Output Level Adjustment With Source; Dim Function; Memory Backup - Harman Kardon AVR 645 Owner's Manual

Harman-kardon owner's manual audio/videoreceiver avr 645, avr 645
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Operation
Output Level Adjustment
With Source Signals
Normal output level adjustment for the
AVR is established using the test tone, as out-
lined on page 36. In some cases, however, it may
be desirable to adjust the output levels using
program material such as a test disc, or a selec-
tion you are familiar with. Additionally, the out-
put level for the subwoofer and those for the
Stereo modes can only be adjusted using this
procedure. Note that all adjustments made with
any input will be effective with all inputs select-
ed, just as it is the case with the adjustment
using the test tone.
To adjust the output levels using program materi-
al, first select the surround mode for which you
want to trim the speakers (see NOTE below), start
your program material source and set the
reference volume for the front left and front right
channels using the Volume Control
Once the reference level has been set, press the
Ù and note that
Channel Select button
will appear in the Lower
FRONT L LEVEL
Display Line ˜. To change the level, first
@, and then use the
press the Set button
Selector buttons 7$ or the
to raise or lower the level. DO NOT use the
volume control, as this will alter the reference
setting.
Once the change has been made, press the Set
button
@ and then press the Selector but-
tons 7$ or the
buttons
/
¤
the next output channel location that you wish to
adjust. To adjust the subwoofer level, press the
Selector buttons 7$ or the
until
appears in the
WOOFER LEVEL
Main Information Display ˜ or on-screen
display (only available if the subwoofer is turned
on).
@ when the name of
Press the Set button
the desired channel appears in the Main
Information Display ˜ and on-screen
display, and follow the instructions shown above
to adjust the level.
Repeat the procedure as needed until all
channels requiring adjustment have been set.
When all adjustments have been made and no
further adjustments are made for five seconds,
the AVR will return to normal operation.
The channel output may also be adjusted using
the full-OSD on-screen menu system. First, set
the volume to a comfortable listening level using
I. Then, press
the Volume Control ı
the OSD button
to bring up the
(Figure 7). Press the
Button
MENU
¤
times until the on-screen ➞ cursor is next to
the
line. Press the Set
MANUAL SETUP
46 OPERATION
Button
, select the
line and press the Set Button
CHANNEL ADJUST
*
C H A N N E L A D J U S T
F L
: 0 d B
C E N : 0 d B
F R
: 0 d B
S R
: 0 d B
T E S T T O N E : A U T O
L E V E L R E S E T :
C H A D J U S T : G L O B A L
E Z S E T S E T T I N G S :
B A C K T O M A N U A L S E T U P
Figure 22
When the menu appears, the internal test tone
will be turned off. This will allow you to use your
external test disc or other source material as the
test signal. Then, use the
select the channels to be adjusted. At each
channel position use the
change the output level.
I.
Remember, when you are using a disc with test
signal (e.g. pink noise) or an external signal
generator as the source, the goal is to have the
output level at each channel be equal when
heard at the listening position, with any surround
mode selected. When your test source is a
buttons
/
¤
normal disc with music signals, you may adjust
the level for each channel and surround mode as
you prefer, e.g. you may lower the center channel
level when you find it to be too high or increase
the level of the rears when you find it to be too
low with specific surround modes.
to select
If you wish to reset all the levels to their original
factory default of 0dB offset, press the
Buttons
so that the on-screen cursor is
buttons
/
¤
next to the
LEVEL RESET
the
/
Buttons
highlighted. After the levels are reset, resume the
procedure outlined above to reset the levels to
the desired settings. When all adjustments are
done, press the
on-screen ➞ cursor so that it is next to
T O MANUAL SETUP
Set Button
main menu to make other adjustments. If you
have no other adjustments to make, press the
OSD Button
NOTE: The output levels may be separately
trimmed for each digital and analog surround
mode. If you wish to have different trim levels for a
specific mode, select that mode and then follow the
instructions in the steps shown above.
With Stereo modes the adjustment procedure
described above is the only way to trim the out-
put level, e.g. to match the Stereo level with
MASTER
four
other modes.
CHANNEL ADJUST
to activate the
menu (Figure 22).
*
S B R : 0 d B
S B L : 0 d B
S L
: 0 d B
S W 1 : 0 d B
O F F
M A N
O F F
O N
O F F
O N
Buttons
to
/
¤
/
Buttons
to
/
¤
line and press
so that the word
is
O N
Buttons
to move the
/
¤
BACK
and then press the
if you wish to go back to the
to exit the menu system.
EzSet/EQ On/Off
If you wish to turn the filter settings established
by EzSet/EQ on or off to demonstrate the impact
EzSet/EQ has on the sound of your system,
simply press the EzSet/EQ On/Off button
Using this feature does not change the settings;
it merely puts them in or out of the signal path.

Dim Function

Since the AVR will often be used when movies or
other video programming is viewed under low-
light conditions, you may wish to lower the
brightness of the front-panel displays and indica-
tors so that they do not distract from the video
presentation. You may dim the displays using the
menu system, as shown on page 47, or you may
control the brightness directly from the remote.
Simply press the Dim Button
the front panel to half the normal brightness
level; press it again to turn the displays off. Note
that when the displays are dimmed or turned off,
the blue lighting around the Standby/On
Switch 3 will continue to stay lit as a reminder
that the AVR is still turned on.
The accent lighting for the Volume Control ı
will remain at its normal level, rather than dim
when the panel displays are at half brightness.
Note that all changes to the front-panel bright-
ness level are temporary; the displays will return
to full brightness after the AVR is turned off and
then on again. To return the displays to full
brightness without turning the unit off, press the
Dim Button
as needed until the displays
are on.
In addition to lowering the brightness of the
displays or turning them off completely, you may
wish to have them appear whenever a button on
the remote or front panel is pushed, and then
gradually fade out after a set time period. You
may do this by making the appropriate settings in
the
line of the
VFD FADE TIME OUT
menu, as shown on
ADVANCED SELECT
page 47.

Memory Backup

This product is equipped with a memory backup
system that preserves tuner presets and system
configuration information if the unit is turned off
completely, accidentally unplugged or subjected
to a power outage. This memory will last for
approximately two weeks, after which time all
information must be reentered.
.
once to dim

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