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REAR-PANEL CONNECTIONS

Analog 1– 5:

Connect the left and right analog audio outputs of

a source device to any of these inputs. These inputs are assignable,
which means they may be paired with any video inputs, as explained
in subsequent sections of this manual.

NOTES:

• The Analog 3 through 5 connectors physically line up below

the Video 1 through 3 (composite and S-video) connectors.
For convenience, consider using Analog 3 with Video 1, Analog 4
with Video 2 and Analog 5 with Video 3, if appropriate for
your system.

• The Analog 1 and 2 connectors don’t physically line up with

any analog video inputs. Consider using them for audio-only
devices, such as a CD player or cassette tape deck.

• The Analog 2 and 4 inputs are each associated with a set of

outputs. Consider using the Analog 2 connectors for an audio
recorder, and the Analog 4 connectors for a video recorder
(along with the Video 2 connectors).

• You may optionally connect a source to both an analog and

digital audio input. This is useful for making recordings, for
multizone applications or simply as a backup.

Analog 2

and

4 Outputs:

Connect either of these analog audio

outputs to the analog audio inputs of a recording device. A signal is
available at these outputs whenever an analog audio source is playing.
However, the AVR 3550HD does not convert digital audio sources to
analog for recording.

Coaxial 1/ 2

and

Optical 1/ 2/ 3 Digital Audio Inputs:

If a

source has a compatible digital audio output, and if you are not using
an HDMI connection for audio for the device, connect it to one of these
jacks to hear digital audio formats, such as Dolby Digital, DTS and linear
PCM. Use only one type of digital audio connection for each source.

Coaxial Digital Audio Output:

If a source is also an audio

recorder, connect a coaxial digital audio output to the recorder’s input
for improved recording quality. Only PCM digital audio signals are
available for recording. The AVR 3550HD will pass signals from the
Optical Digital Audio Inputs to this output.

The Bridge II Input:

Connect the included Harman Kardon

docking station to this input for use with most docking

iPod models, 4G and later (not included). Make sure the receiver is
turned off (in Standby mode) when connecting The Bridge II.

6-/8-Channel Inputs:

Connect the multichannel analog audio

outputs of a DVD-Audio, SACD

™

, Blu-ray Disc

™

or HD-DVD player

(or any other external decoder) to these jacks to enjoy these formats.

NOTE:

When the multichannel player has an onboard digital

decoder, it is not necessary to connect it to the 6-/8-Channel
Analog Audio Inputs. Only a digital audio connection (HDMI,
coaxial or optical) is needed.

Zone 2 Audio Outputs:

Connect these jacks to an external amplifier

to power the speakers in the remote zone of a multizone system. When

these jacks are used, it is possible to have a full 7.1-channel system in
the main listening room at the same time the multizone system is in use.

Component Video 1, 2

and

3 Inputs:

If a video source (e.g.,

DVD player or HDTV tuner) has analog component video (Y/Pb/Pr)
capability, and if you are not using an HDMI connection for the device,
then connect the component video outputs of the source to one of the
sets of component video inputs. Do not make any other video connec-
tions to that source.

Component Video Monitor Outputs:

If you are using one of

the Component Video Inputs and your television or video display is
component-video-capable, and if you are not connecting the HDMI
Output to your display, connect these jacks to the corresponding inputs
on your video display.

NOTES:

• Due to copy-protection restrictions, there is no output at the

Component Video Monitor Outputs for copy-protected sources.

• Composite and S-video signals are upscaled to as high as

1080i and available at these outputs. If your video display’s
best connection is component video, it is the only video
connection required from the AVR to the display.

RS-232 Serial Port:

This specialized connector may be used with

your personal computer in case we offer a software upgrade for the
receiver at some time in the future.

RS-232 Mode:

Leave this switch popped out in the Operate position

unless the AVR 3550HD is being upgraded.

RS-232 Reset:

This switch is only used during a software upgrade.

A standard processor reset is performed by pressing and holding the
front-panel OK Button.

Switched AC Accessory Outlet:

You may plug the AC power

cord of one source device into this outlet, and it will turn on whenever
you turn on the receiver. Do not use a source that consumes more than
50 watts of power.

AC Power Input:

After you have made all other connections, plug the

AC power cord into this receptacle and into an unswitched wall outlet.

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AVR3550HD

harman/kardon