Introduction
This manual provides essential instructions for the setup, operation, and maintenance of your Easytry123 RC-799M replacement infrared remote control. This remote is designed to function with various Onkyo A/V receiver models, offering a convenient solution for controlling your audio/video system.
Compatible Onkyo A/V Receiver Models:
- HT-S9300THX
- HT-SR508
- TX-SR502
- TX-NR616
- TX-SR507S
- HT-R648
- TX-NR609
- TX-SR309
- TX-SR313
Please ensure your A/V receiver model is listed above for optimal compatibility. While this replacement remote aims to replicate primary functions, some advanced or specific features of your original remote may not be fully supported.
Setup
Battery Installation
- Open the Battery Compartment: Locate the battery compartment cover on the back of the remote control. Gently slide the cover downwards or press the latch and lift to remove it.
- Insert Batteries: Insert two (2) AA batteries (not included) into the compartment. Ensure the positive (+) and negative (-) terminals of the batteries align correctly with the polarity indicators inside the compartment.
- Close the Battery Compartment: Replace the battery compartment cover by sliding it back into position until it clicks securely.

Figure 1: Battery compartment with cover removed, showing where to insert two AA batteries.

Figure 2: Rear view of the Easytry123 RC-799M remote control, showing the battery compartment cover in place.
Operating Instructions
The Easytry123 RC-799M remote control operates using infrared (IR) signals. For proper function, ensure there is a clear line of sight between the remote's IR emitter (located at the top front) and the IR receiver on your Onkyo A/V receiver. Avoid obstructions between the remote and the receiver.

Figure 3: Front view of the Easytry123 RC-799M remote control with button layout.
Key Functions Overview
Below is a general guide to the common functions of the buttons on your remote control. Refer to your Onkyo A/V receiver's original manual for specific functions and advanced settings.
| Button | Function |
|---|---|
| RECEIVER / POWER | Turns the Onkyo A/V receiver on or off. |
| SOURCE / INPUT | Selects the input source (e.g., CD, DVD, TV, AUX, NET, BD/DVD, PC, FM, USB). |
| VOL +/- | Adjusts the master volume level. |
| MUTE | Mutes or unmutes the audio output. |
| MENU / SETUP | Accesses the receiver's on-screen menu or setup options. |
| ENTER / Navigation (Up/Down/Left/Right) | Navigates through menus and confirms selections. |
| RETURN / BACK | Goes back to the previous menu or screen. |
| PLAY / PAUSE / STOP / SKIP | Controls playback functions for connected media devices (e.g., CD player, USB). |
| MODE (STEREO, GAME, etc.) | Selects various audio listening modes. |
| Numeric Keypad (0-9) | Direct input for channel numbers, track numbers, or other numerical selections. |
| SLEEP | Sets a timer for the receiver to automatically power off. |
Maintenance
Cleaning the Remote
To clean your remote control, use a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water or a mild, non-abrasive cleaner. Avoid using harsh chemicals, solvents, or abrasive materials, as these can damage the remote's surface or internal components.
Battery Replacement
Replace the batteries when the remote's response becomes sluggish or stops functioning. Always replace both batteries at the same time with new AA alkaline batteries. Do not mix old and new batteries, or different types of batteries, as this can lead to leakage or damage.
Storage
If the remote control will not be used for an extended period, it is recommended to remove the batteries to prevent potential leakage and damage to the remote.
Troubleshooting
- Remote is not responding:
- Check if the batteries are inserted correctly with the correct polarity.
- Replace the batteries with fresh ones.
- Ensure there are no obstructions between the remote and the A/V receiver's IR sensor.
- Confirm you are pointing the remote directly at the receiver.
- Some functions do not work:
- Verify that your Onkyo A/V receiver model is listed as compatible in the "Introduction" section.
- As a replacement remote, it may not support all advanced or specific functions of your original remote. Refer to your receiver's original manual for specific button mappings.
Specifications
- Brand: Easytry123
- Model: RC-799M
- Connectivity Technology: Infrared (IR)
- Power Source: 2 x AA Batteries (not included)
- Compatible Devices: Onkyo A/V Receivers (specific models listed in Introduction)
- Special Feature: Replacement remote, ergonomic design.
Warranty and Support
This product is a replacement remote control. For specific warranty information, please refer to the terms and conditions provided by the seller at the time of purchase. For technical support or further inquiries, please contact the seller directly through your purchase platform.