1. Product Overview
The Fookoo DY704 is a high-definition wired backup camera system designed to enhance visibility and safety for large vehicles such as trucks, trailers, RVs, tractors, 5th wheels, and buses. It features a 7-inch split screen monitor, allowing simultaneous viewing from multiple cameras. The cameras are IP69 waterproof, ensuring durability in various weather conditions, and the system supports video recording and displays adjustable parking lines.

Image 1.1: The 7-inch monitor showcasing its 1080P Full HD resolution, split screen functionality, and auto-dimming feature.
2. Package Contents
Verify that all components are present in the package before beginning installation.

Image 2.1: Illustration of all items included in the Fookoo DY704 system package.
- 7-inch HD Monitor
- Wired Cameras (Quantity may vary based on specific kit, typically 2 or 4)
- Video Cables (Length may vary)
- Power Cord
- Monitor Mounting Brackets (Paste and Fixed)
- Remote Control
- Sunshade for Monitor
- Installation Kits (Screws, tools, etc.)
3. Features
- 1080P Full HD Resolution: Provides clear and detailed images.
- 7-inch TFT Display: Offers a large viewing area.
- Split Screen Function: Allows simultaneous display of multiple camera feeds.
- Auto Dimming: Adjusts screen brightness automatically for optimal viewing.
- IP69 Waterproof Cameras: Designed to withstand harsh weather conditions.
- Built-in CCD Image Sensor: Delivers brilliant images and minimizes color cast.
- Video Recording: Supports circular video recording, overwriting old footage when memory is full.
- Parking Lines: Adjustable guidelines for precise maneuvering.
- Night Vision: Enhanced visibility in low-light conditions.

Image 3.1: Detail of the high-quality camera with glass lenses, highlighting its weather resistance.

Image 3.2: The monitor demonstrating circular video recording functionality.
4. Setup and Installation
This system is designed for wired installation, providing a stable and reliable signal without interference. It is suitable for various large vehicles, including RVs and towed trailers, and can be easily connected and disconnected.
4.1. Wiring Diagram

Image 4.1: Wiring diagram for connecting the system to an RV and towing vehicle.
4.2. General Installation Steps
- Mount the Monitor: Choose a suitable location on your dashboard or windshield for the 7-inch monitor using either the paste bracket or fixed bracket. Ensure the monitor does not obstruct your view.
- Mount the Cameras: Install the cameras at desired locations (e.g., rear, sides of the vehicle/trailer). Ensure they have a clear view and are securely fastened.
- Connect Wiring: Run the video cables from each camera to the monitor. Connect the power cord to a suitable power source (e.g., 12V/24V DC). For specific trigger functions (e.g., reverse gear activation), connect the trigger wires as per your vehicle's wiring diagram.
- Test the System: Power on the system and verify that all cameras are displaying correctly on the monitor. Adjust camera angles and monitor settings as needed.
For detailed installation options and specific wiring instructions, refer to the comprehensive installation guide provided with your product.
5. Operating Instructions
5.1. Monitor Controls
The monitor features several buttons for control, typically including POWER, MENU, CH (Channel), and SEL (Select). A remote control is also provided for convenient operation.
- POWER: Turns the monitor on or off.
- MENU: Accesses the on-screen display (OSD) menu for settings adjustments.
- CH (Channel): Switches between individual camera views or split-screen modes.
- SEL (Select): Confirms selections within the OSD menu.
5.2. Split Screen Functionality
Use the CH button or remote control to cycle through different display modes, including single camera views and various split-screen configurations (e.g., 2-way, 3-way, 4-way split).
5.3. Video Recording
The system supports continuous recording. When the memory card (not included) is full, the system will automatically overwrite the oldest footage. Ensure a compatible SD card is inserted for recording functionality.
5.4. Parking Lines
Parking lines are displayed on the screen to assist with backing up. These lines can typically be adjusted or toggled on/off through the monitor's menu settings.

Image 5.1: Monitor view demonstrating parking assist lines.
6. Maintenance
- Camera Lenses: Regularly clean camera lenses with a soft, damp cloth to ensure clear image quality. Avoid abrasive cleaners.
- Monitor Screen: Wipe the monitor screen with a soft, dry cloth. Do not use harsh chemicals.
- Cable Connections: Periodically check all cable connections for tightness and signs of wear or corrosion. Ensure waterproof connections are sealed properly.
- Software Updates: Check the manufacturer's website for any available firmware updates for your system.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No image on monitor | No power to monitor or camera; Loose video cable connection; Faulty camera/monitor. | Check power connections to both monitor and cameras. Ensure all video cables are securely connected. Test with a known working component if possible. |
| Image flickering or distorted | Loose video cable connection; Power fluctuations; Electromagnetic interference. | Secure all video cable connections. Ensure stable power supply. Reroute cables away from strong electrical sources if interference is suspected. |
| Recording not working | No SD card inserted; SD card full or corrupted; Incorrect recording settings. | Insert a compatible SD card. Format the SD card via the monitor menu. Check recording settings in the OSD menu. |
| Night vision unclear | Dirty camera lens; Insufficient ambient light for IR sensors. | Clean the camera lens. Ensure no obstructions are blocking the camera's view or IR illuminators. |
8. Specifications
| Feature | Detail |
|---|---|
| Screen Size | 7 Inches |
| Display Technology | LCD |
| Optical Sensor Technology | CCD |
| Real Angle of View | 149 Degrees |
| Voltage | 36 Volts (Max) |
| Installation Type | Dashboard Mount, Surface Mount |
| Item Weight | 8.91 pounds |
| ASIN | B08SW8LS3M |
| UPC | 707995963883 |
9. Warranty and Support
Fookoo offers a 36-month full warranty for this product, covering manufacturing defects and malfunctions under normal use. Additionally, lifetime technical support is provided to assist with any installation, operation, or troubleshooting queries you may have.
For warranty claims or technical assistance, please contact Fookoo customer service through the contact information provided in your product packaging or on the official Fookoo website.
10. Product Video
Video 10.1: An official Fookoo video demonstrating the features and functionality of the HD Backup Camera System with a 7-inch monitor.
