Williams AV DLT 400 Digi-Wave 400 Digital Wireless Listening System Transceiver User Manual

Introduction

The Williams AV DLT 400 Digi-Wave 400 is a versatile digital wireless listening system transceiver designed for a wide range of applications. This device facilitates clear and reliable communication for guided tours, language interpretation, intercom systems, and hearing assistance. Its robust design and advanced features ensure high-quality audio transmission and reception over distances up to 900 feet (274 meters).

This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your DLT 400 transceiver.

Product Overview

Figure 1: Front view of the Williams AV DLT 400 Transceiver. The device features an OLED display at the top, control buttons including power, microphone, menu, and navigation arrows, and the "WILLIAMSOUND" logo at the bottom.

The DLT 400 transceiver is a compact, handheld unit equipped with an OLED display for clear status indication and menu navigation. It features intuitive controls for managing audio, modes, and settings.

Key Components:

• OLED Display: Provides visual feedback on device status, battery level, mode, and settings.
• Power Button: Used to turn the device on and off.
• Microphone Button: Activates/deactivates the internal microphone or connected external microphone.
• Navigation Buttons (Up/Down/Left/Right): For menu navigation and adjusting settings.
• Menu Button: Accesses the device's settings menu.
• 3.5 mm TRRS Headphone Jack: For connecting headphones or earphones.
• 3.5 mm Microphone Jack: For connecting an external electret microphone.
• USB-C Port: Used for charging the internal battery and line input/output.
• Internal Microphone: Built-in microphone for convenient use.

Setup

1. Charging the Device:

The DLT 400 features an internal rechargeable Lithium Polymer battery. Before first use, or when the battery is low, charge the device using the included charging pack (DW ACC PAC4) or a standard USB-C charger.

1. Connect the USB-C cable to the USB-C port on the DLT 400.
2. Connect the other end of the cable to the charging pack or a compatible USB power adapter.
3. The OLED display will indicate charging status. A full charge takes approximately 5 hours.
4. A fully charged battery provides up to 16 hours of talk time.

2. Powering On/Off:

• To power on: Press and hold the Power button until the OLED display illuminates.
• To power off: Press and hold the Power button until the display turns off.

3. Connecting Accessories:

• Headphones: Plug your 3.5 mm TRRS headphones into the headphone jack.
• External Microphone: Plug an electret microphone into the 3.5 mm microphone jack. The device supports adjustable gain for external microphones.

Operating Instructions

The DLT 400 supports various operating modes to suit different communication needs.

1. Mode Selection:

Use the Menu button and navigation arrows to select the desired operating mode:

• Guided Tours:
  • One-way: For a single guide transmitting to an audience.
  • Two-way: Allows audience participation or multiple tour guides.
• Language Interpretation: One or more interpreted languages can be transmitted to the audience (one-way).
• Intercom: Up to six individuals can speak simultaneously, with additional listeners.
• Hearing Assistance: Boosts audio for improved comprehension, ideal for individuals with hearing impairments.

2. Microphone Usage:

• Press the Microphone button to toggle the microphone (internal or external) on or off.
• Adjust microphone gain through the menu settings if using an external microphone.

3. Volume Adjustment:

Use the Up and Down navigation buttons to adjust the listening volume through the connected headphones.

4. Power Save Mode:

The device features an Auto Sleep Mode that activates after 5 minutes of no RF signal from compatible devices, conserving battery life.

Maintenance

1. Cleaning:

• Wipe the device with a soft, dry, lint-free cloth.
• Do not use abrasive cleaners, solvents, or strong chemicals.
• Avoid getting moisture into openings.

2. Battery Care:

• For optimal battery life, avoid fully discharging the battery frequently.
• Store the device in a cool, dry place when not in use for extended periods.
• Recharge the battery periodically if stored for a long time to prevent deep discharge.

3. Storage:

Store the DLT 400 in its original packaging or a protective case to prevent damage from dust, moisture, and physical impact.

Troubleshooting

If you encounter issues with your DLT 400, refer to the following common troubleshooting steps:

If the problem persists after trying these steps, please contact Williams AV customer support for further assistance.

Specifications

Warranty and Support

For detailed warranty information regarding your Williams AV DLT 400 transceiver, please refer to the warranty card included with your product or visit the official Williams AV website. Warranty terms and conditions may vary by region and product.

If you require technical assistance, have questions about product functionality, or need to arrange for service, please contact Williams AV customer support. Contact information can typically be found on the manufacturer's website or in the product packaging.

For the most up-to-date information and support resources, please visit: www.williamsav.com