HK 3470 (serv.man4) - Harman Kardon Audio User Guide / Operation Manual. Page 14

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14
OPERATION
Basic Operation
The HK 3470 is simple to operate, and very simi-
lar to stereo receivers you may have used in the
past. This section will explain the use of several
features that may be new to you.
• Install the two supplied AAA batteries in the
remote as shown. Be certain to observe the (+)
and (–) polarity indicators shown in the bottom
of the battery compartment.
• When using the HK 3470 for the first time, it
will be necessary to press the Main Power but-
ton 1 on the front panel to turn the unit on.
This places the unit in a standby mode, as indi-
cated by the amber color of the Power
Indicator 
3. Once the unit is in standby, you
may begin a listening session by pressing the
System Power Control 2 on the front panel
or the Main Power On button å on the
remote. Note that the Power Indicator 3 will
turn red, then green. This will turn the unit on
and return it to the input source that was last
used. The unit may also be turned on from
standby by pressing any of the Source
Selector 
buttons on the front panel
8 9 ! # $ &
or remote ç.
To turn the unit off at the end of a listening ses-
sion simply press the System Power Control
2
on the front panel or the Main Power Off
button ∫ on the remote. This places the unit in
the Standby mode, and the Power Indicator
3
will turn amber to remind you that the unit is
ready for operation when a power command is
received from the remote.
Power to any equipment plugged into the rear
panel Switched AC Outlet
 will be shut off
and the Power Indicator 3 will turn amber.
When the remote is used to turn the unit “off”, it
is actually placing the system in a standby mode,
as indicated by the amber color of the Power
Indicator 
3.
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 using the front
panel Main Power Switch 1.
Note that due its EEPROM backup system the
HK3470 will retain information such as pro-
grammed presets virtually indefinitely (see
”Memory Backup”, page 19).
• To dim the brightness of the front panel dis-
play, press the Dimmer button ˙ on the
remote. The first press will dim the lights to half
normal. A second press will turn the display
completely off. Press the Dimmer button ˙
again to restore the display to normal bright-
ness.
Source Selection
• To select a source at any time, press any of
the Source Selector buttons on the remote ç
or front panel 89!#$&.
• During a listening session you may wish to
adjust the Bass Ó, Treble Ô and Balance
controls to suit your listening tastes.
• Adjust the volume to a comfortable level
using the front panel Volume Control Ò or
remote Master Volume Up/Down π buttons.
The volume level is displayed by the position of
the Volume Indicator Ú. Think of the
Volume Control knob Ò as the face of a
clock, with the Volume Indicator Ú indicat-
ing the hour. The HK 3470 is playing at the mini-
mum volume level when the Volume Indicator
Ú
points to 7 o’clock; when the Volume
Indicator Ú points to 5 PM, the HK 3470 is
playing at the maximum volume level. It is
important that you make sure never to exceed
this maximum volume level at any time, in order
to avoid possible damage to your loudspeakers
due to “clipping”, a type of distortion that is not
audible to the human ear until it is severe
enough to permanently damage most loud-
speakers. It is also possible, depending upon the
program material, for clipping to occur at vol-
umes below the maximum volume level.
• To temporarily silence all speaker outputs,
press the Mute button ®5. This will cut the
output to all Pre and Sub Outs and to all speak-
ers, but it will not affect any recording or dub-
bing that may be in progress. When the system
is muted, the MUTE indicator K will light in
the Main Information Display Û and the
Volume/Mute indicator Ú will flash. Press the
Mute button ®5 again to return to normal
operation.
• For private listening, plug the 6,3 mm stereo
phone plug from a pair of stereo headphones
into the front panel Headphone jack 4.
• One or two separate sets of speakers may be
connected to the HK 3470. To listen to one of
the speaker sets, press the Speaker button 6
or 7 on the front panel corresponding to the
desired speakers or press them both to listen to
both speakers pairs. The active speakers will be
indicated by a lit green LED in the Speaker
Indicators 
Ù display. Both sets of speakers
may be turned off for private headphone listen-
ing.
IMPORTANT NOTE: When two speaker pairs
are connected to the HK3470RDS and are to  be
used simultanously, the impedance of each
speaker must not be lower than 8 Ohms.
• To program the HK 3470 for automatic turn-
off, press the Sleep button on the front panel
(
or remote ©. Each press of the button will
increase the time before shutdown in the follow-
ing sequence:
The sleep time will be displayed in the Main
Information Display 
Û and it will count
down until the time has elapsed.
When the programmed time has elapsed, the
unit will automatically turn off (to Standby
mode). Note that the front panel display will dim
to one-half brightness when the Sleep function
is programmed. To cancel the Sleep function,
press the Sleep button (© or simply hold it
pressed for some seconds until the Sleep
indicator numbers disappear and the Main
Information Display shows the current source.
Pressing any control button while the Sleep con-
trol is activated will momentarily return the Main
Information Display to full brightness for
increased legibility without interrupting the
Sleep function.
To take advantage of Harman Kardon’s exclusive
VMAx mode, Press the VMAx button ^†.
When the VMAx circuits are engaged, patented
processing algorithms are used to create a
three-dimensional sound space with the illusion
of “phantom” speakers at center and surround
positions. This spacious sound will simulate a
surround-sound presentation without the need
to add additional speakers. To return to standard
stereo listening, press the VMAx button ^†
again and note that the VMAx Mode
Indicator 
A will go out.
(For more information on maximum benefit with
VMAx see page 11, item †).
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Operation
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