PROFESSIONAL UHF IN EAR MONITORING SYSTEM

Overview

This document provides instructions and specifications for the Professional UHF In-Ear Monitoring System. It covers system parameters, key descriptions, operation, and troubleshooting.

Precautions and Operation Instructions

Monitor System Parameters

Tips for Using the Product

• The transmitter and antenna should be kept in the relative position of accessibility of the straight line.
• Do not place the receiver close to radio wave emission sources, magnetic objects, or most digital devices (such as CD players, computers, speakers, Wi-Fi devices, etc.).
• Try to place the receiver at a height of 1.5 meters from the ground and at a distance of 1 meter away from the wall.

Key Description

Transmitter Components

• 1. Signal Antenna: For transmitting the wireless signal.
• 2. Information Screen: Displays system status, frequency, channel, etc.
• 3. Channel Setting Button: Used to select channels.
• 4. Monitor Headphone Volume: Adjusts the volume for the connected headphones.
• 5. Power (ON/OFF): Turns the device on or off.
• 6. IR Signal Position: Used for IR synchronization.
• 7. Bluetooth Indicator: Indicates Bluetooth status.
• 8. 6.5mm Audio Output (Stereo): For connecting to audio equipment.
• 9. 3.5mm Audio Input (Stereo): For audio input.
• 10. L/R Gain: Adjusts gain for left and right channels.
• 11. XLR/6.5mm L/R Audio Input (Mono): For mono audio input.
• 12. Power Interface: Connects to the power adapter.
• 13. Antenna Interface: For connecting the antenna.

Receiver Components

• Display: Shows frequency, channel, squelch level, RF signal strength, etc.
• SET Button: Confirms settings or initiates pairing.
• UP/DOWN Buttons: Navigate menus or adjust settings.
• IR Indicator: Shows IR synchronization status.
• BT Indicator: Shows Bluetooth connection status.
• RF Indicator: Indicates RF signal reception.
• DEV Indicator: Likely indicates deviation or signal quality.
• POWER Button: Turns the receiver on or off.
• Volume Knob: Adjusts the output volume.
• Antenna: Receives the wireless signal.
• DC IN (12-18V): Power input port.
• MIX OUT (XLR/6.5mm): Balanced audio output.
• AF IN (3.5mm): Audio input port.
• MIX IN (XLR/6.5mm): Audio input port.

Connectors

• XLR/6.5mm Interface Input: Supports both Balanced XLR and TRS 6.5mm connections. For unbalanced use, pins 1 and 3 of the XLR connector need to be bridged.
• 3.5mm Interface Input: For connecting audio sources.

Accessories

• In-ear headphones are typically used with the system.
• Battery holder for power.

Operation Instructions

Frequency/Channel Selection and Pairing

1. Step 1: Press the "UP [up arrow]" or "DOWN [down arrow]" buttons to select the desired channel.
2. Step 2: Press the "SET" button to confirm the channel.
3. Step 3: Align the receiver's "IR" mark with the transmitter's "IR" mark for pairing. The display may show confirmation.

Lock/Unlock Display

To lock or unlock the display settings, press and hold both the "UP [up arrow]" and "DOWN [down arrow]" buttons simultaneously.

Bluetooth Connection

To connect via Bluetooth for audio playback:

1. Turn on the monitoring system transmitter. The blue light will flash.
2. Turn on the Bluetooth switch on your mobile phone.
3. Search for new devices on your phone. The system's device name is typically "ER-102".
4. Connect to the "ER-102" device from your phone.

Troubleshooting

Common Issues and Solutions

• Problem: No Sound or Weak Voice
  • Status: Receiver LCD display off, or receiver LCD display is off. Transmitter display shows no RF signal, receiver signal indicator does not light up.
  • Solutions:
    • Ensure the receiver power is on.
    • Check battery installation (+/- orientation) and replace with fresh batteries.
    • Verify power adapter connection to the outlet and the receiver.
    • Check if the power outlet is functioning.
    • Position the receiver antenna vertically.
    • Remove obstacles between the transmitter and receiver.
    • Move the transmitter closer to the receiver.
    • Ensure the transmitter and receiver are on the same frequency.
    • Lower the maximum volume setting.
• Problem: Distortion or Excess Burst Noise
  • Status: The transmitter display shows RF signal, but there is no sound, or the receiver display shows RF signal but sound is distorted.
  • Solutions:
    • Check for and eliminate nearby sources of interference (e.g., CD players, computers, digital devices, other wireless systems).
    • Check if the battery is low and replace it.
    • If using multiple systems, increase the frequency interval between them.

Important Note

Please follow the reference suggestions to troubleshoot faults. Do not disassemble the equipment for maintenance without authorization. Unauthorized disassembly will void the warranty and after-sales service. Thank you for your understanding.