[. . . ] HK 3390 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 install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or grounding-type plug. [. . . ] Screw the cap back into place until the wire is held snugly. Connecting Source Devices to the HK 3390 The HK 3390 is designed to process audio and video input signals, playing back the audio and displaying the video on a television or monitor connected to it. These signals originate in what are known as "source devices, " including your DVD player, CD player, DVR (digital video recorder) or other recorder, tape deck, game console, cable or 13 CONNECTIONS satellite television box, or MP3 player. Although the tuner is built into the HK 3390, it also counts as a source, even though no external connections are needed, other than the FM and AM antennas. Separate connections are required for the audio and video portions of the signal. Antennas The HK 3390 uses separate terminals for the included FM and AM antennas that provide proper reception for the tuner. See Figure 6. Analog Audio Connections Analog audio 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. See Figure 4. Analog audio cable (RCA) Figure 4 ­ Analog Audio Figure 6 ­ FM Antenna L R The AM loop antenna needs to be assembled. The AM antenna leads are polarized, and it is important to color-match the leads and terminals to maintain the proper polarity. See Figure 7. Video Connections Although some sources only produce an audio signal (e. g. , CD player, tape deck), many sources output both audio and video signals (e. g. , DVD player, cable television box, HDTV tuner, satellite box, VCR, DVR). 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 5. Composite video cable Figure 5 ­ Composite Video Figure 7 ­ AM Antenna Composite video 14 SPEAKER PLACEMENT Before you begin to connect cables, it is important to set up your speakers in their correct locations in the room. Optimally, the front left and right speakers are placed the same distance from each other as from the listening position, or about 60 degrees apart, and angled toward the listener. The subwoofer's location is less critical, since low-frequency sounds are omnidirectional. Placing the subwoofer close to a wall or in a corner will reinforce the low frequencies, and may create a "boomy" sound. You may wish to experiment over time by placing the subwoofer where the listener normally sits and then walking around the room until the low frequencies sound best. Place the subwoofer in that spot. Subwoofer Front Left Speaker Video Display (Optional) Front Right Speaker 30° 30° Figure 8 ­ Speaker Placement 15 15 INSTALLATION You are now ready to connect your various components to your receiver. Before beginning, make sure that all components, including the HK 3390, are turned completely off and their power cords are unplugged. Don't plug in any of the power cords until you have finished making all of your connections. Select a location that leaves several inches of space on all sides of the receiver. [. . . ] The tuner will automatically scan through the entire FM band, entering all stations with acceptable signal strength into the presets until either all 30 presets have been filled, or the tuner has scanned the band twice. NOTE: If there are a large number of FM stations in your area, Auto Preset will overwrite any presets you programmed previously. Stations with exceptionally strong signals may be programmed into more than one preset. Recording Two-channel analog audio signals, as well as composite video signals, are normally available at the appropriate recording outputs. Thus, to make a recording, you need only make sure to connect your audio or video recorder to the appropriate output jacks, as described in the Installation section, insert blank media and make sure the recorder is turned on and recording while the source is playing. Figure 35 ­ Tuning a Station When an FM station has been tuned, pressing the FM Mode Button will switch between stereo and mono tuning, which may improve reception of weaker stations. [. . . ]