Уводзіны
The Surfans F28 is a high-fidelity portable music player designed to deliver an immersive audio experience. Featuring dual ESS9018 DACs, a 4.4mm balanced output, and comprehensive Bluetooth 5.2 support including LDAC and aptX HD, the F28 supports a wide range of lossless audio formats. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your device to ensure optimal performance and longevity.

Малюнак 1: Пярэдняя і задняя часткі view of the Surfans F28 HiFi Music Player.
Змест пакета
Калі ласка, пераканайцеся, што ўсе пералічаныя ніжэй прадметы прысутнічаюць у вашай упакоўцы:
- 1x Surfans F28 HiFi Music Player
- 1x USB-C зарадны кабель
- 1x 128GB Micro SD Card (pre-installed or included separately)
- 1x Кіраўніцтва карыстальніка (гэты дакумент)

Figure 2: Illustration of typical package contents.
Прадукт скончаныview
Familiarize yourself with the various components and controls of your F28 music player.
Асноўныя характарыстыкі:
- Dual ESS9018 DACs: For high-resolution audio decoding and minimal distortion.
- 4.4 мм збалансаваны выхад: Provides enhanced audio quality and power for demanding headphones.
- 3.5-мм аднабаковы выхад: Standard audio output for common headphones.
- Двунакіраваны Bluetooth 5.2: Supports LDAC and aptX HD for high-quality wireless audio transmission and reception.
- 3.5-цалевы сэнсарны IPS-экран: For intuitive navigation and control.
- ALPS Analog Volume Knob: For precise volume adjustments.
- Пашыраная памяць: Падтрымлівае карты Micro SD да 512 ГБ.
- Порт USB-C: Для зарадкі і перадачы дадзеных.

Figure 3: The F28 player showcasing its display and audio capabilities.

Figure 4: The dual ESS9018K2M DAC chips, central to the F28's high-fidelity audio.

Figure 5: Top panel with 4.4mm balanced and 3.5mm single-ended audio outputs, and the ALPS analog volume knob.
Настройка
1. Зарадка прылады
Before first use, fully charge the F28. Connect the included USB-C cable to the player's USB-C port and the other end to a USB power adapter (5V/1A recommended) or a computer's USB port. The charging indicator will show the charging status. A full charge typically takes several hours.
2. Устаўка карты Micro SD
The F28 supports Micro SD cards up to 512GB. Locate the Micro SD card slot on the bottom of the device. Gently insert the Micro SD card with the gold contacts facing down until it clicks into place. To remove, push the card in slightly until it springs out.

Figure 6: Inserting the Micro SD card and connecting via USB-C for data transfer.
3. Перадача музыкі Files
Connect the F28 to your computer using the USB-C cable. The player will appear as a removable storage device. You can then drag and drop your music files directly into the Micro SD card's folders. The F28 supports various lossless formats including DSD (DSF/DFF), FLAC/WAV (up to 384kHz), AIFF/APE, as well as MP3/AAC.

Figure 7: Supported audio file formats for the F28 player.
Інструкцыя па эксплуатацыі
1. Уключэнне/выключэнне харчавання
- Уключэнне: Націсніце і ўтрымлівайце кнопку харчавання (размешчаную збоку), пакуль не падсвеціцца экран.
- Выключэнне: Press and hold the power button until a power-off prompt appears, then confirm.
2. Базавая навігацыя
The F28 features a 3.5-inch IPS touchscreen for primary navigation. Swipe gestures and taps are used to select options and move between menus. Physical buttons on the side provide additional control for playback (play/pause, next/previous track) and menu navigation.
3. Прайграванне музыкі
From the main menu, select "My Music" or "Folder" to browse your audio files. Tap on a song to begin playback. The playback screen displays track information, progress, and playback controls.
4. Рэгулятар гучнасці
Adjust the volume using the gold-colored ALPS analog knob located on the top right of the device. Rotate clockwise to increase volume and counter-clockwise to decrease. The volume level will be displayed on the screen.
5. Злучэнне Bluetooth
The F28 supports Bidirectional Bluetooth 5.2 with LDAC and aptX HD codecs for high-quality wireless audio. To pair with Bluetooth headphones or speakers:
- Go to "System Settings" and select "Bluetooth".
- Уключыце Bluetooth.
- Плэер пачне пошук даступных прылад. Выберыце прыладу са спісу для спалучэння.
The F28 can also act as a Bluetooth receiver, allowing you to stream audio from your phone or PC to the player.

Figure 8: The F28 features a Bluetooth 5.2 chip for stable and high-quality wireless connections.
6. Налады эквалайзера
The F28 includes an equalizer to customize your sound. Navigate to the "Equalizer" option in the settings. You can choose from various presets or create a custom sound profile by adjusting the frequency bands.

Figure 9: Customizing audio with the built-in equalizer.
7. Падключэнне да знешніх прылад
Use the 4.4mm balanced or 3.5mm single-ended output to connect to headphones, amplifiers, or speakers. The USB-C port also supports USB DAC functionality, allowing the F28 to act as an external sound card for your computer.

Figure 10: The F28 can be connected to various audio systems, including acting as a USB DAC for computers.
Тэхнічнае абслугоўванне
- Уборка: Для чысткі прылады выкарыстоўвайце мяккую сухую тканіну. Пазбягайце выкарыстання абразіўных ачышчальнікаў або растваральнікаў.
- захоўванне: Захоўвайце прайгравальнік у прахалодным, сухім месцы, удалечыні ад прамых сонечных прамянёў і экстрэмальных тэмператур.
- Сыход за батарэяй: Каб падоўжыць тэрмін службы акумулятара, пазбягайце частай поўнай разрадкі. Пры працяглым захоўванні зараджайце акумулятар прыкладна да 50% кожныя некалькі месяцаў.
Ліквідацыю непаладак
| праблема | Магчымая прычына | Рашэнне |
|---|---|---|
| Прылада не ўключаецца. | Нізкі зарад батарэі; прылада завісла. | Charge the device for at least 30 minutes. If still unresponsive, try holding the power button for 10-15 seconds for a hard reset. |
| Touchscreen is unresponsive or slow. | Temporary software glitch; screen protector interference. | Restart the device. Ensure the screen is clean and free of debris. If using a screen protector, ensure it is properly applied and not too thick. |
| Праблемы са спалучэннем Bluetooth. | Device not in pairing mode; distance; interference. | Ensure both devices are in pairing mode and within range. Turn off and on Bluetooth on both devices. Clear previous pairings if necessary. |
| Low volume via Bluetooth. | Volume settings on both devices; codec compatibility. | Increase volume on both the F28 and the connected Bluetooth device. Ensure optimal codec (LDAC/aptX HD) is selected if supported by the receiving device. |
| Музыка files not recognized or played in incorrect order. | Пашкоджаны files; file system indexing issue. | Забяспечыць files are in supported formats. Re-scan the music library from the player's settings. If issues persist, try reformatting the Micro SD card (backup data first) and re-transferring files. Note: Some players may sort by filename alphabetically rather than track number metadata. |
Тэхнічныя характарыстыкі
| Асаблівасць | Дэталь |
|---|---|
| Назва мадэлі | F28 128G |
| Памеры прадукту | 0.7 х 2.6 х 4.7 цалі |
| Вага прадмета | 9.6 унцыі |
| Чып ЦАП | Dual ESS9018K2M |
| Падтрымліваюцца аўдыяфарматы | DSD (DSF/DFF), FLAC/WAV (up to 384kHz/32-bit), AIFF/APE, MP3/AAC, WMA Lossless |
| Версія Bluetooth | 5.2 (Bidirectional, supports LDAC/aptX HD) |
| Памер экрана | 3.5-цалевы сэнсарны IPS-экран |
| Унутраная памяць | 128GB (included Micro SD card) |
| Сховішча з магчымасцю пашырэння | Да 512 ГБ праз карту Micro SD |
| акумулятар | 1x 12V battery (included), approx. 12-hour playback |
| Выхадныя парты | 4.4mm Balanced, 3.5mm Single-Ended |
| Тэхналогія падлучэння | Aux, Bluetooth 5.2, USB-C |
| Асаблівасць | Эквалайзер |
Гарантыя і падтрымка
For warranty information and technical support, please refer to the official Surfans webсайт або звярніцеся непасрэдна ў службу падтрымкі кліентаў. Захоўвайце чэк аб куплі як пацвярджэнне пакупкі для гарантыйных прэтэнзій.
You can visit the official Surfans Store on Amazon for more information and support: Surfans Audio Store