Lotoo PAW S2 Portable USB DAC-AMP Manual Pengguna

1. Pengenalan

The Lotoo PAW S2 is a portable USB Digital-to-Analog Converter (DAC) and Amplifier designed to enhance the audio quality from your digital devices. It provides a high-resolution audio output for headphones and earphones, featuring advanced audio processing and a robust output stage for a clear and detailed listening experience.

Image 1.1: The Lotoo PAW S2 Portable USB DAC-AMP.

2. Kandungan Pakej

Sila sahkan bahawa semua item yang disenaraikan di bawah disertakan dalam pakej anda:

• Lotoo PAW S2 Unit
• Kabel USB-C ke USB-C
• Penyesuai USB-A ke USB-C
• Manual Pengguna (dokumen ini)
• Kad Waranti

Image 2.1: Contents of the Lotoo PAW S2 retail package. Includes the PAW S2 unit, various cables, and documentation.

3. Ciri-ciri Produk

3.1. AKM DAC Chip Implementation

The PAW S2 integrates the AKM4377 DAC chip, optimized for high-resolution audio conversion. This chip contributes to a clean output signal with low distortion and high Signal-to-Noise Ratio (SNR), allowing for detailed audio reproduction.

Imej 3.1: Jarak dekat view of the AKM4377 DAC chip integrated into the PAW S2.

3.2. Advanced Architecture

The PAW S2 features a Blackfin DSP and an advanced 2x8 layer HDI PCB design. The analog board utilizes low-noise, low-temperature drift metal film resistors for precise audio processing.

Imej 3.2: Meletup view illustrating the internal components and layered PCB design of the PAW S2.

3.3. Highly-Accurate Phase-Locked Loop (PLL)

The device incorporates the AK8142 programmable clock generator IC with an integrated fractional N PLL. This component helps reduce USB and SRC interface jitter, contributing to stable and high-fidelity audio performance.

Imej 3.3: Jarak dekat view of the AK8142 chip, responsible for the device's accurate phase-locked loop.

3.4. Powerful Headphone AmpKeluaran yang lebih hidup

The PAW S2 features a standalone headphone amplifier. It delivers up to 150mW at 32Ω through the 4.4mm balanced headphone output and up to 125mW at 32Ω through the 3.5mm single-ended headphone output.

3.5. Media Control Keys

The device includes media control keys for convenient operation. These keys allow for volume adjustment, menu navigation, and play/pause functionality during music playback.

Image 3.4: Detail of the 'Fn' (Function) button, part of the media control keys on the PAW S2.

4. Reka Letak Peranti

The Lotoo PAW S2 features a compact design with essential ports and controls for ease of use.

• Bahagian Atas: USB-C input port for connection to source devices.
• Bahagian Bawah: 3.5mm single-ended headphone output and 4.4mm balanced headphone output.
• Panel sisi: Function (Fn) button, volume up/down buttons, and play/pause button.

Imej 4.1: Bawah view of the PAW S2, showing the 3.5mm and 4.4mm audio output ports.

Imej 4.2: Sisi view of the PAW S2, highlighting the USB-C input port and control buttons.

5. Persediaan dan Sambungan

Follow these steps to connect your Lotoo PAW S2 to a source device and headphones:

1. Sambungkan ke Peranti Sumber: Use the provided USB-C to USB-C cable to connect the PAW S2 to your smartphone, tablet, or computer. If your source device uses a USB-A port, use the included USB-A to USB-C adapter.
2. Sambungkan Fon Kepala: Plug your headphones or earphones into either the 3.5mm single-ended or 4.4mm balanced output port on the bottom of the PAW S2. Ensure the connector is fully inserted.
3. Hidupkan kuasa: The PAW S2 will typically power on automatically once connected to a powered USB port.

Image 5.1: The PAW S2 connected to earphones, demonstrating a typical usage scenario.

6. Arahan Operasi

The PAW S2 offers intuitive controls for audio playback and settings.

• Kawalan Kelantangan: Use the dedicated volume up and down buttons on the side of the device to adjust the output volume. Note that on some devices (e.g., iPhone), volume must be adjusted directly on the PAW S2, not the host device. On PCs, you can adjust volume via software, but the maximum volume is limited by the PAW S2's setting.
• Main/Jeda: The center media control key can be used to play or pause audio playback.
• Kekunci Fungsi (Fn): The 'Fn' key provides access to various settings and menu navigation. Refer to the on-screen display for specific options.

Image 6.1: A hand holding the PAW S2, illustrating the placement of the control buttons for operation.

7. Penyelenggaraan dan Penjagaan

To ensure the longevity and optimal performance of your Lotoo PAW S2, follow these maintenance guidelines:

• Pembersihan: Gunakan kain lembut dan kering untuk membersihkan peranti. Elakkan menggunakan cecair pembersih atau pelarut.
• Storan: Simpan peranti di tempat yang sejuk dan kering jauh dari cahaya matahari langsung dan suhu yang melampau.
• Pengendalian: Kendalikan peranti dengan berhati-hati untuk mengelakkan kerosakan fizikal. Elakkan daripada menjatuhkan atau dikenakan impak yang kuat.
• Penjagaan Kabel: Ensure USB and audio cables are not bent sharply or strained, as this can lead to damage and signal issues.

8. Penyelesaian masalah

If you encounter issues with your Lotoo PAW S2, refer to the following common problems and solutions:

• Tiada Keluaran Bunyi:
  • Ensure the PAW S2 is correctly connected to both the source device and headphones.
  • Check the volume level on both the PAW S2 and your source device.
  • Verify that the audio output is directed to the PAW S2 in your source device's sound settings.
  • Test with different headphones and cables to rule out faulty accessories.
• Distortion or Poor Sound Quality:
  • Pastikan semua sambungan selamat dan bebas daripada serpihan.
  • Try a different USB cable, as some cables may be of lower quality and cause interference.
  • Kurangkan tahap kelantangan jika herotan berlaku pada kelantangan tinggi.
  • Pastikan audio file or streaming quality is high.
• Popping Sound When Connecting/Disconnecting Headphones:
  • A slight popping sound can sometimes occur due to electrical transients when connecting or disconnecting audio devices. This is often normal and not indicative of a fault.
  • Ensure the PAW S2 is fully powered on and stable before connecting or disconnecting headphones.
• Delay or Artifacts When Switching Tracks:
  • This can sometimes occur with certain software or operating systems. Ensure your audio playback software and device drivers are up to date.
  • Try restarting the playback application or the source device.
• Device Not Recognized by Computer/Phone:
  • Pastikan kabel USB disambungkan dengan selamat.
  • Try connecting to a different USB port or a different source device.
  • For computers, check device manager for driver issues. Install or update necessary drivers if prompted.

9. Spesifikasi

The following table outlines the key specifications for the Lotoo PAW S2:

10. Waranti dan Sokongan

For warranty information and technical support, please refer to the warranty card included in your package or visit the official LT LOTOO webtapak. Simpan bukti pembelian anda untuk tuntutan waranti.