1. Киришүү
The OBDPEAK TF790 3-in-1 Type-C Buck Line is a dedicated hardwiring kit designed to provide continuous power to your car DVR (Dash Cam) for 24-hour parking monitoring. It also integrates AUX and USB ports for enhanced connectivity. This manual provides essential information for the safe installation, operation, and maintenance of your buck line.
2. Продукциянын өзгөчөлүктөрү
- 24 саат бою унаа токтотуучу жайды көзөмөлдөө: Connects your dash cam directly to the vehicle's battery, enabling continuous power supply for parking monitoring even when the ignition is off.
- Тtage Reduction and Stabilization: Safely converts 12V or 24V vehicle power to a stable 5V output for your dash camera.
- Integrated AUX Interface: Provides an AUX female port for connecting to your car's audio system.
- USB Port for Android Auto: Includes a USB port for connecting Android phones, supporting Android Auto functionality.
- Low Voltage Коргоо: Automatically cuts power to prevent draining your car battery (at 11.6V ± 0.2V).
- Кеңири шайкештик: Specifically designed for OBDPEAK K2, K2 Pro, K4, and other Type-C interface dash cams.
3. Пакеттин мазмуну
- 1 x OBDPEAK TF790 3A Buck Line
4. Техникалык шарттар
| Спецификация | Нарк |
|---|---|
| Модель аты | TF790 (3A Buck Line) |
| Киргизүү көлөмүtage | DC 12V-30V |
| Output Voltage | DC 5V |
| Output Current | 3000 мА (3А) |
| Low Voltage Коргоо | 11.6V ± 0.2V |
| Материал | ABS Plastic and Metal |
| Иштөө температурасы | -20 градустан 70 градуска чейин |
| Күтүү режиминде энергия керектөө | 0.01W төмөн |
| Interface Type | Type-C (output) |
| Таза Салмак | 0.085 кг (85г) |
| Элементтин өлчөмү | 10 x 5 x 3 см |
| Өзгөчөлүктөр | Transformer For Car DVRs |
5. Коопсуздук маалыматы
- Кандайдыр бир электрдик жумуштарды аткаруудан мурун дайыма унаанын аккумуляторун ажыратыңыз.
- Кыска туташуунун алдын алуу үчүн бардык туташуулардын коопсуз жана туура изоляцияланганын текшериңиз.
- If you are unsure about the installation process, consult a qualified automotive electrician.
- Do not expose the buck line to extreme moisture or temperatures outside the specified operating range.
- Use appropriate fuse taps (not included) to connect to the vehicle's fuse box, ensuring the correct fuse rating is maintained.
6. Орнотуу
6.1 Электр өткөргүч схемасы
Refer to the diagram below for proper wiring connections. The buck line features three input wires and multiple output interfaces.

- Кызыл зым (BAT+): Connect to a constant 12V-30V power source in your vehicle's fuse box (e.g., a fuse that is always live, even when the ignition is off). This provides power for 24-hour parking monitoring.
- Сары зым (ACC): Connect to an ignition-switched 12V-30V power source in your vehicle's fuse box (e.g., a fuse that is only live when the ignition is on). This signals the dash cam to switch between driving and parking modes.
- Black Wire (GND-): Connect to a metal part of the vehicle chassis for a secure ground connection.
6.2 Орнотуу кадамдары
- Унааны даярдоо: Ensure the vehicle's engine is off and the battery is disconnected for safety.
- Сактандыргыч кутучасын аныктоо: Locate your vehicle's fuse box (usually under the dashboard or in the engine bay).
- Кубат булактарын аныктоо: Using a circuit tester, identify a fuse that provides constant power (for the Red BAT+ wire) and a fuse that provides ignition-swswitched power (for the Yellow ACC wire).
- Зымдарды туташтыруу: Use appropriate fuse taps (not supplied) to connect the Red (BAT+) and Yellow (ACC) wires to the identified fuse slots. Insert the original fuses into the fuse taps, along with new fuses for the buck line if required.
- Жерге туташуу: Securely connect the Black (GND-) wire to a clean, unpainted metal bolt or screw on the vehicle's chassis.
- Маршруттук кабелдер: Carefully route the Type-C output cable from the buck line to your dash cam, concealing it along the vehicle's trim or headliner for a neat installation.
- Dash Camга туташуу: Plug the Type-C connector into your compatible dash cam.
- Кошумча туташуулар: If desired, connect your AUX cable to the buck line's AUX port and to your car's audio input. Connect your Android phone to the USB port for Android Auto functionality.
- Reconnect Battery & Test: Reconnect the vehicle's battery. Start the engine to verify the dash cam powers on and off with the ignition. Turn off the engine and remove the key to confirm the dash cam enters parking monitoring mode.

7. Иштөө нускамалары
7.1 24 сааттык паркинг мониторинги
Once correctly installed, the TF790 buck line enables your dash cam to operate in parking monitoring mode. When the vehicle's ignition is turned off, the buck line continues to supply power from the constant battery source. If the vehicle battery voltage drops below 11.6V ± 0.2V, the buck line will automatically cut power to the dash cam to prevent complete battery discharge, ensuring your vehicle can still start.

7.2 AUX and USB Functionality
- AUX порту: Connect an audio cable from this port to your car's AUX input to transmit audio from a connected device (e.g., your dash cam if it supports audio output via AUX) to your car's speakers.
- USB порт: This port provides power and data connectivity for compatible Android devices, allowing for features like Android Auto when connected to a compatible head unit or display.
8. Кыйынчылыктарды
- Dash Cam күйбөйт:
• Check all three wire connections (Red BAT+, Yellow ACC, Black GND-) for proper contact and security.
• Verify that the fuses in the fuse taps are intact and not blown.
• Ensure the Type-C connector is fully inserted into the dash cam. - Dash Cam Does Not Enter/Exit Parking Mode (Stays On/Off):
• This usually indicates an issue with the Yellow ACC wire connection. Ensure it is connected to a fuse that is only live when the ignition is on and turns off when the ignition is off. - AUX Audio Not Working:
• Ensure the AUX cable is securely connected to both the buck line and your car's audio input.
• Verify your car's audio system is set to the correct AUX input source. - USB Port Not Functioning (Charging/Android Auto):
• Check the USB cable for damage and ensure it's properly connected.
• Confirm your Android device and car's head unit are compatible with Android Auto via USB. - Vehicle Battery Drains Quickly:
• While the buck line has low voltage protection, ensure your vehicle's battery is in good health. An old or weak battery may still drain faster with continuous parking monitoring.
9. Техникалык тейлөө
- Бардык зымдардын туташууларынын бекем жана дат баспагандыгын текшерүү үчүн мезгил-мезгили менен текшерип туруңуз.
- Check the fuses in the fuse taps annually or if any power issues arise.
- Keep the buck line module clean and free from dust or debris.
10. Колдонуучунун кеңештери
- For optimal parking monitoring performance, ensure your vehicle's battery is in good condition. A healthy battery is crucial for extended surveillance times.
- If your vehicle's 12V accessory socket (cigarette lighter) is always powered, this hardwire kit is essential for proper ignition-switched operation of your dash cam, allowing it to automatically switch between driving and parking modes.
- Consider professional installation for complex wiring scenarios or if you are uncomfortable working with vehicle electrical systems to ensure safety and correct functionality.
11. Кепилдик жана колдоо
For warranty information, technical support, or any questions regarding your OBDPEAK TF790 3-in-1 Type-C Buck Line, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.





