SANSUI F50/F51 Portable Bluetooth Speaker and Video Player User Manual

1. Introduction

The SANSUI F50/F51 is a versatile portable device combining a multi-band radio, Bluetooth speaker, and multimedia player with a high-definition screen. It supports various audio and video formats, e-book reading, and playback from USB drives and TF cards. This manual provides detailed instructions to help you get the most out of your device.

Figure 1: SANSUI F50/F51 devices showing menu and video playback.

2. Key Features

• **High-Definition Display:** Available in 4.3-inch (F50) or 7.0-inch (F51) IPS screens for clear video and image viewing.
• **Multi-Band Radio:** Supports FM, MW (AM), and SW bands with a 360-degree rotating 53cm telescopic antenna for enhanced reception. Includes automatic station search and campus broadcasting support for FM.
• **Bluetooth Connectivity:** Bluetooth Version 5.0 (F50) or 5.3 (F51) for wireless audio streaming with a stable connection up to 10 meters.
• **Multimedia Playback:** Supports music, video, and photo playback from USB flash drives and dual TF (MicroSD) cards.
• **E-book Reader:** Capable of displaying e-book files in TXT and ANSI formats.
• **Audio Output:** Features a 3.5mm headphone jack for private listening.
• **Internal Speaker:** Equipped with a full-range internal magnetic speaker (2.5-inch for F50, 3-inch for F51) for clear sound.
• **Long Battery Life:** Powered by 3 detachable 18650 lithium batteries (1200mAh each), providing over 8 hours of continuous use on a full charge.
• **Portable Design:** Lightweight and compact with a leather handle (F51) or strap (F50) for easy carrying.
• **User-Friendly Controls:** Intuitive knob-type volume and tuning controls, along with dedicated buttons for various functions.
• **Charging:** Supports Huawei Type-C charging interface.

Figure 2: Multimedia functions on the large screen display.

Figure 3: The 7-inch HD screen of the F51 model.

Figure 4: The 4.3-inch screen of the F50 model.

3. Components and Controls

Familiarize yourself with the various parts and controls of your SANSUI F50/F51 device.

Figure 5: Product details and controls (F51 model shown).

• **Display Screen:** High-definition screen for video, images, and menu navigation.
• **Telescopic Antenna:** Extendable antenna for radio reception.
• **Control Knobs:**
  • Volume Control: Adjusts the audio output level.
  • Tuning Control: For manual radio frequency selection.
• **Function Buttons:**
  • SW/MW/FM: Band selection for radio.
  • Video/Bluetooth/Menu/Return: Navigation and mode selection.
  • Play/Pause, Skip Forward/Backward: Media playback controls.
  • Number Pad: For direct frequency input or song selection.
• **Ports:**
  • USB Port: For USB flash drive playback.
  • TF Card Slots (TF1/TF2): For TF card playback (supports dual cards on F51).
  • 3.5mm Headphone Jack: For connecting wired headphones.
  • Type-C Charging Port: For charging the device.
• **Speaker:** Internal magnetic speaker located on the device body.
• **Battery Compartment:** Located on the side/back for inserting 18650 lithium batteries.
• **Hanging Rope/Strap:** For portability.

4. Initial Setup

4.1. Battery Installation and Charging

1. Locate the battery compartment cover on the side or back of the device.
2. Open the cover and insert three 18650 lithium batteries (1200mAh each) according to the polarity markings.
3. Close the battery compartment cover securely.
4. Connect the provided Type-C charging cable to the device's charging port and the other end to a DC 5V/1A power adapter (not included).
5. Allow the device to charge fully before first use. A full charge provides approximately 8-10 hours of operation.

Figure 6: Battery installation and charging (F51 model shown).

4.2. Preparing Media for Playback

To play music, videos, images, or e-books, you need to load them onto a TF card or USB flash drive.

1. Download your desired media files (music, videos, images, e-books) to a TF card or USB flash drive.
2. For audio files with lyrics, ensure the corresponding ".LRC" lyric file is saved in the same folder as the audio file.
3. Insert the prepared TF card into one of the TF card slots or the USB flash drive into the USB port on the device.

Figure 7: Inserting TF cards and USB drive.

5. Operating Instructions

5.1. Power On/Off and Volume Control

• **Power On:** Press and hold the power button (usually marked with a play/pause icon) until the screen lights up.
• **Power Off:** Press and hold the power button again.
• **Volume Adjustment:** Rotate the volume knob (typically on the top or side) to increase or decrease the sound level.

5.2. Radio Operation (FM/MW/SW)

1. Extend the telescopic antenna fully for optimal reception.
2. Press the **FM**, **MW**, or **SW** button to select the desired radio band.
3. **Automatic Search:** Press and hold the "Play/Pause" button or a dedicated auto-search button (if available) to scan and save available stations.
4. **Manual Tuning:** Rotate the tuning knob to manually search for stations.
5. **Digital Selection:** Use the number pad to directly input a specific frequency.

Figure 8: Radio antenna and band selection.

5.3. Bluetooth Playback

1. Press the **Bluetooth** button to enter Bluetooth mode. The screen will indicate that it's searching for devices.
2. On your mobile device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
3. Select "SANSUI F50" or "SANSUI F51" from the list of found devices to pair.
4. Once paired, you can play audio from your mobile device through the SANSUI speaker.

Figure 9: Bluetooth connection in progress.

5.4. Media Playback (USB/TF Card)

After inserting a USB drive or TF card with media files:

1. Press the **Menu** button to navigate to the main menu.
2. Select "Music," "Video," or "Photo" depending on the type of media you wish to play.
3. Browse the files on your USB drive or TF card using the navigation buttons.
4. Press the "Play/Pause" button to start playback. Use the skip buttons to navigate between files.
5. For music with lyrics, ensure the ".LRC" file is present in the same directory as the audio file for lyrics to display.

Figure 10: USB flash drive playback.

Figure 11: TF card playback.

5.5. E-book Reading

To read e-books:

1. Ensure your e-book files (TXT, ANSI) are saved on a TF card or USB drive.
2. Navigate to the main menu and select "E-book."
3. Browse and select the desired e-book file to open it.

5.6. Headphone Use

Plug any standard 3.5mm wired headphones into the headphone jack for private listening. The internal speaker will automatically mute when headphones are connected.

Figure 12: Headphone playback support.

6. Maintenance

6.1. Cleaning

• Use a soft, dry cloth to clean the exterior of the device.
• For stubborn dirt, slightly dampen the cloth with water. Do not use harsh chemicals or abrasive cleaners.
• Keep the screen clean with a microfiber cloth to avoid scratches.

6.2. Battery Care

• To prolong battery life, avoid fully discharging the batteries frequently.
• If the device will not be used for an extended period, remove the batteries to prevent leakage.
• Store batteries in a cool, dry place.

6.3. Storage

• Store the device in a cool, dry environment away from direct sunlight and extreme temperatures.
• Avoid exposing the device to moisture or dust.

7. Troubleshooting

8. Specifications

8.1. Model F51 (7.0-inch Screen)

8.2. Model F50 (4.3-inch Screen)

Figure 13: F50 model dimensions and weight.

Figure 14: Internal speaker configuration.

9. User Tips

• **Video Playback:** While the device supports video playback, it is primarily designed for local media files stored on TF cards or USB drives. It does not support live TV reception or streaming services.
• **LRC Lyrics:** For lyrics to display with your music, ensure the ".LRC" file has the exact same name as the audio file and is located in the same folder.
• **Portability:** Utilize the integrated leather handle (F51) or strap (F50) for secure and convenient carrying, especially during outdoor activities.

Figure 15: Portable design with hanging rope.

10. Product Demonstration Video

11. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact the retailer/manufacturer directly. Keep your proof of purchase for any warranty claims.