AVR 75 (serv.man3) - Harman Kardon Audio User Guide / Operation Manual. Page 23

Basic Operation

Once the input source, speaker and
antenna connections have been made,
and the system has been configured, the
receiver is ready for operation. Note that
some controls are duplicated on both the
front panel and the remote control, while
others appear on one or the other, but not
both.

Power Switch
To turn the AVR75 on for the first time,
press the front panel

button

1

.

When you press the 

button note

that the LED indicator surrounding the
switch will momentarily turn red, then
green indicating that the unit has been
turned on. If the unit is connected to a TV
set a brief status report (see figure #6) of
the AVR75’s settings will momentarily
appear.

Once the unit has been turned on with
the front panel switch it may then be
placed in a Standby mode for future use
using the 

c 

button

on the remote. Note that the remote
power will NOT operate unless the

button has first been manually

depressed.

When the AVR75 is turned off using 
the remote control it is placed in a
STANDBY mode, and the Standby LED
surrounding the 

switch will

illuminate in amber. The AVR75 may 
be turned on by pressing either the 

button 

c

or any of

the 

buttons on the front panel

24578)!

.

NOTE: When the AVR75 is in the Standby
mode, and the amber LED around the

switch is illuminated, it is NOT

disconnected from the AC main power.

To turn the AVR75 totally off, press and
release the 

button

1

until the

LED surrounding the switch goes out.

Source Selection
To select or change the input source,
press one of the 

buttons on 

the front panel 

24578)!

or one of the 

buttons on the

remote 

d

. 

Each time the source is changed a
message (see figure #7) will appear
briefly if the on-screen display is activated
confirming the new selection.

To listen to one source while you watch
another, first select the video source, and
then select the desired audio source. 

NOTE: When the unit is in “Standby”
mode, pressing any of the source buttons
will turn on the unit.

The video source will be shown next to
the word 

in the 

P

in the 

ı

. The audio source, which

may be the same or different than the
video source will always be shown in the

J

.

Volume Control
The AVR75’s volume is controlled using
either the front panel 

knob 

Ù

or the 

buttons 

o

on the

remote. 

If the volume control is set too high, 
a speaker overload may activate the
unit’s protective circuitry. This will cut
the output to the speakers and change
the LED surrounding the power switch 
to a red color. To clear the problem, turn
the unit off for a few seconds, and lower
the volume before turning it back on. If
the problem re-occurs, turn the unit off
and consult your dealer or an authorized
service center for advice.

NOTE: Unlike conventional mechanically
driven volume controls, this receiver’s
volume is set using digital devices. This
means that the volume knob has no firm
stopping point at either end of its rotation.
Depending on the speed with which the
knob is turned, it is normal for as many
as three complete rotations to be required
for full travel from the loudest setting to
the softest.

When the volume is adjusted the change
will be indicated by an on-screen display
(see figure #8). The word 

MASTER

will

also appear in the main portion of the

ı

, followed by 

a two-digit number. The number indi-
cates the variation from the reference
point established when the output levels
are set. 

Surround Mode Selection
One of the most important features of 
the AVR75 is its ability to reproduce a full
multichannel surround soundfield from
Dolby Digital sources, analog matrix 
surround encoded programs, and stan-
dard stereo programs. In all a total of
seven listening modes are available.

Selection of a surround mode is based 
on personal taste, as well as the type of
program source material being used. 
For example, motion pictures bearing
the logo of one of the major surround
encoding processes, such as Dolby
Digital, Dolby Surround, DTS

†

Stereo or

UltraStereo

††

may be played in either the

Dolby Digital, Dolby Pro Logic or Movie
Surround depending on the source
material. TV or radio broadcasts of
programs in surround should normally
be played back in the Dolby Pro Logic or
Movie Surround modes. Other mode
selections are described elsewhere in 
this manual.

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AVR75 120   rev (c) 8/27/97

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