1. Introdución
The Ematic AT103B Digital Converter Box is designed to enable televisions without a built-in digital tuner to receive over-the-air digital broadcasts. This device enhances your viewing experience by providing features such as an electronic program guide, parental controls, and the ability to record and play back multimedia content via a USB connection. A full-function remote control is included for convenient operation.

Figure 1.1: Ematic AT103C Digital Converter Box User Manual Cover. Note: An antenna is required and sold separately.
2. Equipos Overview
2.1 Panel frontal

Figure 2.1: Front and Back Panel of the Ematic Digital Converter Box.
- 1. Botón de acendido: Press to turn the receiver ON or OFF.
- 2. Channel UP/DOWN: Buttons to change the channel up or down.
- 3. Indicador LED: Mostra o número da canle actual.
- 4. Infrared Receiver: Location for receiving signals from the remote control.
- 5. Porto USB: 5V/500mA (maximum supported) for multimedia playback and recording.
2.2 Panel posterior
- 1. RF IN: Connect your antenna to this port.
- 2. RF OUT: CH 3/4 NTSC RF Output. Connect to your television's antenna input.
- 3. Saída HDMI: Connect to an HDMI input on your TV or monitor for high-definition video and audio.
- 4. L/R Audio (Red/White): Connect to the Left and Right audio inputs on your TV or audio receiver if using composite video.
- 5. Video (Yellow): Connect to the composite video input on your TV or monitor.
3. Configuración e conexións
Follow these steps to connect your Ematic Digital Converter Box to your television.
3.1 Connecting with Composite Cables (White, Red, Yellow)
If your TV or monitor uses composite cables, connect the White (Left Audio), Red (Right Audio), and Yellow (Video) cables from the converter box to the corresponding VIDEO/AUDIO IN ports on your TV.

Figure 3.1: Connection diagrams for Composite and RF cables.
3.2 Connecting with RF Cable
Connect your antenna to the RF IN port on the converter box. Then, connect an RF cable from the RF OUT port on the converter box to the ANT/CABLE IN port on your TV.
3.3 Connecting with HDMI Cable
For the best picture quality, connect an HDMI cable from the HDMI OUT port on the converter box to an available HDMI IN port on your TV.
3.4 Acendido
After all connections are made, plug the power adapter into the converter box and then into a wall outlet. Press the Power button on the front panel or the remote control to turn on the device.

Figure 3.2: Powering on the Converter Box.
4. Instrucións de funcionamento
4.1 Channel Scanning and Management
- Sintonización automática: The converter box features an auto-tuning function to scan and store available digital channels. Refer to the on-screen menu for initiating auto-scan.
- Favorite Channel List: Create and manage a list of your preferred channels for quick access.
4.2 Gravación e reprodución
The device supports recording and playback of content using a USB drive (not included).
- Gravación en tempo real: Record live TV directly to your connected USB drive.
- Appointed Recording: Schedule recordings of your favorite shows for later viewing.
- Reprodución multimedia: Reproducir medios files directly from your USB drive. Supported formats include MP3, AAC, AVI, MPG, DAT, VOB, MKV, MJPEG, JPEG, BMP, and PNG.
4.3 Controis parentais
Manage content access for children using the parental control features:
- Definir contrasinal: Create a password to secure settings and restricted content.
- Block Channels: Prevent access to inappropriate channels.
- Restrict Programs: Límite viewing based on Parental Guidance ratings.
4.4 Electronic Program Guide (EPG) and Closed Captioning
- EPG: Access program information and schedules through the electronic program guide.
- Subtítulos pechados: Enable closed captioning for on-screen text display of dialogue and sounds.
4.5 Time-Shift Functionality
Utilize the time-shift features to control live television:
- Pausa TV en directo: Temporarily pause live broadcasts.
- Avance/Rebobinado rápido: Skip through commercials or review missed moments.
5 Solución de problemas
If you encounter issues with your Ematic Digital Converter Box, please refer to the following common troubleshooting tips:
- Sen enerxía: Ensure the power adapter is securely connected to the converter box and a working electrical outlet. Try a different outlet.
- No Signal/Picture: Verify that the antenna is properly connected to the RF IN port. Ensure your TV input is set to the correct source (HDMI, AV, or TV/Antenna). Perform an auto-scan for channels. Check antenna positioning.
- O control remoto non funciona: Check the batteries in the remote control and replace them if necessary. Ensure there are no obstructions between the remote and the converter box's infrared receiver.
- Mala calidade de imaxe: Ensure all cables are securely connected. If using composite cables, consider switching to HDMI for better quality if your TV supports it. Adjust antenna position for optimal signal reception.
- Problemas de gravación: Ensure the USB drive is properly inserted and has sufficient free space. Check that the USB drive is formatted correctly (FAT32 is commonly supported).
For further assistance, consult the full user manual provided with your product or visit the Ematic support websitio.
6. Especificacións
| Característica | Especificación |
|---|---|
| Modelo | AT103B |
| Dimensións do produto | 16.6 x 16 x 14.4 polgadas |
| Peso | 1.3 libras |
| Fabricante | EMATIC |
| Tipo de interface | USB |
| Número de canles | 1 (Digital Tuner) |
| UPC | 042822196110 |
7. Garantía e soporte
Warranty information for the Ematic AT103B Digital Converter Box is typically provided with the product packaging or can be found on the official Ematic websitio. Garde o comprobante de compra para reclamacións de garantía.
For technical support, product registration, or to access frequently asked questions, please visit the official Ematic support portal or contact their customer service department. Contact details are usually available on the manufacturer's websitio ou na documentación do produto.





