Connections - Harman Kardon AVR235 Service Manual

AVR235
INSTALLATION AND CONNECTIONS
System Installation
After unpacking the unit, locating it in a place with ade-
quate ventilation and placing it on a solid surface capable
of supporting its weight, you will need to make the con-
nections to your audio and video equipment.
IMPORTANT NOTE: For your personal safety and to
avoid possible damage to your equipment and speakers,
it is always a good practice to turn off and unplug the
AVR and ALL source equipment from the AC output
before making any audio or video system connections.
Audio Equipment Connections
We recommend that you use high-quality interconnect
cables when making connections to source equipment
and recorders to preserve the integrity of the signals.
1. Connect the analog output of a CD player to the
CD Audio Inputs ¡.
NOTE: When the CD player has both fixed and vari-
able audio outputs, it is best to use the fixed output
unless you find that the input to the receiver is so low
that the sound is noisy, or so high that it is distorted.
2. Connect the analog Play/Out jacks of a cassette
deck, MD, CD-R or other audio recorder to the Tape
Input Jacks 36 . Connect the analog Record/In jacks
on the recorder to the Tape Output Jacks ™ on
the AVR 235.
3. Connect the output of any digital sources such
as a CD or DVD changer or player, advanced video
game, a digital satellite receiver, HDTV tuner or digital
cable set-top box or the output of a compatible
computer sound card to the Optical and Coaxial
Digital Audio Inputs ad*(.
4. Connect the coaxial or optical Digital Audio Outputs
‡° on the rear panel of the AVR 235 to the matching
digital input connections on a CD-R or MiniDisc recorder.
5. Assemble the AM Loop Antenna supplied with the
unit so that the tabs at the bottom of the antenna loop
snap into the holes in the base. Connect it to the AM
Antenna Terminals .
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6. Connect the supplied FM antenna to the FM (75-
ohm) Connection 38 . The FM antenna may be an
external roof antenna, an inside powered or wire-lead
antenna or a connection from a cable TV system. If
the antenna or connection uses 300-ohm twin-lead
cable, you must use an optional 300-ohm-to-75-ohm
adapter to make the connection.
14 INSTALLATION AND CONNECTIONS
7. Connect the front, center, surround and surround
back speaker outputs ¶•ª‚ to the respective
speakers.
To ensure that all the audio signals are carried to your
speakers without loss of clarity or resolution, we sug-
gest that you use high-quality speaker cable. Many
brands of cable are available and the choice of cable
may be influenced by the distance between your
speakers and the receiver, the type of speakers you
use, personal preferences and other factors. Your dealer
or installer is a valuable resource to consult in select-
ing the proper cable.
Regardless of the brand of cable selected, we recom-
mend that you use a cable constructed of multistrand
copper with a gauge of 14 or smaller. Remember that
in specifying cable, the lower the number, the thicker
the cable.
Cable with a gauge of 16 may be used for short runs
of less than 10 feet. We do not recommend that you
use cables with an AWG equivalent of 18 or higher,
due to the power loss and degradation in performance
that will occur.
Cables that are run inside walls should have the appro-
priate markings to indicate listing with UL, CSA or other
appropriate testing agency standards. Questions about
running cables inside walls should be referred to your
installer or a licensed electrician who is familiar with
the NEC and/or the applicable local building codes in
your area.
When connecting wires to the speakers, be certain
to observe proper polarity. Note that the positive (+)
terminal of each speaker connection now carries a
specific color code, as noted on page 7. However,
most speakers still use a red terminal for the positive
(+) connection. Connect the "negative" or "black"
wire to the same terminal on both the receiver and
the speaker.
NOTE: While most speaker manufacturers adhere to
an industry convention of using black terminals for
negative and red ones for positive, some may vary
from this configuration. To ensure proper phase and
optimal performance, consult the identification plate on
your speaker or the speaker's manual to verify polarity.
If you do not know the polarity of your speaker, ask
your dealer for advice before proceeding, or consult
the speaker's manufacturer.
We also recommend that the length of cable used
to connect speaker pairs be identical. For example,
use the same length piece of cable to connect the
front-left and front-right or surround-left and sur-
round-right speakers, even if the speakers are a
different distance from the AVR 235.
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harman/kardon
It is appropriate to configure the AVR 235 for either
5.1- or 7.1-channel operation, but not for 6.1
channels. When 6.1-channel program material or a
6.1-channel processing mode is in use, material for
the surround back channel will be outputted simulta-
neously through both the Surround Back Left and
Right Speaker Outputs •. Connecting only one
loudspeaker to these speaker terminals will not only
deprive you of the benefits of 7.1-channel surround
modes, such as Logic 7, but will also interfere with
the functioning of EzSet speaker calibration, as
described on page 23. It may also put undesirable
strain on the surround back amplifier circuits and
power supplies.
8. Connections to a subwoofer are normally made via
a line-level audio connection from the Subwoofer
Output § to the line-level input of a subwoofer with
a built-in amplifier. When a passive subwoofer is used,
the connection first goes to a power amplifier, which
will be connected to one or more subwoofer speakers.
If you are using a powered subwoofer that does not
have line-level input connections, follow the instruc-
tions furnished with the speaker for connection
information.
9. If an external multichannel audio source with 5.1
outputs such as an external digital processor/decoder,
DVD-Audio or SACD player is used, connect the
outputs of that device to the 6/8-Channel Direct
Inputs g.
Video Equipment Connections
Video equipment is connected in the same manner
as audio components. Again, the use of high-quality
interconnect cables is recommended to preserve
signal quality.
1. Connect a VCR's, personal video recorder's (PVR)
or other video source's audio and video Play/Out jacks
to the Video 1 or Video 2 Audio/Video and S-Video
Input Jacks cf
on the rear panel. The
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Audio and Video Record/In jacks on the VCR should
be connected to the Video 1 or Video 2 Audio/
Video and S-Video Output Jacks eh
on the AVR 235.
Although any video device may be connected to these
jacks, we recommending connecting your video
recorder to the Video 1 Audio/Video and S-Video
Input and Output Jacks ce
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may take advantage of the fact that the remote control
is preprogrammed with video recorder product codes
for the Video 1 device.
2. Connect the analog audio and video outputs of
a satellite receiver, cable TV converter, television
set or any other video source to the Video 2 or
Video 3 Audio/Video and S-Video Input Jacks
fhi
35 .
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so that you