Manual Harman Kardon AVR 4000 (page 24 of 58) (English)

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24 SYSTEM CONFIGURATION

System Configuration

and the surround speakers are 1 m away, the

optimal delay time is figured as

(3–1)x3+15=21.Thus, in this example, the

Pro Logic delay should be set at twenty mil-

liseconds.

NOTE: The DTS, Logic 7, 5CH Stereo, Hall and

Theater modes use a fixed, nonadjustable delay

time.

The Dolby Digital Mode also includes a separate

setting for the center channel delay mode, since

the discrete nature of these signals makes the

location of the center channel speaker more crit-

ical. To calculate the delay for the center chan-

nel, measure the distance from the preferred lis-

tening position in the center of the room to both

the center channel speaker and either the left or

right speaker.

If the distances are equal, no further adjustment

is required and the center delay should be set to

zero. If the distance to the front speakers is

greater than the distance to the center speaker,

you may wish to reposition the speakers by mov-

ing the front left and front right speakers closer

to the listening position or the center speaker

further away from the listening position.

If repositioning of the speakers is not possible,

adjust the center delay time, adding one milli-

second of center channel delay for every 30 cm

closer to the listening position the center speak-

er is than the front speakers. For example, if the

front left and front right speakers are each 3 m

from the listening position and the center chan-

nel speaker is 2.4 m away, the delay is figured as

300 cm –240 cm=60 cm, suggesting an optimal

center delay of 2 milliseconds.

To set the delay time, continue within the

MASTER MENU (Figure 1). If the system

is not already at that point, press the OSD but-

ton

to bring up the master menu.To make

the delay settings for the Dolby Digital mode

(this will include the Center delay setting, and

the surround delay for the Pro Logic mode will

be set automatically), press the Set

button

and select any input now that is associated with

a digital input and the Dolby Digital surround

mode (the surround mode associated with each

input selected will be indicated by the

Surround Mode Indicators

in the front

panel), then return to the master menu. Press

the

¤ button

and then the Set button

to bring up the surround setup menu, now press

the

¤ button

once.

As the Dolby Digital mode is selected, the

› cur-

sor will stop at the CENTER DELAY

line. Press the

‹/› buttons

until the

number calgulated using the formula shown

above appears in the disply. When the

CENTER DELAY is entered, press the

button

once to move to the SURR

DELAY line so that the delay for the sur-

round speakers may be set. Press the

‹/› but-

tons

until the desired figure appears in

the display, using the number calculated using

the formula shown above for the Dolby Digital

surround mode (item 3a). When the delay set-

tings are complete, press the

¤ button

once to move to the next line.

Note that the delay settings may also be adjust-

ed at any time when the Dolby Digital or Dolby

Pro Logic modes are in use by pressing the

Delay button on the front panel

or remote

, followed by a press of the Set button

Next, press the

⁄/¤ buttons n on the remote

er the Selector buttons

on the front panel

until the desired figure appears in the Main

Information Display

Night Mode Settings

The Night mode is a feature of Dolby Digital that

uses special processing to preserve the dynamic

range and full intelligibility of a movie sound

track while reducing the peak level.This prevents

abruptly loud transitions from disturbing others,

without reducing the sonic impact of a digital

source. Note that the Night mode is only avail-

able when Dolby Digital signals are played.

To adjust the Night mode setting from the

menu, make certain that the

› cursor is on the

Night line of the SURROUND SETUP

menu. Next, press

‹/› buttons

choose between the following settings.

OFF: When OFF is in the highlighted video,

the Night mode will not function.

MID: When MID is in the highlighted video, a

mild compression will be applied.

MAX: When MAX is in the highlighted video, a

more severe compression algorithm will be

applied.

We recommend that you select the MID setting

as a starting point and change to the MAX set-

ting later, if desired.

Note that the Night mode may be adjusted

directly any time that a Dolby Digital source is

playing by pressing the Night button

When the button is pressed, the words

D-RANGE will appear in the lower third of

the video screen and in the Main Information

Display Y. Press the

⁄/¤ button

within

three seconds to select the desired setting, then

press Set

to confirm the setting.

When all settings for the surround setup have

been made, press the

⁄/¤ buttons

so that

the

› cursor is next to RETURN TO

MENU, and press the Set button

return to the master menu.

Output Level Adjustment

Output level adjustment is a key part of the con-

figuration process for any surround sound prod-

uct. It is particularly important for a Dolby Digital

receiver such as the AVR 4000, as correct out-

puts will ensure that you hear sound tracks with

the proper directionality and intensity.

NOTE: Listeners are often confused about the

operation of the surround channels. While some

assume that sound should always be coming

from each speaker, most of the time there will

be little or no sound in the surround channels.

This is because they are only used when a

movie director or sound mixer specifically places

sound there to create ambiance, a special effect

or to continue action from the front of the room

to the rear.When the output levels are properly

set it is normal for surround speakers to oper-

ate only occasionally. Artificially increasing the

volume to the rear speakers may destroy the

illusion of an enveloping sound field that dupli-

cates the way you hear sound in a movie the-

ater or concert hall.

IMPORTANT NOTE: The output level can be

adjusted for each digital and analog surround

mode separately. This allows you to compensate

for level differences between speakers, that may

also vary with the surround mode selected, or to

increase or decrease the level of certain speakers

intentionally, depending on the surround mode

selected.

Before beginning the output level adjustment

process, make certain that all speaker connec-

tions have been properly made. The system

volume should be turned down at first. Finally,

make certain that the Balance Control

set to the center “12 o’clock” position.

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