power supply is not widely published as a single PDF, this board is a common component in many LCD monitors and small electronics. Troubleshooting typically focuses on its standardized layout for AC input, DC regulation, and inverter sections. JustAnswer Core Specifications & Features Model Identification : Often labeled as 101V0 94V-0 Output Range : Typically provides an adjustable DC output between 0 and 30 Volts with a current capacity up to Safety Protections
While a complete, official schematic for the Wannien 101V0 (E88653) wannien 101v0 power supply schematic
| Original Component (Guess) | Common Substitute | Notes | | :--- | :--- | :--- | | PWM Controller (8-pin) | UC3843AN | Do not use UC3842 (different UVLO thresholds). | | MOSFET (TO-220) | IRF740, 11N60, 10N60 | Ensure Vdss > 600V. | | Secondary Rectifier | MBR3045CT (30A, 45V for 12V out) | For 24V output, use MBR20200CT (200V rating). | | Optocoupler | PC817C, LTV817 | Almost any 4-pin DIP opto works. | | Voltage Reference | TL431CLP | Standard. Check pinout (K, R, A). | | Main Filter Cap | 100uF, 400V (105°C) | Do not undersize the temperature rating. | power supply is not widely published as a
before touching or measuring the board. These can hold lethal high-voltage charges even after the power is disconnected. Wan Nien 101V0 Power Supply Schematic - Expert Q&A | | MOSFET (TO-220) | IRF740, 11N60, 10N60
The schematic indicates several standard SMPS protection features integrated into the Wannien controller and surrounding discrete components:
Updated: February 2025