RF Modulator RCA Coaxial Adapter User Manual

Introduction

The MOUDOAUER TV-TX200 RF Modulator RCA Coaxial Adapter is designed to convert high-definition input signals to analog TV signals, allowing modern devices to connect with older television sets, including color and black and white TVs. It functions as both an analog TV signal transmitter and a wireless RF signal converter, providing flexibility in connecting various input sources such as set-top boxes, computers, and mobile phones.

Key Features

• Broad Compatibility: Supports imported N TV systems and is compatible with HD to AV output, enabling older color and black and white TVs to receive and broadcast HD signals.
• Analog TV Signal Transmission: Functions as an analog TV signal transmitter and wireless RF signal converter for old-fashioned TVs.
• HD to AV Conversion: Converts high-definition input to AV signals for connection to AV-enabled displays like LCD TVs, with simultaneous signal transmission.
• Adjustable Frequency: Offers adjustable transmitting frequency for flexible device setup.
• Sound Conversion: Supports accompanying sound conversion within the 4.5-6.5 MHz range for clear audio.
• Multiple Input Methods: Accepts inputs from set-top boxes, network set-top boxes, computers, and mobile phones.
• OLED Display: Features an OLED screen for intuitive settings and adjustments.
• Long Transmission Distance: Provides a transmission distance of up to 20 meters (65.6 feet), even through walls.
• Efficient Power Supply: Uses a 5V DC power supply with aluminum alloy heat dissipation for stable performance.

Package Contents

• 1 x RF Modulator RCA Coaxial Adapter (Transmitter)
• 1 x Transmitting Antenna
• 1 x USB Power Cable

Specifications

Setup

Follow these steps to set up your RF Modulator:

1. Connect the Antenna: Screw the transmitting antenna into the designated port on the RF Modulator.
2. Power Connection: Connect the provided USB power cable to the DC5V USB port on the modulator and plug the other end into a 5V DC power source (e.g., a USB wall adapter, not included).
3. Input Source Connection:
   • For HD input: Connect your HD source (e.g., DVD player, PC, network set-top box, mobile phone via adapter) to the HDMI input port on the modulator.
   • For AV input: Connect your AV source to the AV-IN RCA ports (yellow for video, red/white for audio) on the modulator.
4. Output Connection (Optional for direct AV display): If you wish to connect to an AV-enabled display (like an LCD TV) directly, use RCA cables to connect the AV-OUT ports on the modulator to your display's AV input. This is in addition to the RF transmission.
5. Power On: Slide the power switch (K3) to the "ON" position. The OLED display will illuminate.

Image: The RF Modulator unit, showing the HDMI, AV-IN, AV-OUT ports, USB power input, and antenna connection point. The included antenna and USB power cable are also visible.

Image: A diagram illustrating how different input sources such as DVD players, PCs, video recorders, mobile phones, and network set-top boxes can connect to the RF Modulator via HDMI or AV-IN. It also shows the wireless transmission to a TV and FM radio.

Operating Instructions

Once the device is powered on and inputs are connected, you can configure its operation using the OLED display and control buttons.

Signal Selection:

Use the K1 and K2 buttons to navigate and select the desired signal mode. The OLED display will show the current selection.

• HDMI-RF: Select this mode for transmitting HDMI input as an RF signal.
• HDMI-AVOUT: Select this mode for outputting HDMI input as an AV signal through the AV-OUT ports.
• AV-RF: Select this mode for transmitting AV input as an RF signal.

Frequency Adjustment:

The transmitting frequency is adjustable. Use the MENU and ADD/COT buttons to adjust the VHF frequency (default 85.25MHz) and the FM frequency (default 91.75MHz). Refer to the display for current frequency settings.

For FM signal transmission, the radio's reception frequency is calculated as: VHF Frequency + Accompanying Sound Frequency. For example:

• 85.25MHz (VHF) + 6.5MHz (Sound) = 91.75MHz (FM Reception)
• 85.25MHz (VHF) + 6.0MHz (Sound) = 91.25MHz (FM Reception)
• 85.25MHz (VHF) + 5.5MHz (Sound) = 90.75MHz (FM Reception)
• 85.25MHz (VHF) + 4.5MHz (Sound) = 89.75MHz (FM Reception)

Image: A detailed view of the RF Modulator's control panel, highlighting the OLED display showing VHF and FM frequencies, and labels for HDMI, AV-IN, AV-OUT, and signal selection instructions.

Image: An illustration demonstrating the 20-meter wireless transmission capability of the RF Modulator to both a TV and an FM radio, indicating signal strength and range.

Maintenance

To ensure the longevity and optimal performance of your RF Modulator, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the exterior of the device. Do not use liquid cleaners or abrasive materials.
• Storage: When not in use for extended periods, store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Ventilation: Ensure the device has adequate ventilation to prevent overheating. Do not block the ventilation holes. The aluminum alloy casing aids in heat dissipation.
• Handling: Handle the device with care. Avoid dropping it or subjecting it to strong impacts.

Troubleshooting

If you encounter issues with your RF Modulator, refer to the following common problems and solutions:

• No Power/Display Off:
  • Ensure the USB power cable is securely connected to both the modulator and a working 5V DC power source.
  • Check if the power switch (K3) is in the "ON" position.
• No Signal on TV:
  • Verify that the input source (HDMI or AV) is correctly connected to the modulator and is active.
  • Confirm that the correct signal selection mode (e.g., HDMI-RF, AV-RF) is chosen on the modulator's OLED display.
  • Ensure your TV is tuned to the correct analog channel/frequency that the modulator is transmitting on. You may need to perform a channel scan on your TV.
  • Check the antenna connection on the modulator and ensure it is properly extended.
  • Reduce the distance between the modulator and the receiving TV, or remove any obstructions.
• Poor Picture/Sound Quality:
  • Adjust the transmitting frequency on the modulator and fine-tune the TV's reception.
  • Ensure all cables (HDMI, AV, power) are securely connected and not damaged.
  • Check for sources of interference (e.g., other electronic devices) near the modulator or TV.
  • For sound issues, verify the sound conversion settings (4.5-6.5 MHz) are appropriate for your TV system.

Warranty and Support

For warranty information and technical support, please refer to the documentation included with your purchase or contact MOUDOAUER customer service through the retailer where the product was purchased. Keep your proof of purchase for warranty claims.

Image: The product packaging displaying regulatory compliance marks (CE) and multi-language warnings, primarily related to battery usage (though this product does not use batteries, this is part of the general packaging information).