Rear Panel Connections
6-Channel Direct Inputs: These jacks are used for connection to source devices such as DVD-Audio or SACD players with discrete analog outputs.
Digital Audio Output: Connect this jack to the matching digital input connector on a digital recorder such as a CD-R or MiniDisc recorder.
Video Monitor Outputs: Connect this jack 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 standard Video or S-Video source selected by the receiver’s video switcher.
DVD Video Inputs: Connect these jacks to the composite or S-Video output jacks on a DVD player or other video source.
Front Speaker Outputs: Connect these outputs to the matching + or – terminals on your left and right speakers. In conformance with the new CEA color code specification, the White terminal is the positive, or "+" terminal that should be connected to the red (+) terminal on Front Left speaker with the older color coding, while the Red terminal is the positive, or "+" terminal that should be connected to the red (+) terminal on Front Right speaker. Connect the black (–) terminals on the AVR to the black (–) terminals on the speakers. See page 13 for more information on speaker polarity.
Center Speaker Outputs: Connect these outputs to the matching + and – terminals on your center channel speaker. In conformance with the new CEA color code specification, the Green Terminal is the positive, or "+" terminal that should be connected to the red (+) terminal on speakers with the older color coding. Connect the black (–) terminal on the AVR to the black negative (–) terminal on your speaker. (See page 13 for more information on speaker polarity.)
Surround Speaker Outputs: Connect these outputs to the matching + and – terminals on your surround channel speakers. In confor- mance with the new CEA color code specifica- tion, the Blue terminal is the positive, or "+" terminal that should be connected to the red (+) terminal on the Surround Left speaker with older color coding, while the Gray terminal should be connected to the red (+) terminal on the Surround Right speaker with the older color coding. Connect the black (–) terminal on the AVR to the matching black negative (–) terminals for each surround speaker. (See page 13 for more information on speaker polarity.)
Switched AC Accessory Outlet: This outlet may be used to power any device that you wish to have turn on when the AVR is turned on with the System Power Control switch 2.
Note: The total power consumption of all devices connected to the accessory outlets should not exceed 50 W from the Switched Outlet .
Video 1 Audio Inputs: Connect these jacks to the PLAY/OUT audio jacks on a TV or other audio or video source.
AC Power Cord: Connect the AC plug to an (unswitched if possible) AC wall output.
Video 2 Component Video Inputs: Connect the Y/Pr/Pb component video outputs of an HDTV Set-top convertor, satellite receiver, or other video source device with component video outputs to these jacks.
Monitor Component Video Outputs: Connect these outputs to the component video inputs of a video projector or monitor. When a source connected to one of the two Component Video Inputs is selected the signal will be sent to these jacks.
Video 1 Component Video Inputs: Connect the Y/Pr/Pb component video outputs of a DVD player to these jacks.
Note: All component inputs/outputs can be used for RGB signals too, in the same way as described for the Y/Pr/Pb signals, then connected to the jacks with the corresponding color.
RGB connection is not possible if the source out- puts a separate sync signal (see page 15).
Video 2 Audio Inputs: Connect these jacks to the PLAY/OUT audio jacks on a second VCR or other audio or video source.
Coaxial Digital Inputs: Connect the coax digital output from a DVD player, HDTV receiver, the output of a compatible computer sound card playing MP3 files or streams, LD player, MD player or CD player to these jacks. The signal may be either a Dolby Digital signal, DTS signal, a 2 channel MPEG 1 signal, or a standard PCM digital source. Do not connect the RF digital out- put of an LD player to these jacks.
Video 2 Video Inputs: Connect these jacks to the PLAY/OUT composite or S-Video jacks on a second VCR or other video source.
Video 1 Video Outputs: Connect these jacks to the RECORD/INPUT composite or S-Video jack on a VCR.
Video 1 Video Inputs: Connect these jacks to the PLAY/OUT composite or S-Video jacks on a TV or other video source.
Optical Digital Inputs: Connect the optical digital output from a DVD player, HDTV receiver, the output of a compatible computer sound card playing MP3 files or streams, LD player, MD player or CD player to these jacks. The signal may be either a Dolby Digital signal, a DTS signal, a 2 channel MPEG 1 signal, or a standard PCM digital source.
RS-232 Serial Port: This specialized connector may be used with your personal computer in case Harman Kardon offers 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 155 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 Tone button while the receiver is in Standby.
"HDMI Inputs: Connect the HDMI output of video sources such as a DVD player, set-top box or HDTV tuner to either of these jacks.
#HDMI Output: Connect this jack to the HDMI input on a compatible HDMI-equipped video display.
Main Power Switch
Press "On" on this button to apply power to the AVR and place it in a Standby Mode, as indicat- ed by the amber front panel LED 2. This button MUST be pressed On to operate the unit.
To turn the unit off completely and prevent the use of the remote control, this switch should be pressed "Off".
NOTE: This switch is normally left in the “ON” position.
NOTE ON VIDEO CONNECTIONS: When connecting a video source product such as a VCR, DVD player, satellite receiver, cable set-top box, personal video recorder or video game to the AVR 155, you may use either a composite or S-video connection, but not both.
