1. Product Overview
The CELLSTAR CSD-790FHG is a high-performance dual-camera drive recorder designed to capture both front and rear views simultaneously. It features advanced recording capabilities and safety support functions to enhance your driving experience.
Key Features:
- Front and rear simultaneous recording with two cameras (main unit and separate camera).
- microSD maintenance-free function.
- Receives 76 satellites (supports Michibiki, Galileo, Glonass satellites) for high-precision positioning.
- Includes wrong-way driving warnings and high-speed road wrong-way driving caution areas.
- Night Vision Ver.2: Records clear images even in low light conditions such as at night or in tunnels.
- Parking Mode: Newly equipped with motion detection (requires optional accessory).
- Full HD Recording: Clearly captures road signs and license plates of vehicles ahead.
- HDR Image Synthesis: Reduces overexposure and underexposure even with sudden changes in brightness.
- Digital Zoom: Up to 4x digital zoom for clear confirmation of distant objects.
- Selectable recording quality and detailed custom settings for brightness and contrast.
- GPS Notification Function: Provides advance warnings for dangerous areas during driving.
- Voice Assist: Informs you of recording status and operation sounds.
- Speed or Clock Display: Screen can be switched to display speed or clock.
- Heat-resistant, durable glass lens for consistent image quality.
- Compatible with 12V/24V vehicles.
- Compatible with LED traffic lights.

Image 1: CELLSTAR CSD-790FHG Main Unit and Rear Camera. The main unit records the front view, while the separate camera records the rear view.
2. Package Contents
Before installation, please verify that all components are present in the package:

Image 2: Diagram illustrating the components included in the CSD-790FHG package.
- Drive Recorder Main Unit
- Separate Camera (for rear view)
- DC Cord (3-pole DC plug)
- Mount Base x2
- Camera Connection Cord
- Ball Joint (for dashboard) x2
- Double-sided Tape (for glass) x2
- 16GB microSD Card Class 10/SDHC compliant (with dedicated viewer software)
- microSD Card Adapter
- microSD Card Case
- Double-sided Tape (for dashboard) x2
- Cord Clip x5
- Degreasing Cleaner
- User Manual
3. Setup and Installation
3.1 Mounting the Main Unit and Rear Camera
The main unit is typically mounted on the front windshield, and the separate camera is mounted on the rear window. Use the provided mount bases and double-sided tape for secure attachment. Ensure the camera lenses have a clear view of the road.
- Clean the mounting surface with the degreasing cleaner.
- Attach the double-sided tape to the mount base.
- Securely attach the mount base to the desired location on the windshield/rear window.
- Attach the drive recorder main unit and separate camera to their respective mount bases.
3.2 Power Connection
Connect the DC cord to the drive recorder and the vehicle's cigarette lighter socket. The unit supports both 12V and 24V vehicles. The device will automatically start recording when the engine is turned ON and stop when the engine is turned OFF.
3.3 Connecting the Rear Camera
Use the camera connection cord to link the separate rear camera to the main drive recorder unit. Route the cable carefully to avoid interference with vehicle operations.
3.4 microSD Card Insertion
Insert the provided 16GB microSD card into the designated slot on the main unit. Ensure it is inserted correctly until it clicks into place.
4. Operating Instructions
4.1 Basic Operation
- Automatic Recording: The device automatically begins recording when the vehicle's engine is started and stops when the engine is turned off.
- Audio Recording: Audio can be recorded simultaneously with video. This setting can be adjusted in the menu.
- 3G Sensor: The built-in 3G sensor detects impacts and sudden movements, automatically saving critical footage to prevent overwriting. Sensitivity can be customized.
4.2 Display and Menu Navigation
The CSD-790FHG features a 2.4-inch touch panel for easy navigation. Use the touch screen to access settings and view recorded footage.
- Menu Access: Tap the 'MENU' icon on the screen to enter the settings menu.
- Display Modes: The screen can display live camera views, recorded footage, speed, or time. Switch between modes as needed.
- Digital Zoom: During live view or playback, use the digital zoom function (up to 4x) to magnify specific areas.
4.3 GPS Notification Function
The integrated GPS provides warnings for various road conditions and potential hazards.

Image 3: The CSD-790FHG display showing a GPS warning for a high-speed wrong-way driving caution area.
- The device will provide audible alerts and on-screen notifications for dangerous areas, such as wrong-way driving zones or accident-prone locations.
- GPS data is updated monthly for free via the 'MyCellstar' smartphone app or PC.
4.4 Parking Mode (Optional)
With an optional accessory, the parking mode can be activated. This feature utilizes motion detection to record events while the vehicle is parked, providing surveillance against potential incidents.
4.5 Manual Photo Capture
You can manually capture still images during recording by accessing the shooting function through the touch panel menu.
5. Maintenance
5.1 microSD Card Management
The CSD-790FHG features a microSD maintenance-free function, which optimizes the card's lifespan and reduces the need for frequent formatting. However, it is recommended to periodically check the card's health and back up important footage.
5.2 Cleaning
Gently wipe the camera lenses and display screen with a soft, dry cloth to remove dust or smudges. Avoid using abrasive cleaners or solvents.
6. Troubleshooting
This section addresses common issues you might encounter with your CELLSTAR CSD-790FHG drive recorder. For more detailed troubleshooting, please refer to the full user manual or contact customer support.
- Device not powering on: Ensure the DC cord is securely connected to both the drive recorder and the vehicle's power outlet. Check the vehicle's fuse for the power outlet.
- Recording not starting: Verify that the microSD card is correctly inserted and has sufficient free space. The device should start recording automatically when the engine is on.
- Poor video quality: Clean the camera lenses. Ensure the HDR and Night Vision settings are appropriate for the lighting conditions. Check the selected recording resolution in the settings.
- GPS not acquiring signal: Ensure the device has a clear view of the sky. Avoid mounting locations that obstruct GPS signal reception. Update GPS data regularly.
- Touch screen unresponsive: Try restarting the device by disconnecting and reconnecting the power. If the issue persists, contact support.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | CELLSTAR |
| Model Name | CSD-790FHG |
| Product Dimensions (Main Unit) | 92(W) x 23.5(D) x 82(H) mm |
| Product Dimensions (Separate Camera) | 35(W) x 18(D) x 65(H) mm |
| Item Weight | 100 g |
| Video Capture Resolution | Front: 2 Million Pixels (FullHD), Rear: 1 Million Pixels (HD) |
| Display | 2.4 inch Touch Panel |
| Connectivity Technology | DC |
| Compatible Vehicle Type | 12V/24V (Parking) |
| Special Features | Motion Detection, Surveillance |
| Included Components | DC Cigarette Cord, 16GB microSD Card, Mount Base, User Manual, Double-sided Tape, Degreasing Cleaner |
| Mounting Type | Adhesive Mount |
| Control Method | Touch |

Image 4: Dimensions of the CELLSTAR CSD-790FHG main unit and separate camera.
8. Warranty Information
The CELLSTAR CSD-790FHG drive recorder comes with a 3-year manufacturer's warranty. Please retain your proof of purchase for warranty claims. For details regarding warranty terms and conditions, refer to the official CELLSTAR website or the warranty card included in your package.
9. Support and Updates
For further assistance, product information, or to download the latest GPS data updates, please refer to the following resources:
- GPS Data Updates: GPS data can be updated monthly for free. Download the latest data using the smartphone app "MyCellstar" or from the official CELLSTAR website, then transfer it to your device via microSD card.
- Official Support Website: For additional support and information, you may visit the official support page: JDRC Support.

Image 5: Overview of CELLSTAR CSD-790FHG features, including GPS notification and support information.




