Operation
IMPORTANT NOTES ON DIGITAL
PLAYBACK:
1.When the digital playback source is stopped, or in a pause, fast forward or chapter search mode, the digital audio data will momentarily stop, and the channel position letters inside the Speaker/Channel Indicators Pwill flash. This is normal and does not indicate a problem with either the AVR 1550 or the source machine. The AVR 1550 will return to digital playback as soon as the data is available and when the machine is in a standard play mode.
2.Although the AVR 1550 will decode virtually all DVD movies, CDs and HDTV sources, it is possible that some future digital sources may not be com- patible with the AVR 1550.
3.Note that not all digitally encoded programs and not all audio tracks on a DVD contain full
4.When a Dolby Digital or DTS source is playing, you normally may not be able to select some of the analog surround modes such as Dolby Pro Logic II, Dolby 3 Stereo, Hall, Theater or 5CH Stereo, except with special audio tracks
(see indication ”Dolby Digital” on previous page) or data format selected (see ”PCM” on previous page).
5.When a Dolby Digital or DTS source is playing, it is not possible to make an analog recording
using the Tape or Video 1 record out- puts, if the source is connected to any digital input of the AVR 1550 only.
Tape Recording
In normal operation, the audio or video source selected for listening through the AVR 1550 is sent to the record outputs. This means that any program you are watching or listening to may be recorded simply by placing machines connected to the outputs for Tape Outputs or Video
1 Outputs in the record mode.
When a digital audio recorder is connected to the Coaxial Digital Audio Outputs , you are able to record the digital signal using a
NOTES:
•The digital outputs are active only when a digi- tal signal is present, and they do not convert an analog input to a digital signal, or change the for- mat of the digital signal (e.g. Dolby Digital to
PCM or vice versa, but optical digital input signals are converted to coaxial signals). In additon, the digital recorder must be compatible with the out- put signal. For example, the PCM digital output from a CD player may be recorded on a
Output Level Trim Adjustment
Normal output level adjustment for the
AVR 1550 is established using the test tone, as outlined on pages 17 and 18. In some cases, however, it may be desirable to adjust the out- put levels using program material such as a test disc, or a selection you are familiar with. Additionally, the output level for the subwoofer and those for the Stereo mode can only be adjusted using this procedure.
To adjust the output levels using program mate- rial, first select the surround mode for which you want to trim the speakers (see NOTE below) by selecting the appropriate input, associated with the desired surround mode, start your program material source and set the reference volume for the front left and front right channels using the Volume Control (I.
Once the reference level has been set, press the Channel Select button B#and note that FL LEVEL will appear in the Main Information Display Mfor five seconds. To change the level, first press the Enter button
Eon the remote control, or the Set button on the front Ó, and then use the Selector but- tons &or the ⁄/¤ buttons Cto raise or lower the level. DO NOT use the volume control, as this will alter the reference setting.
Once the change has been made, press the Enter button Eon the remote control, or the Set button on the front Óand then press the Selector buttons &or the ⁄/¤ buttons C to select the next output channel location that you wish to adjust. To adjust the subwoofer level, press the Selector buttons &or the ⁄/¤ buttons Cuntil SW LEVEL appears in the Main Information Display M(only available if the subwoofer was selected during the speaker configuration, see page 14).
Press the Enter button Eon the remote control, or the Set button on the front Ówhen the name of the desired channel appears in the Main Information Display Mand
Repeat the procedure as needed until all channels requiring adjustment have been set. When all adjustments have been made press the Enter button Eon the remote control, or the Set button on the front Ótwice, the AVR 1550 will return to normal operation.
NOTE: The output levels may be separately trimmed for each digital and analog surround mode. If you wish to have different trim levels for a specific mode, select that mode and then follow the instructions in the steps shown above.
Changing the levels by the trim adjustment as described above will automatically change the level settings shown during the Output Level Adjustment (see page 17) correspondingly (and vice versa) and will remain in the AVR 1550´s memory system, even when the unit is turned off. With Stereo mode the adjustment procedure described above is the only way to trim the out- put level.
Display Brightness
The AVR 1550’s front panel Main Information Display *is set at a default brightness level that is sufficient for viewing in a normally lit room. However, in some home theater installa- tions, you may wish to occasionally lower the brightness of the display, or turn it off completely.
The display brightness may be changed by pressing and holding the Set button Óon the front for three seconds until the message in the Main Information Display Mreads VFD FULL. Within five seconds, press the front panel ‹/ › buttons &until the desired bright- ness display level is shown. At that point, press the Set button Óagain to enter the setting.
Memory Backup
This product is equipped with a memory backup system that preserves tuner presets and system configuration information if the unit is turned off completely, accidentally unplugged or subjected to a power outage. This memory will last for approximately two weeks, after which time all information must be reentered.
OPERATION 23
