Wannien 101v0 Power Supply Schematic Repack May 2026

This repack is released under the CC BY-NC-SA 4.0 license.
You may use, share, and modify it for non-commercial repair, education, or personal projects.
Commercial use requires permission.

Symptoms: No power, fuse is black, R10 (0.22Ω) is open. The Fix:

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Warning: Avoid EXE files claiming to be the schematic repack. Legitimate repacks are PDFs, ZIP files with images, or plain text BOMs. This repack is released under the CC BY-NC-SA 4

Insert a 100W incandescent bulb in series with the AC input. If the bulb flashes bright and then dims, your primary side is healthy. If it stays bright, you have a short.

Working with switch-mode power supplies involves lethal voltages (up to 400V DC on the primary side). Capacitors can retain charge for days. Always discharge bulk capacitors through a 10kΩ/5W resistor before probing. Symptoms: No power, fuse is black, R10 (0

The schematics in a repack are for educational and repair purposes. Modifying the Wannien 101V0 may void its safety certifications (UL, CE). Do not use repaired units in medical or life-support equipment.