Wannien 101v0 Power Supply Schematic Exclusive -

Once you understand the schematic, you can improve the stock unit. Here are two "exclusive" mods for advanced users:

Most generic power supplies (Mean Well, Delta, etc.) have readily available datasheets. The Wannien 101v0 is different. It is often sold as an OEM component inside larger machinery, meaning the end-user rarely receives a schematic. This "exclusive" analysis is derived from reverse engineering a pristine unit, tracing the copper paths, and mapping the SMD components. wannien 101v0 power supply schematic exclusive

Without this schematic, troubleshooting a "no-output" or "cycling" condition on a 101v0 requires guesswork. With it, you can probe specific nodes, identify feedback loops, and perform component-level repairs. Once you understand the schematic, you can improve

Unlike cheaper supplies, the Wannien 101v0 includes a MOV (Metal Oxide Varistor) located at RV1 on the schematic. This clamps voltage spikes. Directly behind it is a common-mode choke (L1) with a 20mH rating. Exclusive tip: If the supply is dead but the fuse is okay, check RV1 for a short circuit. It is often sold as an OEM component