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AVR

Front-Panel Controls

4

power 

Indicator

message 

display

volume 

knob

video  

modes 

button

Setup 

button

Ir 

Sensor

power 

button

left/right 

buttons

headphone Jack/ 

ezSet/eq  

mic Input

back/exit  

button

resolution  

button

Audio  

effects  

button

Surround  

modes 

button

up/down  

buttons

uSb 

port

ok  

button

hdmI

®

 front  

Input connector

Info 

button

Source list  

button

English

AVR

Front-Panel Controls

Power indicator/Power button: the Avr has four different power modes:

•  Off (power indicator not illuminated): when the rear-panel main power switch is in 

the off position or the power cord is unplugged the Avr is off and will not respond to 

any commands. plugging the power cord into a live Ac outlet and setting the main 

power switch in the on position will put the Avr into the eco Standby mode.

•  Eco Standby (power indicator glows solid amber): the eco Standby mode minimizes 

energy consumption when you're not using the Avr. when the Avr is in eco Standby, 

it will not automatically turn on or play audio in response to an Airplay signal from 

a networked device. when the Avr is in eco Standby, pressing the power button 

turns it on. to put the Avr into eco Standby when it is on, press the power button 

for more than three seconds. note: the Avr will not automatically enter the eco 

Standby mode.

•  Standby (power indicator glows solid amber): the Standby mode mutes the Avr 

and shuts off its front-panel display, but allows the Avr to automatically turn on and 

play audio in response to an Airplay signal from a networked device. See Listening 

to Media via AirPlay, on page 

xx

, for more information. when the Avr is in Standby, 

pressing the power button turns it on. to put the Avr into Standby when it is on, press 

the power button for less than three seconds. note: the Avr will automatically enter 

the Standby mode whenever no control buttons have been pressed and no audio 

signal has been present for 30 minutes.

•  On (power indicator glows solid white): when the Avr is on it is fully operational.

IMPORTANT NOTE: If the protect message ever appears on the Avr’s front-

panel message display, turn off the Avr and unplug it from the Ac outlet. 

 

check all speaker wires for a possible short-circuit (the “+” and “–” conductors 

touching each other or both touching the same piece of metal). If a short-circuit is not 

found, bring the unit to an authorized harman kardon service center for inspection 

and repair before using it again.

Setup button: press this button to access the Avr’s main menu.
Info button: press this button to access the Avr’s Source submenu, which contains the 

settings for the source currently playing. use the up/down buttons to scroll through the 

different settings.
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.
IR sensor: this sensor receives infrared (Ir) commands from the remote control. It is 

important to ensure that the sensor is not blocked. If covering the Ir sensor is unavoidable 

(such as when the receiver is installed inside of a cabinet), connect an optional infrared 

receiver to the remote Ir In connector on the Avr’s rear panel.
Volume knob: turn this knob to raise or lower the volume.
Headphone jack/EzSet/EQ Mic input: connect a 1/4" stereo headphone plug to this 

jack for private listening. this jack is also used to connect the supplied microphone for 

the ezSet/eq procedure described in Configure the AVR For Your Speakers, on page 

xx

.

USB port: you can use this port to perform software upgrades that may be offered in the 

future. do not connect a storage device, peripheral product or a pc here, unless you are 

instructed to do so as part of an upgrade procedure.
HDMI (High-Definition Multimedia Interface

) Front Input connector: connect an 

hdmI-capable source component that will be used only temporarily, such as a camcorder 

or game console, here. 
Resolution button: press this button to access the Avr’s video output resolution setting: 

480i, 480p, 720p, 1080i, 1080p or 1080p/24hz. use the up/down and ok buttons to 

change the setting.

IMPORTANT NOTE: If you set the Avr’s video output resolution higher than 

the capabilities of the actual connection between the Avr and your tv or video 

display, you will not see a picture. If you are using the composite video connection 

from the Avr to your tv (see Connect Your TV or Video Display, on page 17), 

press the resolution button and use the up/down and ok buttons to change the 

resolution to 480i.

Audio Effects button: press this button to access the Audio effects submenu, which 

allows you to adjust the Avr’s tone controls and other audio controls. See Set Up Your 

Sources, on page 26, for more information.
Video Modes button: press this button for direct access to the video modes submenu, 

which contains settings you can use to improve the video picture. use the ok button 

to scroll through the different modes, and use the up/down and left/right buttons to 

make adjustments within each mode. See Set Up Your Sources, on page 26, for more 

information.
Surround Modes button: press this button to select a listening mode. the Surround 

modes menu will appear on screen, and the menu line will appear in the front-panel 

display. use the up/down buttons to change the surround-mode category and the left/

right buttons to change the surround mode for that category. See Set Up Your Sources, 

on page 26, for more information.
Back/Exit button: press this button to return to the previous menu or to exit the menu 

system.
Left/Right buttons: use these buttons to navigate the Avr’s menus.
OK button: press this button to select the currently highlighted item.
Up/Down buttons: use these buttons to navigate the Avr’s menus.
Source List button: press this button to select a source device to watch/listen to. use 

the up/down buttons to scroll through the source-device list, and press the ok button to 

select the source being displayed. 

AVR

Rear-Panel Connectors

6

Rear-Panel Connectors (AVR 3700 shown)

hdmI Input  

connectors

hdmI output 

connectors

Analog video  

connectors

wi-fi Antenna connector  

(Avr 3700/Avr 370)

pre-out connectors  

(Avr 3700/Avr 370)

Subwoofer 

connector

radio Antenna 

connectors

Speaker  

connectors

digital Audio 

connectors

fan 

vents

network  

connector

Ac Input  

connector

Ir and trigger 

connectors

Analog Audio 

connectors

main power  

Switch

rS-232  

connector

English

AVR

Rear-Panel Connectors

7

Radio Antenna connectors: connect the supplied Am and fm antennas to their 

respective terminals for radio reception.
Wi-Fi

 Antenna connector (AVR 3700/AVR 370): If your home network is wi-fi, 

connect the supplied wi-fi antenna here to enjoy Internet radio and content from dlnA

®

-

compatible devices that are connected to the network. you do not need to make a wired 

network connection. 
Network connector: If your home network is wired, use a cat. 5 or cat. 5e ethernet 

cable (not supplied) to connect the Avr’s network connector to your home network to 

enjoy Internet radio and content from dlnA-compatible devices that are connected to the 

network. See Connect to Your Home Network, on page 

xx

, for more information.

 Input connectors: An hdmI connection transmits digital audio and video signals 

between devices. If your source devices have hdmI connectors, using them will provide 

the best possible video and audio performance quality. Since the hdmI cable carries 

both digital video and digital audio signals, you do not have to make any additional audio 

connections for devices you connect via the hdmI connection. See Connect Your Audio 

and Video Source Devices, on page 

xx

, for more information.

HDMI Output connectors: If your tv has an hdmI connector, use an hdmI cable (not 

included) to connect it to the Avr’s hdmI out connector. the Avr will automatically 

transcode component and composite video input signals to the hdmI format (upscaling 

to as high as 1080p), so you do not need to make any other connections to your tv from 

the Avr or from any video source devices you connect to the Avr. 

NOTE: the Avr 3700 

and Avr 370 have two hdmI out connectors.

•  when connecting a dvI-equipped display to the hdmI out connector, use an 

hdmI-to-dvI adapter and make a separate audio connection.

•  make sure the hdmI-equipped display is hdcp (high-bandwidth digital content 

protection)-compliant. If it isn’t, do not connect it via an hdmI connection; use an 

analog video connection instead and make a separate audio connection.

Analog Video connectors: the following Analog video connectors are provided:

•  Composite Video Input connectors: use composite video connectors for video 

source devices that don’t have hdmI or component video connectors. you will also 

need to make an audio connection from the source device to the Avr. See Connect 

Your Audio and Video Source Devices, on page 18, for more information.

•  Component Video Input connectors: If any of your video source devices have 

component video connectors (and do not have hdmI connectors), using the 

component video connectors will provide superior video performance. you will also 

need to make an audio connection from the device to the receiver. See Connect Your 

Audio and Video Source Devices, on page 18, for more information.

•  Composite Video Monitor Out connector: If your tv or video display does not 

have an hdmI connector, use a composite video cable (not included) to connect the 

Avr’s composite video monitor out connector to your tv ’s composite video input. 

NOTE: the hdmI connection to your tv is preferred. If you use the composite video 

connection to your tv, you will not be able to view the Avr’s on-screen menus.

Analog Audio connectors: the following analog audio connectors are provided:

•  Analog Audio Input connectors: use the Avr’s Analog Audio Input connectors for 

source devices that don’t have hdmI or digital audio connectors. See Connect Your 

Audio and Video Source Devices, on page 

xx

, for more information.

•  Analog Rec[ord] Out connectors: connect this analog audio output to the analog 

audio input of a recording device. A signal is available at this output whenever an 

analog audio source is playing.

•  Zone 2 Out connectors: connect these jacks to an external amplifier to power the 

speakers in the remote zone of a multizone system.

Pre-Out connectors (AVR 3700/AVR 370): connect these jacks to external amplifiers if 

more power is desired. the function of the Surround back/front height/Zone 2 connectors 

is determined by the setting you make for the Assigned Amp. See Manual Speaker Setup: 

Number of Speakers, on page 

xx

, for more information.

Subwoofer connector: connect this jack to a powered subwoofer with a line-level input. 

See Connect Your Subwoofer, on page 

xx

, for more information. note: the Avr 3700 and 

Avr 370 have two subwoofer connectors.
IR and Trigger connectors: the following Ir and trigger connectors are provided:

•  IR Remote In/Out connectors: when the Ir sensor on the front panel is blocked 

(such as when the Avr is installed inside a cabinet), connect an optional Ir receiver 

to the Ir remote In jack. the Ir remote out jack may be connected to the Ir input of 

a compatible product to enable remote control through the Avr.

•  Zone 2 IR Input connector: connect a remote Ir receiver located in Zone 2 of a 

multizone system to this jack to control the Avr (and any source devices connected 

to the remote Ir output connector) from the remote zone.

•  12V Trigger connector: this connector provides 12v dc whenever the Avr is on. It 

can be used to turn on and off other devices such as a powered subwoofer.

Speaker connectors: use two-conductor speaker wire to connect each set of terminals 

to the correct speaker. See Connect Your Speakers, on page 

xx

, for more information.

NOTE: the Assigned Amp speaker connectors are used for the surround back 

channels in a 7.1- channel home theater, or you can reassign them to a remote room 

for multizone operation or to front height channels for dolby

®

 pro logic IIz operation. 

See Place Your Speakers, on page xx, for more information.

Digital Audio connectors: If your non-hdmI source devices have digital outputs, 

connect them to the Avr’s digital audio connectors. note: make only one type of digital 

connection (hdmI, optical or coaxial) from each device. See Connect Your Audio and Video 

Source Devices, on page 

xx

, for more information.

RS-232 connector: this connector is used to connect to external control hardware. 

consult a certified professional installer for more information.
Fan Vents: these vents are used by the Avr’s fan to cool the system. maintain a 

clearance of at least three inches (75mm) from the nearest surface to avoid overheating 

the unit. It is normal for the fan to remain off at most normal volume levels. An automatic 

temperature sensor turns the fan on only when it is needed.

Main Power switch: this mechanical switch turns the Avr’s power supply on or off. It is 

usually left on, and it cannot be turned on or off using the remote control.
AC Input connector: After you have made and verified all other connections, plug the 

supplied Ac power cord into this receptacle and into an unswitched wall outlet.