1. Introduction
This manual provides detailed instructions for the proper use and maintenance of your LG AKB73575401 Home Theater Sound Bar Remote Control. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.
2. Product Overview
The LG AKB73575401 is an original equipment manufacturer (OEM) remote control designed for specific LG Home Theater Sound Bar Speaker systems. It provides comprehensive control over your sound bar's functions, including power, volume, input selection, sound modes, and media playback.

Image 1: Front view of the LG AKB73575401 Home Theater Sound Bar Remote Control. The remote is black with various gray and black buttons, including a prominent red power button at the top.
3. Battery Installation
The remote control requires two AAA batteries (not included).
- Locate the battery compartment cover on the back of the remote control.
- Press down on the tab and slide the cover off.
- Insert two AAA batteries, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Slide the battery compartment cover back into place until it clicks securely.
Note: Replace both batteries at the same time. Do not mix old and new batteries or different types of batteries. Remove batteries if the remote control will not be used for an extended period.
4. Setup
This remote control is an original LG part and is typically pre-programmed to work with compatible LG Home Theater Sound Bar Speaker systems. No complex setup or pairing procedure is usually required. Simply install the batteries and point the remote towards your sound bar.
- Ensure your sound bar is powered on and within the remote's operating range (up to 10 meters).
- Point the remote control directly at the infrared (IR) receiver on your sound bar.
5. Operating Instructions
Familiarize yourself with the buttons on your remote control and their functions:
| Button | Function |
|---|---|
| Power (red circle) | Turns the sound bar system ON or OFF. |
| INPUT | Cycles through available input sources (e.g., Optical, Bluetooth, HDMI). |
| OPTICAL | Directly selects the Optical input source. |
| FOLDER (up/down arrows) | Navigates through folders on connected media (e.g., USB). |
| VOL + / - | Adjusts the main volume level of the sound bar. |
| MUTE | Mutes or unmutes the sound bar's audio output. |
| AUTO POWER | Activates or deactivates the auto power on/off feature. |
| AV SYNC | Adjusts audio and video synchronization to prevent lip-sync issues. |
| INFO | Displays information about the current input, track, or settings. |
| REPEAT | Controls playback repeat modes (e.g., repeat one, repeat all). |
| Navigation Pad (Up, Down, Left, Right, Center) | Used for menu navigation and selection. |
| Playback Controls (Rewind, Stop, Play/Pause, Fast Forward) | Standard controls for media playback. |
| SOUND EFFECT | Cycles through various pre-set sound effects or equalization modes. |
| 3D SOUND | Activates or deactivates the 3D sound processing mode. |
| WOOFER LEVEL | Adjusts the output level of the connected subwoofer. |
| Number Buttons (0-9) | Used for direct track selection or other numerical inputs. |
| DOLBY DRC | Activates or deactivates Dolby Dynamic Range Control for optimized listening at low volumes. |
| SLEEP | Sets a sleep timer for the sound bar. |
| TV Power (red button, bottom section) | Turns the connected TV ON or OFF. |
| TV MUTE | Mutes or unmutes the TV's audio output. |
| TV VOL + / - | Adjusts the volume level of the connected TV. |
| TV PR/CH ^ / v | Changes the channel on the connected TV. |
| TV AV/INPUT | Cycles through the input sources of the connected TV. |
6. Maintenance
Cleaning the Remote Control
- Wipe the remote control with a soft, dry cloth.
- Do not use abrasive cleaners, waxes, or solvents.
Battery Replacement
When the remote control's range decreases or it becomes unresponsive, it is time to replace the batteries. Follow the battery installation steps outlined in Section 3.
7. Troubleshooting
| Problem | Possible Cause / Solution |
|---|---|
| Remote control does not work. |
|
| Short operating range. |
|
| Specific buttons do not respond. |
|
8. Specifications
- Model Number: AKB73575401
- Brand: LG
- Compatible Devices: LG Home Theater Sound Bar Speaker Systems
- Connectivity Technology: Infrared (IR)
- Maximum Range: Approximately 10 meters (33 feet)
- Battery Type: 2 x AAA (Alkaline recommended)
- Controller Type: Remote Control
- Special Feature: Ergonomic design
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your LG Home Theater Sound Bar Speaker system or visit the official LG website. As an OEM part, the remote control's warranty is typically covered under the main product's warranty.
You can also visit the LG Store on Amazon for additional product information and support resources.