1. Introduction
This manual provides detailed instructions for the assembly, operation, and maintenance of your TKXEC DIY BOX Shell DC DC Buck Boost Converter CC CV Power Module. This versatile module functions as an adjustable regulated laboratory power supply with constant current (CC) and constant voltage (CV) capabilities, and includes a full protocol fast charging board for mobile devices. It is designed for users who enjoy DIY projects and require a flexible power solution.
2. Product Overview
The TKXEC DIY BOX Shell is a compact and customizable power module designed for various applications, including powering electronic projects and fast charging mobile phones. It features a custom CNC shell for durability and ease of modification. The module integrates a digital display for real-time voltage and current monitoring, along with intuitive controls for adjustment.

Key features include:
- Custom CNC shell for robust construction and easy modification.
- Full protocol fast charging support for mobile phones.
- Compact and small size for portability and space-saving.
- One-button switch for power control.
- Stepless thermostat for precise temperature regulation (when used with compatible accessories like an electric soldering iron).
- Digital tube display showing voltage and current.

3. Specifications
| Feature | Specification |
|---|---|
| Brand Name | TKXEC |
| Model | XY3580 / DIY Box Shell |
| Current Type | DC |
| Phase | DC |
| Input Voltage (DC Plug) | DC 6.0V ~ 30V (Pure copper DC plug 5.5*2.1) |
| Input Voltage (Type-C) | PD protocol fast charging head input |
| Product Dimensions (Middle Frame) | 84mm (W) x 83mm (D) x 90mm (H) |
| Kit Weight (with fast charging board) | 400g |
| Fast Charging Protocols Supported | PD2.0, PD3.0 PPS, Qualcomm QC4+/QC3.0, Huawei SCP/FCP, OPPO VOOC, OnePlus DASH, Apple 2.4A, Samsung AFC, VIVO 9V2A twin engine, MediaTek PE2.0 |
| Output Fast Charge Protocol Display Codes | QC2, QC3, FCP, SCP, PD Fix (PD2), PPS (PD3), PE1.1 (PE1), PE2.1 (PE2) |
| Customization | Yes (custom shell, design front/rear panels) |


4. Package Contents
The DIY kit requires assembly. The package typically includes the following components:
- Front panel
- Middle frame
- Back panel
- 8 x Front and rear panel fixing screws
- Output banana socket
- Illuminated metal button
- Input power cord
- 1 x Fan
- 4 x Fan fixing screws and nuts
- Fast charging board


Bonus Gift: Some packages may include a 4MM banana plug to alligator clip cable, featuring 5A high current, 60cm cord length, and soft wire for good texture.

5. Assembly Instructions
The power module is provided as a DIY kit and requires assembly. Follow these general steps:
- Prepare Components: Unpack all components and ensure you have the front panel, middle frame, back panel, screws, fast charging board, output banana socket, illuminated button, input power cord, and fan.
- Install Fast Charging Board: Carefully place the fast charging board into the designated second card slot within the middle frame.
- Connect Wiring: Connect the output banana socket, illuminated metal button, input power cord, and fan to their respective interfaces on the fast charging board. Refer to the internal wiring diagram for correct connections.
- Assemble Shell: Secure the front and back panels to the middle frame using the provided 8 fixing screws.
- Install Fan: Attach the fan to its designated position using the 4 fixing screws and nuts.


6. Operation Instructions
Once assembled, operate the power module as follows:
6.1. Power On/Off
- Short Press: A short press of the ON/OFF button will turn the CNC power supply on or off.
- Long Press: Press and hold the ON/OFF button for 2 seconds to switch the power-on state. This allows you to configure whether the device powers on automatically (ON) or remains off (OFF) after a power cycle.
6.2. Display Information
The digital tube display provides real-time information:
- When no mobile phone is connected for charging: The TYPE-C port display shows the voltage, and the USB-A port display shows the temperature.
- When a mobile phone is connected for charging: Both the TYPE-C port and the USB-A port displays will cycle through showing voltage and current.

6.3. Fast Charging Protocols
The module supports a wide range of fast charging protocols. After activating the fast charge protocol, the digital tube will display the output fast charge protocol type:
- nOn: No agreement triggered.
- QC2: ---C2.0 (Qualcomm Quick Charge 2.0)
- QC3: ---C3.0 (Qualcomm Quick Charge 3.0)
- FCP: ---FCP (Huawei Fast Charge Protocol)
- SCP: ---SCP (Huawei SuperCharge Protocol)
- PD Fix: ---PD2 (Power Delivery 2.0)
- PPS: ---PD3 (Power Delivery 3.0 Programmable Power Supply)
- PE1.1: ---PE1 (MediaTek Pump Express 1.1)
- PE2.1: ---PE2 (MediaTek Pump Express 2.1)
High compatibility is ensured with the following fast charging protocols:
- PD2.0, PD3.0 PPS
- Qualcomm QC4+/QC3.0
- Huawei SCP/FCP
- OPPO VOOC
- OnePlus DASH
- Apple 2.4A
- Samsung AFC
- VIVO 9V2A twin engine
- MediaTek PE2.0
7. Maintenance
To ensure the longevity and optimal performance of your power module, follow these maintenance guidelines:
- Cleaning: Keep the device clean and free from dust. Use a soft, dry cloth for cleaning. Avoid liquid cleaners.
- Environment: Operate and store the module in a dry environment, away from moisture, extreme temperatures, and direct sunlight.
- Ventilation: Ensure the fan and ventilation openings are not obstructed to prevent overheating.
- Fuse Replacement: The module includes a 15A removable fuse. If the device stops functioning due to an overload, check and replace the fuse if necessary. Always use a fuse of the correct rating.
8. Troubleshooting
If you encounter issues with your power module, refer to the following common problems and solutions:
- Device does not power on:
- Ensure all internal connections are secure after assembly.
- Verify the input power source is within the specified DC 6.0V ~ 30V range.
- Check the 15A removable fuse for continuity. Replace if blown. - No output voltage/current:
- Confirm the device is powered on (short press ON/OFF button).
- Check all output connections for proper wiring.
- Ensure the current and voltage limits are set appropriately for your load. The module supports adjustable current and voltage. - Fast charging not working or displaying 'nOn':
- Ensure your mobile device and charging cable support one of the listed fast charging protocols.
- Try a different cable or device to rule out compatibility issues.
- Re-insert the mobile phone to trigger protocol negotiation. - Can the PSU be powered using the USB-C port?
- Yes, the Type-C port can be used as an input if connected to a PD protocol fast charging head. - Can I input 55 volts?
- No, the maximum input voltage for the DC plug is 30V. Inputting 55V will damage the device.
9. User Tips
Here are some helpful tips from other users and for maximizing your experience with the TKXEC power module:
- DIY Assembly: Remember that this product is a DIY kit. It requires careful assembly, and some users have noted that it's important to understand that you are receiving components to build the power supply, not a pre-assembled unit.
- External Power Source: The kit does not include an internal power source (like batteries). You will need an external DC power supply (6.0V-30V) to power the module.
- Versatile Use: This module is highly versatile. It can be used as a general-purpose laboratory power supply for various electronic projects, and its fast-charging capabilities make it excellent for testing or powering mobile devices.
- Soldering Iron Compatibility: The module is suitable for powering electric soldering irons, offering a convenient and adjustable power source for your soldering tasks.
- Expandability: The custom shell allows for easy modification. Consider designing your own front and rear panels for specialized applications or aesthetic preferences.
- Pairing with Loads: For advanced testing, the module can be effectively used with intelligent temperature control loads (e.g., XY-FZ35) to simulate various load conditions.

10. Warranty and Support
For any questions, technical assistance, or support regarding your TKXEC DIY BOX Shell DC DC Buck Boost Converter CC CV Power Module, please contact the seller or manufacturer directly. Keep your purchase records for any warranty claims. Specific warranty terms may vary by region and seller.