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On Screen Display

27

The following functions of the AVR80
may be controlled through the Menu
Control System:

INPUT SELECTION

: After reaching

the 

INPUT SELECTOR

menu

(Figure #13), use the arrow keys on the
remote 

q

to select the desired input.

Remember that when a split listening
session is desired, select the 

VIDEO

source first, followed by the 

AUDIO

source. To use the Tape Monitor, press
the down arrow button 

¤

q

to move

the on-screen cursor. Use the  

‹

and 

›

arrow buttons to turn the Tape Monitor
On or Off.

RECORD OUT SELECTION

: After

reaching the 

REC OUT SELECTOR

menu (Figure #14) use the navigational
arrow keys to select the record source for
either 

TAPE 1

or 

VCR 1

. Note that if

the current main input 

SOURCE

is

chosen, two more lines will appear on the
screen to remind you which audio and
video sources are selected (Figure #15).
The 

RECORD OUT SELECTION

effects the same as the ‘Copy’
Pushbuttons 

 Ò

on the front panel.

SURROUND MODE

: After reaching 

the 

SURROUND MODE

menu (Figure

#16), use the navigational arrows 

q

to

select the desired mode. When a mode is
selected that uses the surround channels,
you may change the rear channel

DELAY TIME

at this menu. 

TEST TONE

: At this menu you may

adjust the speaker output levels. For
information on this procedure, refer to
the System Configuration section of this
Manual, page 18.

MULTI-ROOM SEL

: For information

on configuring and using the multiroom
audio functions of the AVR80, consult the
appropriate section of this Manual, page
32.

SET UP MENU

: For information on

using the Set Up menus, refer to the
System Configuration section of this
Manual.

    > T A P E   * S O U R C E *

      V C R 1   * S O U R C E *

      A U D I O   * T U N E R *

     

      V I D E O   * L D *

R E T U R N   T O   M A I N   M E N U

R E C   O U T   S E L E C T O R

  > M O D E   : T H X   C I N E M A

    D E L A Y   T I M E   : 2 0 m s

R E T U R N   T O   M A I N   M E N U

S U R R O U N D   M O D E

AVR80 manual  11/01/98 13:01  Side 27

Advanced Features

28

In addition to basic audio functions, this
receiver is capable of both sophisticated
audio/video dubbing and a wide range of
surround modes. Advanced digital signal
processing provides specialized surround
modes that are compatible with virtually
all types of music software and movie
soundtracks. 

For the ultimate in sound reproduction,
the AVR80 is equipped for digital input
from laser disc or CD players with a
coaxial digital output, so that the sound
reaching the surround processor comes
directly from the disc. 

Finally, the AVR80 is prepared for the
future with provisions for connection to
outboard multi channel (AC-3 and DTS)
digital audio decoders. 

Audio Tape Copy
This receiver is equipped for connection 
to two audio recorders (

and

) and two video recorders

(

and 

). 

For recordings to the audio tape deck or
other devices connected to 

,

record sources separate from the current
source may be performed by pressing the

button 



on the front

panel. 

At the first press of the button, a status
display will appear on both the front
panel display and the on screen video
menus (Figure #8) to remind you which
input is being routed to the 

outputs. If  

SOURCE

is displayed as

record input, the currently selected input
is recorded to both  

and 

. 

To record a source other than the current
input, press the 

button to

change the 

record source in the

following order:

SOURCE‡ FM/AM TUNER‡

CD ‡ TAPE 2 ‡ SOURCE

NOTE: Fundamentally the control system
is programmed to prevent recording from
a machine onto itself. That´s why

will not appear in the 

selection list.

Press the button until the input you wish
to record appears. You may now change
the main listening input without fear of
disturbing the recording as long as the
unit’s power remains on.

NOTE: It is not possible to select one of
the video inputs (

, 

, 

,

) as a direct recording source. To

make an audio recording of these sources
select one as the main input source, and
then use the 

button 



to

select 

SOURCE

. 

Input sources for being recorded to

may also be selected using the

REC OUT SELECTOR

of the on screen

video menu system. Follow the
instructions in this Manual, page 28.

Video Copy
Video Copy is similar to that for audio
recording, with changes to accommodate
the requirements of recording both an
audio and video source. As with 

recording it is important to note that the
output to 

only is selected with the

front panel switch. The output to 

is always set to the current input source.
(Unless that Source is 

, in which

case the 

record output is blank.)

To select inputs for VCR dubbing use the

button 

Ò

on the front

panel.

At the first press of the button, a status
display will appear on both the front
panel display and the on screen video
menus (Figure #8) to remind you which
input source is being routed to the 

output. If SOURCE is displayed, the
currently selected source is recorded to
both 

and 

. 

To record a source other than the current
input, press the 

button

again, and note that the display will
change in the following order:

SOURCE ‡ TV ‡ LD ‡

VCR 2 ‡ AUX ‡ SOURCE

Press the button until the input you wish
to record appears. You may now change
the main Audio/Video input without fear
of disturbing the recording as long as the
unit’s power remains on.

Input sources for 

dubbing

may also be made using the on screen
video menu system.

Audio/Video Simulcast Recording
It is possible to record the video from one
source along with the audio from a
different input. This is useful in the case
of musical programs where the sound is
being broadcast via FM, or for sports
events where you wish to have the picture
from a TV station, but the play-by-play
from a radio station.

AVR80 manual  11/01/98 13:01  Side 28

Advanced Features

29

To create a simulcast recording first select
the video source input (

, 

, 

,

) using the input selection buttons

on the remote control or front panel.

78c

Next, select the audio source

(

, 

or 

) 

346

.

Note that the on screen menu display will
show the split sources (Figure # 7). The
front panel display will show the audio
source in large letters in the main portion
of the Information Display, while the
video source will appear in smaller letters
next to the 

VISUAL

¡

indicator. Once

the split source is configured, select

as the input for VCR1 by

pressing the 

button 

Ò

on

front.

Delay Time Adjust
One aspect of the surround modes is the
delay of audio signals between the front
speakers and the rear speakers. Each
surround mode is factory preset with a
specific delay time, but it is possible to
individually adjust the delay timing to
custom tailor the sound to your
individual taste and the acoustic
conditions in your listening room or
home theater. 

The factory setting is appropriate for most
rooms, but some installations create an
uncommon distance between the front
and surround speakers that may cause
the arrival of front channel sounds to
become disconnected from surround
channel sounds.

To re-synchronize the front and surround
channels, follow these steps:

1. Measure the distance from the
listening/viewing position to the front
speakers (in meters).

2. Measure the distance from the
listening/viewing position to the
surround speakers. 

3. Subtract the distance to the
surround speakers from the distance
to the front speakers and add 5.
Multiply the result with 3, the
resulting number is the ideal delay
time (in ms) for your room. For
example, if the front speakers are 7 m
away and the surround speakers are 
2 m away, the formula will be
(7–2+5)x3 =30. Thus, the correct
delay time in this room would be
30ms.

NOTE: The delay time may only be
adjusted in certain modes.

If the delay time needs to be changed, 
it may be increased by pressing the

button 

@ p

on the front

panel. The delay time will be briefly 
displayed on the video menus as well as
the front panel.

In addition to the use of the delay time
formula, it is a good idea to understand
the features of each of the AVR80’s
surround modes when entering delay
time. The chart on a following page
provides an explanation of the suggested
for each mode. The chart also contains
the delay time limits for each of the
modes.

Direct Digital Decoding
The AVR80’s digital signal processing
uses sophisticated microprocessors and
advanced digital audio engines that
manipulate sound in the digital domain.
In order to work with sound, these
circuits must first convert the incoming
analog audio input to a digital signal.
After processing, the digital audio signal
must be converted back to analog for
volume control and amplification.

While the digital to analog (D/A) and
analog to digital (A/D) circuits in the
AVR80 are high quality, any time an
audio signal is digitized or reconstructed
to analog there is the possibility of quality
loss. Thus the Direct Digital input of the
AVR 80 helps you to avoid un-needed A/D
and D/A conversion at least in Surround
modes from any laser disc player
equipped with a coaxial
digital output.

If your player has this type of output,
connect the LD player to the AVR80 with
a high quality digital interconnect (110
ohm cable with RCA plugs). The
connection should be made to the 

jack 

S

on the rear panel. 

AVR80 manual  11/01/98 13:01  Side 29

Advanced Features

30

Once this connection is made, the AVR80
will accept the digital output directly
from your LD or CD player, no matter if
any Surround mode is selected or pure
Stereo mode. To select the direct digital
input, press the LD button 

7c

and

hold it for three seconds. This means that
audio signals will remain in their pure
digital state until after all surround
processing or after the (only) D/A
conversion in Stereo mode has taken
place.

NOTE: This connection is for standard
two channel 44.1 kHz PCM digital audio,
as provided by LD or CD machines. It is
NOT an input for multichannel digital
audio signals such AC-3 or DTS. Improper
connection to the wrong type of digital
output may cause damage to the AVR80
or other components in your audio system
and are not covered by the AVR80
warranty. Consult your dealer or installer
if you have any questions about this input.

6 Channel Direct Operation
Since 1993, an increasing number of
theatrical motion pictures have been
recorded with digital sound tracks. 
With these new processes such as Dolby
Surround Digital

™

(AC-3), DTS

®

and

Sony’s SDDS

®

, five or more discrete sound 

channels are available along with a
dedicated subwoofer channel for low
frequency sounds. The replacement of
analog matrix theatrical audio, such as
Dolby Stereo with these new systems has
greatly increased the enjoyment of movie
sound.

Advances in electronics technology now
make it possible to bring these discrete
digital audio soundtracks into your
home. Many of today’s new LD players
and an increasing number of LD movie
releases provide for Dolby AC-3 Digital
soundtracks. In the future, high
definition television (HDTV) broadcasts
will also carry multichannel digital audio
information.

To prevent your AVR80 from
obsolescence, special jacks are provided
for use with external multichannel audio
adapters. 

If an adapter is installed in your system,
connect its six analog audio outputs to
the 

jacks 

ø

on

the AVR80’s rear panel. 

When listening to programs using
an external adapter, press the

button

Ô

on the front panel.

All surround processing will be disabled
when 6 Channel Direct is in use, as
none is required with discrete audio
signals. Volume is controlled in the
normal fashion.

NOTE: Audio reproduced from the 6
Channel Direct inputs may not be
recorded via the AVR80.

AVR80 manual  11/01/98 13:01  Side 30