Manual Harman Kardon AVR645 (page 44 of 68) (English)

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44 OPERATION

Operation

In addition, you will need to have a media player

installed on the computer. The AVR has been

tested for operation with Windows Media Player

Version 8.0 and above, but it is also compatible

with many other popular players such as iTunes

WinAmp

and Real Player

. In most cases, it is

best to always make certain that you have the

latest version of the player installed to ensure the

best compatibility.

When the connection between a computer and

the AVR is made for the first time, or if the USB

connection is plugged into a different USB jack

on a computer or hub that has not been

previously connected to the AVR, you will see a

series of pop-up messages from Windows to

indicate that the computer is configuring itself

for the new device. Since the AVR provides a

number of different functions, you may see the

“Found New Hardware” message up to four

times, one each for “A/V Receiver,” “Compatible

Device,” “Audio Receiver” and “Human Interface

Device.” When all messages have appeared and

then cleared the screen, you are almost ready to

begin.

Before selecting the USB input, first make certain

that one of the media players listed above has

been opened on the computer. Then you may

select the USB input in any of the following

ways:

• To select USB as a source from the front panel,

press the Input Source Selector Button

until USB appears as the input name in the

Upper Display Line

and in the semi-OSD

display, if available. The USB Input Source

Indicator

will also light up on the front

panel.

• To select USB as the input using the main

remote press the Input Selector

with

DMP printed on the button twice.

• To select USB as an input using the ZR 10

remote, press the USB Input Selector D.

When the USB input is selected and the AVR is

connected to a compatible computer with one of

the media players mentioned above open, you

may then use either remote's transport controls

to start and stop playback, as well as move to

the next track. Activity of the Transport buttons

may vary from one media player to another, but

at the very least you will be able to use the Play

and Stop buttons. You may also control the

media player on a connected computer using the

Transport Controls P on the ZR 10 remote.

Once playback is started, the audio from a USB

source is treated the same as any other two-

channel audio source, and you may apply any of

the appropriate surround processing modes.

When playing back audio from a computer via

the USB connection, the internal speakers in a

laptop computer are often muted.

Speaker/Channel Indicators

In addition to the Bitstream Indicators, the

AVR features a set of unique channel-input

indicators that tell you how many channels of

digital information are being received and/or

whether the digital signal is interrupted.

These indicators are the L/C/R/LFE/SL/SR/SBL/SBR

letters that are inside the center boxes of the

Speaker/Channel Input Indicators

in the

front panel Main Information Display

When a standard analog stereo or matrix

surround signal is in use, only the “L” and “R”

indicators will light, as analog signals have only

left and right channels.

Digital signals, however, may have one, two, five,

six or seven separate channels, depending on the

program material, the method of transmission

and the way in which it was encoded. When a

digital signal is playing, the letters in these

indicators will light in response to the specific

signal being received. It is important to note that

although Dolby Digital, for example, is referred to

as a “5.1” system, not all Dolby Digital DVDs or

audio tracks selected on DVD or other Dolby

Digital programs are encoded for 5.1. Thus, it is

sometimes normal for a DVD with a Dolby Digital

soundtrack to trigger only the “L” and “R”

indicators.

NOTE: Many DVD discs are recorded with both

“5.1” and “2.0” versions of the same sound-

track. When playing a DVD, always be certain to

check the type of material on the disc. Most discs

show this information in the form of a listing or

icon on the back of the disc jacket. When a disc

does offer multiple soundtrack choices, you may

have to make some adjustments to your DVD

player (usually with the “Audio Select” button or

in a menu screen on the disc) to send a full 5.1

feed to the AVR or to select the appropriate

audio track and thus language. It is also possible

for the type of signal feed to change during the

course of a DVD playback. In some cases the pre-

views of special material will only be recorded in

2.0 audio, while the main feature is available in

5.1 audio. As long as your DVD player is set for

6-channel output, the AVR will automatically

sense changes to the bitstream and channel

count and reflect them in these indicators.

Important Note: When a digital surround

source (Dolby Digital, DTS) is played, the letters

SBL/SBR for the Surround Back channels will

appear only when a DTS ES DISCRETE 6.1 source

is played. Then this surround mode will be

indicated in the front display and on-screen

display. With all other recordings the icons for the

surround back speakers may light (when those

speakers have been configured) to indicate that a

signal will be fed to them (Matrix decoded with

NEO:6, LOGIC 7 or 7 CH Stereo), but no letters

inside will light as the unit will not receive an

input signal for the surround back channels.

The letters used by the Speaker/Channel Input

Indicators

also flash to indicate when a bit-

stream has been interrupted. This will happen

when a digital input source is selected before the

playback starts, or when a digital source such as

a DVD is put into a Pause mode. The flashing

indicators remind you that the playback has

stopped due to the absence of a digital signal

and not through any fault of the AVR. This is

normal, and the digital playback will resume

once the playback is started again.

Night Mode

A special feature of Dolby Digital is the Night

mode, which enables Dolby Digital input sources

to be played back with full digital intelligibilty

while reducing the maximum peak level and

lifting the low levels by

1/4 to 1/3. This prevents

abruptly loud transitions from disturbing others

without reducing the impact of the digital source.

The Night mode is available only when the Dolby

Digital mode is selected.

The Night mode may be engaged when a Dolby

Digital DVD is playing by pressing the Night

Button

on the remote. Next, press the

⁄

buttons

to select either the middle range or

full compression versions of the Night mode. To

turn the Night mode off, press the

⁄

buttons

until the message in the lower third of the

video display and the Lower Display Line

reads D-RANGE OFF.

The Night mode may also be selected to always

be on as soon as the Dolby Digital mode is

activated at either level of compression using the

options in the

Surround Select menu.

See page 27 for information on using the menus

to set this option.

29851_AVR645_ENG 30/10/06 9:46 Side 44

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