Manual Harman Kardon AVR 4000 (page 29 of 58) (English)

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OPERATION 29

Operation

Surround Mode Selection

One of the most important features of the

AVR 4000 is its ability to reproduce a full multi-

channel surround sound field from digital

sources, analog matrix surround encoded pro-

grams and standard stereo or even mono pro-

grams. In all, a total of thirteen listening modes

are available on the AVR 4000.

Selection of a surround mode is based on personal

taste, as well as the type of program source mate-

rial being used. For example, motion pictures or TV

programs bearing the logo of one of the major

surround encoding processes, such as Dolby

Surround, DTS Stereo or UltraStereo

††

should be

played in either the Dolby 3 Stereo or Dolby Pro

Logic surround modes depending on the source

material and speakers in use.

However to create wider, enveloping sound field

environments and more defined pans and

flyovers with all analog stereo and surround

recordings select Harman Kardon’s exclusive

Logic 7 mode, that creates a stereophonic left

and right rear signal, just as recorded in real life

(e.g. sound being recorded from left rear side will

be heard from that side only) for a dramatic

improvement in comparison to Dolby Pro Logic.

NOTE: Once a program has been encoded with

matrix surround information, it retains the sur-

round information as long as the program is

broadcast in stereo. Thus, movies with surround

sound may be decoded via any of the analog sur-

round modes such as Pro Logic or Logic 7, when

they are broadcast via conventional TV stations,

cable, pay TV and satellite transmission. In addi-

tion, a growing number of made-for-television

programs, sports broadcasts, radio dramas and

music CDs are also recorded in surround sound.

You may view a list of these programs at the Dolby

Laboratories Web site at www.dolby.com.

Even when a program is not listed as carrying

intentional surround information, you may find

that the Pro Logic, Dolby 3 Stereo or Logic 7

modes often deliver enveloping surround presen-

tations through the use of the natural surround

information present in all stereo recordings.

However, for stereo programs without any sur-

round information the Theater, Hall and 5CH

Stereo modes should be tried (5CH Stereo is effec-

tive particularly with old ”extreme” stereo record-

ings) and for mono programs, we suggest that you

try the Theater or Hall modes.And when you use

only two front channel speakers you should select

Harman’s patented VMAx mode, delivering a virtu-

ally three dimensional sound space with two

speakers only.

Surround modes are selected using either the

front panel controls or the remote. To select a

surround mode from the front panel, press the

Surround Mode Selector

to scroll through

the list of available modes. To select a surround

mode using the remote, press the Surround

Mode Selector

, and then press the

⁄

buttons

to change the mode. As you press

the buttons, the Surround mode name will

appear in the Main Information Display

and an individual mode indicator will also light

C D F H I J K L N

. As the sur-

round modes change, a green LED will light next

to the current mode in the Surround Mode

Indicators list

on the front panel.

Note that the Dolby Digital or DTS modes may

only be selected when a digital input is in use. In

addition, when a digital source is present, the

AVR 4000 will automatically select and switch to

the correct mode (Dolby Digital or DTS), regard-

less of the mode that has been previously select-

ed. For more information on selecting digital

sources, see the following section of this manual.

To listen to a program in traditional two channel

stereo, using the front left and front right speak-

ers only (plus the subwoofer if installed and con-

figured), follow the instructions shown above for

using the remote until SURR OFF appears

in the Main Information Display

Digital Audio Playback

Digital audio is a major advancement over past

systems such as Dolby Pro Logic. It delivers five dis-

crete channels: left front, center, right front, left sur-

round and right surround. Each channel reproduces

full frequency range (20Hz to 20kHz) and offers

dramatically improved dynamic range and signifi-

cant improvements to signal-to-noise ratios. In

addition, digital systems have the capability to

deliver an additional channel that is specifically

devoted to low frequency information.This is the

“.1” channel referred to when you see these sys-

tems descibed as “5.1”. The bass channel is sepa-

rate from the other channels, but since it is inten-

tionally bandwidth limited, sound designers have

given it that unique designation.

Dolby Digital

Dolby Digital (originally known as AC-3

) is

a standard part of DVD, and is available on

specially encoded LD discs and satellite broadcasts

and it is a part of the new high-definition television

(HDTV) system.

Note that an optional, external RF demodulator

is required to use the AVR 4000 to listen to the

Dolby Digital sound tracks available on laser

discs. Connect the RF output of the LD player to

the demodulator and then connect the digital

output of the demodulator to the Optical or

Coaxial inputs

RS#%

of the AVR 4000.

No demodulator is required for use with DVD

players or DTS-encoded laser discs.

DTS

DTS is another digital audio system that is capa-

ble of delivering 5.1 audio. Although both DTS

and Dolby Digital are digital, they use different

methods of encoding the signals, and thus they

require different decoding circuits to convert the

digital signals back to analog.

DTS-encoded sound tracks are available on select

DVD and LD discs, as well as on special audio-

only DTS CDs. You may use any LD, DVD or CD

player equipped with a digital output to play

DTS-encoded special audio-only CDs with the

AVR 4000, but DTS-LDs can be played on LD

players and DTS-DVDs on DVD players only. All

that is required is to connect the player’s output

to either the Optical or Coaxial input on the

rear panel

or front panel

In order to listen to DVDs encoded with DTS

sound tracks, the DVD player must be compatible

with the DTS signal as indicated by a DTS logo

on the player’s front panel. Note that early DVD

players may not be able to play DTS- encoded

DVDs. This does not indicate a problem with the

AVR 4000, as some players cannot pass the DTS

signal through to the digital outputs. If you are in

doubt as to the capability of your DVD player to

handle DTS DVDs, consult the player’s owner’s

manual.

PCM Audio Playback

PCM (Pulse Code Modulation) is the non- com-

pressed digital audio system used for compact

discs, Non-Dolby Digital/DTS Laserdiscs and some

special PCM encoded DVDs.The digital circuits in

the AVR 4000 are capable of high quality digital-

to-analog decoding, and they may be connected

directly to the digital audio output of your

CD/DVD or LD player (LD only for PCM or DTS

programs, for Dolby Digital laser discs an RF

adapter is needed, see ”Dolby Digital” above).

Connections may be made to either the Optical

or Coaxial inputs

on the rear panel or the

front panel Digital Inputs

To listen to a PCM digital source, first select the

input for the desired source (e.g., CD) to feed its

video signal (if any) to the TV monitor and to

provide its analog audio signal for recording.

Next press the Digital Select button

and then use the

⁄

buttons

on the

remote, or the Selector buttons

on the front

panel, until the desired choice appears in the

Main Information Display

, then press the

Set button

to confirm the choice.

When a PCM source is playing, the PCM indica-

tor

will light. During PCM playback you may

select any surround mode except Dolby Digital or

DTS.

Playback from PCM sources may also benefit

from the Logic 7. When playing a stereo or sur-

round-encoded PCM source, such as an LD or CD

i need circuit diagram for avr 4000 to repair the safety mood Submitted on 1-1-2023 at 14:31
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