Introduction
This manual provides comprehensive instructions for the MONSIATUG RM-AAU106 replacement remote control. This remote is designed to be compatible with Sony AV Receiver models STR-DH720, STR-DH720HP, and STR-DH730. Please read this manual carefully to ensure proper setup and operation of your remote control.
Setup
1. Battery Installation
The MONSIATUG RM-AAU106 remote control requires two AA batteries (not included) for operation.
- Locate the battery compartment on the back of the remote control.
- Slide the battery compartment cover downwards or in the direction indicated by an arrow to open it.
- Insert two new AA batteries, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Replace the battery compartment cover by sliding it back into position until it clicks securely.
Note: No programming is required for this replacement remote control. Once batteries are installed, it is ready for use with compatible Sony AV receivers.
2. Compatibility
This remote control is specifically designed to be compatible with the following Sony AV Receiver models:
- Sony STR-DH720
- Sony STR-DH720HP
- Sony STR-DH730
If your AV receiver model is not listed, please contact customer support for assistance.
Operating Instructions
Point the remote control directly at the infrared sensor on your Sony AV receiver. Ensure there are no obstructions between the remote and the receiver.

This image displays the MONSIATUG RM-AAU106 replacement remote control, showing its button layout and ergonomic design.
Common Button Functions
- POWER: Turns the AV receiver on or off.
- INPUT SELECTOR (e.g., DVD, BD, TV, SAT/CATV): Selects the desired audio/video input source.
- VOLUME +/-: Increases or decreases the master volume level.
- MUTE: Mutes or unmutes the audio output.
- MENU / HOME: Accesses the receiver's on-screen menu or home screen.
- NAVIGATION BUTTONS (Up, Down, Left, Right, ENTER): Used to navigate through menus and confirm selections.
- RETURN / BACK: Returns to the previous menu or screen.
- SOUND FIELD / MODE: Cycles through various sound modes or sound fields.
- TUNER (AM/FM): Selects AM or FM radio bands.
- PRESET +/-: Navigates through radio presets.
Refer to your Sony AV receiver's original manual for detailed functions of specific buttons if needed.
Maintenance
Battery Replacement
Replace batteries when the remote control's response becomes sluggish or stops functioning. Always replace both batteries at the same time with new AA batteries. Do not mix old and new batteries, or different types of batteries.
Cleaning
To clean the remote control, gently wipe it with a soft, dry cloth. Do not use liquid cleaners, abrasive pads, or chemical solvents, as these can damage the remote's surface or internal components.
Storage
Store the remote control in a cool, dry place away from direct sunlight and extreme temperatures. If the remote will not be used for an extended period, it is recommended to remove the batteries to prevent leakage.
Troubleshooting
- Remote is not responding:
- Ensure batteries are inserted correctly with the correct polarity (+/-).
- Replace old batteries with new AA batteries.
- Check for any obstructions between the remote control and the AV receiver's infrared sensor.
- Ensure you are within the effective range and pointing the remote directly at the receiver.
- Only some buttons are working:
- This remote is designed for specific Sony AV receiver models. Verify your receiver model is STR-DH720, STR-DH720HP, or STR-DH730.
- Some functions may require specific modes on your AV receiver (e.g., tuner functions only work when the tuner input is selected).
- Receiver is not turning on/off:
- Confirm the AV receiver is plugged into a working power outlet.
- Try pressing the power button directly on the AV receiver.
If troubleshooting steps do not resolve the issue, please contact customer support.
Specifications
| Model Number: | RM-AAU106 |
| Brand: | MONSIATUG |
| Compatible Devices: | Sony STR-DH720, STR-DH720HP, STR-DH730 AV Receivers |
| Battery Type: | 2 x AA (not included) |
| Color: | Black |
| Item Weight: | 3.2 ounces |
| Package Dimensions: | 9.65 x 4.41 x 1.3 inches |
| Special Feature: | Ergonomic |
Warranty and Support
Warranty Information
This MONSIATUG remote control comes with a 120-day warranty from the date of purchase. This warranty covers manufacturing defects under normal use. Please retain your proof of purchase for warranty claims.
Customer Support
For any questions, technical assistance, or if your specific model is not listed as compatible, please contact MONSIATUG customer support. Contact details are typically available on the product packaging or the retailer's website where the product was purchased.