This manual introduces the use of SD series switch power supply modules of Shenhua Electronics, including installation methods, use precautions, etc.
The SD-5V series switch power supply module is a patented product of Shenhua Electronics that simplifies repair of flyback‑type parallel switch power supplies, reducing service time from hours to minutes. The manual describes the required conditions for installation, such as a functional original power switch and transformer.
Installation involves connecting four color‑coded wires (red, black, yellow, blue) to the original power switch terminals and secondary circuit as detailed in the wiring diagram. Output voltage is set with an adjustment screw (clockwise increases voltage) and the module includes overload protection. Technical specifications such as input voltage range, maximum power, and supported output voltages are listed, and contact information for Shenhua Electronics is provided. This manual is written in Chinese.
| Input Voltage | 120V‑280V, 50/60 Hz |
|---|---|
| Maximum Power | 2 W – 100 W |
| Supported Output Voltages | 5 V, 9 V, 12 V, 18 V, 24 V, 36 V, 48 V, 60 V, 80 V, 90 V |
Turn the voltage‑adjustment screw clockwise to raise the output voltage; turning it counter‑clockwise lowers the voltage.
The module accepts an input voltage of 120 V to 280 V at 50 Hz or 60 Hz.