Onkyo TX-NR747 User Manual - Page 97

that support DVD, the default setting is off. ●● With some DVD-Video discs, you need to select an audio output format from a menu. „„One of the speakers produces no sound ●● Make sure that the polarity of the speaker cables is correct, and that no bare wires are in contact with the metal part of speaker terminals. ●● Make sure that the speaker cables are not shorting. ●● Make sure the speakers are configured correctly. „„Only the front speakers produce sound ●● When the Stereo or Mono listening mode is selected, only the front speakers and subwoofer produce sound. „„Only the center speaker produces sound ●● If you use the Dolby Surround listening mode with a mono source, such as an AM radio station or mono TV program, the sound is concentrated in the center speaker. „„The surround speakers produce no sound ●● When the T-D (Theater-Dimensional), Stereo or Mono listening mode is selected, the surround speakers produce no sound. ●● Depending on the source and current listening mode, not much sound may be produced by the surround speakers. Try selecting another listening mode. „„The center speaker produces no sound ●● When the Stereo or Mono listening mode is selected, the center speaker produces no sound. „„No sound from the back speakers and height speakers ●● Depending on the source and current listening mode, not much sound may be produced by the speakers. Try selecting another listening mode. „„The subwoofer produces no sound ●● When the input signal does not include a subwoofer audio element (LFE), the subwoofer may not produce sound. „„Volume is low ●● Check the volume. The volume level is adjustable between Min, 1 to 99, Max (100). A level of around 40 is normal in a domestic environment. „„There is no sound from a connected turntable. ●● If your turntable uses an MC cartridge, you must connect an audio equalizer and either an MC head amp or an MC transformer. „„Noise can be heard ●● Using cable ties to bundle audio cables with power cords, speaker cables, etc. may degrade the audio performance, so refrain from doing it. ●● An audio cable may be picking up interference. Try repositioning your cables. „„The sound changes when I connect my headphones ●● When a listening mode other than Direct, Pure Audio (European, Australian and Asian models), or Mono is selected, connecting a headphone automatically selects Stereo. „„About DTS signals ●● When DTS program material ends and the DTS bitstream stops, the unit remains in DTS listening mode and the dts indicator remains on. This is to prevent noise when you use the pause, fast forward, or fast reverse function on your player. If you switch your player from DTS to PCM, you may not hear any sound because the unit does not switch formats immediately. In such case, you should stop your player for about 3 or more seconds and then resume playback. ●● With some CD and LD players, you will not be able to playback DTS material properly even though your player is connected to a digital input on the unit. This is usually because the DTS bitstream has been processed (e.g., output level, sampling rate, or frequency response changed) and the unit does not recognize it as a genuine DTS signal. In such cases, you may hear noise. ●● When playing DTS program material, using the pause, fast forward, or fast reverse function on your player may produce a short audible noise. This is not a malfunction. „„The beginning of audio received by an HDMI IN cannot be heard ●● Since it takes longer to identify the format of an HDMI signal than it does for other digital audio signals, audio output may not start immediately. „„The volume has suddenly dropped ●● If this unit is used for a long time even after the internal temperature of this unit exceeds a certain threshold, the volume may be lowered automatically to protect the circuitry. Listening Mode ●● When listening to Dolby Digital and/or DTS sound, digital connection is necessary. Troubleshooting ●● Check the digital audio output setting on the connected component. On some game consoles, such as those that support DVD, the default setting is off. ●● After pressing RECEIVER on the remote controller, repeatedly press DISPLAY to switch the display on the main unit. You can see the input format. If the above does not solve the problem, check the following. „„Cannot select a desired listening mode ●● Depending on the connecting status of the speaker, some listening modes may not be selected. Check the details in "Selectable Listening Modes" section. „„There is no sound with Dolby Atmos ●● You need to have either back speakers or height speakers connected. After connecting each of the speakers, make sure the connection settings in "Configuration" - "Speaker Channels" are correct. ●● Dolby Atmos play is only possible when the input signal is Dolby Atmos. „„Cannot select the Pure Audio listening mode (European, Australian and Asian models) ●● The Pure Audio listening mode cannot be selected while Zone 2 is on. Video ●● Check that the output jack of the connected equipment and the input jack of this unit are connected correctly. ●● Make sure that none of the connecting cables are bent, twisted, or damaged. ●● Make sure the switching of input screens is proper at the monitor side such as a TV. If the above does not solve the problem, check the following. „„There is no picture from a source connected to an HDMI IN ●● The input selector of this unit needs to be in the position that corresponds to the jack where the player is connected. ●● While the Pure Audio (European, Australian and Asian models) listening mode is selected only video signals input through HDMI IN can be output. ●● Check if "Resolution Error" is displayed on the main unit display when video input via HDMI IN jack is not En-65