101v0 Power Supply Schematic Exclusive — Wannien

If blown, check the bridge rectifier and MOSFET for shorts.

: "No power" or "no display" symptoms are often traced to aging or blown capacitors. Testing these with a multimeter is the first step in a standard repair. Switching Transistors

Your first clue is that the "WAN NIEN 101V0" is a Printed Circuit Board (PCB) identifier, not a unique power supply model number. This small but critical distinction explains why the schematic is so hard to find. The board can be found in a surprising variety of devices:

(often labeled 94V-0) is not publicly available as a single "exclusive" document, detailed technical specifications and repair insights can be found through various specialized platforms. This board is commonly used in industrial and electronics applications, such as in Cincinnati Mill monitors . Key Technical Specifications wannien 101v0 power supply schematic exclusive

A high-capacity aluminum electrolytic filter capacitor (typically rated at 400V or 450V) smooths the rippling DC string into a stable high-voltage DC bus. The Switching Heart: PWM Controller and Power MOSFET

Commonly features a dual or triple rail configuration (e.g., +5V DC for logic, +12V or +24V DC for backlights/inverters/motors) Cooling: Passive convection cooling 2. Structural Breakdown of the Schematic

The board itself is a compact, usually green, fiberglass PCB populated with standard through-hole and surface-mount (SMD) components. Key identifiers include: If blown, check the bridge rectifier and MOSFET for shorts

Keep in mind that working with high-voltage power supplies requires caution and attention to safety. Always follow proper safety procedures and guidelines when handling electrical circuits.

⚠️ Switch-mode power supplies contain lethal voltages. The main bulk capacitor can hold over 300V DC even after the unit is unplugged from the wall. Always discharge the main capacitor safely using a high-wattage resistor before touching any components on the primary side. Symptom 1: Completely Dead Board (No Output, Fuse Blown) Cause: A catastrophic short circuit on the primary side. What to check:

If you are using the schematic to troubleshoot a "no power" or "flickering" issue, prioritize these areas: Capacitor Failure: Switching Transistors Your first clue is that the

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

Check connectors and high-heat areas like transformers and heatsinks for cracked solder.

| | Known Value / Observation | Source | |---|---|---| | Fuse | T3.15A 5A | ASUS EXA1202YH repair | | X2 Capacitor | 0.33 µF | ASUS EXA1202YH repair | | Main Electrolytic Capacitor | 120 µF 450 V (replacement stable at 122 µF) | ASUS EXA1202YH repair | | Output Diodes | PK MUR 460 | Russian repair log | | SMD resistor R13 (UPS version) | 01C = 10 kΩ | LYONN UPS repair | | Sense resistors R89, R80 (UPS version) | 0.1 Ω, 3 W | LYONN UPS repair | | Load sensing op‑amp (UPS) | LM324 | LYONN UPS repair | | Board flame‑retardancy rating | 94V0 | PS2 Slim power supply |