Do you have a question about the Onkyo HT-R990 and is the answer not in the manual?
Essential guidelines for safe operation and installation of the AV receiver.
Guide for connecting AV components using HDMI cables.
Step-by-step guides for powering the AV receiver on and off.
How to assign video and audio inputs to specific selectors.
Settings for speaker setup, distance, and level calibration.
Adjusting audio modes, Dolby, DTS, Audyssey, and other sound enhancements.