Williams AV DLT 400
Williams AV DLT 400 Digi-Wave 400 Digital Wireless Listening System Transceiver User Manual
Model: DLT 400
pengenalan
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.
Produk Selesaiview

Rajah 1: Depan 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.
Komponen Utama:
- Paparan OLED: Provides visual feedback on device status, battery level, mode, and settings.
- Butang Kuasa: Digunakan untuk menghidupkan dan mematikan peranti.
- Butang Mikrofon: Activates/deactivates the internal microphone or connected external microphone.
- Butang Navigasi (Atas/Bawah/Kiri/Kanan): For menu navigation and adjusting settings.
- Butang Menu: Mengakses menu tetapan peranti.
- 3.5 mm TRRS Headphone Jack: Untuk menyambungkan fon kepala atau fon telinga.
- 3.5 mm Microphone Jack: For connecting an external electret microphone.
- Port USB-C: Used for charging the internal battery and line input/output.
- Mikrofon Dalaman: Built-in microphone for convenient use.
Persediaan
1. Mengecas Peranti:
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.
- Connect the USB-C cable to the USB-C port on the DLT 400.
- Connect the other end of the cable to the charging pack or a compatible USB power adapter.
- The OLED display will indicate charging status. A full charge takes approximately 5 hours.
- A fully charged battery provides up to 16 hours of talk time.
2. Menghidupkan/Mematikan:
- Untuk menghidupkan: Tekan dan tahan butang kuasa button until the OLED display illuminates.
- Untuk mematikan kuasa: Tekan dan tahan butang kuasa butang sehingga paparan dimatikan.
3. Menyambung Aksesori:
- Fon kepala: Plug your 3.5 mm TRRS headphones into the headphone jack.
- Mikrofon Luaran: Plug an electret microphone into the 3.5 mm microphone jack. The device supports adjustable gain for external microphones.
Arahan Operasi
The DLT 400 supports various operating modes to suit different communication needs.
1. Pemilihan Mod:
Gunakan Menu button and navigation arrows to select the desired operating mode:
- Guided Tours:
- Sehala: For a single guide transmitting to an audience.
- dua hala: Allows audience participation or multiple tour guides.
- Language Interpretation: One or more interpreted languages can be transmitted to the audience (one-way).
- Interkom: Up to six individuals can speak simultaneously, with additional listeners.
- Hearing Assistance: Boosts audio for improved comprehension, ideal for individuals with hearing impairments.
2. Penggunaan Mikrofon:
- Tekan ke Mikrofon button to toggle the microphone (internal or external) on or off.
- Adjust microphone gain through the menu settings if using an external microphone.
3. Pelarasan Kelantangan:
Gunakan Up dan Bawah 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.
Penyelenggaraan
1. Pembersihan:
- Wipe the device with a soft, dry, lint-free cloth.
- Jangan gunakan pembersih yang melelas, pelarut atau bahan kimia yang kuat.
- Elakkan mendapatkan kelembapan ke dalam bukaan.
2. Penjagaan Bateri:
- Untuk jangka hayat bateri yang optimum, elakkan daripada kerap mencas sepenuhnya bateri.
- Simpan peranti di tempat yang sejuk dan kering apabila tidak digunakan untuk tempoh yang lama.
- Recharge the battery periodically if stored for a long time to prevent deep discharge.
3. Storan:
Store the DLT 400 in its original packaging or a protective case to prevent damage from dust, moisture, and physical impact.
Menyelesaikan masalah
If you encounter issues with your DLT 400, refer to the following common troubleshooting steps:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Peranti tidak dihidupkan. | Bateri lemah atau habis. | Cas peranti selama sekurang-kurangnya 5 jam. |
| Tiada audio daripada fon kepala. | Headphones not properly connected; Volume too low; Incorrect mode selected; No active signal. | Ensure headphones are fully plugged in. Increase volume. Verify the correct operating mode is selected. Check if the transmitting device is active. |
| Mikrofon tidak berfungsi. | Microphone muted; External microphone not connected properly; Gain too low. | Press the Microphone button to unmute. Ensure external microphone is fully plugged in. Adjust microphone gain in settings. |
| Kualiti audio yang lemah atau statik. | Di luar julat; Gangguan; Bateri lemah. | Move closer to the transmitting device. Check for sources of 2.4 GHz interference. Recharge the battery. |
| Device enters sleep mode unexpectedly. | No RF signal detected for 5 minutes. | Ensure the transmitting device is active and within range. |
If the problem persists after trying these steps, please contact Williams AV customer support for further assistance.
Spesifikasi
| Ciri | Perincian |
|---|---|
| Nombor Model | DLT 400 |
| Jenis Bateri | Lithium Polymer, 1800 mAH |
| Hayat Bateri | Masa bercakap sehingga 16 jam |
| Masa Mengecas | lebih kurang 5 jam |
| Kekerapan Operasi | 2.4 GHz (jalur ISM); 2402 – 2476 MHz FHSS |
| Respons Frekuensi Audio | Intercom Mode: 100 – 7,200Hz; Other Modes: 100 – 11,500Hz |
| SNR | 73 dB |
| THD | 0.1 % (Default Volume, 1kHz) |
| Input Mikrofon | Internal microphone and 3.5 mm phone jack (electret bias, adjustable gain) |
| Input Talian | USB-C, Adjustable level |
| Output Fon Kepala | 3.5 mm TRRS headphone jack; 25 mW, R 32 ohms |
| Audio Output (Line) | USB-C, Adjustable level |
| Julat | Sehingga 900 kaki (274 m) |
| Keluaran RF | 19 dBm Biasa |
| Keselamatan | 87 bit encryption, 87+128 bit Encryption, Encryption PIN, Lock for settings |
| Penunjuk | OLED |
| Penyambung Pengecasan | USB-C |
| Suhu Operasi | 14º to 113ºF (-10º to 45ºC) |
| Dimensi (W x H x D) | 4.22" x 2.60" x 0.50" (10.72 cm x 6.60 cm x 1.27 cm) |
| Berat badan | 3.3 oz (93.5 g) |
| warna | Hitam/Perak |
Waranti dan Sokongan
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 webtapak. Terma dan syarat waranti mungkin berbeza mengikut wilayah dan produk.
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 webtapak atau dalam pembungkusan produk.
For the most up-to-date information and support resources, please visit: www.williamsav.com
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