AVR 3550 (serv.man12) - Harman Kardon Audio User Guide / Operation Manual. Page 10

10 REAR PANEL CONNECTIONS

 Video Monitor Outputs: Connect these
jacks to the composite and/or S-Video input of a
TV monitor or video projector to view the on-
screen menus and the output of any video source
selected by the receiver’s video switcher.

 Front/Center Speaker Outputs: Connect
these outputs to the matching + or – terminals
on your front/center speakers. When making
speaker connections, always make certain to
maintain correct polarity by connecting the red
(+) terminals on the AVR to the red (+) terminals
on the speaker and the black (–) terminals on
the AVR to the black (–) terminals on the speak-
ers. (See page 14 for more information on
speaker polarity.)

 Surround Speaker Outputs: Connect
these outputs to the matching + or – terminals
on your left and right surround speakers. When
making speaker connections always make cer-
tain to maintain correct polarity by connecting
the red (+) terminals on the AVR to the red (+)
terminals on the speakers and the black (–) ter-
minals on the AVR to the black (–) terminals on
the speakers. See page 14 for more information
on speaker polarity.

 Switched AC Accessory Outlet: This out-
let may be used to power any device that you
wish to have turn on when the unit is turned on
with the System Power Control switch 2.

 Unswitched AC Accessory Outlet: This
outlet may be used to power any AC device. The
power will remain on at this outlet regardless of
whether the AVR is on or off (in Standby), pro-
vided that the Main Power switch 1 is on.

Note: The total power consumption of all
devices connected to the accessory outlets
should not exceed 100 watts from the
Unswitched Outlet

 and 50 W from the

.

 AC Power Cord: Connect the AC plug to an
unswitched AC wall output.

 DVD Video Inputs: Connect these jacks to
the composite or S-Video output jacks on a DVD
player or other video source.

 Video 1 Video Outputs: Connect these
jacks to the RECORD/INPUT composite or 
S-Video jack on a VCR.

 Remote IR Input: If the receivers front-
panel IR sensor is blocked due to cabinet doors
or other obstructions, an external IR sensor may
be used. Connect the output of the sensor to
this jack.

 Video 2 Video Inputs: Connect these jacks
to the PLAY/OUT composite or S-Video jacks on
a second VCR or other video source.

 Remote IR Output: This connection permits
the IR sensor in the receiver to serve other
remote controlled devices. Connect this jack to
the “IR IN” jack on Harman Kardon or other
compatible equipment.

 Video 1 Video Inputs: Connect these jacks
to the PLAY/OUT composite or S-Video jacks on
a VCR or other video source.

 Optical Digital Inputs: Connect the optical
digital output from a DVD player, HDTV receiver,
LD player, MD player or CD player to these jacks.
The signal may be either a Dolby Digital signal, a
DTS signal or a standard PCM digital source.

 Video 2 Audio Inputs: Connect these jacks
to the PLAY/OUT audio jacks on a VCR or other
video source.

Note: Either the Video or S-Video output of any
S-Video source must be connected to the AVR,
not both in parallel, otherwise the video may be
disturbed or its performance be adversely 
effected.