First, let’s clarify what you are holding. The RC-799M is the standard-issue infrared (IR) remote control for several of Onkyo’s mid-to-high-end AV receivers manufactured during the late 2000s and early 2010s.
Switches the remote control to operate the Onkyo receiver functions. Always press this button first if the remote stops responding to audio commands. onkyo rc-799m remote manual
The is a dedicated remote controller designed for specific Onkyo AV receivers, such as the HT-R391, TX-SR309, and HT-RC330. Most versions of this remote work "out of the box" for these receivers and do not require complex programming unless you are attempting to control external components like a TV or DVD player. Quick Setup & Programming First, let’s clarify what you are holding