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OPERATION

Basic Operation

Once you have completed the initial setup and configu-
ration, the AVR 645 is simple to operate and enjoy. The
following instructions will help you maximize the enjoy-
ment of your new receiver:

Turning the AVR 645 On or Off

• When using the AVR for the first time, you must press

the

Main Power Switch

in until it latches. This

places the unit in a Standby mode, as indicated by the
amber illumination surrounding the

Standby/On

Switch

• To turn the AVR on or off from the front panel, press

the

Standby/On Switch

• To turn the unit on and select the input source that

was in use the last time the AVR was on, press the

AVR Selector

on either remote.

• To turn the unit on and select a specific source,

press any one of the

Input Selectors

on the main remote or

∂Éƒ®

on the

ZR 10 remote .

■

When using the

Input Selector Buttons

labeled DVD, DMP, XM or HDMI on the main
remote, remember that these are dual-input
selectors. The first press of any button will turn
the unit on and select the input name printed on
the button. A second press of the button will
select the input name printed above the button.

■

To turn the AVR on and select the Tuner as an

input, press the

Tuner/FM Select Button

by pressing the button up towards the top of the
remote. The first press of the button selects the
frequency band and station or XM channel that
was last tuned. Press the button again to select
between FM, AM and XM.

■

To turn the AVR on and select the FM tuner as the

input, press the

Tuner/FM Select Button

down towards the bottom of the remote.

■

When using any of the Input Selectors to turn the

unit on (or when using them to change a source
at any time) press the

AVR Selector

after the unit turns on to use any of the buttons
on the remote to control AVR functions other than
volume or source selection.

Whenever the AVR is turned on, you will see all of the
front-panel indicators light up for a few seconds. This is
normal, and it is part of the unit’s power-on self-test
procedure.

To turn the unit off at the end of a listening session,
simply press the

Standby/On Switch

on the front

panel or the

Power Off Button

on the

remote. Power will be shut off to any equipment
plugged into the rear-panel

Switched AC Accessory

Outlet

and the illumination around the

Standby/

On Switch

will turn amber.

When the remote is used to turn the unit “off,” it is
actually placing the system in a Standby mode, as indi-
cated by the amber lighting around the

Standby/On

Switch

• To put the AVR in the Sleep mode, press the

Sleep Button

. Each press of the button will

decrease the time before the AVR shuts down in
the following sequence.

Once you have set the desired Sleep Time, the front-
panel display will automatically dim to half-brightness.
The display will return to full-brightness when any but-
ton on the front panel or a remote is pressed, and
then return again to half-brightness. To view the time
remaining until the unit shuts down, press the

Sleep

Button

once. To cancel the Sleep function,

press the

Sleep Button

as many times as needed

until the words

SLEEP OFF

appear in the

Lower Display Line

When you will be away from home for an extended
period of time, it is always a good idea to completely
turn the unit off with the front-panel

Main Power

Switch

NOTE:

All preset memories are lost if the unit is left

turned off by using the

Main Power Switch

for

more than four weeks.

Source Selection

• To select an input source from the front panel, press

the

Input Source Selector Button

. Each press

of the button will move the input selection through
the list of available choices. If the button is pressed
when the AVR is in the Standby mode, the first
press of the button will turn the unit on and select
the last used input.

• When the AVR is already turned on, you may select

the tuner directly by pressing the

Tuner Band

Selector

. The first press will select the last

tuned frequency band and station. Each subsequent
press will change the band to the last tuned station
or XM preset.

• To select a specific source using the main remote,

press any one of the

Input Selectors

on the main remote. Remember that the Input
Selector Buttons labeled DVD, DMP, XM or HDMI
are dual-input selectors. The first press of any button
will turn the unit on and select the input name printed
on the button. A second press of the button will
select the input name printed above the button.

• To directly select the Tuner as an input, press the

Tuner/FM Select Button

by pressing the button

up towards the top of the remote. The first press of
the button selects the frequency band and station or

XM channel that was last tuned. Press the button
again to select between FM, AM and XM.

• To directly select the FM tuner as the input, press

the

Tuner/FM Select Button

down towards

the bottom of the remote.

• To select a specific source using the ZR 10 remote,

press any of the

Input Selectors

∂Éƒ

. When selecting the Tuner as the input, each

press of the

Tuner Selector

scrolls through

the choice of FM, AM or XM Radio (when an
optional XM Ready or Passport module is installed
and the XM service has been activated).

REMINDER:

When using any of the Input Selectors

to change a source, you must press the

AVR Selector

to control AVR functions other than volume

or source selection.

• When a new input is selected, the AVR will automat-

ically switch to the digital input (if selected), surround
mode, component video input, A/V sync delay and
Night mode configurations that were in effect the
last time that input was used.

• The front-panel

Video 4 Inputs

Optical

Digital 4 Input

or the

Coaxial Digital 4 Input

may be used to connect a device such as a

video game or camcorder to your home entertain-
ment system on a temporary basis.

• As the input source is changed, the new input name

will appear momentarily as an on-screen display in
the lower third of the video display (except when
720p or 1080i sources are in use). The input name
will also appear in the

Upper Display Line

and

in the front-panel

Input Indicators

• When an audio only source is selected, the last video

input used remains routed to the

Video 1/Video

Monitor Outputs

. This permits simultaneous

viewing and listening to different sources.

6-Channel/8-Channel Direct Input

There are four input choices available for use with
sources such as DVD-Audio SACD player or HD-DVD
or Blu-Ray disc player that are connected to the

8-Channel Direct Inputs

. Select the appropriate

input according to the way your system and source
equipment is configured:

• The

6 CH DIRECT

input should be used

when the SBR and SBL inputs are NOT in use and
the input source device has its own internal bass
management system. This input passes the input
from the source directly through to the volume control
without any analog-to-digital conversion, and it
mutes the unused input jacks to prevent unwanted
noise from interfering with system performance.

• The

6 CH DVD AUDIO

input should be used

when the SBR and SBL inputs are NOT in use

and

when the input source does NOT have its own i

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