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35
OPERATION
Now that you have installed your components and completed a basic
configuration, you are ready to begin enjoying your home theater system.
Turning On the AVR 3550HD
Flip the Main Power Switch on the rear panel up to the “On” position. The
Power Indicator on the front panel will turn amber, indicating that the AVR is
in Standby mode and is ready to be turned on. The Main Power Switch is
normally left on. See Figure 46.
There are several ways to trun on the AVR 3550HD:
a) Press the Standby/On Switch on the front panel. See Figure 46.
b) Using the remote, press the AVR Power On Button or any of the
Source Selectors. See Figure 47.
To turn the receiver off, press either the Standby/On Switch on the front
panel or the AVR Power Off Button on the remote. Unless the receiver
will not be used for an extended period of time, leave the Main Power
Switch on. When the Main Power Switch is turned off, any settings you
have programmed will be preserved for up to four weeks.
IMPORTANT NOTE: If the PROTECT message ever appears
in the Message Display, turn off the AVR and unplug it. Check
all speaker wires for a short. If none is found, bring the unit to
an authorized Harman Kardon service center for inspection and
repair before using it again.
Volume Control
Adjust the volume either by turning the knob on the front panel (clock-
wise to increase volume or counterclockwise to decrease volume), or
by pressing the Volume Control on the remote. See Figure 57. The
volume is displayed as a negative number of decibels (dB) below the
0dB reference point.
0dB is the maximum volume for the AVR 3550HD. Although it’s possible
to turn the volume to a higher level, doing so may damage your hearing
and your speakers. For certain more dynamic audio materials, even 0dB
may be too high, allowing for damage to equipment. Use caution with
regard to volume levels.
To change the volume level display from the default decibel scale to a
0-to-100 scale, adjust the Volume Units setting in the System Settings
menu, as described on page 48.
Figure 57 – Volume Controls
Mute Function
To temporarily mute all speakers and the headphones, press the Mute
Button on the remote. See Figure 57. Any recording in progress will
not be affected. The MUTE message will appear in the display as a
reminder. To restore normal audio, press the Mute Button again, or
adjust the volume.Turning off the AVR will also end muting.
Sleep Timer
The sleep timer sets the AVR to play for up to 90 minutes and then
turn off automatically.
Press the Sleep Settings Button on the remote, and the time until
turn-off will be displayed. See Figure 58. Each additional press of the
Sleep Button increases the play time by 10 minutes, up to a maximum
of 90 minutes.The SLEEP OFF setting disables the sleep timer.
Figure 58 – Sleep Settings Button
When the sleep timer has been set, the front-panel display will automati-
cally dim to half-brightness. If you press any button on the remote or
front panel, the display will return to full-brightness. The display will dim
again several seconds after your last command.
If you press the Sleep Button after the timer has been set, the remaining
play time will be displayed. Press the Sleep Button again to change the
play time.
Audio Effects
Adjust the tone controls, subwoofer level or Night Mode to improve
performance. Access these settings from the Audio Effects submenu,
as described in the Advanced Functions section.
It is recommend that you leave the settings at their default values until
you are more familiar with your system.
Video Modes
The settings in the Video Modes menu are used to fine-tune the
picture if necessary after making all adjustments on the video display.
It is recommended that you leave the settings at their defaults. See the
Advanced Functions section for detailed information.
Headphones
Plug the 1/4" plug on a pair of headphones into the jack on the front
of the receiver for private listening. See Figure 59. The default Dolby
Headphone bypass mode delivers a conventional 2-channel signal to
the headphones.
Figure 59 – Headphone Jack