AVR 200 (serv.man7) - Harman Kardon Audio User Guide / Operation Manual. Page 29

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28 TROUBLESHOOTING GUIDE
Troubleshooting Guide
SYMPTOM
CAUSE
SOLUTION
Unit does not function when Main
• No AC Power
• Make certain AC power cord is plugged 
Power Switch 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
No sound from any speaker;
• Amplifier is in protection mode
• Check speaker-wire connections for shorts at receiver 
Light around power switch is red
due to possible short
and speaker ends
• Amplifier is in protection mode 
• Contact your local Harman Kardon service depot
due to internal problems
No sound from surround or 
• Incorrect surround mode
• Select a mode other than Stereo
center speakers
• Incorrect configuration
• Check speaker mode 
• Stereo or Mono program material
• In Dolby Pro Logic Mode the surround decoder may not 
create rear-channel information from nonencoded programs
• Speakers not properly connected
• Check speaker wire connections or use test tone
to verify connections (see page 17)
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
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 200RDS’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 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, the display
will read RESET to confirm the clearing of the
memory. 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 speak-
ers, 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 depot.
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