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 DPR’s entire system memory includ-
ing 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, press the
Surround Mode
5
and the
RDS
^
buttons
simultaneously.
The unit will turn on automatically and display
the
RESET
message in the
Main Infor-
mation Display
˜
. 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, 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 center.
SYMPTOM
CAUSE
SOLUTION
Unit does not function when
Main
• No AC Power
• Make certain AC power cord is plugged
Power Switch
1
is pushed
into a live outlet
• Check to see if outlet is switch controlled
Display lights, but no sound
• Intermittent input connections
• Make certain that all input and speaker
or picture
connections are secure
•
Mute
is on
• Press
Mute
button
,
• Volume control is down
• Turn up volume control
Units turns on, but Front-Panel
• Display brightness is turned off
• Follow the instructions in the Display Brightness section
Display does not light
on page 40 so that the display is set to VFD FULL
No sound from any speaker;
• Amplifier is in protection mode
• Check speaker-wire connections for shorts at receiver
light around
Power switch
2
is red
due to possible short
and 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 mono
• There is no surround information from mono sources (except with
Theater and Hall surround modes)
• Incorrect configuration
• Check speaker mode configuration
• Stereo or Mono program material
• Some surround modes may not create 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
5
•
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
Ú
and Digital Audio stops
• Check that Digital Signal is fed to the Digital Input selected
