To Next PageTo Next PageWhat to do if my Onkyo TX-NR646 Receiver turns off unexpectedly?
If your Onkyo Receiver turns off unexpectedly, it's possible the protection circuit has been activated. When you turn the unit back on, check the main display for "AMP Diag Mode", which indicates the unit will enter a mode to detect abnormal conditions.
Why is there no sound coming from my Onkyo TX-NR646?
If you're not getting any sound or the sound is very quiet on your Onkyo Receiver, make sure that you have selected the correct input for your player using the input selector button. Also, verify that muting is not enabled.
How to fix video and audio sync issues on Onkyo TX-NR646?
Problems with video and audio synchronization on your Onkyo Receiver may be solved by simply turning the power on and off or disconnecting and reconnecting the power cord.
How to fix Onkyo TX-NR646 Receiver when it cannot access the network?
If you're having trouble accessing the network with your Onkyo Receiver, try unplugging and plugging back in both the unit and your wireless LAN router, or check to ensure they are powered on. This action often resolves the issue.
What to do if there's no picture from my Onkyo Receiver?
If there is no picture on your TV when using the Onkyo Receiver, check that the correct input selector button has been selected. Also, if the TV image is blurry or unclear, the power cord or connection cables of the unit may have interfered, causing the display and the unit to return to standby.
General| Impedance | 16 Ω |
|---|---|
| Receiver type | - |
| Frequency range | 10 - 100000 Hz |
| Output impedance | 470 Ω |
| Input sensitivity | 200 mV |
| Audio output channels | 7.2 channels |
| Signal-to-Noise Ratio (SNR) | 100 dB |
| Total Harmonic Distortion (THD) | 0.08 % |
| Dynamic power per channel (3 Ohm) | 240 W |
| Dynamic power per channel (4 Ohm) | 210 W |
| Dynamic power per channel (8 Ohm) | 120 W |
| Power output per channel (20-20KHz@8 Ohm) | 160 W |
| HDMI in | 8 |
| Composite video in | 3 |
| Digital audio coaxial in | 1 |
| Component video (YPbPr/YCbCr) in | 2 |
| Audio formats supported | AAC, FLAC, LPCM, MP3, OGG, WAV, WMA |
| Wi-Fi | Yes |
| Ethernet LAN | No |
| Bluetooth version | 2.1+EDR |
| Bluetooth profiles | A2DP, AVRCP |
| AM band range | 522 - 1710 kHz |
| FM band range | 87.5 - 107.9 MHz |
| Supported radio bands | AM, FM |
| Preset stations quantity | 40 |
| Product color | Silver |
| Audio decoders | Dolby TrueHD, DTS-HD Master Audio |
| Damping factor | 60 |
| AC input voltage | 220-240 V |
| AC input frequency | 50 - 60 Hz |
| Power consumption (standby) | 0.15 W |
| Power consumption (typical) | 630 W |
| Package weight | 12500 g |
| Package depth | 423 mm |
| Package width | 570 mm |
| Package height | 287 mm |
Weight and Dimensions| Depth | 329 mm |
|---|---|
| Width | 435 mm |
| Height | 173.5 mm |
| Weight | 9400 g |
Comprehensive list of the AV receiver's capabilities, front/rear panel details, and display indicators.
Comprehensive guide for connecting speakers, TV, players, and other components to the receiver.
Guided setup for AccuEQ calibration, source connection, remote setup, and network configuration.
Instructions for operating the receiver, network functions, Bluetooth, AM/FM radio, and listening modes.
Covers troubleshooting, specifications, HDMI resolutions, precautions, licenses, and trademarks.
In-depth guide to tuning, presets, RDS, and PTY for AM/FM radio reception.
Instructions for playing music from USB devices.
Guide to using TuneIn, Pandora, Spotify, SiriusXM, and Slacker for internet radio playback.
Steps for streaming music files from DLNA servers like PCs or NAS devices.
Instructions for accessing and playing music from shared folders on PCs or NAS devices.
Using the remote controller to manage and play music files from various sources.
Explanation and selection of various audio listening modes for different content types.
Detailed configuration options for audio, video, speakers, network, and system settings.
Instructions for updating the receiver's firmware via network or USB.
Solutions for common problems encountered during operation.
Information on controlling CEC-compatible devices via HDMI linked operation.
Explanation of HDMI interface, supported formats, and functions.
Components and setup needed for establishing a home network connection.
Requirements for PC or media servers used for music file playback.
List of audio file formats supported for playback via network and USB.
Information regarding 2.4 GHz radio wave frequencies and potential interference.
Guidelines for safe operation and environmental considerations for the AV receiver.
Extensive lists of remote control codes for various TV, DVD, IPTV, and Receiver brands.
