Harman Kardon HK 3485, Service Manual

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FRONT-PANEL CONTROLS
Power Switch:
This electrical switch turns the receiver on for
playback, or leaves it in Standby mode for quick turn-on using the
remote control.
Power Indicator:
This LED has two modes. When power is
turned off, the LED is amber to indicate that the receiver is plugged
in and ready to be turned on. When the receiver is turned on, the
LED turns blue.
Headphone Jack:
Plug a 1/4" headphone plug into this jack for
private listening.
Mute:
Press this button to mute the HK 3485’s speaker and head-
phone outputs temporarily. To end the muting, press this button or adjust
the volume. Muting is also canceled when the receiver is turned off.
Speaker 1/2:
Press the left side of this button to enable the
HK 3485 to output audio to the speakers connected to the Speaker 1
Outputs, and press the right side of the button to enable the Speaker 2
Outputs. You may enable or disable both sets of speaker outputs simul-
taneously. This feature is a convenient way of hearing audio in more
than one room at a time, although the same source material will be
played through both sets of speakers.
Tuning:
Press either side of this button to tune a radio station. Tap the
button briefly to tune one frequency step at a time, or press and hold
the button to seek the next frequency with an acceptably strong signal.
Preset Scan:
Press this button once to scan through the stations
you have previously programmed as presets. Each station will play for
five seconds before the tuner skips to the next preset station. Press the
button a second time to select the current station. If no presets have
been programmed, the 0 PRESET message will be displayed.
Preset Stations:
Press this button to select a preset radio station.
If no presets have been programmed, the 0 PRESET message will
be displayed.
Tuner Band:
Press this button to select the tuner as the source, or
to select the AM (right side of button) or FM (left side of button) band.
FM Mode:
This button toggles between Stereo and Mono modes
when an FM station is tuned. Mono mode may improve reception of
weaker signals.
Bass Control:
Turn the knob clockwise to boost low-frequency output
by up to 10dB, or counterclockwise to cut low-frequency output by up
to 10dB. Set the control to suit your taste and room acoustics.
Video 3, Analog Audio and Video Inputs:
Connect a source
component that will only be used temporarily to these jacks, such as
a camera or game console, or connect an iPod using the supplied
audio/video cable.
Balance Control:
Turn the knob to adjust the relative volume of the
left and right channels, which affects imaging and can compensate for
room characteristics.
Volume Control:
Turn this knob to raise or lower the volume, which
will be shown in decibels (dB) in the Message Display.
Treble Control:
Turn the knob clockwise to boost high-frequency
output by up to 10dB, or counterclockwise to cut high-frequency output
by up to 10dB. Set the control to suit your taste and room acoustics.
Sleep:
Press this button to activate the sleep timer, which shuts off the
receiver after a programmed period of time up to 90 minutes.
Dimmer:
Some people find the front-panel display distracting. Press
this button once to dim the displays to half-brightness, and a second
time to turn the displays completely off. The Power Indicator will always
remain lit to remind you that the receiver is turned on. Press the button
a third time to return the display to normal brightness. This setting is
canceled when the unit is turned off.
Message Display:
Various messages appear in this display in
response to commands.
Video Source Selectors:
Press any of these buttons to select
the device connected to the corresponding Audio and Video Inputs for
playback. Remember to turn on the source device, to connect the Video
Monitor Output to your video display and to turn on your video display
and select the correct Video Input.
NOTE: The Video 3 source device may be connected to either
the front- or rear-panel connectors. To select the desired device,
press the Video 3 Source Selector repeatedly until the dot to
the left of the Video 3 Indicator in the Message Display lights
steadily (rear-panel connections selected) or flashes (front-panel
connections selected).
CD Source Selector:
Press this button to select the device
connected to the CD Inputs as the source.
Tape Source Selector:
Press this button to select the device
connected to the Tape/CDR Audio Inputs as the source. If you are
making a recording using a three-head tape deck or another unit with
off-head playback, the dot to the left of the Tape Monitor Indicator in
the Message Display will flash when the recording is being monitored.
Phono Source Selector:
Press this button to select a turntable
connected to the Phono Inputs as the source.
HK 3485 OM 2/15/07 4:20 PM Page 7
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HK3485
harman/kardon