Disclaimer: Power supplies contain lethal voltages in the primary capacitors (320V DC). Discharge them with a resistor before touching. Safety first.
If you’ve landed here, you are likely staring at a dead power supply. Maybe it’s from a LED sign, a CCTV camera bank, or a 3D printer. The bad news? Official schematics for the "Wannien" brand are almost impossible to find. The good news? The 101V0 is almost certainly a clone of a very common topology. wannien 101v0 power supply schematic
Drop it in the comments. If you show me the top and bottom of the PCB, I can point you to the exact resistor values. Disclaimer: Power supplies contain lethal voltages in the