1. Nhanganyaya
Thank you for choosing the Retekess TR640 Internet Radio. This manual provides detailed instructions for setting up, operating, and maintaining your device. Please read this manual thoroughly before use to ensure optimal performance and safe operation. The TR640 offers a wide range of listening options including Internet Radio, DAB, FM, Bluetooth, and media playback via USB and TF card.
2. Chigadzirwa Pamusoroview
2.1 Package Zviri mukati
Ita shuwa kuti zvinhu zvese zviripo mupakeji:
- 1x Retekess TR640 Portable Internet Radio
- 1x Power Cable
- 1x Chinyorwa cheMushandisi

Image: The package includes the Retekess TR640 radio, a power cable, and the user manual.
2.2 Device Features
The Retekess TR640 is a versatile radio with the following key features:
- Multi-band support: Internet Radio, FM, DAB.
- Multiple connection options: Wi-Fi, Bluetooth, USB, TF card.
- Intuitive control panel with remote control capability.
- Dual power modes: AC or DC 6V (4x AA 1.5V batteries, not included).
- One-click mute function.
- Backlit display with adjustable brightness.
- 7 EQ sound settings (Classic, Rock, Pop, Jazz, Flat, Dance, Manual).
- Sleep timer and alarm clock functions.
- Time zone configuration with automatic network updates.
- 3.5mm audio jack for headphones.
2.3 Kudzora uye Maports
Familiarize yourself with the buttons, knobs, and ports on your TR640 radio.
Video: This video demonstrates the functions of the main control buttons on the front panel, including power, menu navigation, mute, preset, and confirmation.
Video: This video highlights the antenna, AC power input, color display, TF card slot, USB port, and 3.5mm headphone jack.
- Bhatani reSimba/Menu: Press to turn on/off, or enter the main menu.
- Left/Right Navigation: Use to navigate menus, skip tracks (music playback), or fast-forward/rewind (hold).
- Mute Bhatani: Activate/deactivate mute function.
- Preset Bhatani: Access channel list or manual channel storage mode.
- Enter/Play/Pause Button: Confirm selections, play/pause music.
- TUN Knob: Select channels, menu tasks, adjust time.
- Vhoriyamu Knob: Rongedza inzwi.
- TF Kadhi Slot: Supports up to 256GB, compatible with MP3/WMA/WAV/APE/FLAC.
- USB Port: Compatible with MP3/WMA/WAV/APE/FLAC.
- 3.5mm Headphone Jack: Zvekuterera wega.
- Antenna: Extend for optimal signal reception.
- AC-IN Port: Connect the power cable for AC power.
- Battery Compartment: For 4x AA 1.5V batteries (DC 6V).
3. Setup
3.1 Kugonesa Pamudziyo Wako
The TR640 can be powered by AC or DC (batteries).
- AC Simba: Insert the provided power cable into the AC-IN port on the side of the radio and plug it into a wall outlet.
- Battery Power: Open the battery compartment on the back and insert 4x AA 1.5V batteries (not included), ensuring correct polarity.

Image: The radio can be powered via AC cable or 4 AA batteries (not included).
3.2 Kugadzika Kwekutanga Kwenetiweki
For Internet Radio functionality, you need to connect the device to a Wi-Fi network.
- Batidza redhiyo nekudzvanya bhatani reSimba.
- The display will prompt you to "Configure network?". Select "Yes" using the navigation buttons and press "Enter".
- Redhiyo ichatsvaga ma network eWi-Fi aripo. Sarudza network yako kubva pane runyorwa.
- Enter your Wi-Fi password using the on-screen keyboard and navigation buttons. Press "Enter" to confirm.
- Once connected, the radio will update the time zone automatically.
Video: This video demonstrates how to connect the radio to a Wi-Fi network and access Internet Radio stations.
4. Operating Instructions
4.1 Internet Radio
Wana zviuru zvezviteshi zveredhiyo kubva kumativi ese epasi uchishandisa Wi-Fi yako.
- Ensure the radio is connected to Wi-Fi (see Section 3.2).
- Navigate to "Internet Radio" from the main menu.
- Browse stations by location, genre, or popular stations. Use the TUN knob to scroll and "Enter" to select.
- Once a station is selected, it will begin buffering and playing.
- You can save your favorite stations as presets (see Section 4.5).
4.2 DAB/FM Radio
Enjoy local digital (DAB) and analog (FM) radio broadcasts.
- Wedzera antenna yeteresikopu kuti ugone kugamuchira zvakanaka.
- From the main menu, select "DAB Radio" or "FM Radio".
- Scanning Channels: Press the "Preset" button to initiate a channel scan. The radio will automatically search and store available stations.
- Kugadzirisa Nemaoko (FM): Use the TUN knob to manually adjust the frequency.
- Use the Left/Right navigation buttons to cycle through stored stations.
Video: This video demonstrates how to scan for and tune into FM radio stations.
4.3 Kubatana kweBluetooth
Connect your smartphone or other Bluetooth-enabled devices to play audio wirelessly.
- From the main menu, select "Bluetooth". The radio will enter pairing mode.
- Pafoni yako, vhura Bluetooth wobva watsvaga "RETEKESS TR640".
- Select the radio from your device's Bluetooth list to pair.
- Once connected, you can play audio from your device through the radio.
Video: This video illustrates the process of connecting a mobile device to the radio via Bluetooth.
4.4 USB/TF Kadhi Kutamba
Play your personal music files directly from a USB drive or TF card.
- Isa USB drive mu USB port kana TF card muTF card slot.
- The radio will automatically detect the storage device and display its contents. If not, navigate to "MP3 Player" from the main menu and select "USB" or "TF Card".
- Use the navigation buttons to browse and select your desired audio files. Press "Enter" to play.
- Supported formats include MP3, WMA, WAV, APE, and FLAC.
Video: This video demonstrates playing music from a USB drive.
Video: This video demonstrates playing music from a TF card.
4.5 Saving and Accessing Presets
The radio can store up to 90 favorite stations.
- Tune to your desired station (Internet, DAB, or FM).
- Press and hold the "Preset" button.
- Use the navigation buttons to select an empty preset slot.
- Press "Enter" to save the station.
- To access saved presets, briefly press the "Preset" button and use navigation to select.

Image: The radio has a station storage capacity of 90 presets.
4.6 Zvirongwa zveEQ
Customize your audio experience with various equalizer presets.
- Navigate to the EQ settings in the main menu.
- Choose from Classic, Rock, Pop, Jazz, Flat, Dance, or Manual settings.
4.7 Sleep Timer and Alarm Clock
Set a sleep timer to automatically turn off the radio or an alarm to wake you up.
- Access "Sleep Timer" or "Alarm Clock" in the main menu.
- Follow the on-screen prompts to set your desired time and duration.
5. Kuchengeta
Kuti uve nechokwadi chekuti redhiyo yako yeRetekess TR640 inogara kwenguva refu uye inoshanda zvakanaka, tevera nhungamiro idzi dzekuchengetedza:
- Kuchenesa: Use a soft, dry cloth to clean the exterior of the radio. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
- Kuchengeta: When not in use for extended periods, store the radio in a cool, dry place away from direct sunlight and extreme temperatures. Remove batteries if storing for a long time to prevent leakage.
- Antenna Care: Handle the telescopic antenna gently to avoid bending or breaking. Extend it fully for best reception and retract it when not in use to protect it.
- Liquid Exposure: Keep the radio away from water and other liquids. If liquid enters the device, immediately disconnect power and consult a qualified technician.
- Kufefetedza Ensure the ventilation grilles on the back of the radio are not blocked to prevent overheating.
6. Kugadzirisa matambudziko
If you encounter issues with your TR640 radio, refer to the following common problems and solutions:
| Dambudziko | Zvinogona Kukonzera | Solution |
|---|---|---|
| Hapana simba | Power cable not connected, batteries depleted/incorrectly inserted. | Check AC power connection. If using batteries, ensure they are fresh and inserted with correct polarity. |
| Hapana ruzha | Volume too low, mute activated, headphones connected. | Increase volume. Press the Mute button to deactivate. Disconnect headphones if sound is desired from speaker. |
| Poor radio reception (FM/DAB) | Antena haina kurebeswa, chiratidzo chisina simba, kupindira. | Fully extend the telescopic antenna. Try repositioning the radio. Perform a channel scan. |
| Haikwanisi kubatana neWi-Fi | Password isiriyo, haisipo, dambudziko re network. | Double-check Wi-Fi password. Move closer to the router. Restart your router. |
| USB/TF card not recognized | Hazvina kururama file format, card/drive corrupted, improperly inserted. | Iva nechokwadi files are in supported formats (MP3/WMA/WAV/APE/FLAC). Reinsert the card/drive. Try a different card/drive. |
| Internet Radio buffering frequently | Weak Wi-Fi signal, slow internet connection. | Improve Wi-Fi signal strength. Check your internet speed. |
7. Zvinotsanangurwa
| Feature | Detail |
|---|---|
| Brand | Retekess |
| Model | TR640 |
| Color | Nhema |
| Special Function | Portable |
| Kubatana Technology | Auxiliary, Wi-Fi, Bluetooth, USB, TF Card |
| Product Dimensions | 21 masendimita (L) x 12.5 masendimita (W) x 6 masendimita (H) |
| Sravana Sameeralu Serial XNUMXth Tuner Technology | Digital |
| Style | Mazuvano |
| Simba Source | AC Powered, Battery Powered (4x AA 1.5V) |
| Mabhendi eRedhiyo Anotsigirwa | FM, DAB (Volume III), Internet Radio |
| Audio Formats (USB/TF) | MP3, WMA, WAV, APE, FLAC |
8. Warranty uye Tsigiro
Retekess products are designed and manufactured to the highest quality standards. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Retekess website. Chengeta risiti rako rekutenga seumboo hwekutenga.





