1. Introduction
This manual provides instructions for the ALLIMITY RMT-AM330U replacement infrared remote control. This remote is designed to operate various Sony Home Audio Systems. Please read this manual carefully before using the remote control to ensure proper operation and to maximize its functionality with your audio system.
2. Setup
2.1 Battery Installation
The RMT-AM330U remote control requires two (2) AAA batteries for operation. Follow these steps to install the batteries:
- Locate the battery compartment cover on the back of the remote control.
- Slide the cover downwards or press the latch (if present) and lift to open the compartment.
- Insert two AAA 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 place until it clicks securely.

Image: Rear view of the RMT-AM330U remote control with the battery cover removed, illustrating the correct placement of two AAA batteries within the compartment.
2.2 Initial Use
This is an infrared (IR) replacement remote control. No programming or pairing is required. Once the batteries are correctly installed, the remote control is ready for immediate use with compatible Sony Home Audio Systems.
3. Operating Instructions
3.1 General Operation
To operate your Sony Home Audio System using the RMT-AM330U remote control, aim the remote directly at the infrared sensor on your audio unit. Ensure there are no obstacles between the remote control and the audio system's sensor that could block the signal.

Image: Front view of the RMT-AM330U remote control, displaying the layout and labeling of all functional buttons.
3.2 Button Functions Overview
The remote control features various buttons for controlling your audio system. Common functions include:
- Power Button (⏻): Turns the audio system on or off.
- Volume Up/Down (+ / - VOL): Adjusts the audio output volume.
- Navigation Buttons (Up, Down, Left, Right, Enter): Used for menu navigation and selection.
- Function: Switches between different input sources or modes (e.g., CD, USB, Tuner, Bluetooth).
- Play/Pause (⏸ / ⏸): Controls playback of media.
- Stop (⏹): Stops media playback.
- Skip/Search (|⏮ / ⏭|): Skips tracks or fast-forwards/rewinds.
- Mega Bass: Enhances bass sound.
- Sound Field: Adjusts sound field settings (e.g., stadium, concert hall).
- Tuning +/-: Adjusts radio frequency.
- Preset +/-: Navigates through saved radio presets.
- REC TO USB: Initiates recording to a USB device.
- DISPLAY: Changes display information on the audio system.
- SLEEP: Sets a sleep timer.
- PARTY LIGHT: Controls party lighting features.
- LIGHT MODE: Adjusts lighting modes.
- VOCAL FADER: Reduces vocal levels for karaoke.
- KEY CONTROL: Adjusts the key of music for karaoke.
- MIC ECHO: Adds echo effect to microphone input.
Note: Specific button functionalities may vary slightly depending on your Sony Home Audio System model. Refer to your audio system's manual for detailed information on its features.
3.3 Compatible Sony Home Audio System Models
This RMT-AM330U remote control is compatible with the following Sony Home Audio System models:
- MHC-M20, MHC-V21, MHC-V71, MHC-V90W, MHC-V50, MHC-V77W
- SHAKE-X10, SHAKE-X30
- HCD-M20, SS-M20, SA-V90W, SS-V90W
- HCD-SHAKE10, SS-SHAKE10, HCD-SHAKE30, SS-SHAKE30
Note: This list includes known compatible models. If your model is not listed, please contact ALLIMITY customer support for assistance.
4. Maintenance
4.1 Battery Replacement
Replace the batteries when the remote control's response becomes sluggish or stops functioning. Always replace both AAA batteries simultaneously with new ones. Do not mix old and new batteries, or different types of batteries.
4.2 Cleaning
To clean the remote control, gently wipe its surface with a soft, dry cloth. Do not use liquid cleaners, abrasive pads, or chemical solvents, as these can damage the remote's finish or internal components.
4.3 Storage
When not in use for extended periods, it is recommended to remove the batteries from the remote control to prevent potential leakage and damage. Store the remote in a cool, dry place away from direct sunlight and extreme temperatures.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Remote control does not work. |
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| Remote control works intermittently. |
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| Certain buttons do not respond. |
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6. Specifications
- Model Number: RMT-AM330U (Manufacturer's internal model: AMT-RMT-AM330U)
- Product Material: Plastic
- Connective Technology: Infrared (IR)
- Power Source: 2 x AAA Batteries (not included)
- Product Dimensions: 5 x 2 x 0.7 inches (approximately)
- Item Weight: 1.58 ounces (approximately, without batteries)
- Color: Black
- Max Number of Supported Devices: 1
- Compatible Devices: Sony Home Audio Systems (Stereo System)
7. Warranty and Support
For any questions, concerns, or support regarding your ALLIMITY RMT-AM330U remote control, please contact the seller or ALLIMITY customer service. Please provide your product model number (RMT-AM330U) and details of your inquiry for efficient assistance.
Note: Specific warranty terms and conditions may apply. Please refer to your purchase documentation for details.





