Sarrera
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.

1. irudia: Aurrealdea eta atzealdea view of the Surfans F28 HiFi Music Player.
Paketearen edukia
Mesedez, egiaztatu behean zerrendatutako elementu guztiak zure paketean daudela:
- 1x Surfans F28 HiFi Music Player
- 1x USB-C kargatzeko kablea
- 1x 128GB Micro SD Card (pre-installed or included separately)
- 1x Erabiltzailearen eskuliburua (dokumentu hau)

2. irudia: Paketearen eduki tipikoen ilustrazioa.
Produktua amaituview
Familiarize yourself with the various components and controls of your F28 music player.
Ezaugarri nagusiak:
- Dual ESS9018 DACs: For high-resolution audio decoding and minimal distortion.
- 4.4 mm-ko irteera orekatua: Provides enhanced audio quality and power for demanding headphones.
- 3.5 mm-ko irteera bakarra: Standard audio output for common headphones.
- Bluetooth 5.2 bidirekzionala: Supports LDAC and aptX HD for high-quality wireless audio transmission and reception.
- 3.5 hazbeteko IPS ukipen-pantaila: Nabigazio eta kontrol intuitiborako.
- ALPS Analog Volume Knob: For precise volume adjustments.
- Biltegiratze zabalgarria: 512 GB arteko Mikro SD txartelak onartzen ditu.
- USB-C ataka: Kargatzeko eta datuak transferitzeko.

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.
Konfigurazioa
1. Gailua kargatzea
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. Mikro SD txartela sartzea
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. Musika transferitzea 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.
Funtzionamendu-argibideak
1. Piztu/Itzali
- Piztu: Sakatu eta eutsi pizteko botoiari (alboan dago) pantaila piztu arte.
- Itzali: Sakatu eta eutsi pizteko botoia itzaltzeko abisua agertu arte, eta ondoren baieztatu.
2. Oinarrizko nabigazioa
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. Musika erreproduzitzea
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. Bolumenaren kontrola
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. Bluetooth konexioa
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".
- Aktibatu Bluetootha.
- Erreproduzitzaileak eskuragarri dauden gailuak bilatuko ditu. Hautatu zure gailua zerrendatik parekatzeko.
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. Ekualizatzailearen ezarpenak
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. Kanpoko gailuetara konektatzea
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.
Mantentzea
- Garbiketa: Erabili zapi leun eta lehor bat gailua garbitzeko. Saihestu garbitzaile edo disolbatzaile urratzaileak erabiltzea.
- Biltegiratzea: Gorde erreproduzitzailea leku fresko eta lehor batean, eguzki-argitik eta muturreko tenperaturetatik babestuta.
- Bateria zaintzea: Bateriaren iraupena luzatzeko, saihestu bateria guztiz deskargatzea maiz. Denbora luzez gordetzen baduzu, kargatu bateria % 50 inguru hilabete batzuk behin.
Arazoak konpontzea
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Gailua ez da pizten. | Bateria gutxi; gailua izoztuta. | 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. | Aldi baterako software akatsa; pantaila-babeslearen interferentzia. | 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. |
| Bluetooth parekatze arazoak. | 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. |
| Musika files not recognized or played in incorrect order. | Ustelduta files; file system indexing issue. | Ziurtatu 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. |
Zehaztapenak
| Ezaugarri | Xehetasuna |
|---|---|
| Ereduaren izena | F28 128G |
| Produktuaren neurriak | 0.7 x 2.6 x 4.7 hazbete |
| Elementuaren pisua | 9.6 ontza |
| DAC txipa | Dual ESS9018K2M |
| Onartutako audio formatuak | DSD (DSF/DFF), FLAC/WAV (up to 384kHz/32-bit), AIFF/APE, MP3/AAC, WMA Lossless |
| Bluetooth bertsioa | 5.2 (Bidirectional, supports LDAC/aptX HD) |
| Pantailaren tamaina | 3.5 Inches IPS Touchscreen |
| Barne Biltegiratzea | 128GB (included Micro SD card) |
| Biltegiratze zabalgarria | Gehienez 512 GB Mikro SD txartelaren bidez |
| Bateria | 1x 12V battery (included), approx. 12-hour playback |
| Irteera Portuak | 4.4mm Balanced, 3.5mm Single-Ended |
| Konektibitate Teknologia | Aux, Bluetooth 5.2, USB-C |
| Ezaugarri Berezia | Berdinketa |
Bermea eta Laguntza
For warranty information and technical support, please refer to the official Surfans webwebgunera edo jarri harremanetan bezeroarentzako arreta-zerbitzura zuzenean. Gorde erosketa-agiria erosketaren frogagiri gisa berme-erreklamazioetarako.
You can visit the official Surfans Store on Amazon for more information and support: Surfans Audio Store





