862D+ SMD Rework Station Modifications

This repository contains documentation and resources for upgrading and modifying the 862D+ SMD rework station. The 862D+'s construction stands up to only very light use, but it's affordability makes it the choice of many amateur solderers making their first move from a stand-alone soldering pen to a rework station. However, being prone to failure, their maintenance and repair cost, quickly compensate for the low entry price.

Despite the 862D+'s practically disposable nature, it does have a clean appearance that makes it a good device for intermediate electronics afficionados to practice troubleshooting, repair, and refurbishing skills. This project aims to improve the hardware and software of this inexpensive, defunct device by replacing its more fragile and underpowered components with more fitting counterparts. The final goal of the project is to deliver a more functional, reliable, user-friendly, and long-lasting device for my electronics bench.

This draft README file serves as the framework for the introduction to that work.

Table of Contents

• About the 862D+
• Modifications
  • Hardware Upgrades
  • Software Updates
• Documentation
  • Original Schematic
  • Modified Schematic
  • Firmware
• Contributing
• License

About the 862D+

The 862D+ SMD hot air gun features both manual or automatic function modes. For repeated usage in a single work session, the manual adjustment can keep the hot air gun hot, and the automatic function, for less frequent use, saves energy by shutting down the device when resting on its magnetic support bracket. The user may adjust both the heating temperature and fan velocity of the gun.

The soldering iron has manual temperature control.

While the device used for this project includes no branding, the Yihua website (http://yihua-soldering.com/product-1-3-2-hot-air-rework-station-en/147663/) provides specifications for an identical device, as follows:

Rated Voltage AC 220V±10% 50Hz Machine Power 730W±10% (max.) The 300℃ Isothermal Power (PID Controlled Energy Saving) 250W ±10% Working Environment 040℃ Relative humidity < 80% Storage Temperature -2080℃ Relative humidity < 80% Machine Size 13.515.718.5cm Weight 4.5KG

                                            Hot air gun	               Soldering iron

Working Voltage AC 220V±10% 50Hz AC 26V±10% 50Hz Output Power 650W 75W Temperature Range 100℃480℃ 200℃480℃ Mode of Airflow Brushless fan --- Airflow 120L/min (max.) --- Temperature Stability ±15℃ (static) ±10℃ (static) Display LED (red/green) LED (red/green) Temperature Correction PID digital program proofreading PID digital program proofreading PID Temperature Cycle Fast 200ms Fast 200ms Heater Heating core ceramics heater Imported high-power heater Tip to Ground Impedance --- < 2Ω Tip Voltage to Ground --- < 2mV Standard Configuration

Machine: 1 set Specifications: 1pc Air Gun Handle: 1pc Nozzles: 4pcs (10mm, 8mm, 5mm, 13mm) IC Puller: 1pc Handle Frame: 1pc Iron Handle (including a heater and tips): 1pc Iron Holder: 1pc

Modifications

Hardware Upgrades

[Detailed list of hardware modifications with explanations and photos]

• Example: Replacement Hot Air Gun
• Example: Upgraded Temperature Sensor
• Example: Custom Control Panel
• ...

Software Updates

[List of software changes, if any]

• Example: Custom Firmware with improved temperature control algorithms
• ...

Documentation

Original Schematic

[Link or image of the original 862D+ schematic]

Modified Schematic

[Link or image of your modified schematic]

Firmware

[Link to the modified firmware source code (if applicable)]

Contributing

Contributions are welcome! Please feel free to submit pull requests, open issues, or share your own modifications.

License

[Choose an appropriate open-source license (e.g., MIT License, GNU GPL)]