Wannien 101v0 Power Supply Schematic _best_

+12V output ---[Resistor Divider]---(TL431 Shunt Regulator)---[LED side of PC817 Optocoupler]---(GND)

PC817 Transistor side ---(Pulls Pin 1 of TL494 low if voltage rises) wannien 101v0 power supply schematic

| Component | What to look for | Likely schematic family | | :--- | :--- | :--- | | | 8-pin DIP: UC3842, UC3843, OB2269 | Standard UC3842 Flyback | | Dual Op-Amp | 8-pin: LM358, LM393 (for voltage/current limit) | Battery charger or LED PSU | | Main Switcher | MOSFET: 4N60, 7N65, 8N60 | 150W-300W flyback | | Output Diode | TO-220: MBR20100, SBL2040 (Schottky) | Low voltage, high current | It includes components like fuses (often a T3

The (often labeled as Wan Nien Model E88653 101V0 ) is a switching mode power supply (SMPS) board commonly found in older LCD monitors and specialized industrial electronics. While a single official "informative paper" for this specific board is not widely indexed in standard academic databases, technical repair data and internal circuit documentation are available through professional repair communities and technical repositories. Technical Overview and Schematic Context SBL2040 (Schottky) | Low voltage

This initial section handles the incoming AC voltage (typically 100-240V) . It includes components like fuses (often a T3.15A L/250V), bridge rectifiers, and large filtering capacitors.

: Primarily used for the Video Display Processor (VDP) and audio.