The basic manual explains setup, connections, initial settings, playback and troubleshooting for the Onkyo TX‑NR646 AV receiver.
This basic manual provides the essential information needed to start using the Onkyo TX‑NR646 AV receiver. It covers speaker wiring, TV and player connections, other input options, initial configuration, playback functions and basic troubleshooting.
Key sections include detailed front‑panel and rear‑panel diagrams, step‑by‑step wiring instructions, network setup (Wi‑Fi, Ethernet, DLNA, AirPlay), HDMI features (4K, ARC, HDMI Standby Through) and a full specification table for power, audio and video performance. This manual is written in Chinese.
| Rated output power | 7 ch × 160 W (6 Ω, 1 kHz) |
|---|---|
| Maximum output power | 7 ch × 175 W (6 Ω, 1 kHz) |
| THD+N | 0.08 % (20 Hz‑20 kHz, half power) |
| Input sensitivity (LINE) | 200 mV/47 kΩ (1 kHz, 100 W/8 Ω) |
| Speaker impedance range | 4 Ω‑16 Ω (6 Ω‑16 Ω) |
It provides two HDMI output ports.
The receiver supports speakers with an impedance of 4 Ω to 16 Ω (6 Ω‑16 Ω recommended).
Connect the HDMI OUT MAIN to the TV’s HDMI IN that supports ARC and enable ARC in the receiver’s settings.
The receiver supports video up to 4K 60 Hz (RGB/YCbCr 4:4:4 or 4:2:2, 24 bit).