Harman Kardon AVR 7550HD Owners Manual - Page 34

OPERATION The average home audio speaker sensitivity is 88dB SPL (8 ohms, 1 watt, 1 meter). Check the sensitivity specification for your loudspeakers, found in the owner's manual or on the manufacturer's Web site. If your speakers have a sensitivity rating greater than 88dB SPL, increase Calibration Offset by the difference between your speakers' sensitivity and 88dB. If they have a sensitivity rating of less than 88dB SPL, decrease Calibration Offset by the difference between your speakers' sensitivity and 88dB. To adjust the Calibration Offset, press the AVR Settings Button and scroll to the System Setup menu, then select it. Scroll to the Dolby Volume Calibration line, which defaults to 0dB. Use the 7/3 Buttons to adjust the setting within the range of -10dB to +10dB. MUTE FUNCTION To temporarily mute all speakers and the headphones, press the Mute฀Button฀on฀the฀remote.฀Any฀recording฀in฀progress฀will฀not฀ be฀affected.฀The฀MUTE฀message฀will฀appear฀in฀the฀display฀as฀a฀ reminder.฀To฀restore฀normal฀audio,฀press฀the฀Mute฀Button฀again,฀ or adjust the volume. Turning off the AVR will also end muting. SLEEP TIMER The sleep timer sets the AVR to play for up to 90 minutes and then turn off automatically. Press the Sleep Settings Button on the remote, and the time until turn-off will be displayed. Each additional press of the Sleep Button decreases the play time by 10 minutes, with a maximum of 90 minutes. The SLEEP OFF setting disables the sleep timer. When the sleep timer has been set, the front-panel display will automatically dim to half-brightness and the Volume Control will go dark. If you press the Sleep Button after the timer has been set, the remaining play time will be displayed. Press the Sleep Button again to change the play time. AUDIO EFFECTS Adjust the Dolby Volume setting, tone controls, LFE trim or equalization, or select a speaker configuration to improve performance. Access these settings from the Audio Effects submenu, as described in the Advanced Functions section. It is recommended that you leave the settings at their default values until you are more familiar with your system. VIDEO MODES The฀settings฀in฀the฀Video฀Modes฀menu฀are฀used฀to฀fine-tune฀the฀ picture, if necessary, after making all adjustments on the video display. It is recommended that you leave the settings at their defaults. See the Advanced Functions section for detailed information. HEADPHONES Plug the 1/4"-inch plug on a pair of headphones into the jack behind the front-panel door for private listening. The default Dolby Headphone bypass mode delivers a conventional 2-channel signal to the headphones. Press฀the฀Surround฀Modes฀Button฀on฀the฀front฀panel฀or฀the฀remote,฀ to switch to Dolby Headphone virtual surround processing, which emulates a 5.1-channel speaker system. No other surround modes are available for the headphones. SOURCE SELECTION Press the front-panel Source List Button. Use the 1/5 Buttons to scroll through the sources. Using the on-screen menus, press the AVR Settings Button, highlight "Source Select" and press the OK Button. Scroll to the desired source in the slide-in menu and press the OK Button. For direct access to any source, press its Source Selector on the remote. To directly select Source A, B, C or D, first press the AVR Settings Button, then press the appropriate Soft Key: red for Source A, green for Source B, yellow for Source C or blue for Source D. When using the Zone 2 remote, make sure to connect the Zone 2 Video Output to a display in the remote zone, and select these sources using the on-screen menu system. The AVR selects the audio and video inputs assigned to the source, and any other settings made during setup. The source name, the audio and video inputs assigned to the source, and the surround mode will appear on the front panel. The source name and surround mode will also appear on screen. VIDEO TROUBLESHOOTING TIPS: If there is no picture: •฀฀Check฀the฀source฀selection฀and฀video฀input฀assignment. •฀Check฀the฀wires฀for฀a฀loose฀or฀incorrect฀connection. •฀฀Check฀the฀video฀input฀selection฀on฀the฀display฀device฀(TV Press฀the฀front-panel฀Resolution฀Button฀and฀use฀the฀ 1/5 Buttons until the correct video output resolution is selected and a picture appears. The CANCEL message will appear. Press the 5Button to view the ACCEPT option, then press the OK Button. Additional Tips for HDMI Connections: •฀฀Turn฀off฀all฀devices฀(including฀the฀TV,฀AVR฀and฀any฀source฀ components). •฀฀Unplug฀the฀HDMI฀cables,฀starting฀with฀the฀cable฀between฀ the TV and AVR, and continuing with the cables between the AVR and each source device. •฀฀Carefully฀reconnect฀the฀cables฀from฀the฀source฀devices฀to฀ the AVR. Connect the cable from the AVR to the TV last. •฀฀Turn฀on฀the฀devices฀in฀this฀order:฀TV,฀AVR,฀source฀devices. USING THE TUNER To select the AVR 7550HD's built-in tuner: 1. Press the Source List Button on the front panel. Use the 1/5 Buttons to scroll to the desired tuner band. 2. Press the Radio Source Selector on the remote. Press it again to฀switch฀bands฀(AM,฀FM฀or฀XM). A screen similar to the one shown in Figure 25 will appear. The฀XM฀band฀uses฀a฀different฀screen.฀ 35