Introduction
Thank you for purchasing the SWM D3400 Car MP3 Player. This manual provides detailed instructions for installation, operation, and troubleshooting to ensure optimal performance and user experience. Please read this manual thoroughly before using the product.
Safety Information
Always observe the following precautions to avoid electric shock, fire, or other injuries:
- Do not attempt to disassemble or modify the unit.
- Ensure proper wiring connections to prevent short circuits or damage.
- Keep the unit away from water and excessive moisture.
- Do not operate the unit in extreme temperatures.
- Always ensure the vehicle is off before performing any installation or wiring.
Product Overview
Key Features
- Integrated Phone Stand: Securely holds your smartphone for navigation or media.
- Bluetooth Connectivity: For hands-free calls and wireless music streaming.
- Multiple Media Inputs: USB, Type-C, TF card, AUX.
- FM Radio: Enjoy your favorite radio stations.
- Voice Assistant: Supports Siri and Google Assistant.
- 7-Color Backlight: Customizable button illumination.
- Audio Recording: Record radio, Bluetooth, or AUX audio to storage.
- Wiring Protection: Designed with safety in mind.
Panel Introduction
Refer to the image above for a visual guide to the front panel buttons and rear connections.
- Front Panel: Multifunction knob (VOL/SEL), Power on/off, Mode, Mute, Previous/Next track, Answer/Hang up, Clock setting, Remote control signal receiver, Type-C charging, USB port, TF card slot, AUX input, Microphone input, Number buttons (1-6).
- Rear Panel: ISO standard plug, Power/speaker output, Audio output (RCA), Radio antenna input.
Product Dimensions
- Installation Size: 178x50mm (7.01x1.97 inches)
- Shell Size: 174x69mm (6.85x2.72 inches)
Accessories
The product package typically includes:
- SWM D3400 Car MP3 Player Unit
- Remote Control
- Power Wiring Harness (ISO or 12P type)
- General Operating Manual
- Disassembly Keys (not explicitly shown but implied for installation)
Specifications
| Feature | Specification |
|---|---|
| Power Supply Voltage | 12~14.4V DC, Negative Ground |
| Max Current Consumption | 15A |
| Max Output Power | 4X60W |
| Radio Response Bandwidth | 87.5-108MHz |
| Item Weight | 0.5kg |
| Item Size | 188x58x60mm |
| Resolution | NO |
| OSD Language | English |
| Voltage | 12 V |
| Placement | In-Dash |
| Display Size | None |
| Material | ABS+Metal |
| Certification | CE, FCC |
| Special Features | Radio Tuner |
Installation
Before Installation
When you receive the product, please do not install it directly into the car. Due to the long journey, the product may be affected. Please test the machine before installing.
Test Method: Connect the red and yellow wires of the power cord together and connect them to the positive pole of a 12V DC car battery. Connect the black wire of the power cord to the negative pole of the battery. Wait for 10 seconds after connecting, then press each button on the machine to check if it powers on normally. If it turns on, it means there is no problem, and you can proceed with installation. If it does not start normally, please re-confirm that you followed the test steps. If the problem persists, contact support.
Wiring Diagram (Optional "ISO or 12P")
The ISO and 12P plug wiring colors are standard. Ensure correct connections:
- Red: ACC (Ignition Switch +12V)
- Yellow: B+ (Power Supply +12V)
- Black: GND (Ground wire B-)
- Blue: ANT (Auto Antenna Power)
- Speaker Wires: White/White-Black (Front Left), Gray/Gray-Black (Front Right), Green/Green-Black (Rear Left), Purple/Purple-Black (Rear Right).
RCA Introduction (Optional 2 types)
The unit supports two types of RCA connections:
- Style 1 (4-hole RCA): Provides Left and Right channel audio output for external amplifiers and a Radio antenna connection.
- Style 2 (6-hole RCA): Provides Left and Right channel audio output, Subwoofer outputs (Green -1, Green -2), and a 3.5mm MIC input hole, along with a Radio antenna connection.
Refer to the rear panel diagram in the Product Overview section for visual reference.
Operation
Function Key Introduction
| Key/Function | Description |
|---|---|
| POWER | Click to turn on, long press to turn off. |
| MOD | Mode switch (e.g., RADIO-USB-SD-AUX-BT). |
| MUTE | Silence all voices / End call. |
| 1/►► | Select track 01 or radio 01; Play/pause function / Answer call. |
| 2/INT | Select track 02 or radio 02; Browse playback function. |
| 3/RPT | Select track 03 or radio 03; Loop playback function. |
| 4/RDM | Select track 04 or radio 04; Shuffle function. |
| 5/-10/DIR- | Select track 05 or radio 05; Track-10; folder selection. |
| 6/+10/DIR+ | Select track 06 or radio 06; Track+10; folder selection. |
| ◀◀ | Previous track or previous radio station. |
| ►► | Next track or next radio station. |
| CLK/DISP | Clock display function; set the clock. |
| BAND | Band switching (e.g., FM1-FM2-FM3). |
| VOL/SEL | Volume adjustment; Select function. |
| AMS/APS | Automatically search and store radio stations. |
| RST/RES | Restore to factory settings. |
| EQ | Sound effect settings (e.g., POP-ROCK-CLASSIC-JAZZ). |
| LOUD | Loudness on/off. |
| Voice Assistant Icon | Wake up the voice assistant. |
Function Hole Introduction
- MIC: Microphone pickup hole.
- IR: Remote control signal receiving window.
- USB: USB storage device socket.
- AUX: 3.5MM External audio input.
- TF/SD: SD or Micro SD card storage device slot.
- USB Charging Port: For charging devices.
Bluetooth (BT) Introduction
Device Name: "SWL-BT"
PIN Number: "0000" (if needed)
BT Connection Method: When the machine is powered on, turn on the BT function on your phone. Search for devices and click on "SWL-BT" in the list to connect.
7 Color Light Settings (Optional)
Press and hold the VOL button until "AUTO" appears. Rotate the VOL button to select a color, then press VOL again to confirm. You can choose automatic color change or select one of 7 colors: red, green, blue, cyan, purple, yellow, white.
Voice Assistant (Optional)
When connected to your mobile phone via Bluetooth, long press the voice assistant button (usually the microphone icon) to wake up "Siri" or "OK Google".
Audio Source Recording (Optional)
When a storage device (USB or SD card) is inserted, long press the VOL button to enter audio recording mode. You can record radio, Bluetooth music, and AUX audio to the storage device.
DAB Digital Radio (Optional)
This unit supports DAB (Digital Audio Broadcasting), which provides CD-quality sound, an advancement over traditional AM/FM analog broadcasting.
Locate and Look for Car (APP Optional)
Some models support a mobile application to locate your car or control the unit remotely. Download the corresponding APP based on your mobile phone model.
APP1 (Car Audio):
- Press Mode on the Music System to go to BT mode if your mobile is not connected.
- Switch ON Bluetooth on your mobile device.
- Open the [Car Audio] APP after installation. It will automatically search for Bluetooth devices.
- Select [Car Audio] in the list.
- You can now use the APP as a remote control to operate the Music System.
APP2 (iCar Link / SWT Car Link):
For iPhone, scan the left QR code to download [SWT Car Link]. For Android, scan the right QR code to download [iCar Link] APK.
APP3 (Remote Control APP):
Download the corresponding APP based on your mobile model. This APP allows remote control functionality.
Troubleshooting
1) Cannot boot normally
- Wiring Check: Ensure the yellow wire is connected to positive, red to key control, and black to negative. Incorrect or insufficient connections will prevent booting.
- Car Line Compatibility: Original car wiring colors may not match. Connecting incorrectly can damage the unit.
- Original Car Plug: Do not plug the original car plug directly into the new unit; it may not work or cause damage.
- Fuse Check: If wires are connected correctly but it doesn't boot, check the fuse on the yellow line. If the fuse is broken, replace it. If not, twist the yellow and red wires together, turn the key, and press the power button to test.
- Short Circuit Protection: If fuses repeatedly blow, it indicates a short circuit in the unit's protection circuit. Seek professional repair.
2) Automatic shut-down
- Wiring Error: If the blue (automatic antenna power supply) cable is connected to the unit's power cable, it will automatically shut down. Correct the wiring.
- Unstable Voltage: Test with a stable 12V-5A power supply. If it still shuts down, the unit is faulty. If not, replace your power supply.
3) There is noise
- Speaker Power: If the original speaker power is too low, increasing the unit's volume will cause noise. Keep the volume moderate.
- Speaker Cable Grounded: Connect the iron speaker cable directly to the unit's speaker cable.
4) Remote control cannot be used
Test Method: Use your phone camera to view the remote control's light while pressing buttons. If it doesn't light up, replace the battery. If it lights up, the remote control is working.
5) Settings cannot be saved (no memory)
- The yellow and red lines are connected together (yellow to positive, red to key control).
- The yellow and red wires are reversed; simply swap their positions.
6) Bluetooth not working
Ensure the unit is on, search for "SWL-BT" on your phone's Bluetooth, and connect. After connecting, you should be able to make/receive calls and play music.
7) The product emits smoke
Replace the FUSE. If the problem persists, the internal circuit is burned. After-sales service is required.
8) The sound cannot be adjusted
- Reset the unit or unplug and replug the power cord.
- If the volume knob is broken, it needs to be replaced.
9) USB devices cannot be played
Format the USB flash drive to FAT32. Re-download one or two songs and try again. If it still doesn't work, replace the USB flash drive.
10) FM does not receive the radio station
- Ensure the antenna plug is fully inserted and not disconnected.
- Use the AS button to automatically search for stations, or use the previous/next buttons.
- If issues persist, unplug the antenna plug and insert a screwdriver or metal strip in its place to act as a temporary antenna for testing.
11) No sound right after installation
This usually indicates a wiring error or a short-circuited car speaker wire. Check if speaker cables are short-circuited and connected. Verify the number of speaker cables; if only 2 cables are present for a 4-speaker system, re-route the original car line. Each speaker requires 2 wires, so 2 speakers need 4 wires.
12) No sound after a while
Disconnect all speaker cables from the unit. Connect an external speaker to the gray and purple wires of the unit's tail line. If there is sound, the car's speaker line is short-circuited or the speaker is damaged. If there is no sound, the unit is broken.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the unit. Do not use abrasive cleaners or solvents.
- Storage: If storing the unit for an extended period, ensure it is in a dry, cool place away from direct sunlight.
- General Care: Avoid strong impacts or dropping the unit.
User Tips
- Phone Stand Fit: When using the integrated phone stand, ensure your phone fits securely and does not obstruct the unit's installation depth in your vehicle's dashboard. Some users inquire about the stand's depth when fully inserted.
- Bluetooth Pairing: If you have trouble pairing, ensure no other devices are connected to the unit and try restarting both the unit and your phone's Bluetooth.
- USB Playback: Always format USB drives to FAT32 for best compatibility.
Warranty and Support
For any issues not covered in this manual, or for warranty claims, please contact the seller or authorized service center. Keep your purchase receipt as proof of purchase.
Tips: If the device is updated, the functions are subject to change without prior notice.