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30

OPERATION

Now that you have installed your components and completed a basic 
configuration, you are ready to begin enjoying your home theater system.

Flip down the Front-Panel Door and press the Main Power Switch in. The 
Power Indicator on the front panel will turn amber, indicating that the AVR 
is in Standby mode and is ready to be turned on. The Main Power Switch is 
normally left on. 

There are several ways to turn on the AVR 760/AVR 660:

Press the Standby/On Switch on the front panel. 

a) 

Using the remote, press the AVR Power On Button or any of the Source 

b) 

Selectors.

To turn the receiver off, press either the Standby/On Switch on the front panel 
or the AVR Power Off Button on the remote. Unless the receiver will not be 
used for an extended period of time, leave the Main Power Switch on. When 
the Main Power Switch is turned off, any settings you have programmed will 
be preserved for up to four weeks.

IMPORTANT NOTE: If the PROTECT message ever appears in the 
Message Display, turn off the AVR and unplug it. Check all speaker wires for 
a short. If none is found, bring the unit to an authorized Harman Kardon 
service center for inspection and repair before using it again.

Adjust the volume either by turning the knob on the front panel (clockwise to 
increase volume or counterclockwise to decrease volume), or by pressing the 
Volume Control on the remote. The volume is displayed as a negative number 
of decibels (dB) below the 0dB reference point. 

0dB is the maximum recommended volume for the AVR 760/AVR 660. 
Although it’s possible to turn the volume to a higher level, doing so may 
damage your hearing and your speakers. For certain more dynamic audio 
materials, even 0dB may be too high, allowing for damage to equipment. Use 
caution with regard to volume levels.

To change the volume level display from the default decibel scale to a 0-to-
90 scale, adjust the Volume Units setting in the System Settings menu, as 
described in the Advanced Functions Manual, available on the  
harmankardon.com web site.

The AVR 760/AVR 660 is one of the first products to implement Dolby Volume 
processing, which can improve the audio performance of the system by 
revealing subtle details even at normal home-listening volumes.

One concern of the typical home theater listener is that volumes can vary 
widely for different programs played by a source, e.g., television commercial 
advertisements are often much louder than the main feature. Another is that 
details heard in the recording studio at typically high reference volumes are 
lost at the lower volumes used by many listeners. 

The AVR 760/AVR 660 uses two Dolby Volume techniques to address these 
issues. The Leveler module maintains a consistent listening volume within 
a source, e.g., while watching commercial television or while listening to 
different tracks on a USB drive. The Modeler module endeavors to re-create 
the reference presentation that was heard in the recording studio without 
losing portions of the program at the typically lower volume levels often used 
in the home. When the Modeler module is active, you may notice details of 
the performance that were hidden when the program was played on other 
equipment.

To adjust the Dolby Volume setting, press the Audio Effects Button. A 
screen similar to the one shown in Figure 24 will appear. Move the cursor 
to highlight the Dolby Volume setting, and each press of the OK Button will 
switch to one of the options in Table 3 below. The settings do not refer to the 
volume level, which is adjusted normally using the Volume Control, but rather 
to the amount of Dolby Volume processing desired. See Figure 24.

Figure 24 – Adjust Dolby Volume

No Dolby Volume processing

Only Dolby Volume Modeler module is active

Both Modeler and Leveler modules are active; Leveler 
module has a value of 3

Both Modeler and Leveler modules are active; Leveler 
module has a value of 9

NOTE: Dolby Volume is compatible with sources recorded at a sampling 
rate of 48kHz. High-resolution sources, such as DTS 96/24, will be decoded 
at 48kHz. DTS 96/24 programs will be played in DTS 5.1 mode. To hear DTS 
96/24 materials in high resolution, turn off Dolby Volume.

Calibration Offset is a feature of Dolby Volume that allows you to adjust the 
calibration of the AVR 760/AVR 660 to optimally match your speakers and 
listening environment. The AVR 760/AVR 660 is calibrated with the average 
speaker sensitivity in mind; however, different speakers may have different 
sensitivities. Use Calibration Offset to adjust the calibration of the AVR 760/
AVR 660 according to the types of speakers you have.

AVR 660 -760, 230V Service Manual

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31

OPERATION

The average home audio speaker sensitivity is 88dB SPL (8 ohms, 1 watt, 
1 meter). Check the sensitivity specification for your loudspeakers, found 
in the owner’s manual or on the manufacturer’s Web site. If your speakers 
have a sensitivity rating greater than 88dB SPL, increase Calibration Offset 
by the difference between your speakers’ sensitivity and 88dB. If they have 
a sensitivity rating of less than 88dB SPL, decrease Calibration Offset by the 
difference between your speakers’ sensitivity and 88dB.

To adjust the Calibration Offset, press the AVR Settings Button and scroll to 
the System Setup menu, then select it. Scroll to the Dolby Volume Calibration 
line, which defaults to 0dB. Use the 

M N

 Buttons to adjust the setting within 

the range of –10dB to +10dB.

To temporarily mute all speakers and the headphones, press the Mute Button 
on the remote. Any recording in progress will not be affected. The MUTE 
message will appear in the display as a reminder. To restore normal audio, 
press the Mute Button again, or adjust the volume. Turning off the AVR will 
also end muting.

The sleep timer sets the AVR to play for up to 90 minutes and then turn off 
automatically.

Press the Sleep Settings Button on the remote, and the time until turn-off 
will be displayed. Each additional press of the Sleep Button decreases the play 
time by 10 minutes, with a maximum of 90 minutes. The SLEEP OFF setting 
disables the sleep timer.

When the sleep timer has been set, the front-panel display will automatically 
dim to half-brightness and the Volume Control will go dark. 

If you press the Sleep Button after the timer has been set, the remaining play 
time will be displayed. Press the Sleep Button again to change the play time.

Adjust the Dolby Volume setting, tone controls, LFE trim or equalization, or 
select a speaker configuration to improve performance. Access these settings 
from the Audio Effects submenu, as described in the Advanced Functions 
Manual.

It is recommended that you leave the settings at their default values until you 
are more familiar with your system.

The settings in the Video Modes menu are used to fine-tune the picture, 
if necessary, after making all adjustments on the video display. It is 
recommended that you leave the settings at their defaults. See the Advanced 
Functions Manual for detailed information.

Plug the 1/4"-inch plug on a pair of headphones into the jack behind the 
front-panel door for private listening. The default Dolby Headphone bypass 
mode delivers a conventional 2-channel signal to the headphones. 

Press the Surround Modes Button on the front panel or the remote, to 
switch to Dolby Headphone virtual surround processing, which emulates a 
5.1-channel speaker system. No other surround modes are available for the 
headphones.

Press the front-panel Source List Button. Use the 

KL

 Buttons to scroll 

through the sources. Using the on-screen menus, press the AVR Settings 
Button, highlight “Source Select” and press the OK Button. Scroll to the 
desired source in the slide-in menu and press the OK Button. 

For direct access to any source, press its Source Selector on the remote. To 
directly select Source A, B, C or D, first press the AVR Settings Button, then 
press the appropriate Soft Key: red for Source A, green for Source B, yellow for 
Source C or blue for Source D. When using the Zone 2 remote, make sure to 
connect the Zone 2 Video Output to a display in the remote zone, and select 
these sources using the on-screen menu system. 

The AVR selects the audio and video inputs assigned to the source, and any 
other settings made during setup.  

The source name, the audio and video inputs assigned to the source, and the 
surround mode will appear on the front panel. The source name and surround 
mode will also appear on screen. 

VIDEO TROUBLESHOOTING TIPS:

If there is no picture: 

Check the source selection and video input assignment.

 

Check the wires for a loose or incorrect connection.

 

Check the video input selection on the display device (TV). 

 

Press the front-panel Resolution Button and use the 

 

KL

 Buttons until 

the correct video output resolution is selected and a picture appears. 
The CANCEL message will appear. Press the 

L

 Button to view the 

ACCEPT option, then press the OK Button.

Additional Tips for HDMI Connections:

Turn off all devices (including the TV, AVR and any source components). 

 

Unplug the HDMI cables, starting with the cable between the TV and 

 

AVR, and continuing with the cables between the AVR and each source 
device. 

Carefully reconnect the cables from the source devices to the AVR. 

 

Connect the cable from the AVR to the TV last.

Turn on the devices in this order: TV, AVR, source devices.

 

Harman Kardon

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32

OPERATION

To select the AVR 760/AVR 660’s built-in tuner:

Press the Source List Button on the front panel. Use the 

1. 

KL

 Buttons to 

scroll to the desired tuner band. 

Press the Radio Source Selector on the remote. Press it again to switch 

2. 

bands (AM or FM).

A screen similar to the one shown in Figure 25 will appear. 

Figure 25 – FM Radio

Use the 

KL

 Buttons or the Channel Control to tune a station, as displayed 

on the front panel and on screen. 

The AVR defaults to automatic tuning, meaning each press of the 

KL

 

Buttons scans through all frequencies until a station with acceptable signal 
strength is found. To switch to manual tuning, in which each press of the 

KL

 Buttons steps through a single frequency increment (0.1MHz for FM, or 

10kHz for AM), press the Menu Button. The Mode line will display the current 
setting. Each press of the OK Button toggles between automatic and manual 
tuning modes. 

When an FM station has been tuned, toggling the tuning mode also switches 
between stereo and monaural play, which may improve reception of weaker 
stations.

A total of 30 stations (AM and FM together) may be stored as presets. When 
the desired station has been tuned, press the OK Button, and two dashes 
will flash in the front-panel display. Use the Alphanumeric Keys to enter the 
desired preset number.

To tune a preset station, press the 

M N

 Buttons or the 

I J

 Transport 

Controls, or press the Menu Button and scroll to the desired preset, then 
press the OK Button; or enter the preset number using the Numeric Keys. For 
presets 10 through 30, press 0 before the preset number. For example, to 
enter preset 21, press 0-2-1.

The AVR 760/AVR 660 is equipped with RDS (Radio Data System), which 
brings a wide range of information to FM radio. Now in use in many countries, 
RDS is a system for transmitting station call signs or network information, 
a description of station program type, text messages about the station or 
specifics of a musical selection, and the correct time.

As more FM stations become equipped with RDS capabilities, the AVR will 
serve as an easy-to-use center for both information and entertainment. This 
section will help you take maximum advantage of the RDS system.

When an FM station is tuned in and it contains RDS data, the AVR will 
automatically display the station’s call sign or other program service in the 
Message Display and on the tv screen if this is on.

The RDS system is capable of transmitting a wide variety of information 
in addition to the  initial station call sign that appears when a  station is 
first tuned. In normal RDS operation the display will indicate the station 
name, broadcast network or call letters. Pressing the  Play Button 

B

 on the 

Remote enables you to cycle through the various data types in the following 
sequence:

The station’s call letters (PS) (with some private  stations other information 

 

too).

The station’s frequency (FREQ  MODE), which is always shown on the TV 

 

On-Screen Display, is shown in the Message Display.

The Program Type (PTY).

 

NOTE: Many stations do not transmit a specific PTY. The display will show 
NONE, when such a station is selected and PTY is active.

A “text” message (Radiotext, RT) containing special information from the 

 

broadcast station. Note that this message may scroll across the  display to 
permit messages longer than the eight positions in the display. Radiotext 
is not shown on the TV On-Screen Display.

The current time of day (CT). Note that it may take up to two minutes 

 

for the time to appear, in that time the letters CT are shown in the 
information display when CT is selected. Please note that the accuracy of 
the time data is dependent on the radio station, not the AVR.

Some RDS stations may not include some of these additional features. If the 
data required for the selected mode is not being transmitted, the Message 
Display will show a NO  TYPE, NO  TEXT or NO  TIME message after the 
individual time out.

In any FM mode the RDS function requires a strong enough signal for proper 
operation.

An important feature of RDS is its capability of encoding broadcasts with 
Program Type (PTY) codes that indicate the type of material being broadcast. 

You may search for a specific Program Type (PTY) by following these steps:

Press the Play button 

1. 

B

 until the current PTY is shown in the Main 

Information Display.

While the PTY is shown, press the CH/Page Up/Down or the 

2. 

M N

 Buttons 

or hold them pressed to scroll through the list of available PTY types, as 
shown above starting with the PTY currently received.

Press either of the 

3. 

KL

 Buttons. The tuner begins to scan the FM band 

upwards or downwards for the first station that has RDS data that 
matches the desired selection, and acceptable signal strength for quality 
reception.

The tuner will make up to one complete scan of the entire FM band for 

4. 

the next station that matches the desired PTY type and has acceptable 
reception quality. If no such station is found, the display will read NONE 
for some seconds and the tuner will return to the last FM station in use 
before the search.

AVR 660 -760, 230V Service Manual

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33

OPERATION

To enjoy audio and still-image playback of media stored on a USB flash drive, 
connect the drive to the front-panel USB Port and select the USB source on 
the AVR. Press the Menu Button and select “Browse USB”. The AVR will list the 
folders and files of audio and still-image content. Do not connect a personal 
computer or peripheral to the USB Port. USB hubs and multi-card readers are 
not supported.

IMPORTANT NOTE: The AVR 760/AVR 660’s internal processor requires 
about 10 seconds to detect, recognize and connect to a USB device. Please 
wait 10 seconds after inserting a device or switching the USB source before 
attempting to browse the device. If you try to browse the device sooner, 
the AVR may not display the device’s contents correctly in the on-screen 
slide-in menu. If that happens, remove the device and reinsert it into the 
USB Port, then wait 10 seconds before browsing. Always stop playback 
before removing a USB drive, and wait at least 10 seconds before inserting 
another drive.

To expand a folder, press the OK Button or the 

 

N

 Navigation Button. 

To collapse a folder or return to the previous menu level, press the Back/

 

Exit Button or the 

M

 Button. 

To play all audio or still-image files within a folder, select the folder and 

 

press the OK Button or the Play Button.

To skip to the next track or image, press the 

 

N

 Navigation Button.

To return to the beginning of the current track, press the 

 

M

 Button once; 

to return to the previous track, press the 

M

 Button twice. When displaying 

images, pressing the 

M

 Button returns to the previous image.

The Transport Controls may be used to control playback for skipping to 

 

the previous or next track, searching at high speed forward or backward 
within a track, playing a file, pausing playback or stopping playback.

To repeat a file or folder, press the Menu Button and select the Repeat 

 

option. Each press of the OK Button will change the setting from Off (no 
repeat) to Repeat One (file) to Repeat All (files at the current directory 
level of the drive). Repeat All will always be activated when Random 
Music playback is turned on.

To play the audio tracks in random order, press the Menu Button and 

 

select the Random Music setting. Each press of the OK Button turns 
the setting on or off. The AVR will automatically repeat the tracks until 
playback is stopped manually.

To view the still images in random order, press the Menu Button and 

 

select the Random Photos setting. Each press of the OK Button turns the 
setting on or off.

To view a slideshow of images, select a folder containing the images 

 

for playback. You may also select audio files stored on the same device 
for playback as background music to the slideshow. Select the audio 
file, then the image files. 

When both music and a slideshow are playing, if the slide-in menu 

 

is not displayed, press the 

M N

 Buttons to skip to the next picture or 

return to the previous picture. When the slide-in menu is displayed, 
press the 

M N

 Buttons to skip to the next or previous audio track.

While an image is being displayed, each press of the 

 

K

 Button rotates 

the image 90º clockwise, and each press of the 

L

 Button rotates the 

image 90º counterclockwise.

To change the duration of each image on screen during a slideshow, 

 

press the Menu Button and select the Slideshow Speed setting. Each 
press of the OK Button changes the speed: Slow, Medium or Fast.

With its network connection, the AVR 760/AVR 660 opens a world of 
MP3- and WMA-format streams when Internet access is available. Connect 
the RJ-45 Network jack on the AVR to an Ethernet port on a home-network 
router. Turn on the AVR and the video display, and press the Network Selector 
on the remote. Each press toggles between the Network Now Playing and 
Internet Radio screens.

With the Internet Radio screen displayed, the AVR will automatically connect 
to the Internet via the www.radioharmankardon.com portal. To select a 
stream, press the Menu Button, and use the 

KL

 Buttons to search by 

category: Presets, Favourites, Location, Genre, New Stations, Most Popular or 
Podcasts.

To create a Favourites list, log onto www.radioharmankardon.com from your 
PC. Enter the ID # of your AVR 760/AVR 660 (found by pressing the Menu 
Button and selecting “Network Setup”) and create an account. Favourites that 
you select on the Web site will be available on the AVR.

Navigation is similar to other slide-in menus. Scroll to the desired item and 
press the OK Button or the 

N

 Button to select it. To return to the previous 

menu level (or to clear the menu from view from the top level), press the 
Back/Exit Button or the 

M

 Button.

If you know the URL (Uniform Resource Locator, or Web address) of a specific 
audio stream, select the Direct Station option from the menu. The AVR 760/
AVR 660 is not able to connect to streams that require site registration or 
other interaction prior to playing the stream. A live stream is required. If the 
AVR cannot connect to the stream, the “Station Not Live” message will appear 
briefly, and the Internet Radio screen will remain essentially blank. Not all 
URLs will be accessible.

Up to 30 preset Internet Radio stations may be programmed. To set a preset, 
first tune the station. Press the OK Button, and two dashes will flash. Enter 
the preset number using the Alphanumeric Keys. The connection to the 
station will momentarily stop, interrupting the program, and the AVR will 
reconnect to the station.

To connect to a station programmed as a preset, enter its preset number 
using the Alphanumeric Keys, or select from the previously programmed 
presets using the 

M N

 Buttons.

NOTES ON NETWORK SETUP: 

It is recommended that the AVR be connected to a home-network 

 

router so that it can directly access the Internet for Internet Radio, or 
access a PC on the network for playback of content stored on the PC (see 
the Network Playback section below).

If you are unable to connect to the Internet, try adjusting the network 

 

settings. Press the Menu Button and select Network Setup. The Network 
Settings line will be highlighted. Each press of the OK Button toggles 
between Manual and Automatic network setup. Select Manual, and 
the other network settings will be displayed: IP Address, Subnet Mask, 
Gateway, Primary DNS, Secondary DNS, Proxy Address and Proxy Port. 
Contact your ISP (Internet Service Provider) for the correct information 
to enter into these settings. To change a setting, highlight it and press 
the OK Button. Use the 

KL

 Buttons to move the cursor from one 

position to the next, and scroll to the desired number using the 

M N

 

Buttons. Press the OK Button when you are finished with an entry. Scroll 
down to the “Apply and Save” Button and select it. The AVR will turn off 
and must be powered back on. To return to the previous menu screen, 
press the Back/Exit Button.

Harman Kardon

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