1. Introduction
Thank you for purchasing the Trexonic 3-Speed Turntable with CD Player, FM Radio, Bluetooth, USB/SD Recording, and Wired Shelf Speakers. This comprehensive audio system allows you to enjoy music from various sources including vinyl records, CDs, FM radio, Bluetooth-enabled devices, and USB/SD media. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.
2. Safety Instructions
- Read all instructions carefully before operating the unit.
- Keep this manual for future reference.
- Do not expose the unit to rain, moisture, or extreme temperatures.
- Ensure proper ventilation; do not block any ventilation openings.
- Place the unit on a stable, flat surface.
- Disconnect the power cord from the outlet during lightning storms or when unused for long periods.
- Do not attempt to service the unit yourself. Refer all servicing to qualified personnel.
- Keep the unit away from direct sunlight, heat sources, and strong magnetic fields.
3. Package Contents
Please check that all items listed below are included in your package:
- Trexonic Main Turntable Unit
- Wired Shelf Speakers (2 units)
- Remote Control
- Instruction Manual (this document)
- Power Adapter
4. Product Overview
Main Unit and Speakers
The Trexonic audio system features a central unit housing the turntable, CD player, FM radio, and control panel, flanked by two wired shelf speakers for stereo sound output.

Figure 4.1: The Trexonic 3-Speed Turntable system, showing the main unit with the lid open, a record on the platter, and two wired shelf speakers positioned on either side. The front panel features a display, control buttons, and input ports.

Figure 4.2: The Trexonic Turntable main unit placed within an entertainment center, demonstrating its compact size and how it can be integrated into a home audio setup. The speakers are not visible in this specific view but would typically be placed nearby.
Front Panel Controls and Indicators
- LCD Display with Blue Backlight: Shows current mode, track information, and radio frequency.
- Function/Mode Button: Selects between Turntable, CD, FM Radio, Bluetooth, USB, SD, and AUX modes.
- Power/Volume Knob: Turns the unit on/off and adjusts volume.
- Play/Pause Button: Controls playback for CD, USB, SD, and Bluetooth.
- Skip/Tune Buttons: Navigates tracks or tunes radio frequencies.
- Record Button: Initiates recording to USB/SD.
- USB Port: For USB flash drives.
- SD Card Slot: For SD memory cards.
- 3.5mm Headphone Jack: For private listening.
- 3.5mm AUX Input: Connect external audio devices.
Rear Panel Connections
- Speaker Output Terminals: Connect the wired shelf speakers.
- RCA Line-out: Connect to an external amplifier or powered speakers.
- FM Antenna: For radio reception.
- DC Power Input: Connect the power adapter.
5. Setup
5.1 Speaker Connection
- Locate the speaker output terminals on the rear of the main unit.
- Connect the speaker wires from the left speaker to the 'L' terminals and the right speaker to the 'R' terminals. Ensure correct polarity (red to red, black to black).
5.2 Power Connection
- Insert the DC plug of the power adapter into the DC power input jack on the rear of the main unit.
- Plug the power adapter into a standard wall outlet.
5.3 Initial Power On
- Turn the Power/Volume knob clockwise to power on the unit. The LCD display will illuminate.
- Adjust the volume to a low level before playing any audio.
6. Operating Instructions
6.1 Turntable Operation
- Press the Function/Mode button to select 'PHONO' mode.
- Lift the turntable lid.
- Place a vinyl record on the platter.
- Select the appropriate speed (33, 45, or 78 RPM) using the speed selector switch. For 45 RPM records, place the included adapter on the spindle.
- Release the tone arm from its rest and gently place the stylus on the desired groove of the record.
- The record will begin to play. Adjust the volume as needed.
- At the end of the record, manually return the tone arm to its rest.
6.2 CD Player Operation
- Press the Function/Mode button to select 'CD' mode.
- Open the CD tray by pressing the Eject button.
- Place a CD with the label side facing up into the tray.
- Close the CD tray. The unit will read the CD, and the track number will appear on the display.
- Press the Play/Pause button to start playback.
- Use the Skip buttons to navigate between tracks.
6.3 FM Radio Operation
- Press the Function/Mode button to select 'FM' mode.
- Extend the FM antenna for better reception.
- Use the Tune buttons to manually scan for radio stations. Press and hold to auto-scan for the next available station.
- The frequency will be displayed on the LCD.
6.4 Bluetooth Operation
- Press the Function/Mode button to select 'BT' (Bluetooth) mode. The display will show 'BT' and flash, indicating it is ready for pairing.
- Enable Bluetooth on your external device (e.g., smartphone, tablet).
- Search for 'Trexonic' in your device's Bluetooth list and select it to pair.
- Once paired, the display will stop flashing. You can now play audio from your device through the Trexonic system.
- Control playback (play/pause, skip) either from your device or using the unit's controls.
6.5 USB/SD Playback
- Insert a USB flash drive into the USB port or an SD card into the SD card slot.
- Press the Function/Mode button to select 'USB' or 'SD' mode. The unit will automatically detect and begin playing compatible audio files (MP3).
- Use the Play/Pause and Skip buttons to control playback.
6.6 Recording to USB/SD (Encoding)
The unit supports direct encoding from Turntable, CD, AUX Input, and FM Radio to MP3 format on a USB drive or SD card.
- Insert a USB flash drive or SD card into the respective slot. Ensure it has sufficient free space.
- Select the desired source mode (PHONO, CD, FM, or AUX).
- Start playback of the source audio (e.g., begin playing a record, CD, or tune to an FM station).
- Press the Record button. The display will indicate recording is in progress.
- To stop recording, press the Record button again. The recorded file will be saved as an MP3 on the USB drive or SD card.
7. Maintenance
7.1 Cleaning the Unit
- Always unplug the unit from the power outlet before cleaning.
- Use a soft, dry cloth to wipe the exterior surfaces.
- Do not use abrasive cleaners, waxes, or solvents.
7.2 Stylus Care
- Handle the stylus with care to avoid bending or breaking it.
- Clean the stylus periodically with a soft brush, brushing from back to front.
- Replace the stylus if you notice a decrease in sound quality or visible damage.
7.3 Record Care
- Keep records clean and free of dust. Use a record brush before each play.
- Store records vertically in their sleeves to prevent warping.
8. Troubleshooting
- No Power: Ensure the power adapter is securely connected to both the unit and a working wall outlet. Check if the Power/Volume knob is turned on.
- No Sound: Check speaker connections and ensure correct polarity. Adjust the volume. Ensure the correct input mode is selected. If using headphones, disconnect them to check speaker output.
- Turntable Not Spinning: Ensure the unit is in 'PHONO' mode. Check if the platter belt is properly seated (if applicable, refer to specific model diagram for belt drive).
- Poor Radio Reception: Extend and reposition the FM antenna. Try moving the unit to a different location.
- Bluetooth Pairing Issues: Ensure the unit is in 'BT' mode and flashing. Make sure Bluetooth is enabled on your external device and it is within range. Try unpairing and re-pairing the device.
- USB/SD Not Reading: Ensure the USB drive or SD card is inserted correctly. Check that the files are in a compatible format (MP3). Try a different USB drive or SD card.
9. Specifications
- Brand: Trexonic
- Model Name: TRX-28SP
- Maximum Rotational Speed: 78 RPM
- Included Components: Remote Control
- Special Feature: Direct USB and SD Encoding
- Material: Plastic
- Item Weight: 10.25 Pounds
- Style: Classic
- Color: Black
- Compatible Devices: Speaker
- Power Input: DC (refer to power adapter for specific voltage/current)
- Audio Output: Wired Shelf Speakers, RCA Line-out, 3.5mm Headphone Jack
- Input Sources: Turntable, CD, FM Radio, Bluetooth, USB, SD, 3.5mm AUX Input
10. Warranty and Support
For warranty information or technical support, please refer to the warranty card included with your product or contact Trexonic customer service through their official website or the contact information provided at the point of purchase. Please have your model number (TRX-28SP) and purchase details ready when contacting support.