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FROnT- PAnEL COnTROLS
Power Indicator: This LED has three possible modes:
When the AVR is unplugged or the rear-
panel Main Power Switch is off, this LED is off.
Amber indicates that the AVR is ready to be turned on.
When the AVR is turned on, this LED turns white.
NOTE: If the PROTECT message ever appears, turn off the
AVR and unplug it. Check all speaker wires for a possible short.
If none is found, bring the unit to an authorized Harman Kardon
service center for inspection and repair before using it again.
Standby/On Switch: This electrical switch turns the
receiver on, or places it in Standby mode for quick turn-on.
Tuning Mode: This button toggles between manual (one
frequency step at a time) and automatic (seeks frequencies with
acceptable signal strength) tuning mode. It also toggles between
stereo and mono modes when an FM station is tuned.
Channel Level Control: Press this button to adjust the
output level for any amplifier channel. It may be necessary to raise
or lower the level of a specific channel to compensate for the
placement of the relevant speaker in the room in relation to the
listening position; e.g., the center channel speaker is further away
from the listening position than the front left and right speakers,
so that the dialogue is too soft to hear clearly.
To adjust the level of a channel, press this button once. If the
desired channel is not displayed on screen and in the front-panel
Message Display, use the Tuning Buttons to scroll to it. When
the desired channel appears, use the Navigation Buttons to
change the level.
It is recommended that you avoid changing the channel levels after
you have run the EzSet/EQ setup procedure described in the Initial
Setup section, which properly adjusts all channel levels. See the
Advanced Functions section for more information on manual speaker
setup, including level adjustment.
Remote IR Sensor: This sensor receives infrared (IR)
commands from the remote control. It is important to ensure that it
is not blocked. If covering the sensor is unavoidable, use an optional
Harman Kardon HE 1000, or other infrared receiver, connecting it to
the Remote IR Input on the AVR 1600’s rear panel.
Digital Input: To change the audio input for the current
source to one of the six digital audio inputs or the analog input for
the source, press this button and use the Navigation Buttons
to change the input. Although any digital audio input may be
assigned to any source, the analog audio inputs are all permanently
dedicated to the source with which they are labeled.
Navigation: These buttons are used to navigate the
Set: Press this button to select the currently highlighted item.
Message Display: Various messages appear in this two-line
display in response to commands and changes in the incoming signal.
In normal operation, the current source name appears on the upper
line, while the surround mode is displayed on the lower line. When
the on-screen display menu system (OSD) is in use, the current
menu settings appear.
Tuning: Press these buttons to tune a radio station.
Surround Mode: Press this button to select a surround
sound (e.g., multichannel) mode. Each press changes the surround
mode category: AUTO SELECT, VIRTUAL, STEREO, MOVIE, MUSIC,
VIDEO GAME. To change the specific mode within the category, use
the Surround Select Buttons. See the Advanced Functions section
for more information on surround modes.
Surround Select: After you have selected the desired
surround mode category, press these buttons to select a specific
mode within the category, such as to change from Dolby Pro Logic
IIx Movie mode to Logic 7 Movie mode. Surround mode availability
depends on the nature of the source input signal, i.e., digital versus
analog, and the number of channels encoded within the signal.
Source Selectors: Press these buttons to select a source
device, which is a component where a playback signal originates,
Headphone Jack/EzSet/EQ Microphone
Input: Plug a 1/4” headphone plug into this jack for private
This jack is also used to connect the supplied microphone for the
EzSet/EQ procedure described in the Initial Setup section.
Digital Audio Inputs (Optical 3 and Coaxial 3):
Connect a source component that will only be used temporarily,
such as a digital camera or game console, to these jacks. Use only
one type of audio. The audio input may be assigned to any video
USB Port: This port may be used in case a software upgrade
for the receiver is offered in the future. Do not connect a storage
device, peripheral product or a PC here, unless instructed to do
so as part of an upgrade procedure.
Video 3 Analog Audio and Video Inputs: Connect
a source component that will only be used temporarily, such as a
digital camera or game console, to these jacks. These inputs are
selected as the Video 3 source, and may not be assigned to other
Volume Knob: Turn this knob to raise or lower the volume.