Detailed schematics and service manuals for repair are available on specialized electronics databases: S-360-12 Schematic PDF : You can view or download the technical circuit layout at Elektrotanya Alternative Schematics
| Protection | Circuit Method | Action | | :--- | :--- | :--- | | | Current sensing via a 0.01Ω/5W wirewound resistor on the negative output rail. Voltage across it is fed to pin 16 (Error Amp 2) of TL494. | If voltage exceeds ~0.3V (≈30A), TL494 shuts down output. Hiccup mode. | | Over-voltage (OVP) | A Zener diode (13V) + SCR (C106) across output. | If output >13.5V, Zener triggers SCR, shorting output and blowing the primary fuse. | | Over-temperature | NTC thermistor bonded to the main heatsink, connected to TL494 shutdown pin. | Shuts down at >85°C. Automatically resumes when cool. | s36012 power supply circuit diagram
While specific internal schematics can vary by manufacturer, most units follow a standard Half-Bridge or Flyback switching topology. Typical S36012 Circuit Stages Detailed schematics and service manuals for repair are