Troubleshooting

If you have any trouble using the AV receiver, look for a solution in this section. If you can’t resolve the issue yourself, contact your Onkyo dealer.

If you can’t resolve the issue yourself, try resetting the AV receiver before contacting your Onkyo dealer.

To reset the AV receiver to its factory defaults, turn it on and, while holding down the [VCR/DVR] button, press the [STANDBY/ON] button. “Clear” will appear on the display and the AV receiver will enter Standby mode.

STANDBY/ON

VCR/DVR

Note that resetting the AV receiver will delete your radio presets and custom settings.

Power

Can’t turn on the AV receiver

Make sure that the power cord is plugged into the wall outlet properly.

Unplug the power cord from the wall outlet, wait 5 seconds or more, then plug it back in again.

The AV receiver turns off as soon as it’s turned on

The amp protection circuit has been activated. Remove the power cord from the wall outlet immedi- ately. Disconnect all speaker cables and input sources, and leave the AV receiver with its power cord discon- nected for 1 hour. After that, reconnect the power cord and set the volume to maximum. If the AV receiver stays on, set the volume to minimum, disconnect the power cord, and reconnect your speakers and input sources. If the AV receiver turns off when you set the volume to maximum, disconnect the power cord, and contact your Onkyo dealer.

Audio

There’s no sound or it’s very quiet

Make sure that the digital input is assigned to the input selector (page 58).

Make sure that the correct audio input is selected (page 78).

Make sure that all audio connecting plugs are pushed in all the way (page 33).

Make sure that the polarity of the speaker cables is correct, and that the bare wire is in contact with the metal part of each speaker terminal (page 25).

Make sure that the speaker cables are not shorting.

Check the volume (page 68). The AV receiver is designed for home theater enjoyment and has a wide volume range for precise adjustment.

If the MUTING indicator is flashing on the display, press the remote controller’s [MUTING] button to unmute the AV receiver (page 76).

While a pair of headphones is connected to the PHONES jack, no sound is output by the main room speakers (page 77).

Check the digital audio output settings on the source component. On some game consoles, such as those that can play DVDs, the default setting is off.

With some DVD-Video discs, you need to select an audio format from a menu or with the AUDIO button on your DVD player’s remote controller.

If your turntable uses an MC cartridge, you must use an MC head amp or MC transformer (page 46).

Check the speaker settings (pages 94–101).

If the digital signal format is set to PCM or DTS, set it to Auto (page 78).

If there’s no sound from a DVD player connected to an HDMI IN, check the DVD player’s output settings, and be sure to select a compatible audio format.

Only the front speakers produce sound

When the Stereo listening mode is selected, only the front speakers and subwoofer produce sound.

In the Mono listening mode, only the front speakers output sound if the Output Speaker setting is set to L/R (page 91).

Check the Speaker Configuration (page 94).

Only the center speaker produces sound

If you use the Dolby Pro Logic IIx Movie or Dolby Pro Logic IIx Music listening mode with a mono source, such as an AM radio station or mono TV pro- gram, the sound will be concentrated in the center speaker.

In the Mono listening mode, only the front speakers output sound if the Output Speaker setting is set to C (page 91).

Check the Speaker Configuration (page 94).

The surround speakers produce no sound

When the Stereo or Mono listening mode is selected, the surround speakers produce no sound.

Depending on the source and the current listening mode, not much sound may be produced by the sur- round speakers. Try another listening mode (page 79).

Check the Speaker Configuration (page 94).

The center speaker produces no sound

When the Stereo listening mode is selected, the center speaker produces no sound.

In the Mono listening mode, only the front speakers output sound if the Output Speaker setting is set to L/R (page 91).

Check the Speaker Configuration (page 94).

The surround back speakers produce no sound

The surround back speakers are not used with all lis- tening modes. Try another listening mode (page 79).

Not much sound may be produced by the surround back speakers with some sources.

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TX-NR905 specifications

The Onkyo TX-NR905 is a high-performance home theater receiver that epitomizes advanced audio engineering and user-friendly features. This powerhouse was designed for audiophiles and home theater enthusiasts who demand superior sound quality and a wide array of capabilities.

One of the standout features of the TX-NR905 is its 7.1 channel surround sound, delivering an immersive audio experience suitable for any cinematic environment. The receiver boasts an impressive power output, ensuring dynamic and clear sound across all frequency ranges. With the integration of Onkyo’s High Current Amplification System, users can enjoy powerful sound without distortion, even at high volumes.

The TX-NR905 supports various audio formats, including Dolby TrueHD, DTS-HD Master Audio, and other high-resolution audio technologies. This makes it an excellent choice for those looking to enjoy the latest high-definition movies and music with studio-quality sound. Moreover, the inclusion of Audyssey MultEQ XT technology allows for automated room calibration, ensuring that the listening environment is tuned for optimal performance, regardless of room acoustics.

Connectivity is another area where the TX-NR905 excels. The receiver features multiple HDMI inputs and outputs, supporting 1080p video and beyond, allowing seamless integration with modern video sources such as Blu-ray players, streaming devices, and gaming consoles. In addition to HDMI, the receiver includes legacy inputs such as component and composite video, ensuring compatibility with older devices.

The Onkyo TX-NR905 also features a user-friendly interface, with an intuitive remote control and an on-screen display that facilitates easy navigation through settings and options. For modern users, built-in Wi-Fi and Ethernet connectivity allow for wireless streaming from popular services like Spotify, Pandora, and others, broadening the listening options available.

Finally, with its solid construction and sleek design, the Onkyo TX-NR905 not only performs exceptionally but also adds a touch of elegance to any home theater setup. With a blend of high-quality audio, smart features, and robust connectivity, the TX-NR905 stands out as a great option for elevating your home entertainment system. Whether watching movies, playing games, or listening to music, the Onkyo TX-NR905 provides an experience that is both versatile and immersive.