Onkyo Rc-799m Remote Manual -

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Press and hold the Remote Mode button (e.g., TV or CBL/SAT) while simultaneously holding the Display button for about 3 seconds until the indicator light stays on.

Swap out both batteries for fresh Alkaline cells. Do not mix old and new batteries. If the issue persists, internal dust accumulation may require physical button pad cleaning. Issue 3: Infrared signal range is drastically shortened

Used to control audio playback in secondary rooms.

Press and hold the remote mode button and the HOME button simultaneously for more than 3 seconds.

The RC-799M is a pre-programmed infrared (IR) replacement remote control designed specifically for a wide range of Onkyo AV receivers and home theater systems. It’s a popular aftermarket option for replacing lost, broken, or worn-out original remotes. Sold by various third-party manufacturers, it is not always an exact original equipment manufacturer (OEM) duplicate, and some versions may lack certain features found on the genuine remote.

The RC-799M was included with a wide variety of Onkyo devices. The specific button layout and secondary functions may vary slightly depending on the receiver model it was paired with, but the general operation remains the same.