1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Meihua 9-inch Portable Android Multimedia Player. This device is designed to enhance your in-car entertainment and navigation experience with its advanced features, including GPS, DSP, CarPlay, and Android Auto. Please read this manual thoroughly before using the product to ensure proper function and safety.
2. Safety Information
- Always operate the device responsibly and in accordance with local traffic laws. Distracted driving can lead to accidents.
- Do not attempt to install or service the unit yourself if you are not qualified. Improper installation can cause damage to the device or your vehicle. Professional installation is highly recommended.
- Ensure all wiring connections are secure and properly insulated to prevent short circuits and electrical hazards.
- Keep the device away from water, moisture, and extreme temperatures.
- Clean the screen with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
3. Package Contents
Please check the contents of your package against the list below. Note that some items, like the AHD Rear Camera, may be optional depending on your purchase.
Figure 3.1: Device Dimensions and Package List
Included Accessories:
- Power Cable
- Radio Antenna
- Installation Tool
- Microphone
- GPS Antenna
- Canbus & Accessories (if applicable for your vehicle model)
- Original USB Cable
- USB Cable
- Camera Input Cable
- User Manual (this document)
- RCA Cable
- AHD Rear Camera (Optional)
4. Specifications
The Meihua 9-inch Portable Android Multimedia Player (Model SC7862S) features advanced hardware and software for a superior user experience.
Figure 4.1: Chip Specifications Overview
| Feature | Description |
|---|---|
| Product Name | SC7862S |
| CPU | 2.0GHZ (dual core ARM Cortex-A75, six core ARM Cortex-A55) |
| Operating System | Android 10 |
| Core | 8-Core |
| RAM/ROM Options | 4+64GB / 6+128GB / 8+128GB / 8+256GB |
| Screen Type | QLED / 2K, Capacitive Touch Screen |
| Resolution Options | 1280*720 / 2000*1200 |
| Bluetooth | BT5.0 |
| CarPlay/Android Auto | Wireless + Wired |
| Key Functions | GPS, Stereo, Handsfree, Amplifier, DSP, CarPlay, Mirror Link, Android Auto, Picture-in-Picture, Split Screen, File Manager, Car Steering Wheel Control |
| Connectivity | Bluetooth-enabled, Built-in GPS, MP3 / MP4 Players, Radio Tuner, Touch Screen, FM Transmitter, Backup Camera, Reversing Aid, USB, Built-in WiFi, 4G LTE |
| Placement | Dashboard (2DIN) |
| Warranty | 1 Year |
5. Setup
5.1 Installation
Due to the complexity of car electrical systems and the need for precise wiring, professional installation is strongly recommended. Incorrect installation can damage the unit or your vehicle's electrical system.
Refer to the wiring diagram below for connection details. Ensure the vehicle's power is disconnected before beginning installation.
Figure 5.1: 7862S Navigation Interface Wiring Diagram
Key Connections:
- Power Interface: Connect the main power cord to the vehicle's power supply.
- USB1/USB2 Interface: For connecting USB devices (e.g., flash drives, external storage).
- Radio Antenna: Connect your vehicle's radio antenna.
- GPS Antenna: Connect the provided GPS antenna for navigation functionality.
- 4G Antenna Interface: For 4G LTE connectivity.
- WiFi Antenna: For WiFi connectivity.
- Camera Input: For connecting a rear view camera or 360 camera system.
- RCA Input/Output: For external audio/video devices.
- Protocol Interface: For vehicle-specific CANBUS integration (if applicable).
Pin Definitions (Refer to diagram for exact numbering):
- GND: Power Ground
- BATT: Power Supply
- ACC: Accessory Power
- ILL: Small lamp detection
- BACK CON: Reverse detection
- AD1 IN / AD2 IN: Fangkong Testing Lines (for steering wheel controls)
- ANT+12V: Automatic antenna power
- OUT FR-/RL-/FR+/RL+/FL-/RR+/FL+/RR-: Speaker outputs (Front Right, Rear Left, Front Right, Rear Left, Front Left, Rear Right, Front Left, Rear Right)
- Fuse: Integrated fuse for protection.
Kind reminder: Do not plug or unplug any interface while the unit is powered on.
5.2 Initial Power-On
- After installation, ensure all connections are secure.
- Turn on your vehicle's ignition. The multimedia player should power on automatically.
- Follow any on-screen prompts for initial setup, such as language selection and time zone.
6. Operating Instructions
The Meihua multimedia player runs on Android 10, offering a familiar and intuitive interface. Navigate using the touch screen and physical buttons.
Video 6.1: User Interface Demonstration (Navigation, Video, Music, Radio)
6.1 Basic Navigation
- Touch Screen: Tap, swipe, and pinch to interact with apps and menus, similar to a smartphone.
- Home Button: Returns to the main home screen.
- Back Button: Navigates to the previous screen or closes the current app.
- Volume Controls: Adjust audio output.
- RST (Reset) Button: A small pinhole button for factory reset if needed (use with caution).
6.2 Radio Function
Access the 'Radio' app from the home screen. You can scan for stations, save presets, and switch between FM bands. The unit supports RDS (Radio Data System) for displaying station information.
6.3 Multimedia Playback
The player supports various audio and video formats. You can play media from USB drives, internal storage, or streaming apps when connected to the internet.
- Music: Use the 'Music' app to browse and play audio files.
- Video: Use the 'Video' app to watch video files.
6.4 GPS Navigation
The unit comes with built-in GPS and supports various navigation applications (e.g., Google Maps). Ensure the GPS antenna is properly installed for optimal signal reception.
Figure 6.2: CarPlay Navigation Interface
6.5 Bluetooth Connectivity (BT5.0)
Pair your smartphone via Bluetooth for hands-free calling and audio streaming.
- Go to 'Settings' > 'Bluetooth'.
- Enable Bluetooth on both the multimedia player and your phone.
- Search for available devices on your phone and select the multimedia player.
- Confirm the pairing code on both devices.
6.6 CarPlay and Android Auto
The unit supports both wireless and wired CarPlay/Android Auto, allowing seamless integration with your smartphone for navigation, music, messages, and more.
- Wired Connection: Connect your phone to the USB port using a compatible cable.
- Wireless Connection: Ensure Bluetooth and Wi-Fi are enabled on your phone and the head unit. Follow the on-screen prompts to connect wirelessly.
Figure 6.3: Android Auto Interface
6.7 DSP Sound Effect Adjustment
Utilize the built-in Digital Sound Processor (DSP) with 32-segment EQ regulation to customize your audio experience. Adjust bass, sound field, and apply 3D surround sound effects.
Figure 6.4: DSP Sound Adjustment Interface
6.8 Rear View Camera Support
The unit supports AHD (Analog High Definition) rear view cameras. When an optional AHD camera is connected and the vehicle is put into reverse gear, the display will automatically switch to the parking image, providing high-definition visual assistance.
Figure 6.5: AHD Rear View Display
6.9 4G LTE and WiFi Connectivity
The built-in 4G modules and WiFi support allow you to stay connected to fast cellular data networks. You can insert an external 4G SIM card or connect to your phone's hotspot for internet access.
Figure 6.6: 4G LTE and WiFi Support
6.10 Customizable UI Interface
The Android system allows for a personalized user interface. You can customize themes, app layouts, and widgets to suit your preferences.
Figure 6.7: Customizable UI Options
7. Maintenance
- Cleaning: Use a soft, lint-free cloth to clean the screen and exterior. Avoid harsh chemicals.
- Software Updates: Periodically check for system updates in the 'Settings' menu to ensure optimal performance and access to new features.
- Data Backup: Regularly back up important data if stored on the device's internal memory.
8. Troubleshooting
- No Power: Check all power connections. Ensure the vehicle's ignition is on. Verify the fuse is intact.
- No Sound: Check volume settings, speaker connections, and audio output settings. Ensure the amplifier (if external) is powered on.
- GPS Signal Lost: Ensure the GPS antenna is properly connected and has a clear view of the sky.
- Bluetooth Pairing Issues: Ensure Bluetooth is enabled on both devices and they are within range. Try restarting both devices.
- Touch Screen Unresponsive: Try restarting the unit. If the issue persists, use the RST (Reset) button.
- Harness Compatibility: The harness is designed to work with all public 9-inch or 10.1-inch universal car radios. If you are unsure about compatibility with a specific radio, provide the radio's wiring definition for confirmation.
9. User Tips
- For optimal performance, keep the system software updated.
- Utilize the DSP settings to fine-tune the audio to your personal preference and vehicle acoustics.
- Consider using a high-quality AHD rear camera for enhanced safety during reversing.
- Explore the customizable UI options to create a personalized and efficient dashboard experience.
10. Warranty and Support
This product comes with a 12-month warranty from the date of purchase.
For technical support, warranty claims, or any inquiries, please contact Meihua customer service:
- Whatsapp: +86 18163698923
- Email: 3157693835@qq.com
Please have your product model (SC7862S) and purchase details ready when contacting support.
