This manual introduces the functions and usage of Onkyo AV receiver TX-SR505.
This manual begins with safety warnings and installation guidelines, describing how to avoid electrical shock, protect the unit from moisture, and correctly position the receiver. It lists the supplied accessories, explains the voltage selector settings, and details the front‑panel controls.
The later sections cover connecting speakers, antennas, and audio/video sources, as well as basic and advanced operation such as volume control, tone adjustment, Audyssey 2EQ setup, and remote‑control programming. Troubleshooting tips and maintenance advice are also included.
| Impedance | 75 Ω |
|---|---|
| Frequency Response | 20 Hz – 20 kHz |
| Minimum RMS Power | 8 W |
| THD | <0.08 % |
| Voltage Selector | 120 V or 220‑240 V |
Read all warnings, keep the unit away from moisture, do not open the chassis, and have any service performed by qualified personnel.
Press the INPUT SELECT key (labelled ⑥) or the MULTI‑CH key to choose the desired audio or video source.
Set the selector to 120 V for North America or 220‑240 V for regions with higher mains voltage, matching the local power specifications.