1. Introduction
This manual provides instructions for the ECONTROLLY AKB73655731 replacement remote control. This remote is compatible with various LG CD Home Audio Mini Hi-FI Systems, including models CMS9940F/W, CM9940FB, and CM9940. Please read this manual thoroughly before use to ensure proper operation.
2. Setup
2.1 Battery Installation
The remote control requires two (2) AAA batteries for operation. No programming or pairing is necessary; simply install the batteries to begin use.
- Locate the battery compartment on the back of the remote control.
- Slide the battery compartment cover downwards and remove it.
- Insert two (2) new AAA alkaline 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.

Figure 1: Battery compartment with cover removed, illustrating where to insert AAA batteries.
For optimal performance, use new alkaline batteries. If the remote control does not respond after battery installation, verify battery orientation and ensure the batteries are fresh.
3. Operating Instructions
This remote control is designed to function immediately with compatible LG CD Home Audio Mini Hi-FI Systems upon battery installation. Point the remote control directly at the system's infrared receiver.

Figure 2: Front view of the AKB73655731 remote control.
3.1 Button Functions
- Power (⑁): Turns the system on or off.
- Function: Cycles through input sources (e.g., CD, USB, Tuner).
- Preset Folder: Navigates through preset folders or directories.
- VOL (+/-): Adjusts the volume level.
- MUTE: Mutes or unmutes the audio output.
- TUNER MEMORY: Stores radio stations or recalls stored stations.
- USB REC: Initiates recording to a USB device.
- SLEEP: Sets the sleep timer.
- REPEAT (MENU): Repeats playback or accesses menu options.
- Navigation Buttons (◀, ▶, ▲, ▼): Navigates through menus or tracks.
- ENTER: Confirms selections.
- Play/Pause (▶/‖): Starts or pauses playback.
- Sound Effect: Cycles through various sound modes or equalizers.
- AUTO DJ: Activates or deactivates the Auto DJ feature.
- DELETE: Deletes selected items.
- Number Buttons (0-9): Direct track selection or input.
- INFO: Displays information about the current track or system status.
- REGION EQ: Adjusts regional equalizer settings.
- CLOCK: Displays or sets the system clock.
- TIMER: Sets or adjusts timer functions.
- SET: Accesses setup or settings menus.
- SMART DJ: Activates or deactivates the Smart DJ feature.
- JUKE BOX: Accesses the Juke Box function.
- SMART DJ LEVEL (+/-): Adjusts the level for the Smart DJ feature.
4. Maintenance
4.1 Battery Replacement
Replace batteries when the remote control's response becomes inconsistent or stops working. Always replace both batteries simultaneously with new AAA alkaline batteries. Do not mix old and new batteries, or different types of batteries.
4.2 Cleaning
To clean the remote control, use a soft, dry cloth. Do not use liquid cleaners, abrasive pads, or chemical solvents, as these can damage the surface or internal components.
4.3 Storage
If the remote control will not be used for an extended period, remove the batteries to prevent leakage and potential damage to the device.
5. Troubleshooting
- Remote control is not responding:
- Ensure the batteries are correctly installed with the proper polarity.
- Replace old batteries with new AAA alkaline batteries.
- Verify there are no obstructions between the remote control and the LG system's infrared receiver.
- Ensure the remote control is pointed directly at the system.
- Remote control functions are incorrect:
- Confirm that your LG CD Home Audio Mini Hi-FI System model (CMS9940F/W, CM9940FB, CM9940) is listed as compatible.
- Some functions may vary slightly depending on the specific system model.
6. Specifications
| Model Number | AKB73655731 (RCEC-5731) |
| Compatible Devices | LG CD Home Audio Mini Hi-FI System (CMS9940F/W, CM9940FB, CM9940) |
| Power Source | 2 x AAA Batteries (not included) |
| Connectivity Technology | Infrared (IR) |
| Product Dimensions | 7 x 2 x 0.65 inches |
| Item Weight | 1 ounce |
| Special Feature | Ergonomic design |
7. Support Information
For further assistance or inquiries regarding this ECONTROLLY remote control, please refer to the retailer or manufacturer's support channels. Specific warranty or direct support contact information is not provided within this manual.
