HARMAN KARDON AVR120
Service Manual

AVR120

harman/kardon

Front Panel Controls
8 Tuning Selector: Press the left side of the button to tune lower-frequency stations and the right side of the button to tune higher-frequency stations. When a station with a strong signal is reached, the TUNED Indicator Q will be illuminated in the Main Information Display � . To tune manually, tap the button lightly and note that the tuner will step up one frequency increment per button press. When the button is held for a few seconds you will note that the unit will quickly search the frequency band. Release it once the fast tuning starts; the tuner will automatically scan for the next station with an acceptable signal and then stop. 9 Tuner Band Selector: Pressing this button will automatically switch the AVR 120 to the Tuner mode. Pressing it again will switch between the AM and FM frequency bands. (See page 25 for more information on the tuner.) ) Preset Stations Selector: Press this button to scroll up or down through the list or stations that have been entered into the preset memory. (See page 26 for more information on tuner presets.) ! Input Source Selector: Press this button to change the input by scrolling up or down through the list of input sources. @ FM Mode Selector: Press this button to select Auto or Manual tuning. When the button is pressed so that the AUTO Indicator R lights, the tuner will search for the next station with an acceptable signal when the Tuning Selector 8u is pressed. When the button is pressed so that the AUTO Indicator R is not lit, each press of the Tuning Selector 8u will increase the frequency. This button may also be used to switch between Stereo and Mono modes for FM radio reception. When weak reception is encountered, press the button until the STEREO Indicator P goes out to switch to Mono reception. Press and hold again to switch back to STEREO mode. (See page 25 for more information on using the tuner.) # Digital Optical 3 Input: Connect the optical digital output of an audio or video product to this jack. When the input is not in use, be certain to keep the plastic cap installed to avoid dust contamination that might degrade future performance. $ Digital Coax 3 Input: This jack is used for connection to the output of portable audio devices, video game consoles or other products that have a coax digital jack. % Video 4 Video Input Jacks: These jacks may be used for temporary connection to the composite or S-Video output of video games, camcorders or other portable video products. ^ Video 4 Audio Input Jacks: These audio jacks may be used for temporary connection to video games or portable audio/video products such as camcorders and portable audio players. & Bass Control: Turn this control to modify the low-frequency output of the left/right channels by as much as ±10dB, when the unit is in the �Surround Off� mode. Set this control to a suitable position for your taste or room acoustics. * Balance Control: Turn this control to change the relative volume for the front left/right channels. NOTE: For proper operation of the surround modes this control should be at the midpoint or �12 o�clock� position. ( Treble Control: Turn this control to modify the high frequency output of the left/right channels by as much as ±10dB, when the unit is in the �Surround Off� mode. Set this control to a suitable position for your taste or room acoustics. � Volume Control: Turn this knob clockwise to increase the volume, counterclockwise to decrease the volume. If the AVR 120 is muted, adjusting the Volume Control � 33 will automatically release the unit from the silenced condition. � Set Button: When making choices during the setup and configuration process, press this button to enter the desired setting as shown in the Main Information Display � into the AVR 120�s memory. The set button may also be used to change the display brightness. (See page 26.)  Input Indicators: A green LED will light in front of the input that is currently being used as the source for the AVR 120. � Delay: Press this button to begin the sequence of steps required to enter delay time settings. (See page 19 for more information on delay times.) � Digital Input Selector: When playing a source that has a digital output, press this button to select between the Optical #d and Coaxial $e Digital inputs. (See pages 23�25 for more information on digital audio.) � Main Information Display: This display delivers messages and status indications to help you operate the receiver. (See pages 7�8 for a complete explanation of the Information Display.) � Channel Select Button: Press this button to begin the process of trimming the channel output levels using an external audio source. (For more information on output level trim adjustment, see page 26.) ı Speaker Select Button: Press this button to begin the process of configuring the unit to match the type of speakers used in your listening room. (See pages 16�19 for more information on speaker setup and configuration.) � Test Tone Selector: Press this button to begin the process of adjusting the channel output levels using the internal test tone as a reference. (For more information on output level adjustment, see page 18.) � Surround Mode Indicators: A green LED will light in front of the surround mode that is currently in use. ¯ Remote Sensor Window: The sensor behind this window receives infrared signals from the remote control. Aim the remote at this area and do not block or cover it.

6 FRONT PANEL CONTROLS