Wannien 101v0 Power Supply Schematic -

Use a multimeter to verify stable voltage at key output pins as specified in the schematic documentation.

The 101V0 design typically functions as a step-down regulator system. According to documentation on Scribd , the core architecture includes: : It converts a input into a stable output using a dedicated IC voltage regulator. wannien 101v0 power supply schematic

+12V output ---[Resistor Divider]---(TL431 Shunt Regulator)---[LED side of PC817 Optocoupler]---(GND) Use a multimeter to verify stable voltage at

: Look for bulging or leaking tops on the output filter caps. Even if they look fine, they may have high ESR. they may have high ESR.