Harman-Kardon AVR 3550HD Front-Panelcontrols, Power Indicator: This LED has three possible modes

FRONT-PANEL CONTROLS

Standby/On Switch: This electrical switch turns the receiver on, or places it in Standby mode for quick turn-on.

Power Indicator: This LED has three possible modes:

•Main Power Off: When the AVR is unplugged or the rear-panel Main Power Switch is off, this LED is off.

•Standby: Amber indicates that the AVR is ready to be turned on.

•On: When the AVR is turned on, this LED turns white.

NOTE: If the PROTECT message ever appears, turn off the AVR and unplug it. Check all speaker wires for a possible short. If none is found, bring the unit to an authorized Harman Kardon service center for inspection and repair before using it again.

Source List: Press this button to select a source device, which is a component where a playback signal originates, e.g., DVD.

Volume Knob: Turn this knob to raise or lower the volume.

Message Display: Various messages appear in this two-line display in response to commands and changes in the incoming signal. In normal operation, the current source name appears on the upper line, while the surround mode is displayed on the lower line. When the on-screen display menu system (OSD) is in use, the current menu settings appear.

Headphone Jack/EzSet/EQ Microphone Input: Plug a 1/4" headphone plug into this jack for private listening.

This jack is also used to connect the supplied microphone for the EzSet/EQ procedure described in the Initial Setup section.

Surround Modes: Press this button to select a surround sound (e.g., multichannel) mode. The Surround Modes menu will appear on screen, and the menu line will appear in the front-panel display.

See the Advanced Functions section for more information on surround modes.

Analog Audio, Video and Digital Audio Front Inputs: Connect a source component that will only be used temporarily, such as a digital camera or game console, to these jacks. Use only one type of audio and one type of video connection.

NOTE: The AVR’s menus refer to these jacks as the Optical Front, Coaxial Front, Composite Front, S-Video Front and Analog Front inputs.

Speaker/Channel Input Indicators: The box icons indicate which speaker positions you have configured (see the Initial Setup Section), and the size (frequency range) of each speaker. The letters will light inside the boxes to indicate which channels are present in the incoming signal.

Navigation: These buttons are used to navigate the AVR’s menus and to operate the tuner.

Remote IR Sensor: This sensor receives infrared (IR) commands from the remote control. It is important to ensure that it is not blocked. If covering the sensor is unavoidable, use an optional Harman Kardon HE 1000, or other infrared receiver, connecting it to the Remote IR Input on the AVR 3550HD’s rear panel.

AVR Settings Button: Press this button to access the AVR’s main menu.

Info Settings Button: Press this button to directly access the AVR’s Source Info submenu, which contains the settings for the current source.

Resolution: Each press of this button changes the AVR’s video output

resolution to these settings: 480i, 480p, 720p, 1080i or 1080p.

IMPORTANT NOTE: If the AVR’s video output resolution is set higher than the capabilities of the actual connection, you will not see a picture. If the best video connection from the AVR to the TV is either composite or S-video, press this button until the resolution is set to 480i.

Audio Effects: Press this button to directly access the Audio Effects submenu, which allows adjustment of the tone and other controls. See the Initial Setup section for more information.

Video Modes: Press this button for direct access to the Video Modes submenu, which contains settings that may be used to improve the picture if necessary after you have adjusted the picture settings using the video display or TV.

OK: Press this button to select the currently highlighted item.

Back/Exit: Press this button to return to the previous menu, or to exit the menu system.

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