Look for "domed" or leaking electrolytic capacitors. These are the #1 cause of failure in SMPS boards.
When looking at a Wannien 101V0 Power Supply Schematic , pay close attention to these critical parts: wannien 101v0 power supply schematic verified
If the output voltage is "pumping" (fluctuating rapidly), the issue is often a faulty optocoupler or a dried-out capacitor on the PWM controller's VCC pin. 4. Safety Warning Look for "domed" or leaking electrolytic capacitors
Do you have a (like a blinking LED or clicking sound) that you'd like help diagnosing on this board? wannien 101v0 power supply schematic verified
A bridge rectifier converts AC to DC, which is then smoothed by a large electrolytic "bulk" capacitor.
This article breaks down the architecture, key components, and troubleshooting steps for the Wannien 101V0. 1. Circuit Overview