FRONT-PANEL CONTROLS
Main Power Switch: This mechanical switch turns the power supply on or off. It is usually left pressed in (On position), and cannot be turned on using the remote control.
Standby/On Switch: This electrical switch turns the receiver on for playback, or leaves it in Standby mode for quick
Power Indicator: This LED has four possible modes:
•Main Power Off: When the AVR is unplugged or the Main Power Switch is off, this LED remains unlit.
•Standby: This LED turns amber, indicating that the AVR is ready to be turned on.
•On: This LED turns white, and the AVR operates normally.
•Protect: If this LED ever turns red, 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.
When the main power is turned off, the LED is dark and the receiver won’t respond to any button presses. When the main power is turned on, but before the Standby/On Switch is used, the LED turns amber to indicate that the receiver is in standby mode and is ready to be turned on. When the receiver is turned on, the LED turns white.
Source Select: Press this button to select a source device, which is a component where a playback signal originates, e.g., DVD, CD, cable TV, satellite or HDTV tuner. The source’s name will appear in the Message Display.
Volume Knob: Turn this knob to raise or lower the volume, which will be shown in decibels (dB) in the Message Display.
Message Display: Various messages appear in this
Tuner Band: Press this button to select the tuner as the source, or to switch between the AM and FM bands.
Tuning: Press either side of this button to tune a radio station.
Tuning Mode: This button toggles between manual (one frequency step at a time) and automatic (seeks frequencies with acceptable signal strength) tuning mode. It also toggles between stereo and mono modes when an FM station is tuned.
Preset Stations: Press this button to select a preset radio station.
Headphone Jack: Plug a 1/4" headphone plug into this jack for private listening.
Surround Mode: Press this button to select a surround sound (e.g., multichannel) mode group. Choose from the Dolby modes, DTS modes, Logic 7 modes, DSP modes or Stereo modes.
Surround Select: After you have selected the desired surround mode group, press this button to select a specific mode.
Analog Audio, Video and Digital Audio Inputs: Connect a source component that will only be used temporarily, such as a camera or game console to these jacks. Use only one type of audio and one type of video connection.
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. When a digital audio input is used, letters will light inside the boxes to indicate which channels are present in the incoming signal.
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, such as when the AVR 154 is placed inside a cabinet, you may use an optional Harman Kardon
HE 1000, or other infrared receiver, with an IR emitter (“blaster”) placed directly over this sensor.
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