User manual HARMAN KARDON HK 3490

[. . . ] HK 3490 STEREO RECEIVER OWNER'S MANUAL SAFETY INFORMATION Important Safety Instructions Read these instructions. The A/V receiver's cabinet may be cleaned by gently wiping with a soft cotton or microfiber cloth. Do not use water or any liquid cleaners. Do not block any of the ventilation openings. [. . . ] In addition to the audio connection, make a video connection for each of these sources. The composite video jack is usually color-coded yellow, and looks like an analog audio jack, although it is important never to confuse the two. Do not plug a composite video cable into an analog audio jack, and vice versa. Both the chrominance (color) and luminance (intensity) components of the video signal are transmitted using a single cable. See Figure 7. Composite video cable Figure 7 ­ Composite Video Audio Connections There are two formats for audio connections: digital and analog. Digital audio signals offer improved quality, free of distortion and with greater detail and presence. The HK 3490 uses two types of digital audio connections: coaxial and optical. Either type of digital audio connection may be used for each source device, but never both simultaneously for the same source. However, it's alright to make both analog and digital audio connections to the same source. Composite video Digital Audio Coaxial digital audio jacks are usually color-coded in orange. Although they look similar to analog jacks, they should not be confused, and you should not connect coaxial digital audio outputs to analog inputs or vice versa. See Figure 4. Coaxial digital audio cable Figure 4 ­ Coaxial Digital Audio Antennas The HK 3490 uses separate terminals for the included FM and AM antennas that provide proper reception for the tuner. The FM antenna uses a 75-ohm F-connector. See Figure 8. Coaxial Optical digital audio connectors are normally covered by a shutter to protect them from dust. The shutter opens as the cable is inserted. Input connectors are color-coded using a black shutter, while outputs use a gray shutter. See Figure 5. Optical digital audio cable Figure 5 ­ Optical Digital Audio Figure 8 ­ FM Antenna Optical The AM loop antenna needs to be assembled. Connect the two leads to the spring terminals on the receiver. The AM antenna leads are polarized, and it is important to color-match the leads and terminals to maintain the proper polarity. See Figure 9. Analog Audio Analog connections require two cables, one for the left channel (white) and one for the right channel (red). These two cables are often attached to each other for most of their length. Most sources that have digital audio jacks also have analog audio jacks, although some older types of sources, such as tape decks, have only analog jacks. For sources that are capable of both digital and analog audio, you may wish to make both connections. [. . . ] Each button press will cycle through the three settings of: VFD FULL: Normal brightness VFD HALF: Display is dimmed but still visible; the light inside the volume knob goes dark VFD OFF: Display goes completely dark except for Power Indicator to remind you that the receiver is turned on NOTE: When the remote is in the device mode for either the Video 1 or Video 2 source, the Dimmer Button on the remote will only affect the source device (if compatible), and will not affect the HK 3490. Processor Reset If you wish to fully reset the HK 3490 to its factory defaults, or if it behaves erratically after a power surge, first turn the Master Power Switch off and unplug the AC power cord for at least three minutes. Plug the cord back in and turn the receiver back on. If this doesn't help, you may want to try a system reset. NOTE: A system reset erases all user configurations, including tuner presets. [. . . ]