Ro-ràdh
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.

Figear 1: Aghaidh is cùl view of the Surfans F28 HiFi Music Player.
Susbaint pacaid
Dèan cinnteach gu bheil na nithean gu lèir a tha air an liostadh gu h-ìosal an làthair sa phacaid agad:
- 1x Surfans F28 HiFi Music Player
- 1x càball cosgais USB-C
- 1x 128GB Micro SD Card (pre-installed or included separately)
- 1x Leabhar-làimhe Cleachdaiche (an sgrìobhainn seo)

Figure 2: Illustration of typical package contents.
Bathar seachadview
Familiarize yourself with the various components and controls of your F28 music player.
Prìomh fheartan:
- Dual ESS9018 DACs: For high-resolution audio decoding and minimal distortion.
- Toradh cothromaichte 4.4mm: Provides enhanced audio quality and power for demanding headphones.
- Toradh Aon-cheann 3.5mm: Standard audio output for common headphones.
- Bluetooth dà-shligheach 5.2: Supports LDAC and aptX HD for high-quality wireless audio transmission and reception.
- Sgrion-suathaidh IPS 3.5-òirleach: For intuitive navigation and control.
- ALPS Analog Volume Knob: For precise volume adjustments.
- Stòradh a ghabhas leudachadh: Supports Micro SD cards up to 512GB.
- Port USB-C: Airson cosgais agus gluasad dàta.

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.
Suidhich
1. A 'cur cosgais air an inneal
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. Cuir a-steach an Micro SD Card
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. A’ Gluasad Ceòl 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.

Figear 7: Fuaim le taic file formats for the F28 player.
Stiùireadh Obrachaidh
1. Cumhachd air / dheth
- Cumhachd air: Brùth is cum sìos am putan cumhachd (suidhichte air an taobh) gus an las an sgrion suas.
- Cumhachd dheth: Press and hold the power button until a power-off prompt appears, then confirm.
2. Seòladh Bunaiteach
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. Cluich Ciùil
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. Smachd tomhas-lìonaidh
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. Ceangalachd 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".
- Tionndaidh Bluetooth AIR.
- Nì an cluicheadair sganadh airson innealan a tha rim faighinn. Tagh an inneal agad bhon liosta gus a cheangal.
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. Equalizer roghainnean
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. A’ ceangal ri innealan taobh a-muigh
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.
Cumail suas
- Glanadh: Cleachd clò bog, tioram airson an inneal a ghlanadh. Seachain innealan-glanaidh no fuasglaidhean sgrìobach a chleachdadh.
- Stòradh: Stòraich an cluicheadair ann an àite fionnar, tioram air falbh bho sholas dìreach na grèine agus teòthachd anabarrach.
- Cùram Bataraidh: Gus beatha a’ bhataraidh a leudachadh, seachain a bhith a’ leigeil às a’ bhataraidh gu tur gu tric. Ma bhios tu ga stòradh airson ùine mhòr, cuir cosgais air a’ bhataraidh gu timcheall air 50% gach beagan mhìosan.
Fuasgladh thrioblaidean
| Trioblaid | Adhbhar a dh’fhaodadh a bhith ann | Fuasgladh |
|---|---|---|
| Chan eil cumhachd aig an inneal. | Bataraidh ìosal; inneal reòta. | 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. | Mearachd bathar-bog sealach; bacadh dìonadair sgrion. | 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. |
| Cùisean paidhreachaidh 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. |
| Ceol files not recognized or played in incorrect order. | Truaillichte files; file system indexing issue. | Dèan cinnteach 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. |
Sònrachaidhean
| Feart | Mion-fhiosrachadh |
|---|---|
| Ainm Modail | F28 128G |
| Meudan toraidh | 0.7 x 2.6 x 4.7 òirleach |
| Cuideam nì | 9.6 unnsa |
| DAC Chip | Dual ESS9018K2M |
| Cruthan claisneachd le taic | DSD (DSF/DFF), FLAC/WAV (up to 384kHz/32-bit), AIFF/APE, MP3/AAC, WMA Lossless |
| Tionndadh Bluetooth | 5.2 (Bidirectional, supports LDAC/aptX HD) |
| Meud sgrion | 3.5 Inches IPS Touchscreen |
| Stòradh a-staigh | 128GB (included Micro SD card) |
| Stòradh a ghabhas leudachadh | Up to 512GB via Micro SD card |
| Bataraidh | 1x 12V battery (included), approx. 12-hour playback |
| Puirt Toraidh | 4.4mm Cothromach, 3.5mm Aon-cheannach |
| Teicneòlas ceangail | Aux, Bluetooth 5.2, USB-C |
| Feart sònraichte | Cothromaiche |
Barantas agus Taic
For warranty information and technical support, please refer to the official Surfans weblàrach-lìn no cuir fios chun t-seirbheis teachdaiche aca gu dìreach. Cùm do chuidhteas ceannach mar dhearbhadh ceannach airson tagraidhean barantais.
You can visit the official Surfans Store on Amazon for more information and support: Surfans Audio Store