1. Okwu mmalite
Welcome to the user manual for your Thomson RT850BT Bluetooth Speaker, FM Radio, and Alarm Clock. This guide provides detailed instructions on how to set up, operate, and maintain your device. Please read this manual thoroughly before use to ensure proper functionality and to maximize your experience with the RT850BT.
2. Ozi nchekwa
Iji hụ na ọrụ nchekwa na gbochie mmebi, biko debe ihe nchekwa nchekwa ndị a:
- Etinyela igwe ahụ n'ime mmiri ozuzo, mmiri ozuzo, ma ọ bụ oke okpomọkụ.
- Zere idobe nkeji n'akụkụ ebe okpomọkụ ma ọ bụ na ìhè anyanwụ.
- Gbaa mbọ hụ na ikuku ikuku kwesịrị ekwesị; egbochila oghere ventilashị ọ bụla.
- Jiri naanị ihe nkwụnye ọkụ enyere.
- Anwala ịkwasa ma ọ bụ gbanwee unit ahụ. Kpọtụrụ ndị ọrụ ruru eru ọrụ niile.
- Debe unit ahụ pụọ na mpaghara magnetik siri ike.
3. Ihe ngwugwu
Chọpụta na ihe niile dị na ngwugwu:
- Thomson RT850BT Unit
- Ihe nkwụnye ọkụ
- Akwụkwọ ntuziaka onye ọrụ

Image: Thomson RT850BT packaging, illustrating the product and its key features.
4. Ngwaahịa gafereview
4.1 Ogwe ihu

Foto: N'ihu view of the Thomson RT850BT unit, showing the LCD display, speakers, and control buttons.
- Ngosipụta LCD: Shows time, mode, and other information.
- /MODE Button: Power On/Off, switch between modes (Bluetooth, FM, AUX).
- /SLEEP/ZZ Bọtịnụ: Set sleep timer, activate snooze.
- /MEM Button: Set alarm, save/recall radio stations.
- </PREV Button: Previous track (Bluetooth), tune down (FM).
- /SCAN Button: Play/Pause (Bluetooth), auto scan (FM).
- >/NEXT Button: Next track (Bluetooth), tune up (FM).
- VOLUME- Button: Belata olu.
- VOLUME+ Button: Welie olu.
4.2 Ogwe azụ

Foto: N'azụ view of the Thomson RT850BT, highlighting the power supply, Line In (AUX-IN), and USB-C charge output ports.
- Power Supply (DC IN 5V): Jikọọ ihe nkwụnye ọkụ enyere.
- Line In (AUX-IN): Ntinye ọdịyo 3.5mm maka ngwaọrụ mpụga.
- Charge Output (USB-C): USB Type-C port for charging external devices.
5. Nhazi
5.1 Njikọ ike
- Connect the power adapter to the DC IN 5V port on the rear of the RT850BT.
- Tinye nkwụnye ọkụ n'ime oghere mgbidi ọkọlọtọ.
- The unit will power on automatically or enter standby mode.
5.2 Initial Power On and Clock Setting

Image: Close-up of the RT850BT's LCD display showing the time, 10:50 PM, and the 'PM' indicator.
- If the unit is in standby, press the /Ụdị bọtịnụ iji gbanye ya.
- Ka ịtọọ elekere, pịa ma jide /MEM button until the time display flashes.
- Jiri ihe </PREV na >/NEXT Pịa bọtịnụ iji hazie awa ahụ. /MEM iji gosi.
- Jiri ihe </PREV na >/NEXT Pịa bọtịnụ iji hazie nkeji ahụ. /MEM iji gosi.
- Saa ara na ɛte.
6. Ntuziaka ọrụ
6.1 Ọnọdụ Bluetooth

Image: Close-up of the RT850BT's LCD display indicating 'bt' for Bluetooth mode, along with the current time.
- Pịa /Ụdị button repeatedly until 'bt' appears on the display. The unit is now in Bluetooth pairing mode.
- Na ekwentị mkpanaaka gị, gbanye Bluetooth wee chọọ ngwaọrụ dị.
- Select 'RT850BT' from the list to pair. A confirmation tone will sound upon successful connection.
- You can now play audio from your device through the RT850BT.
- Jiri ihe / Nyochaa button to Play/Pause, and </PREV / >/NEXT bọtịnụ ka ịwụ egwu.
- Gbanwee olu site na iji Mpịakọta- na Mpịakọta + bọtịnụ.
Ọnọdụ redio FM 6.2
- Pịa /Ụdị button repeatedly until the FM frequency appears on the display.
- Nyocha akpaaka: Pịa ma jide / Nyochaa button to automatically scan and save available FM stations (up to 50 stations).
- Akwụkwọ ntuziaka: Pịa nkenke </PREV or >/NEXT to fine-tune the frequency. Press and hold to scan for the next available station.
- Recall Saved Stations: Pịa nkenke /MEM button to cycle through saved stations.
6.3 Ọrụ Elekere Mkpu
The RT850BT supports setting multiple alarms.
- Na ọnọdụ njikere, pịa ma jide /MEM button until 'AL1' or 'AL2' flashes.
- Jiri </PREV na >/NEXT iji tọọ oge mkpu ahụ, wee pịa /MEM iji gosi.
- Tinyegharịa maka nkeji.
- Select the alarm source (Buzzer or FM Radio) using </PREV na >/NEXT, wee pịa /MEM.
- To activate/deactivate an alarm, briefly press the /MEM button in standby mode to cycle through alarm settings (AL1 ON/OFF, AL2 ON/OFF).
- Mgbe oti mkpu na-ada, pịa /SLEEP/ZZ for snooze (alarm will sound again after 9 minutes) or press /Ụdị to turn off the alarm for the day.
6.4 AUX-IN Mode
- Connect an external audio device (e.g., MP3 player, smartphone) to the 'Line In' (AUX-IN) port on the rear panel using a 3.5mm audio cable (not included).
- Pịa /Ụdị button repeatedly until 'AUX' appears on the display.
- Audio from the connected device will now play through the RT850BT. Control playback from your external device.
6.5 Ọrụ Dimmer
The display brightness can be adjusted to three intensity levels.
- In any mode, briefly press the /SLEEP/ZZ button to cycle through the brightness levels.
6.6 Ọrụ ụra
Set a timer for the unit to automatically turn off.
- While the unit is on, press the /SLEEP/ZZ button repeatedly to select the desired sleep timer duration (e.g., 15, 30, 60, 90 minutes, OFF).
- The unit will automatically power off after the selected time.
6.7 USB-C ọdụ ụgbọ mmiri
The USB-C port on the rear panel is for charging external devices.
- Connect your compatible device's USB-C charging cable to the 'Charge output' port.
- Ensure the RT850BT is powered on or in standby mode for charging functionality.
7. Nlekọta
To maintain the performance and appearance of your RT850BT:
- Nhicha: Use a soft, dry cloth to clean the exterior. Do not use abrasive cleaners, waxes, or solvents.
- Nchekwa: Ọ bụrụ na ị na-echekwa ihe dị n'ime ya ruo ogologo oge, wepụ ya na ihe nkwụnye ọkụ eletrik ma debe ya n'ebe dị jụụ ma kpọọ nkụ.
- Igwe ikuku: Ensure the ventilation grilles are free from dust and obstructions.
8. Nchọpụta nsogbu
If you encounter issues with your RT850BT, refer to the following table for common problems and solutions:
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| Enweghị ike | Ejikọghị ihe nkwụnye ọkụ ma ọ bụ ụzọ adịghị mma. | Hụ na e jikọtara ihe nkwụnye ike ahụ nke ọma ma ebe a na-esi ya arụ ọrụ. |
| Enweghị ụda | Volume too low, incorrect mode, or device not paired (Bluetooth). | Increase volume. Check if the correct mode (BT, FM, AUX) is selected. Re-pair Bluetooth device. |
| Njikọ Bluetooth ada ada | Device too far, Bluetooth not enabled on source, or RT850BT not in pairing mode. | Ensure devices are within range. Enable Bluetooth on your device. Set RT850BT to 'bt' mode. |
| Nnabata FM adịghị mma | Mgbama na -adịghị ike. | Adjust the unit's position to improve reception. |
| Oti mkpu anaghị ada ụda | Agbaghị mkpu ma ọ bụ ahazighị ya nke ọma. | Verify alarm settings and ensure it is set to ON. |
9. Nkọwapụta
- Ụdị: RT850BT
- Ụdị Bluetooth: 5.3
- Tuner redio: FM (87.5-108 MHz)
- Station Memory: Ụlọ ọrụ FM 50
- Ntinye odiyo: AUX-IN (3.5mm)
- Ngosipụta: LCD with 3-intensity dimmer
- Mpụta ike: 30W Total Music Power
- Nchaji ọdụ ụgbọ mmiri: USB-C (for external devices)
- Isi mmalite ike: Ọkụ eletriki ejiri eriri (DC 5V)
- Arọ: 600 grams
10. Akwụkwọ ikike na nkwado
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your local Thomson customer service. Keep your proof of purchase for warranty claims.





