SANSUI F77 Portable Walkman FM Radio User Manual

1. Product Overview

The SANSUI F77 is a versatile portable audio device designed for ease of use and multiple playback options. It functions as an FM radio, Bluetooth 5.3 speaker, and MP3 music player, supporting TF cards and USB drives. Its compact design and clear sound make it suitable for various outdoor and indoor activities.

Figure 1: SANSUI F77 Retro Radio Speaker with internal components highlighted.

Figure 2: SANSUI F77 radios in various colors.

2. Package Contents

• SANSUI F77 Portable Radio
• 18650 Rechargeable Battery (1200mAh)
• USB Charging Cable
• Hanging Rope (also functions as an antenna)
• User Manual (this document)

3. Setup Guide

1. Battery Installation

   Open the battery compartment cover on the back of the device. Insert the provided 18650 rechargeable battery, ensuring the polarity matches the diagram inside the compartment. Close the cover securely.

   

   Figure 3: Battery compartment showing 18650 battery.

2. Charging the Device

   Connect the USB charging cable to the DC 5V port on the device and the other end to a standard USB power adapter (not included) or a computer USB port. The charging indicator will illuminate. A full charge typically takes 5-6 hours.

3. Inserting Storage Media

   For MP3 playback, insert a TF card into the TF card slot or a USB flash drive into the USB port. Ensure they are inserted correctly.

   

   Figure 4: TF card, USB, and 3.5mm earphone connections.

4. Attaching the Hanging Rope/Antenna

   Attach the provided hanging rope to the designated loop on the device. This rope also functions as an external antenna for improved FM radio reception. Extend it fully for best results.

   

   Figure 5: SANSUI F77 demonstrating portability with hanging rope.

4. Operating Instructions

4.1 Power On/Off

Press and hold the power button (usually marked with a red circle and power symbol) to turn the device on or off.

4.2 Mode Selection

Press the 'M' button to cycle through available modes: FM Radio, Bluetooth, TF Card Playback, and USB Drive Playback. The current mode will be displayed on the screen.

Figure 6: Icons representing various functions of the SANSUI F77.

4.3 FM Radio Operation

• Automatic Scan: In FM mode, press and hold the Play/Pause button to automatically scan and save available radio stations.
• Manual Tuning: Use the Previous/Next track buttons to manually tune to frequencies.
• Direct Frequency Input: Use the numeric keypad (0-9) to directly enter a radio frequency (e.g., for 105.0 MHz, enter 1-0-5-0).

Figure 7: Direct frequency input using the numeric keypad.

Figure 8: Extended antenna for enhanced FM reception.

4.4 Bluetooth Pairing

1. Switch the device to Bluetooth mode. The screen will indicate Bluetooth pairing mode.
2. On your smartphone or other Bluetooth-enabled device, search for available Bluetooth devices.
3. Select "SANSUI F77" from the list to pair. A confirmation sound will indicate successful pairing.

Figure 9: SANSUI F77 connected to a smartphone via Bluetooth.

4.5 Music Playback (TF Card/USB)

• In TF Card or USB mode, the device will automatically start playing audio files.
• Use the Play/Pause button to pause or resume playback.
• Use the Previous/Next track buttons to skip tracks.
• Use the numeric keypad for digital song selection (e.g., for the 19th song, enter 1-9).
• Press and hold the Play/Pause button for single loop playback.

4.6 Volume Control

Adjust the volume using the dedicated rotary volume knob on the side of the device.

Figure 10: Side view of the SANSUI F77 with volume control and ports.

4.7 Recording Function

The device supports recording. Refer to the on-screen prompts or specific buttons for initiating and managing recordings. There are also buttons for recording deletion.

4.8 Headphone Use

Plug 3.5mm wired headphones into the headphone jack for private listening.

4.9 Sleep Shutdown

The device supports a sleep shutdown function. Consult the device's display or buttons for setting a timer for automatic power-off.

5. Maintenance

• Cleaning: Use a soft, dry cloth to clean the device. Do not use liquid cleaners or abrasive materials.
• Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods.
• Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Water Exposure: This device is not waterproof. Avoid exposure to water or high humidity.

6. Troubleshooting

• Device won't power on: Ensure the battery is correctly installed and charged. Connect to a power source to check if it powers on while charging.
• Poor FM radio reception: Fully extend the hanging rope/antenna. Try repositioning the device or moving to an area with better signal.
• Bluetooth not connecting: Ensure the device is in Bluetooth mode and discoverable. Turn off and on Bluetooth on both the SANSUI F77 and your pairing device. Make sure the SANSUI F77 is not already connected to another device.
• No sound from TF card/USB drive: Check if the TF card or USB drive is inserted correctly. Ensure the audio files are in a supported format (MP3/WAV/FLAC/APE).
• Battery not charging: Verify the USB cable and power adapter are working correctly. Check the charging port for any debris.

7. Specifications

8. User Tips

• For optimal FM radio reception, always fully extend the hanging rope, as it doubles as the antenna.
• Charge the device completely before its first use to ensure maximum battery life.
• When using a TF card or USB drive, ensure your music files are in a compatible format (MP3, WAV, FLAC, APE) for seamless playback.
• The compact size of the F77 makes it ideal for travel. Use the hanging rope to secure it to bags or clothing for easy access.

9. Warranty and Support

The SANSUI F77 comes with a standard manufacturer's warranty. Please refer to your purchase documentation for specific warranty terms and conditions. For technical support or service inquiries, please contact the seller or manufacturer directly.