1. Introducción
Thank you for choosing the Gmatrix Big Button Universal Remote Control (Model U-43). This remote is designed for ease of use, featuring large, well-spaced buttons for improved operability and readability. It offers compatibility with a wide range of popular TV brands in the USA market, including LG, Panasonic, Philips, RCA, Samsung, Sony, Sharp, Vizio, and Zenith. The remote supports initial settings for common brands and includes a code search function for programming older or discontinued components. Its smooth design ensures a natural and comfortable grip.
Las características principales incluyen:
- Large, easy-to-read buttons.
- Compatibility with most major USA TV brands.
- Multiple setup options, including quick setup.
- Construcción de material ABS duradero.
- Operable distance of more than 8 meters.
2. Configuración
2.1. Instalación de la batería
The Gmatrix U-43 remote control requires two AAA batteries (not included). Follow these steps to install the batteries:
- Ubique el compartimiento de la batería en la parte posterior del control remoto.
- Deslice la tapa de la batería hacia abajo para abrirla.
- Insert two AAA batteries, ensuring the positive (+) and negative (-) ends match the polarity indicators inside the compartment.
- Deslice la tapa de la batería nuevamente en su lugar hasta que haga clic de forma segura.

Figura 2.1: Frente view of the Gmatrix U-43 remote control, showing its large buttons and ergonomic design.

Figura 2.2: Lado view of the Gmatrix U-43 remote control, highlighting its comfortable grip.
2.2. Programación del control remoto
The Gmatrix U-43 remote control can be programmed using several methods:
2.2.1. Default Mode (Pre-programmed)
In its default setting, the A-TV2 remote can directly control many brands including LG, Panasonic, Philips, RCA, Samsung, Sony, Sharp, Vizio, and Zenith. If your TV is one of these brands, try the remote directly. If it works, no further programming is needed.
2.2.2. Fast Search (Automatic Code Search)
This method allows the remote to automatically search for the correct code for your TV.
- Encienda su televisor manualmente.
- Mantenga pulsado el COLOCAR botón, luego presione FUERZA (ON/OFF) button for 3 seconds. The LED indicator will light up. Release both keys.
- Presione el COLOCAR button again. The LED indicator will blink.
- Apunte el control remoto a su televisor y presione el botón CH+ (Channel Up) button repeatedly (approximately every 1-2 seconds) until the TV turns off.
- Una vez que el televisor se apague, presione inmediatamente el COLOCAR button to save the code. The LED indicator will turn off.
- Test the remote's functions (Volume, Channel, etc.). If some functions do not work correctly, repeat the fast search process.
2.2.3. Manual Code Input
If you have a specific code for your TV brand, you can input it directly.
- Encienda su televisor manualmente.
- Mantenga pulsado el COLOCAR botón, luego presione FUERZA (ON/OFF) button for 3 seconds. The LED indicator will light up. Release both keys.
- Enter the 3-digit code for your TV brand using the number buttons. Refer to the provided code list (see Figure 2.4).
- After entering the code, the LED indicator will turn off.
- Test the remote's functions. If it does not work, try other codes for your brand or use the Fast Search method.

Figure 2.3: Excerpt from the instruction manual showing setup procedures.

Figure 2.4: Partial list of TV brand codes for manual programming.

Figure 2.5: Front of the Gmatrix U-43 retail packaging.

Figure 2.6: Back of the Gmatrix U-43 retail packaging, displaying a list of compatible brands.
3. Operar el control remoto
The Gmatrix U-43 remote control is designed for intuitive operation with its large, clearly labeled buttons.
| Botón | Función |
|---|---|
| FUERZA (Botón rojo) | Enciende o apaga el televisor. |
| VOL + / - | Increases (+) or Decreases (-) the volume. |
| CH ^ / V | Changes the channel Up (^) or Down (V). |
| ENTRADA AV | Switches between video input sources (e.g., HDMI, AV). |
| CANAL ANTERIOR | Vuelve al anterior viewcanal ed. |
| MUTE | Silencia o activa el sonido del televisor. |
| 0-9 (Number Buttons) | Ingresa directamente los números de canal. |
| +100 | Used for entering three-digit channel numbers (e.g., for channel 102, press 1, 0, +100, 2). |
| COLOCAR (Botón rojo) | Used for programming the remote control. |
Ensure the remote control is pointed directly at the TV's infrared receiver for optimal performance. The LED indicator on the remote will flash with each button press, confirming signal transmission.
4. Mantenimiento
4.1. Limpieza
Para limpiar el control remoto, utilice un paño suave y seco. Para la suciedad difícil, frote ligeramente.ampLimpie el paño con agua o un limpiador suave no abrasivo. No utilice productos químicos agresivos ni materiales abrasivos, ya que podrían dañar la superficie o los botones del control remoto.
4.2. Reemplazo de la batería
Replace the batteries when the remote's response becomes sluggish or the LED indicator does not light up consistently. Always replace both AAA batteries at the same time with new ones. Do not mix old and new batteries, or different types of batteries, as this can lead to leakage or malfunction.
If the remote will not be used for an extended period, remove the batteries to prevent potential leakage and damage.
5. Solución de problemas
If you encounter issues with your Gmatrix U-43 remote control, refer to the following common problems and solutions:
- Remote is not responding or LED does not light up:
- Compruebe si las baterías están instaladas correctamente con la polaridad correcta.
- Reemplace ambas baterías AAA por otras nuevas.
- Asegúrese de que no haya obstrucciones entre el control remoto y el receptor de infrarrojos del televisor.
- Remote functions are incorrect after programming:
- Re-attempt the programming process (Fast Search or Manual Code Input).
- If using Manual Code Input, try a different code from the list for your TV brand.
- Asegúrese de estar presionando el COLOCAR button immediately after the TV turns off during Fast Search.
- Remote is not controlling all TV functions:
- Some advanced TV functions may not be supported by universal remotes.
- Ensure the remote is correctly programmed for your specific TV model.
- Buttons feel unresponsive or sticky:
- Limpie el control remoto como se describe en la sección Mantenimiento.
- Ensure no liquids have spilled into the remote.
If the issue persists after trying these steps, please refer to the manufacturer's webSitio para obtener más ayuda o ponerse en contacto con atención al cliente.
6. Especificaciones
| Característica | Detalle |
|---|---|
| Número de modelo | U-43 |
| Marca | Matriz G |
| Material | abdominales |
| Dimensiones del producto | 5 x 2 x 7 pulgadas |
| Peso del artículo | 1.6 onzas |
| Pilas necesarias | 2 pilas AAA (no incluidas) |
| Distancia operable | Más de 8 metros |
| Requisitos de energía | 3 V CC |
| Dispositivos compatibles | Most USA market brands of LCD, PDP, and CRT TVs (e.g., LG, Panasonic, Philips, RCA, Samsung, Sony, Sharp, Vizio, Zenith) |
7. Garantía y soporte
7.1. Información de garantía
Specific warranty details for the Gmatrix U-43 Universal Remote Control are not provided in this manual. Please refer to the product packaging or the official Gmatrix websitio para obtener la información más actualizada sobre la garantía.
7.2. Atención al cliente
For technical assistance, troubleshooting beyond this manual, or inquiries regarding your product, please visit the Gmatrix official website or contact their customer support. Contact information may also be available on the product packaging.
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