AVR 55 - Harman Kardon Audio Service Manual (repair manual). Page 14

Installation and Setup

When connecting wires to the speakers,
be certain to observe proper polarity.
Remember to connect the “negative” or
“black” wire to the same terminal on the
receiver and the speaker. Similarly, the
“positive” or “red” wire should be con-
nected to the like terminal on the AVR55
and speaker.

NOTE: While most speaker manufacturers
adhere to an industry convention of using
black terminals for negative and red ones
for positive, some manufacturers may
vary from this configuration. To assure
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.

8. Connections to a subwoofer are made
via a line level audio connection from
the 

∞

to the line

level input of a subwoofer with a built-in
amplifier. If a passive subwoofer is used,
the connection first goes to a power
amplifier, which will be connected to one
or more subwoofer speakers.

Video Input and Output Connections
Video connections are made in a similar
fashion to those for audio components.
Again, the use of high-quality intercon-
nect cables is recommended to preserve
signal quality.

1. Connect your VCR’s audio and video
OUT jacks to the 

jacks 

°

on

the rear panel. The audio and video IN
jacks on the VCR should be connected to
the 

jacks 

›

on the AVR55.

2. Connect the audio and video outputs
of a satellite receiver, cable TV converter
or television set or any other video source
to the 

jacks 

¤

.

3. Connect the audio and video outputs
of a DVD or laser disc player to the 

jacks 

‹

.

4. Connect the 

a

jack on

the receiver to the video input of your
television monitor or video projector. 

The AVR55 is designed for flexible use
with external control components and
power amplifiers. These connections are
easy to make during an initial installa-
tion, or at a later date should you choose
to upgrade your system.

Remote Control Extension
If the receiver is placed behind a solid or
smoked glass cabinet door, the obstruc-
tion may prevent the remote sensor from
receiving commands. In this event, an
optional remote sensor may be used.
Connect the output of the remote sensor
to the 

jack 

c

. 

If other components are also prevented
from receiving remote commands, only
one sensor is needed. They may use this
unit’s sensor or a remote eye by running
a connection from the 

jack 

b

to the Remote In jack on

Harman Kardon or other compatible
equipment. 

If desired, optional external power audio
power amplifiers may be used with the
AVR55. Connections may be made by con-
necting the 

£ ¢ h

of the AVR55 to the inputs of the external
amplifier. Before connecting the front
channels to an external amplifier, remove
the jumper pins connecting the 

and 

h i

and save them for future use.

AC Power Connections
This unit is equipped with two accessory
AC outlets. They may be used to power
accessory devices, but they should not be
used with high-current draw equipment
such as power amplifiers. Their total
power draw may not exceed 100 watts.

These 

fl

will receive power

only when the unit is on. These recom-
mended for devices that have no power
switch, or a mechanical power switch
that may be left in the “ON” position.

NOTE: Devices with electronic power
switches may only go into a Standby
mode when plugged in here.

Finally, when all connections are com-
plete, plug the 

‡

into

a non-switched 120-volt AC wall outlet.
You’re almost ready to enjoy the AVR55!